Re: [Elecraft] (K3) Updates and chatter
On Tue, 21 Jul 2009 09:29:18 -0700, Mike Scott wrote: What has happened to the frequent K3 beta updates and all the chatter that accompanied them? I haven't kept up with the list very well but have noticed that content seems to be missing these days. Wayne went on a 3-week vacation :) Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) NAQCC 3535 K3-100 #508 / KX1 #1311 I hope that he took his laptop with the K3 development software installed :-)) Stewart G3RXQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] (K3) Updates and chatter
The Gurus must be working on some massive release of new firmware :-) Stewart G3RXQ On Mon, 20 Jul 2009 12:21:57 -0500, sr...@swbell.net wrote: What has happened to the frequent K3 beta updates and all the chatter that accompanied them? I haven't kept up with the list very well but have noticed that content seems to be missing these days. Stan Rife W5EWA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 - TX gate issue
I have it on my K3. Slight, but noticeable. Stewart G3RXQ On Sun, 12 Jul 2009 23:13:50 -0400, Terry Price wrote: Has anyone else noticed some distortion using the tx gate option? I heard it on a friends' K3 and tested it on mine, while listening on headphones and the monitor on, after each word or syllable, I hear some distortion or crackling noise. It seems to be when the setting is at 13 or above. I've heard it on 3 different K3's of different vintages but all running 3.19. Terry __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 double beep when not connected
My late parents spent an entire week looking for a trapped bird in their house. A neighbour found the smoke alarm birdie :-) 73 Stewart G3RXQ The only beep-beeping I've come across has been laptop PCs left on standby warning that their batteries are about to run down. I think some mobile phones and VHF hand-helds might do that too. It's very hard to determine where an infrequent beeping sound is coming from. My wife and I were once woken in the night and spent about an hour searching for the source of a regular but infrequent beep, which turned out to be the (mains powered) smoke alarm telling us that the backup batteries (which I didn't even know existed, and which were 6 years old) were about to die. - Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Filter Question
I agree. The cost of the K3 filters is now so high in the UK, that I want to get away with the minimum number necessary. 73 Stewart G3RXQ On Thu, 9 Jul 2009 10:00:42 -0400, Joe Subich, W4TV wrote: I wonder if there is any possibility of allowing AM TX and/or ESSB via the FM filter... It is theoretically possible to transmit AM and ESSB through the FM filter but the K3 is currently configured to prohibit AM and ESSB transmit unless the 6 KHz filter is used. I have transmitted using the FM filter by setting the K3 as if the FM filter was an AM filter but then I can not transmit FM without resetting the filter set-up. Elecraft will argue that the 6 KHz filter is necessary to prevent transmitted images (the DSP IF is 15 KHz, the image is 30 KHz away from the transmit frequency). However, I can not measure any image - to -120 dB from the CW level - when looking at the transmitter output with a directional coupler using the SDR-IQ as a spectrum analyzer. This is as expected since the FM filter should be at least -60 dB at +/-23 (2:1 shape factor) with an ultimate attenuation of at least -100 dB. It would certainly be nice if the 6 KHz restriction was removed. 73, ... Joe, W4TV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brett Howard Sent: Thursday, July 09, 2009 2:21 AM To: Bob Cunnings Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 Filter Question I forgot to go back to that... I was thrown off by the comment on the order page that said you only need one of each filter for transmit. I know that doesn't fully say what I was hoping for though I wonder if there is any possibility of allowing AM TX and/or ESSB via the FM filter... As I'd like to have maximum flexibility but only have one slot left because of the way I have setup the radio for what I spend most of my time doing. Thanks for the assistance gentlemen. ~Brett On Thu, 2009-07-09 at 00:13 -0600, Bob Cunnings wrote: Manual, pg 74: Rule #1: If you plan to use a particular filter for both transmitting and receiving (main receiver), you'll need to install it on the RF board. You can optionally install a filter of the same or similar bandwidth on the sub receiver for receive-only use. (This is recommended since it will keep the receivers identical.) Bob NW8L On Wed, Jul 8, 2009 at 11:31 PM, Brett Howardbr...@livecomputers.com wrote: Ok so I'm curious if I'll be able to do what I'd like. I'd like to setup my K3 for maximum flexibility. At the moment I have these filters. 2.8Khz 1.8Khz 1Khz 250Hz These 4 filters are duplicated in the lower 4 slots of both receivers. I'd like to have the ability to do AM and FM both TX and RX in this radio. Can I add the AM filter and KBPF into the main RX and then put the FM filter into the KRX3? I'm hoping that I can then use the MainRX for broad frequency coverage and AM broadcast receive. Then if I ever want to do FM work I simply have to use the sub receiver to do so. Will TX through the FM filter work with it in the sub RX... To the best of my knowledge it appears that I can set the rig up in this fashion but that doesn't always mean it will work how I expect it to. Am I all wet here? Thanks ~Brett __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list
Re: [Elecraft] SPL N/A with everybody on CW?
Yes, I too had the feeling that this used to work. Stewart G3RXQ On Fri, 19 Jun 2009 22:42:52 -0700, Brett Howard wrote: I should also state that I swear this was just working a minute ago and now I seem to always get SUB N/A unless both VFO's are on the same band. On Fri, 2009-06-19 at 22:20 -0700, Brett Howard wrote: Right now I've got VFO A on 14.030.00 and VFO B on 7.027.00 and I'd like to transmit on the VFO B freq. Or I'm trying to setup N1MM so that when I click on the VFO B log section that it switches on split so that I can TX in the right band. But I keep getting SPL N/A. I even then tapped A-B twice and then went back to those frequencies and still got SPL N/A. Seems like I'm unable to use the split and TX on VFO B if I'm on independant bands? And yes both are set to CW. Any ideas what I'm doing wrong? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Noise Reduction..revisited
I agree, whatever algorithm BHI uses, it really works. 73 Stewart G3RXQ On Wed, 29 Apr 2009 16:05:07 -0500, Bill NY9H wrote: I have two Hear-it speakers from England's BHI company hooked thru my microham controller's headphone outputwhich is connected to the 7800 the K3. With a low- mid aggressive setting they don't sound anything but quieter. (what a concept)... leave them in line most all the time. No gurgling, whooshing... or D-Star audio emulations. (Much better than the NCT licensed stuff Clearspeech/Heil now West Mountain Radio). Granted if I was using a GrandioseSweetness18 3 way, I might have a different outcome. Then again I could pipe it thru my UREI time-aligned monitors. 40 years in the audio business.tells me the BHI algorithm is a winner whatever they are doing ...I wish Lyle would do ( if the DSP can handle it ) And I do know the existing design does it the other way . Seems we revisit this one about every 118 days.. bill __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] My K3's hissy and noisy audio
That's my view as well. Stewart G3RXQ On Sun, 5 Apr 2009 17:09:08 -0400, Steve Ellington wrote: Perhaps the band noise is more obvious in the K3 because the low frequency audio is restricted causing the noise to be distributed over a more narrow range. This lack of bass tends to induce for ear fatigue. Steve Ellington n...@carolina.rr.com - Original Message - From: ab2tc ab...@arrl.net To: elecraft@mailman.qth.net Sent: Sunday, April 05, 2009 4:42 PM Subject: Re: [Elecraft] My K3's hissy and noisy audio Hi all, In my view the only problem with the K3 being hissy is the AGC threshold. On 20m and below even with AGC threshold set to the maximum (008), just the atmospheric noise is at or above the threshold and this is indeed tiring to listen to. I solve the problem by turning down the RF gain; I notice many others instead turn the AGC slope way up (actually low number), which has a similar effect for strong signals. Very high on my wish list is for at least another 5dB increase in the AGC threshold. The present range 002-008 is just not enough. Sorry to pop this balloon but I'm in Arizona, USA and I concur. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html - AB2TC - Knut -- View this message in context: http://n2.nabble.com/My-K3%27s-hissy-and-noisy-audio-tp2588008p2590003.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] OT Relays with diodes built in (inductive kick)
A catcha to be aware of if you are building kit that uses DIL plugin relays. Some of these relays have diodes already fitted internally across the coil. I have built a couple of projects on PCB's, and wondered why the relay would not operate. Reversing the coil connections got things working. 73 Stewart G3RXQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Power levels
Spent a few hours in WPX SSB, but gave up as power levels from my K3 were all over the place. My linear did not appreciate the wild input power swings. Back to the bad old days. Using the latest beta. Hope this problem gets fixed soon. 73 Stewart G3RXQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Power levels
Hi Dave, No it's not the spike problem. I think that it is close to the tune then creep up in power issue. It only seems to be a problem when the KPA3 is selected. The power output on either a whistle or using the 2 tone oscillator is low on SSB, and hitting the key puts the power back up. However, the increased/restored power level is nowhere near as stable or repeatable as I would like. Bands above 40m seem unaffected. 73 Stewart G3RXQ On Mon, 30 Mar 2009 17:53:19 +0100, Dave G4AON wrote: I am also using the latest beta (3.04) and don't find the power level on SSB swings much, it was also OK in that regard with the previous beta (3.03). The firmware between v2.38, which as fine, to the last two suffered badly from short duration spikes on SSB, these spikes could be readily produced by scratching a microphone grille or sibilants in speech. My drive levels are typically 23~25 Watts to an Acom 1000 linear. Is this the same tune then creep up in power issue as noted by others, or a general tendency to create high power spikes? 73 Dave, G4AON === Spent a few hours in WPX SSB, but gave up as power levels from my K3 were all over the place. My linear did not appreciate the wild input power swings. Back to the bad old days. Using the latest beta. Hope this problem gets fixed soon. 73 Stewart G3RXQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Alaska Volcano pix
Ugh ! Just booked an Alaskan cruise... Do we need to take hard hats ? 73 Stewart G3RXQ On Sat, 28 Mar 2009 12:59:40 -0400, ron wrote: Jim Wiley wrote: This is very OT, to be sure, but perhaps interesting to some of you: For those of you who haven't already discovered this, there are some really awesome photos of the Mt. Redoubt volcano and it's surrounding area on the Anchorage Daily News web site, including eruption photos and pictures of ashfall. go to: http://www.adn.com/ (The Anchorage Daily News web-site) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 - Transverter/HF
On Sun, 8 Mar 2009 15:22:39 -0700, wayne burdick wrote: You would have to use the AUX RF input for the sub RX in this case (because the MAIN path is connected to the transverter IN jack on the KXV3). Hold BSET, then tap ANT to switch the sub from MAIN to AUX. AUX can be either the non-transmit KAT3 jack or the AUX RF BNC jack, depending on how your sub receiver is wired. That's what I was afraid you would say. I don't use the AUX RF input as I like to maintain either the ANT1/ANT2 or RX ant path for both the MAIN and SUB RX's on HF. If the main RX is listening on 80 m, then the KXV3's XVTR IN jack is not available to the sub. You would have to bring the transverter signal in to the sub's AUX RF BNC jack. You could use a Y cable to route the transverer signal to both XVTR IN and AUX RF. I don't suppose the Y cable would be a satisfactory solution if used with the RX ANT. Further, when I tune the Sub RX the display changes from a 2m to the I/F frequency. I thought I had fixed that in the most recent code (2.99). Is that what you're using? I was using 2.94, however I now have 2.99, so will try that. 73 Stewart G3RXQ tnx Wayne N6KR What's going on ? 73 Stewart G3RXQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html --- http://www.elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 - Transverter/HF
I don't know if I am trying to do the impossible, wanting to listen on 2m and 80m simultaneously. I have a homebrew 2m transverter connected via the KXV3 with a 28MHz I/F setting. If I set up 2m on Main RX , then I cannot get anything out of the Sub RX when set to 80m. If I set up 80m on Main RX , then I cannot get anything out of the Sub RX when set to 2m. Further, when I tune the Sub RX the display changes from a 2m to the I/F frequency. What's going on ? 73 Stewart G3RXQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 - scanning transverter frequencies
Having just completed a home brew 144MHz - 28MHz transverter, I thought that I would set the K3 scanning to monitor repeater output frequencies. Although I have used scanning successfully on other bands, all I get is Scan N/A. What am I doing wrong ? 73 Stewart G3RXQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 - AFSK A
I have been busy setting up MMVARI together with N1MM to use in RTTY contests. I have not encountered any real problems, however I am a little confused when it comes to using the K3 in the AFSK A mode. I am using this mode because it always has the RTTY LSB selected as default. The audio tones are fed into the K3 via the LINE IN. In the Data Mode section of the K3 Owners Manual it says:- AFSK A also uses Audio-shift transmit, but is optimized for RTTY. The VFO displays the RTTY Mark frequency, and LSB is normal. I am not seeing the Mark frequency displayed on the VFO, but one which seems to represent the suppressed carrier. The displayed frequency is offset from the Mark frequency by about 1.3 kHz. This would correspond with the middle of the K3 filter passband. It would be nice to display the real (yes I know it's audio) Mark frequency as this seems to be a standard. a) Am I missing something in my K3 setup ? or b) The manual is wrong ? or c) Something else ? 73 Stewart G3RXQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 - AFSK A
Hi Lyle, Thanks for your reply. A bit more investigation shows that switching between AFSK A, DATA A, USB or LSB makes no difference as far as the frequency offset is concerned. What does make a difference is switching between Digital mode and CW/SSB in N1MM... In non Digital Modes the K3 VFO frequency display corresponds exactly with the Bandmap for any K3 mode selected. However, it appears that in the Digital modes N1MM offsets the K3 carrier frequency whilst showing the correct Mark frequency on the Bandmap and MMVARI cursor. Or, I think that is what is happening... My brain hurts ! 73 Stewart G3RXQ On Mon, 09 Feb 2009 07:11:25 -0800, Lyle Johnson wrote: Hello Stewart! Be sure you use the PITCH control to select the tone pair you desire to use. The K3 will then display the RF frequency corresponding to the RTTY Mark tone. As you change pitches, the frequency display won't alter but the offset of the radios suppressed carrier will move in accordance with the selected PITCH. If you engage the dual tone RTTY filter, it will be set up for the selected PITCH. Be sure the RTTY program is set to the same pitch. Some programmes are waterfall-based and change the Tx tones to match the Rx tones. If you are using such a program, you may be better off with DATA A, and if you want LSB then hold ALT to change sidebands for DATA A so that you see the LSB icon. IN thie case of using DATA A, the radio will display the suppressed carrier frequency rather than the MARK frequency. 73, Lyle KK7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 - SteppIR comm problem
Jim, I have mine hard connected the way you describe and it communicates OK with my K3 at 38.4kB with KENW mode. As has been said before AUTO INF=1 and SteppIR in General Mode. 73 Stewart G3RXQ On Mon, 9 Feb 2009 12:37:42 -0500, Jim Spears wrote: I should have pointed out that the specific problem I am trying to solve now is a hard connect from K3 RS232 port to SteppIR Data In port. No Y cable, no PC based software involved. I am not convinced that the SteppIR is listening. Jim N1NK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3-EZ Software
Does it for me as well. A very useful program. Stewart G3RXQ On Fri, 6 Feb 2009 06:18:36 -0800 (PST), Lee Buller wrote: While exploring the Elecraft site, I discovered K3-EZ Software by Bill Coleman. See it at: http://home.roadrunner.com/~n2bc/SW.htm Now, I have no vested interest in the program, but I found it to be quite useful and highly recommend it. I spend some time adjusting the RX equalizer and found that it is quite effective to my hearing loss. It is quite amazing how you can bring up the highs and cut out the lows. I have yet to deal with the TX equalizer. The program seems to give me all the information about the K3 I need and allows me to make changes without digging through the menus. Also, it will allow you to load the memories. Other programs are good too, but it seems that Bill's program goes into the depth of the rig more than others. One thing I would recommend to the user is to use a high baud rate than 4800. The program goes out and changes settings and at 4800 baud it can be quite slow. Let me also say, I have about three or four programs on my computer which talks with the K3 and they are all good...Bill's seems to go (as I said) into the soul of the K3 Lee - K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft Web Site - speed
Thanks to all who replied. I have now tried it with 3 PC's here, and get the same result. So unless they all have the same virus etc the problem looks ISP'ish. The strange thing is that other US based sites such as Telepost and NASA load at full speed. I will get a friend who is with another ISP to try. 73 Stewart G3RXQ On Tue, 3 Feb 2009 17:54:28 GMT, Stewart Baker wrote: Is it me, or is the Elecraft site very slow to load. At present it is a bit like kick starting a Snail. Stewart G3RXQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft Web Site - Speed
I am now able to get fast access the Elecraft site. Back up to Warp Factor 10... Don't know why this is, must be the snow melting ! 73 Stewart G3RXQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft Web Site - speed
Is it me, or is the Elecraft site very slow to load. At present it is a bit like kick starting a Snail. Stewart G3RXQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] K3 owner in spe
Dear Kjeld, You don't say what modes you are intending to operate. I have removed all the extra filters from the list as I have found the standard filter offering from Elecraft to be up to the job on both SSB and CW. However, you might consider adding a 400Hz filter for CW if that is your main interest. The frequency stability of the K3 is excellent, so no need for the high spec oscillator. I have added a Heil headset, as although I have a love/hate relationship with mine with regard to comfort, and it is way too expensive, it does work well. So this is my list... K3/100-F (100 W Transceiver KPA3-F (ATU 100W) KRX3 (Subreceiver) KUSB (USB) KDVR3 (Digital Voice Recorder) KXV3 RX Ant Heil Pro Headset Hope that this helps. 73 Stewart G3RXQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [K3] K3 owner in spe
In which case you will also require the AM FM filters. 73 Stewart G3RXQ On Mon, 2 Feb 2009 17:24:22 +0100, Kjeld Holm wrote: Dear Stewart Would like to be ready for any mode that the DX will be running when the band is open and I am QRV. Vy 73 OZ1CCM Kjeld -Original Message- From: Stewart Baker [mailto:stew...@baker.nildram.co.uk] Sent: 2. februar 2009 17:16 To: Kjeld Holm; elecraft@mailman.qth.net Subject: Re: [Elecraft] [K3] K3 owner in spe Dear Kjeld, You don't say what modes you are intending to operate. I have removed all the extra filters from the list as I have found the standard filter offering from Elecraft to be up to the job on both SSB and CW. However, you might consider adding a 400Hz filter for CW if that is your main interest. The frequency stability of the K3 is excellent, so no need for the high spec oscillator. I have added a Heil headset, as although I have a love/hate relationship with mine with regard to comfort, and it is way too expensive, it does work well. So this is my list... K3/100-F (100 W Transceiver KPA3-F (ATU 100W) KRX3 (Subreceiver) KUSB (USB) KDVR3 (Digital Voice Recorder) KXV3 RX Ant Heil Pro Headset Hope that this helps. 73 Stewart G3RXQ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3_EZ Software
Hi, Recently I have been trialing K3_EZ software from Bill N2BC. Its features include: Band stack Registers, Frequency Memories, an Equalizer Manager and a Configuration Helper. Great software, well worth a look.. 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 KRX3
Hi Barry, Do make sure that BOTH connectors between the Front Panel and DSP boards are mated. If you have the connector with the single row of pins out of it's socket then the Front Panel mic socket will not work. So far, I have managed to achieve this TWICE ! 73 Stewart G3RXQ On Thu, 22 Jan 2009 09:46:19 -, Barry Simpson wrote: I have just completed the installation of a KRX3 into my K3. I found the installation process difficult but after a minor hiccup with the synthesiser calibration I had to reload the firmware it is working fine and appears to perform exactly the same as the main receiver. However the bad news is that the front panel microphone socket is no longer operative although the rear microphone connector works fine. And yes I have tried the various menu settings but to no avail. It would seem that all the plugging and unplugging has disturbed or broken one of the microphone socket connections. Before I start delving into the rig again has anyone any suggestion where the problem might lie. I seem to recall someone else having a similar problem after installing the KRX3. Any input would be appreciated. Barry Simpson VK2BJ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 Sub RX Independence
We're getting closer ! I see that the latest Errata for the KRX3 manual (12/1/09) includes operating instructions for when the Main and Sub receivers become fully independent . Maybe there should be a day named after the event... :-) 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] [K3] front mic not working after subRx install
Mike, Make sure that BOTH connectors between the front panel and DSP boards are mated. If you leave the one with the single row of pins unmated you will get the problem of the front mic socket not working. Trust me - I have done this TWICE !!! 73 Stewart G3RXQ On Mon, 12 Jan 2009 15:18:38 -0800, Mike Scott wrote: I installed the second receiver in my K3 and at the same time made the prescribed audio and line out modifications. After checking out the receiver my microphone is now dead using the front panel. Rear connection works okay. I have been using the front panel microphone connector without a hitch up until the time I went off line to make the above modifications. So has this happened to anyone else and is there something obvious before I start taking covers off? One thing to note, I did have a problem with the SubRx install. The Sub-In and Sub-Out board connections to the SubRx are very difficult to tell when they are mated correctly as most of the pins are not visible. I apparently ended up with an improper mating and smoked the sub-out board. A quick call to Elecraft identified the problem and a new sub-out board put me on the air after a very careful inspection of the connectors this time. I am wondering if the sub-out is the only thing that I smoked now. The microphone-audio path seems quite remote from all this activity but I don't know what sneak paths I might have created with a misconnected sub-out connection. I checked microphone gain (it is set at 30 with front panel-high, no bias), just as it was before this problem arose. Those mic settings work well for the rear connector using the same microphone. I use one of those Kenwood adapters to audio plugs that came with a microphone and the microphone has a dynamic element. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: k3 SWR readings seem generous
I need a little more RF tickling the spider's legs to get them to move off the open wire feeder :-) Stewart G3RXQ On Sat, 03 Jan 2009 21:22:49 -0500, p...@n4lcd.com wrote: I always use 5W, ... when I tune up my external ATU. I have my K3 set to use 0.2 Watt for tuning my external LDG tuner as it will theoretically tune with 0.1 Watt. Works great. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: k3 SWR readings seem generous
No problem Wayne. I always use 5W, and the LP-100A when I tune up my external ATU. 73 Stewart G3RXQ On Fri, 2 Jan 2009 10:01:08 -0800, wayne burdick wrote: Stewart Baker wrote: The K3 output was from ANT1 using the internal ATU. The ATU was automatically tuned to 1:1 on all bands. The results I got for 2:1 VSWR are as follows:- LP-100K3 160 1.991.8 80 1.991.8 60 1.991.8 40 1.951.8 30 1.971.6 20 1.971.4 17 1.971.3 15 1.961.2 12 1.961.5 10 1.961.4 Much of this could be attributed to the different locations of the two bridges (see my previous email). Strays will vary from band to band. Also, the K3's bridge will be a little more accurate at 100 W than at 10 W due to the bridge diode drops. I compensate for this to some degree in firmware, and I'll review it when I get a chance. 73, Wayne N6KR --- http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: AW: [Elecraft] Isolation between Ant 1 and 2??
I would consider that figure acceptable. With my K3 the isolation between ANT1 and ANT2 is 42dB worst case, 56dB Max. Moving the single wires around made no difference. I suspect that the level of isolation is determined by the ATU PCB layout. Given the size of that board I think that the isolation obtained is reasonable. 73 Stewart G3RXQ On Sat, 3 Jan 2009 13:43:21 +0100, Koppendorfer Klaus wrote: yes isolation between ant1 and ant2 is very bad... if I have time I try to change the silgle wires from the rs323 ports to the atu-board to koax wires, maybe this will help a little 73 OE6KYG KX1 244 K2 1331 K3 115 -Ursprüngliche Nachricht- Von: elecraft-boun...@mailman.qth.net [mailto:elecraft- boun...@mailman.qth.net] Im Auftrag von Dick Roth, KA1OZ Gesendet: Samstag, 03. Jänner 2009 06:14 An: Elecraft Reflector Betreff: [Elecraft] Isolation between Ant 1 and 2?? Hello and Happy New Year!! Was doing some testing and discovered Ant 1 signal on Ant 2. Ant 1 is my GAP Titan-DX and Ant 2 is a 100W dummy load. I was just reading the mail on 75 meters and switched to Ant 2 to test power. When key was off, I heard part of the QSO that was going on. While on my dummy load, I was receiving a station S3, which on Ant 1 was 20 over S9. Has anyone else seen this crosstalk? If so, what is considered acceptable? -- 73, Dick ka1oz Middleborough, MA Radio: Elecraft K3/100(Kit) SN 859 Antenna: Titan-DX ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: k3 SWR readings seem generous
On Sat, 3 Jan 2009 07:34:13 -0600, Phil Debbie Salas wrote: I always use 5W, ... when I tune up my external ATU. Actually, I use 15 watts for tuning both the internal K3 tuner, as well as my external MFJ-998 tuner. I do this for two reasons: 1) I get much better SWR agreement between 15 watts and full power than I do with 5 watts and full power, especially on the external tuner. 2) I figure that using a switching-type tuner stresses the 10-watt output circuitry of the K3 at 5-watts tune power (all that hot-switching). But at 15 watts, the K3 100 watt PA should have plenty of margin. It might be interesting to know what power levels Elecraft recommends regarding radio stress during tuning. Phil - AD5X With my setup. a) I use 5W which gives an accurate VSWR reading on the LP-100A. b) A power level of 5W keeps the potential QRM level to a minimum. Of course radiating no tune up power would be best. c) I am sure that the K3 10W PA would stand 5W for a 30 second tune.. d) I pre-tune my homebrew fully balanced ATU prior to pressing the TUNE button. No live RF switching is involved. Hot switching RF in an external ATU is not to be recommended for any radio at any level. Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: k3 SWR readings seem generous
On Sat, 3 Jan 2009 08:58:57 -0600, Phil Debbie Salas wrote: Hot switching RF in an external ATU is not to be recommended for any radio at any level. BUT - you DO hot-switch your K3's RF output when using any relay-based auto-tuner, including the internal K3 auto-tuner. So my reasoning is that I'd rather hot-switch the 100-watt PA at 15 watts rather than the 10-watt PA at 5 watts. And then, my MFJ-998 (which I use with my ALS-600) reads SWR more accurately at 15 watts than it does at 5 watts, so when I go to full power the tuned SWR is still minimum. As Wayne stated earlier, SWR readings at low power may be less accurate due to the detector diode voltage drop at low power. Phil - AD5X OK, to be strictly accurate.. Hot switching RF in an external ATU (other than auto-tuners designed to be operated that way) is not to be recommended for any radio at any level. I am sure that the *internal* K3 ATU has been designed to perform its tuning function at a safe power level, whatever output power level the operator selects. Using the LP-100A I am avoiding (for the present) the influence detector diode volts drops vs power have on my SWR measurements. Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] k3 SWR readings seem generous
This thread came at the right time. I have just finished re-calibrating my LP-100A. I did this after having used the unit for 6 months, however the calibration was very close to the original settings. Then I thought that I would check my K3 SWR indication. The results are not as good as I would expect. I set the K3 with a tune power of 10W, representing the level of power one might use to adjust an ATU. The measurements I made were using 2 x 8 inch lengths of RG8U from the K3 into the LP-100A coupler, and then from the coupler into the dummy load. The dummy load is a precision 100W one which I measured with a VNA and has a VSWR of 1.03 from 1 to 30 Mhz. To simulate a 2:1 VSWR I used another dummy load (not quite as good) in parallel. The K3 output was from ANT1 using the internal ATU. The ATU was automatically tuned to 1:1 on all bands. The results I got for 2:1 VSWR are as follows:- LP-100 K3 160 1.991.8 80 1.991.8 60 1.991.8 40 1.951.8 30 1.971.6 20 1.971.4 17 1.971.3 15 1.961.2 12 1.961.5 10 1.961.4 As can be seen my K3 SWR indication constantly under reads. However, it really gets bad on 20,17 15. I will be interested in the results of others conducting similar tests. 73 Stewart G3RXQ On Thu, 1 Jan 2009 17:47:04 -0800, Mike Scott wrote: I have been working on antennas today and have a puzzle. I am finding that the K3 SWR indications are unbelievable generous. With my 40M inverted V fed with RG8X (50 ohm) coax I see that the K3 seems generous in the SWR indication on tune with ATU bypassed. I have noticed a slight change in SWR with K3 power setting so the following was taken with K3 tune power set to 100 watts. If I set it to 10 watts the discrepancy is greater... SWR SWR SWR Freq. K3 VA1 Daiwa 7.00 MHz 1.3 1.922.0 7.05 MHz 1.2 1.921.9 7.1 MHz 1.2 1.981.95 7.15 MHz 1.3 2.262.1 7.2 MHz 1.9 2.602.3 7.25 MHz 1.5 2.882.6 7.3 MHz 1.6 3.322.7 The Daiwa is the CN-101L cross needle meter. The VA1 is the Autek Rx Vector antenna analyzer. The VA1 does not have a tuned input so it is possible that it can be fooled by local broadcast stations. I don't suspect this issue here as there aren't any close by broadcast stations that I am aware of. The Daiwa and the VA1 tend to agree pretty well anyway. The K3 measurements are the outliers. This antenna on a Tenna Dipper shows minimal SWR at 7.040 MHz, just where I tuned it a few years ago. The LED does not extinguish indicating higher than 1:1 SWR at the minimum. If you look at the numbers, I guess I don't believe the K3, Do you think my antenna is below 1.6 to 1 across the entire 40M band? So now on to 20M dipole fed with RG58 (50 Ohm Coax)... The Tenna Dipper fully extinguishes at 13.805 MHz indicating that my antenna is bit too long but is close to 1:1 at that frequency. FreqK3 VA1 Daiwa 13.81 -- 1.12-- 14.0 MHz1.11.241.31 14.1 MHz1.11.301.70 14.2 MHz1.11.551.85 14.3 MHz1.21.691.85 RG58 may have some losses on this band so perhaps all of the SWR indications are generous, some more than others. The dipole is a low one and probably isn't 72 ohms at the feed point. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Firmware Rev. 2.76: No AF noise burst; PRE/ATTN independent for sub RX; etc.
On my K3 there is still quite a loud speaker 'pop' with Power On and Off after loading firmware revision 2.76. Looking at the NS data sheet for the audio amplifier IC shows that it has click suppression built in. The length of the suppression period is determined by the value of the capacitor on the Bypass connection.The value of the bypass capacitor is related to the input coupling capacitor. On the K3 cct diagram this is shown as a 0.47uF, which suggests a 10uF be fitted to the Bypass connection to give a click mute period of 0.4S. However, the K3 cct diagram shows a 3.3uF fitted, which gives only 0.12S. Any benefit increasing the value to 10uF ? 73 Stewart G3RXQ On Tue, 23 Dec 2008 10:37:46 -0800, wayne burdick wrote: K3 beta-test firmware revision 2.76 (with DSP rev 1.98) is now available. See release notes below. Please send any problem reports to k3supp...@elecraft.com. For instructions on how to load beta firmware, please see: http://www.elecraft.com/K3/k3_software.htm 73, Wayne N6KR * * * MCU 2.76 / DSP 1.98, 12-21-2008 * POWER-ON AF NOISE BURST: This should now be eliminated. * DIGIT 2 SWITCH TONE FEEDBACK RESTORED. The '2' key on the numeric keypad now provides tone feedback when used for numeric entry or within menu entries. There's no tone when it's used as REV (temporary A/B VFO reverse). * SSB TX AFTER VFO A/B SWAP: Transmit filter settings are now correct after any A/B swap, regardless of the modes of VFO A and B. This had been noted by some customers as a problem on power-up, but it could occur anytime the VFOs were in different modes at the time of an A/B swap. * INDEPENDENT PREAMP AND ATTN FOR SUB RECEIVER: The preamp and attenuator settings for the receiver are now independent of main. On each band, you can set up the sub's preamp/attenuator as desired using BSET. The sub's preamp/attenuator are separate even in diversity mode, where you'll often be using a lower-gain antenna for the sub receiver. Note: A second tap of AB within the 2-second window still copies all main receiver settings to the sub, including preamp and attenuator. For software developers: * FR0 COMMAND (SPLIT CANCEL): Now correctly restores the VFO A arrow icon. * CONFIG:KPA3 MENU ENTRY: The parameter for this menu entry is now accessible via the MP command. * FA/FB commands and loss of PLL lock: Large FA/FB frequency steps were, on rare occasion, causing loss of PLL lock. This has been corrected. * Added PA$ (sub RX preamp) and RA$ (sub RX attenuator) commands. This is in conjunction with the sub preamp and attenuator settings now being independent of main (see above). During BSET, both return ?; at present. --- http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 VFO A tension
I got fed up with the felt hiss, so I made a couple of new washers from a finer grade of felt. This was obtained from the wife's sewing stock at little (YOU cook the meal tonight) cost.. 73 Stewart G3RXQ On Sun, 21 Dec 2008 20:50:14 -0800 (PST), VK5ABQ wrote: I was annoyed by the felt on felt hiss generated by rotation of VFO A and took about six attempts to find a compromise between hiss and rotation damping. Ideally I would prefer it to rotate less easily though. - Shane K3/10: S/N 2127, KBPF3, KFL3B-FM, KFL3A-6K, KFL3A-2.8K, KFL3A-400, KTCXO3-1 KXV3. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 - VCO Calibration temperature
Following the thread concerning PLL errors on the higher frequency bands, I decided to run a check on my K3. I found that at a FP temp of over 38deg, I got a PLL2 error message. I then implemented the mod that Wayne recently posted in which a 180k resistor shunts R10 to give 56k. This cured the problem, and I have now implemented the mod on both Synth1 and Synth2. Before I re-ran the CAL for both VCO's, I looked to see at what approximate temperature this should be carried out. I could find nothing in the manual. My thought are, to get the best VCO temperature tracking that the CAL should be carried out at the mid point of operating temperature range. Is this correct, or doesn't it matter ? 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 - 2.73/1.98 Clicks on Power On
That should take care of it T.I.A. 73 Stewart G3RXQ On Fri, 12 Dec 2008 12:47:29 -0800, Eric Swartz - WA6HHQ, Elecraft wrote: Hi Mike, It is. This is something that doesn't show up all the time so we were not aware of it until it was noted here on the list recently. We're adding an additional power on mute time delay to the firmware right now. 73, Eric Mike Scott wrote: The power on rush of noise is almost earsplitting here in headset and external speakers, K3 serial 509. It lasts for about a quarter of a second. If I had the volume turned up it could cause damage to a speaker or my ears, it is that loud. For this reason alone it should be a high priority fix. Perhaps just blank the receiver in the turn on sequence for enough time to cover the transient. It has existed over the last several firmware updates. I notice that it is worse when the bandwidth is set wider such as 2.7 KHz SSB mode. It does not matter if a signal is present or not. I have high background noise level here (S-7) so I expect that might be equivalent to having a signal present. When set for CW at 400 Hz the momentary noise is there but much-much subdued and not objectionable at all so CW operators may not notice the effect. The effect is there in SSB/Data/CW modes. I don't hear it in AM/13KHz. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) K3-100 #508/ KX1 #1311 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 - 2.73/1.98 Clicks on Power On
Hi, Since installing MCU 2.73. I have noticed that power on is accompanied by a number of loud, rather unpleasant clicks/clunks from the speaker. 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 TX Audio from LINE OUT V2.72/V1.98
Nice firmware addition, works well. Thanks Guys. 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: K3 Beta firmware rev. 2.72: updated DVR support, etc.
Lyle, The high priority being given to the SUB IND is great news. I suspect that a number of K3 users are already tuned in :-) 73 Stewart G3RXQ Having the Sub Rx work on a different band than the Main is a very high priority work in progress. Stay tuned... 73, Lyle KK7P ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] UK Elecraft net report for Sunday 23rd November
Using a pair of small Creative (non amplified) computer speakers, and the audio quality from the K3 is excellent. I must be very lucky, I can't hear any of the birdies listed. My K3 has the 2nd RX, however I took no special care in the routing of the signal cables. 73 Stewart G3RXQ On Sun, 23 Nov 2008 14:25:20 +, Dave G4AON wrote: We had another busy and interesting net this week. I never fail to be amazed at how we manage to find useful subjects that are Elecraft related each week! Main topics were: External speakers, for anyone interested mine came from Argos (http://www.argos.co.uk/), part number 513/6113, Acoustic Solutions in black that are 9.5 tall by just over 5.5 wide - cost £19.99 a pair. I tried Richer Sounds for their offer on Eltax Concept mini speakers at £9.99 a pair, but they wouldn't sell them for cash without having my name and address for the receipt, which in reality was for junk mail purposes, so they were left in the shop. Birdies on the K3 as noted following a firmware update. The general view was it had nothing to do with firmware updates. The frequencies mentioned were 21.022, 14.324, 7.160 and 3.580. I pick up all of those except the 21 MHz one. The strongest is 3.580. Power Poles, love them or hate them they are used in the K2/100 and K3! CPC in the UK stock them, when I checked they were listed as of USA origin perhaps misprinted as unbranded. Part number 21-3300, CPC are at: http://cpc.farnell.com/ Noise reduction and roofing filters... Narrow filters give worse noise reduction performance. Interesting observations by Doug, GM0ELP, on how much of an issue it can be at times and how much better noise reduction works with a wider filter. He's going to see if Lyle or Wayne can include manual filter selection as an option. Observations that the KXV3 isn't needed if you just want to use the IF out, it can be taken from the main RF board to a single hole fixing BNC socket fitted to the KXV3 blanking plate. Saves a lot of money... See the KXV3 diagram/fitting instructions. Clifton Labs K2 IF buffer kit. Power supplies, Voltage drop and fitting modules to the K3 (remember to exit the menu and power off for the module to be recognised). Schurr Profi and other paddles, including the Hex key and Begali. An interesting point was raised that apparently there are three different makers of the Profi paddles and they are all based on the same design! Stations this week were: G0VGS, Ian G4LWA, Alan G7BQM, Ted GM0ELP, Doug G8FMH, Alan M3WCK, Colin G4NWJ, Jim G4LOP, Chris MM0XDG, David GI4FZD, Paul 73 until next week. Dave, G4AON K3/100 #80, Acom 1000, dipole ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Main and Sub Receiver differences
I noticed this as well, hope that it gets sorted soon.. 73 Stewart G3RXQ On Thu, 20 Nov 2008 17:19:27 -0800 (PST), Barry N1EU wrote: N5WNG wrote: The question is does the RX EQ get applied to both receivers? No, with the current firmware, RX EQ is only applied to the main rx. I'm sure this limitation will eventually be lifted. 73, Barry N1EU ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Beta firmware rev. 2.67: Main/Sub AF balance control; AGC-off AF limiter
Seconded... Just what the 2nd RX needed. 73 Stewart G3RXQ On Wed, 19 Nov 2008 09:37:53 +0100, Alexandr Kobranov wrote: Excellent job, Wayne! SUB/MAIN ballance and easy ANT switching is really big improvement! Many thanks, Lexa, ok1dst with still growing K3/10 :-) wayne burdick napsal(a): K3 beta-test firmware revision 2.67 (with DSP rev 1.96) is now available. Please send any problem reports to [EMAIL PROTECTED] For instructions on how to load beta firmware, please see: http://www.elecraft.com/K3/k3_software.htm Full details appear below. 73, Wayne N6KR * * * MCU 2.67 / DSP 1.96, 11-18-2008 * MAIN/SUB BALANCE CONTROL: If CONFIG:SUB AF is set to BALANCE, then the SUB AF GAIN control becomes a main/sub AF balance control when the sub receiver is turned on (including diversity mode). In this case the MAIN AF GAIN controls the AF gain level for both receivers. When SUB AF is at 12 o' clock, both receivers will be at full volume (main left, sub right). If SUB AF is rotated fully counter-clockwise, you'll hear only the main receiver. If it's rotated fully clockwise, you'll hear only the sub receiver. At intermediate settings you'll hear both. A BALANCE control is very useful for contesting and split operation. But it can also save a lot of AF gain control tweaking (i.e., matching main and sub), since MAIN AF controls both main and sub receiver audio. * AGC-OFF AF LIMITER: An adjustable AF output limiter has been added for operators who turn AGC off. This can protect your ears if a large signal appears. Signals or noise above the threshold will sound highly distorted due to the limiting action, reminding you to back down the AF or RF gain. The associated menu entry, CONFIG:AF LIM, defaults to NOR. Typical settings for those who often turn AGC off are 17 to 23, but some experimentation will be required. * EASY SUB RX ANTENNA SWITCHING: A hold of RX ANT will alternate between MAIN and AUX for the sub receiver's antenna, if the sub is installed. This is faster than going into BSET to switch the sub antenna. * SUB ANT SAVED SEPARATELY FOR DIVERSITY/NON-DIVERSITY: At many stations, the sub receiver's AUX antenna is only used in diversity mode. The K3 now remembers which sub RX antenna setting you use in diversity and non-diversity cases, so you won't have to use BSET as often. * DIGOUT0 SIGNAL (ACC connector): This now behaves as described in the owner's manual. When a transverter band is selected that is configured for low-power operation (i.e., .01-1.50 mW, and using the KXV3's XVTR IN/OUT jacks), DIGOUT0 provides a low-resistance path to ground that could be used to activate a small relay or other circuitry. At all other times the DIGOUT0 line will float (high-Z). If all transverter bands are configured for low power, then DIGOUT0 can be used as a transverter band selected signal. * POWER LEVEL ON XVTR AND HF BANDS: Switching between HF and transverter bands no longer modifies the present HF band power setting. --- http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 - RFC47 - Circuit diagram error
Documentation for the speaker mod says RFC47 is 100uH. However, the circuit diagram is marked 10uH. 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 - RFC47 - Circuit diagram error
Well spotted Bob. The documentation always takes time to catch up. 73 Stewart G3RXQ On Sun, 16 Nov 2008 10:03:53 -0700, Bob Cunnings wrote: I don't think it's an error. Inspection of the photographs in the Elecraft K3 AF Stage Upgrade Instructions reveals value code brown-black-black which is 10mH. The marking on the new part appears to be 101 which I read as 100mH. So it's just a recent change not reflected in the published schematic. Bob NW8L On Sun, Nov 16, 2008 at 4:19 AM, Stewart Baker [EMAIL PROTECTED] wrote: Documentation for the speaker mod says RFC47 is 100uH. However, the circuit diagram is marked 10uH. 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 RF Feedback Problem
Have you tried just running the mic into your K3 without the external station controller ? What is that controller ? 73 Stewart G3RXQ On Sat, 1 Nov 2008 07:57:10 -0600, Dr. James C. Garland wrote: Gang, Im pulling my hair out over an RF feedback problem with my K3/100, and wonder if anybody has any ideas? I use an external station controller that switches key, microphone, CAT, line in/out, etc. between different rigs. The microphone audio connects to the K3s rear panel microphone jack and when the K3s power exceeds about 15W (in SSB), the audio becomes greatly istorted. It does this when all the other cables to the K3 (except the microphone and power cord) are unplugged. It also does it when the audio is fed to the K3 via the rear Line In jack. Everything in my station is well-grounded. Here are some things Ive noticed: 1. The feedback still occurs when a military-type completely shielded 100W dummy load is screwed directly to the K3s antenna port. This suggests the RF from the K3 is getting into the audio line from some other source than radiation from the coax cables in the station, most likely the 12V power cord. To support this conjecture, I also notice that the feedback threshold (15W) is not changed when the K3 drives a linear amplifier. 2. I normally use a 30A Kepco 12V power supply to run the K3 and my other station accessories. The RF feedback problem is improved but not entirely eliminated if I use a separate 12V supply for the K3. A common mode choke on the 12V line doesnt appear to make any difference. 3. I can see some modulation-induced fluctuationss on the 12V line with an oscilloscope that increase with the K3s power setting. I havent looked at these fluctuations closely enough yet to know whether its RF noise or just audiofrequency fluctuations caused by the K3s modulating current draw from the power supply. To summarize, my conclusions so far are that (1) the 12V power cord is a source of RF leakage from the K3, even though the K3 has a filter at its 12V power connector to minimize this leakage; and (2) The audio/DSP circuitry in the K3 is very sensitive to RF much more so than other transceivers in my station. (Ive not had this problem with other rigs.) Because of this RF sensitivity, one evidently has to be very careful when hooking accessories to the K3. The front panel microphone jack is (to me) wired in a curious way, with the Mic ground and PTT ground (shield) connections floating above the K3s chassis with a 100uH rf choke. Similarly, both the hot and shield side of the rear panel mic input jack has series 100uH rf chokes, which isolate the input from chassis ground. The problem with this arrangement is that most accessories that would connect to the rear panel audio input jacks have single-ended outputs, with a shielded cable that is directly tied to chassis ground at the accessory end of the cable. Thus, unless one is very careful, it is easy to have a situtation where the signal grounds in the audio circuitry of the K3 can fluctuate with respect to the K3s chassis ground, and this may be the source of the RF feedback sensitivity. Unfortunately, I cant figure out the detailed mechanism for the feedback closely enough to figure out a solution. Foir example, I dont know whether its better to leave the minus side of my 12V power supply floating, or to tie it to the chassis gound.. And even if I left it floating, it would be tied to the chassis anyway by the other accessories hooked to it, and this might cause more problems than grounding it at the power supply terminal. Somehow, it seems like a wiring change in the ground configuration of the K3s audio circutis to improve RF isolation may be needed to lick the problem completely. 73, Jim Garland W8ZR ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 - KRX3: AF Gain
Make sure that the KRX3 is fully mated with the SUBIN board connectors. 73 Stewart G3RXQ On Wed, 29 Oct 2008 09:02:50 +0100, Mitch Wolfson DJØQN wrote: Hi Lyle, Thanks for the tip.I am using 2.46, and it didn't work until you pointed me in the right direction. Since I had the AF Gain set to HI before I installed the KRX3, I now disabled the KRX3 and changed AF to LO. Then I enabled the KRX3 and changed AF to HI afterwards, and that solved that problem. Now I notice that my KRX3 sensitivity is much lower than the main receiver, which wasn't the case when I installed it. I will try to figure that problem out on my own or otherwise contact support. Thanks again 73, Mitch DJØQN - Original Message - From: Lyle Johnson [EMAIL PROTECTED] To: Mitch Wolfson DJØQN [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Wednesday, October 29, 2008 1:43 AM Subject: Re: [Elecraft] K3 - KRX3: AF Gain Hello Mitch! I have the main receiver's AF Gain set to HI, but I can't find a way to enable that function on the KRX3. Am I missing something, or is this a feature request? Setting the AF GAIn HI or LO in the CONFIG menu sends the appropriate commands to both main and sub receivers if the KRX3 is installed and enabled. With the main receiver on HI, the difference between the two receivers is too great to be able to hear very well on the KRX3, at least for the hard of hearing. The gain imbalance was fixed in firmware release 2.36/1.90. I also confirm it is fixed in the latest development release. I have not specifically checked this in any interim releases. Which firmware do you have loaded in yhour K3? 73, Lyle KK7P ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] [K3] Recording a qso with the K3
Not at present. I hope that this one is on the list. 73 Stewart G3RXQ On Tue, 23 Sep 2008 14:49:14 +, Peter wrote: Hi I like to make a complete record of a qso. With the line-out at the K3 connected to the sound card I can record the rx part. Is it possible to echo the tx audio into line out to record the tx part? Peter PC2A ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KRX3 config problem
Yes, this fairly major feature of the K3 is missing. No timescale for it's implementation been given. 73 Stewart G3RXQ On Fri, 19 Sep 2008 20:15:13 +0900, a.yoshida wrote: Just finished assembling my KRX3. Everything seems to work as advertized except VFO IND setting. When I turn VFO A to set YES I see UNAVAIL in VFO B I am reffering Installation and Operation manual Rev B August 20, 2008. Am I missing something ??? 73 aki ja1nlx ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KRX3 config problem
That's great news Eric, can't wait... 73 Stewart G3RXQ On 19 Sep 2008 08:31:00 -0700, Eric Swartz - WA6HHQ, Elecraft wrote: We're actually working on the firmware for this now. :-) Stay tuned! 73, Eric WA6HHQ _..._ -Original Message- From: Stewart Baker [EMAIL PROTECTED] Date: Friday, Sep 19, 2008 4:27 am Subject: Re: [Elecraft] KRX3 config problem Yes, this fairly major feature of the K3 is missing. No timescale for it's implementation been given. 73 Stewart G3RXQ On Fri, 19 Sep 2008 20:15:13 +0900, a.yoshida wrote: Just finished assembling my KRX3. Everything seems to work as advertized except VFO IND setting. When I turn VFO A to set YES I see UNAVAIL in VFO B I am reffering Installation and Operation manual Rev B August 20, 2008. Am I missing something ??? 73 aki ja1nlx ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KRX3 Installation Step
That's what I did. 73 Stewart G3RXQ On Mon, 8 Sep 2008 08:00:42 -0400, Roy Morris wrote: On page 34 of the Installation and Opeation manual it says to remove the W4 jumber soldered between two pads located between J64A and the KIO3 board. My K3 RF board is Rev A. W4 is hard wired between two pads located between J64A and the KBPF3 board mounted above the K3 RF board. It looks as if I am going to have to temporarily remove the KBPF3 board to remove this jumper. Am I missing something here? Roy Morris W4WFB ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] IARU Region 1 SSB Fieldday this weekend
If the rain doesn't stop soon we will be signing G3MDG/MM ! 73 Stewart G3RXQ Chesham District ARS On Fri, 5 Sep 2008 04:49:35 -0700 (PDT), GW0ETF wrote: Toby Deinhardt wrote: Hi, this weekend is our SSB Fieldday: Saturday 13UTC to 13UTC Sunday. Please listen for /p stations from region 1 this weekend. The DL rules (in English): http://www.darc.de/referate/dx/xedcfr.htm vy 73 de toby GW4TTA/p will (weather permitting!) be qrv from the island of Anglesey, North Wales with up to 2 K3s at our disposal. It's forecast heavy rain so signals may be a little watery.. 73, Stewart GW0ETF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] IARU Region 1 SSB Fieldday this weekend
Hi Glenn, We have taken the precaution of putting the Region 1 Bandplan on a laminated sheet. Our supplier has said that it should still work at a depth of 10m 73 Stewart G3RXQ On Fri, 5 Sep 2008 17:56:40 +0200, ON4WIX wrote: Hi David, we always make sure to stay away at least 3kHz from the relevant segment edges (depending on USB/LSB) and each year we make sure the frequency ranges that can be used for contest style operations (e.g. 80m: 3600-3650 and 3700-3800 (ONLY DX 3775-3800)) are clearly listed in our FD tent in order to avoid out of segment errors. 73 Glenn ON4WIX - Original Message - From: David Pratt [EMAIL PROTECTED] To: ON4WIX [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net Sent: Friday, September 05, 2008 5:43 PM Subject: Re: [Elecraft] IARU Region 1 SSB Fieldday this weekend Fine, but please be so good as to comply with the Region 1 Bandplan. All too often these SSB contest spread LF into the CW section of the bands making it impossible for QRP CW stations to work. 73 thanks David G4DMP In a recent message, ON4WIX [EMAIL PROTECTED] wrote ... If you hear ON4NOK/p, give us a yell. My K3 will be floating around on our club's FD site, hi 73 es GL Glenn ON4WIX - Original Message - From: Stewart Baker [EMAIL PROTECTED] To: GW0ETF [EMAIL PROTECTED] elecraft@mailman.qth.net Sent: Friday, September 05, 2008 2:51 PM Subject: Re: [Elecraft] IARU Region 1 SSB Fieldday this weekend If the rain doesn't stop soon we will be signing G3MDG/MM ! 73 Stewart G3RXQ Chesham District ARS On Fri, 5 Sep 2008 04:49:35 -0700 (PDT), GW0ETF wrote: Toby Deinhardt wrote: Hi, this weekend is our SSB Fieldday: Saturday 13UTC to 13UTC Sunday. Please listen for /p stations from region 1 this weekend. The DL rules (in English): http://www.darc.de/referate/dx/xedcfr.htm vy 73 de toby GW4TTA/p will (weather permitting!) be qrv from the island of Anglesey, North Wales with up to 2 K3s at our disposal. It's forecast heavy rain so signals may be a little watery.. 73, Stewart GW0ETF ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- -- No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.169 / Virus Database: 270.6.16/1654 - Release Date: 5/09/2008 13:24 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- David G4DMP Leeds, England, UK -- No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.169 / Virus Database: 270.6.16/1654 - Release Date: 5/09/2008 13:24 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Harmonic Distortion
I find virtually the same results here using 50uV RF from an Elecraft signal source, and measuring using Wave Spectra. An offset of 43 to 45dB, and below LIN OUT = 5 the harmonics drop rapidly. 73 Stewart G3RXQ On Tue, 02 Sep 2008 12:28:02 -0400, Jack Smith wrote: Brendan: You might wish to look at the measurements I made, with LIN OUT settings from 2 to 100. There's an animated GIF that steps through the LIN OUT settings so you can see the effect. The data was taken at 600 Hz. http://www.cliftonlaboratories.com/elecraft_k3_receive_audio.htm about half way down the page Like you, I see a relatively constant 45 dB or so offset between the fundamental and 3rd harmonic for LIN OUT values of 10 and over. However, setting the LIN OUT at 2 results in quite a bit better odd order harmonic suppression, on the order of nearly 70 dB. By the time LIN OUT is set to 5, however, the odd order suppression is reduced to a bit more than 60 dB. At LIN OUT = 10, it's 45 dB or so where it stays at all values of LIN OUT tested between 10 and 100. (For some reason, the 2nd harmonic pops up at certain settings, but not others higher or lower, but that's not of immediate concern.) There's a related issue with the AGC. The audio output is proportional to RF signal level, as the AGC has a slope to it. Hence, even though the LIN OUT might be set to, say, 2, the actual audio level and hence the distortion, will vary as the RF signal level changes. The degree of audio level variation with RF input changes depends on how the user has set the K3's AGC slope and intercept parameters. I'll make the measurements on a couple of TTC-108 parts when they arrive as a matter of trying to understand where the harmonic distortion arises. To duplicate the K3's audio chain, I'll drive the TTC-108s from an op-amp so that it will be hit with a low Z source, instead of the standard audio generators available to me, with 50 or 600 ohm output Z. Jack Brendan Minish wrote: Jack I have seen postings on the main reflector recommending settings as low as 3 to avoid distortion products that are being attributed to transformer distortion. This did not really make sense to me, especially at such low levels where consumer sound cards tend to get non-linear and nasty. I took a look at the specifications for the TTC-108 audio transformer used in the line out of the K3 Nominally it's specified as having an operating level of -45dBm to +7dBm THD is specified at 0.5% @0dBm 300Hz to 3.5 Khz @ 0dBm this would make the transformer related harmonics worst case at -46dB relative to the fundamental I did some measurements with an s9 CW signal zero beat at various pitch settings I used an old copy of SMAART pro that I have from my Sound engineering days. the sound card is a delta44 Lin = 100 Pitch 300 pitch 550 pitch 800 DR3 47.3dB 51.4dB 54dB Lin = 50Pitch 300 Pitch 550 Pitch 800 DR3 43.1dB 47.6dB 50.6dB Lin = 10Pitch 300 Pitch 550 Pitch 800 DR3 35dB39.7dB 43.1dB Lin = 5 Pitch 300 Pitch 550 Pitch 800 DR3 31.9dB 37.7dB 42.7dB Lin = 3 Pitch 300 Pitch 550 Pitch 800 DR3 31dB40.3db 47.6dB DR3 is the Dynamic range between the fundamental and the 3rd harmonic (the most dominant harmonic by a wide margin) I did a quick look at 5th and 7th orders too, again the best performance here was found with LIN = 100 LIN = 100 is an output level of approximately 700mv for an S9 CW sig on my K3 The Harmonic distortion does not increase with higher line out levels, it actually improves. This does not appear to be a transformer saturation issue With lin = 100 users will see a ghost on the waterfall and may risk over-driving some consumer sound cards. lowering LIN may get rid of the visible ghost by reducing the 3rd Harmonic to below the waterfall threshold ( perhaps the sound card input noise floor ) but also reduces the overall usable dynamic range 73 Brendan EI6IZ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 - Temperature Specifications
I have had my K3 on receive most of the day, whilst doing other things in the shack. By chance I touched the top of the case and it felt quite hot, given that the shack temperature is 26 deg. According to the LCD readout both the FP and PA temps were at 34 deg. It got me wondering, what are the temperature specifications for the K3 ? I have looked through various paperwork on the Elecraft site, but can find no information on the subject. 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 - Temperature Specifications
Thanks Gary (and others), I think that since fitting the 2nd RX the unit gets quite a bit warmer. The supply volts are 13.7 and the current on receive is 1.07A, so that's about 14W, not excessive. If the unit is on receive and the fans are not running, the only place for the heat to escape from the front half of the K3 is via the speaker hole, and by conduction through the case. The slots at the back half of the top cover seem to let little heat out because of the height of the PA shield. Haven't got an 'official' reply yet. 73 Stewart G3RXQ On Sun, 31 Aug 2008 21:03:37 -0700 (PDT), W7TEA wrote: Stewart, I don't know the specifications. My shack is 23C and the K3 has been on receive all day. The FP is 31-32C and PA is 30C. My fans start when I'm barely into a QSO and when the PA reaches 37C. I calibrated the PA just yesterday. 73, GAry W7TEA I have had my K3 on receive most of the day, whilst doing other things in the shack. By chance I touched the top of the case and it felt quite hot, given that the shack temperature is 26 deg. According to the LCD readout both the FP and PA temps were at 34 deg. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 - Link VFO's - Lock Icon
I don't know which beta release it was implemented in, but I notice that when the VFO's are LINKED there is a Lock Icon against VFO B. I know that it is not possible to tune using VFO B when the VFO's are linked, but I find the use of the Lock icon when in LINKED mode confusing. It doesn't specifically tell me that whether the VFO's are linked or just that VFO B is locked. I would prefer another method of showing that the VFO's were linked. Maybe by making the left hand decimal point flash. This method is used with the right hand decimal point flashing to indicate the DIVERSITY mode. What do others think ? 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3- KRX3 and DVR Installation Sequence
My experience is that although it only takes a minute or so to remove the KRX3, it takes quite a lot of time to re-install. Most of that time being taken up in routing the coax cables. 73 Stewart G3RXQ On Thu, 28 Aug 2008 07:27:40 -0700 (PDT), Barry N1EU wrote: Terry Schieler wrote: Will there need to be a substantial amount of disassembly of the K3 to get the DVR installed? If this is the case, I will probably hold off on installing my KRX3 until the DVR unit arrives and do it all in one operation. Terry, the DVR installation is a moot point as far as whether you should delay KRX3 installation. Once installed, KRX3 removal is quite simple and can be accomplished in about one minute. You should go ahead and install your KRX3. 73, Barry N1EU ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3- KRX3 and DVR Installation Sequence
On Thu, 28 Aug 2008 11:08:35 -0400, Barry N1EU wrote: On Thu, Aug 28, 2008 at 10:58 AM, Stewart Baker [EMAIL PROTECTED] wrote: My experience is that although it only takes a minute or so to remove the KRX3, it takes quite a lot of time to re-install. Most of that time being taken up in routing the coax cables. Only disconnect the KRX3 ends of the 3 TMP cables. Just leave them in place and secure them out of the way with an alligator clip to the KPA3 shield. To reinstall, just plug in the 3 cables and drop the KRX3 in. It only takes a couple of minutes. That's a good technique, must remember it for the next time. The speed of KRX3 reinstall is a moot point relative to the DVR since as Lyle described, you don't need to remove the KRX3 to install the DVR. You just need to remove the front panel. My front panel is getting quite a bit easier to fit with each removal and reinstallation :-) 73 Stewart G3RXQ 73, Barry N1EU ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 - Keeping the dust out..
Any suggestions other than silicon sealant for keeping dust from finding it's way onto the back of the LCD cover ? I have to take the cover off about every couple of months to clean it where dust has fallen down the gap with the front panel metalwork. The shack is not very dusty (despite what the wife says)... And it's dust not dandruff ! 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 - Keeping the dust out..
That's a good idea. She can now put her very expensive Bernina sewing machine which gives out sprogs all over 80 40 to good use.. 73 Stewart G3RXQ On Thu, 28 Aug 2008 12:46:11 -0700 (PDT), Julian, G4ILO wrote: doberman wrote: How about the dust covers someone suggested a few or so posts ago?? Reviewed here: http://www.eham.net/reviews/detail/7387 Or ask your xyl to make a dust cover for your K3, like mine did. :) - Julian, G4ILO. K2 #392 K3 #222. http://www.g4ilo.com/ G4ILO's Shack http://www.ham-directory.com/ Ham Directoryhttp://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Beta Firmware, Revision 2.31
Yes, very good. We've had ESSB Diversity implemented. VFO IND next ? 73 Stewart G3RXQ On Thu, 28 Aug 2008 10:42:15 -0700, wayne burdick wrote: K3 beta-test firmware revision 2.31 is now available. This is an extensive update; details appear below. Please send any problem reports to [EMAIL PROTECTED] For instructions on how to load beta firmware, please see: http://www.elecraft.com/K3/k3_software.htm 73, Wayne N6KR * * * MCU 2.31 / DSP 1.89, 8-28-08 New Features and Enhancements: * CW SIDETONE INCREMENTS NOW 10 HZ (originally 50 Hz). * RIT CLR switch now works during transmit in all modes and at any time. * RIT CLR MENU ENTRY: You can use this menu entry to select UNDO ON or UNDO OFF. OFF is the default. When ON, tapping CLR will alternate between 0.00 and the present RIT/XIT offset, if any. * DIVERSITY RECEIVE MODE: If you have the sub receiver (KRX3 option) installed, you can take advantage of diversity receive by using two separate receiving antennas. This can improve signal copy during fading, and adds a spatial (L/R) effect to signals. DIVERSITY MODE further enhances this capability by slaving the sub receiver's mode, filter settings, and VFO to the main receiver. To enter diversity mode, hold SUB until you see DIVRSTY on VFO B (about 2 seconds). The kHz decimal point of the VFO A display will flash slowly as a reminder that diversity mode is in effect. Notes on Diversity Mode: 1. Entering diversity mode switches the sub receiver to its AUX antenna source. If you don't hear any right-channel audio, you probably don't have an antenna connected to the sub's AUX input. Refer to the owner's manual or KRX3 manual for information on sub receiver AUX antenna configuration. 2. If your main and sub receiver have 5-pole crystal filters with differing frequency offsets, you may hear a slow phase modulation in the received audio at some VFO frequencies. The only way to eliminate this effect is to use 5-pole filters with matched offsets (available on request; contact Elecraft) or use 8-pole filters, which have no offset. Miscellaneous changes: * DUAL PB CW MIN CONTEXT BANDWIDTH NOW 400 Hz. In high-QRM situations, a 400 Hz or 500 Hz crystal filter may be very useful as a limit to the context bandwidth. Note that the pedestal effect (-24 dB context filter) becomes more of a sloped response as the context bandwidth is reduced. * DATA TX ALC IMPROVEMENTS. PWR control is now more responsive during transmit in all DATA modes. * FM SQUELCH THRESHOLD: Closely matched between main and sub receivers. * NOISE BLANKER ON/OFF ON BAND CHANGE: The DSP noise blanker wasn't set up properly during band changes. It may have been left ON on the new band in some cases. * PA TEMP and FP TEMP are now normal VFO B alternate display modes, meaning that you don't have to set TECH MD to ON in the config menu. * DDS frequency shifting during T/R changed to eliminate a variation in CW keying duty cycle that was occurring only over specific, narrow frequency ranges on each band. This also eliminated a related CW keying artifact. For software developers: * RG$ command implemented (sub receiver RF gain). * FA, UP ,DN, RC, RU, and RD COMMANDS UPDATE VFO B IF VFOS ARE LINKED (except in SPLIT). These commands can also be used in transmit mode. --- http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Auto balanced tuner
I made a carbon copy of this ATU. It works pretty well, however at impedance extremes it was a bit lossy. 73 Stewart G3RXQ On Wed, 20 Aug 2008 09:12:01 -0700, Vic K2VCO wrote: David Andrews wrote: I'm using a h/b 1930's link (balanced) tuner. It's as efficient as I can get, and open wire feeders closely balanced. What I'd really like is the same automated, either using motorised variable caps or switched caps/inductance. Has anyone any links or have they managed it themselves? Here's a really nice one: http://www.hamware.de/hardware/tuner502/descr-at502-e.pdf Get ready to sell your car and mortgage your home, however. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 Headset Audio - Is this correct ?
Since fitting the 2nd RX I have been exploring the audio settings and find that:- To get 1st 2nd RX audio thru the speaker I have SPKRS=1. This is fine, however if I have SPKR+PH=YES, then I only get audio from the LH headphone. With SPKR+PH=NO, I get audio from both LH and RH headphones. Is this correct ? I am using a Heil PRO headset. 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 Headset Audio - Is this correct ?
Thanks to all who replied. Yes, I know that it works OK with SPKRS=2, however I would like to use SPKR=1 so that I can have both the main and sub RX audio coming from the internal LS. However, I would also like to use the headphones at the same time, even if it is a combined audio to both left and right phones. Maybe the routing of the headphone audio is such that it is not possible to do the same with both the LS and headphones selected without only 1 headphone channel being active. 73 Stewart G3RXQ On Sat, 16 Aug 2008 06:54:14 -0400, Ken K3IU wrote: Try it with CONFIG:SPKRS set to 2. Works here. 73, Ken K3IU Stewart Baker wrote: Since fitting the 2nd RX I have been exploring the audio settings and find that:- To get 1st 2nd RX audio thru the speaker I have SPKRS=1. This is fine, however if I have SPKR+PH=YES, then I only get audio from the LH headphone. With SPKR+PH=NO, I get audio from both LH and RH headphones. Is this correct ? I am using a Heil PRO headset. 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] annoying resonance with internal speaker in K3
The buzzing I noticed on my K3 is the top cover vibrating against the top of the PA shield. There should be a greater clearance between the two. I have been waiting until there is a reason to disassemble my K3, so I can take a file to the metalwork. That is what I would do if I were building another one from scratch. Also the ATU board makes intermittent contact with the cover. 73 Stewart G3RXQ On Sun, 10 Aug 2008 21:47:14 -0600, Fern Rivard wrote: I have a K3 serial #412 which has always had an annoying resonance from the internals of the radio cabinet somewheres when using the internal speaker. I thought that it may have been the top lid which did that so I tried to isolate the top lid by temporarily adding some electrical tape between the top and when it meets the the top of the radio. However, that did NOT accomplish anything for me. Has anyone found a permanent cure for that annoying resonance? This afternoon I took my K3 for a bit of Show and Tell to a get together picnic that our local ham club put on this afternoon. Not having a spare antenna conveniently laying around, I just took a small roll of telephone extension wire 4 conductor in it) so I soldered all four wire together with enough solder residue so that it would just fit inside the SO-239 ant#1 rear connector. I guestimate that I had an approximate lenght of 35 feet or so of wire that I strung between trees. I had the K3 on a padded surface on the hood of my vehicle to make it handy for the audience to see it. I tried the automatic antenna tuner on all bands from 80 to 10 meters with a resultant perfect match from 75 meters all the way to 10 meters with 1:0 to 1 match. Unfortunately band conditios were not very good today. 73 from Fern VE7GZ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: [K3] annoying resonance with internal speaker in K3
Oh Yes ! 73 Stewart G3RXQ On Mon, 11 Aug 2008 10:56:36 +0100, David Ferrington, M0XDF wrote: Strange, mine not only does not do that, but I can't make it do that even if I tap it - do you have the chassis stiffener in place correctly? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: [K3] annoying resonance with internal speaker in K3
So do I Fern. I tried the tape, which originally seem to stop the problem. I then took a side cover off, and looked at the various clearances. I came to the conclusion the main culprit was the top of the PA shield being close to the top cover, but not actually attached to it. My solution, until I get the file out was to split a piece of rubber sleeving lengthwise, and curl this over the top edge of the metal shield. This forces the top cover up slightly and also stops the metal surfaces from coming into contact on audio peaks. 73 Stewart G3RXQ On Mon, 11 Aug 2008 08:34:25 -0600, Fern Rivard wrote: Yes Stewart, I DO have the stiffener in place otherwise there would be some exposed holes on the top lid! I temporarily put some black electrical tap between the contact areas where the top lid meets the radio but that didn't stop any of it. The resonance appears to come from down below the pa unit. Fern - Original Message - From: Stewart Baker [EMAIL PROTECTED] To: David Ferrington, M0XDF [EMAIL PROTECTED] Cc: Fern Rivard [EMAIL PROTECTED] Elecraft List elecraft@mailman.qth.net Sent: Monday, August 11, 2008 4:14 AM Subject: Re: [K3] annoying resonance with internal speaker in K3 Oh Yes ! 73 Stewart G3RXQ On Mon, 11 Aug 2008 10:56:36 +0100, David Ferrington, M0XDF wrote: Strange, mine not only does not do that, but I can't make it do that even if I tap it - do you have the chassis stiffener in place correctly? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 :: Data A mode TX EQ function
For convenience, I have generated a number of macros under the HRD CAT command facility. I assigned them to buttons on the HRD front panel. I have macros for TX EQ RX EQ for CW SSB. For easy identification, part of the macro displays the name on the K3 LCD bottom line. E.g. TX SSB1 AI0;K31;MN009;SWT53;SWT27;UP;UP;SWT29;UP;SWT33;UP;MN255;K30; DBT;DBX;DB ;DBS;DBS;DBB;DB1; 73 Stewart G3RXQ On Mon, 11 Aug 2008 08:01:08 -0700 (PDT), GM0ELP wrote: You could use the following macro till this gets sorted in the firmware: AI0;K31;MN009;SWT53;MN255;K30; A similar macro could replace your TX SSB equaliser settings at the touch of a button. There are more details on a previous posting for RX Equaliser on this forum. Doug ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: AW: [Elecraft] Re: K3 Audio
Is that really so ? If that's the case, then the design is poor.. 73 Stewart G3RXQ On Wed, 6 Aug 2008 09:32:55 +0200, Koppendorfer Klaus wrote: did you use the line out ?? The Line Output transformers of the K3, saturate at normal program levels try Headphone out on Frontplate and you will see no Harmonic´s 73 OE6KYG KX1 244 K2 1331 K3 115 -Ursprüngliche Nachricht- Von: [EMAIL PROTECTED] [mailto:elecraft- [EMAIL PROTECTED] Im Auftrag von Ian Maude Gesendet: Mittwoch, 06. August 2008 09:27 An: elecraft Reflector Betreff: Re: [Elecraft] Re: K3 Audio Bob Cunnings wrote: If you listen to Sherwood's presentation, you'd hear him state that the distortion problem he discusses occurs only when driving a low impedance (speaker) load. If driving a high Z load like, say, powered speakers, or using headphones, there is no problem. There is still a bit of a problem on receive audio. This has been there for some time and exists in the form of harmonics. The 3rd harmonic is quite easy to see and repeatable. I used HRD to show this on the waterfall after a conversation with a friend. You can clearly see the harmonic at.. http://www.gb7mbc.net/docs/K3Audiotrace.doc 73 Ian So that might explain your observations. Bob NW8L On Tue, Aug 5, 2008 at 4:29 PM, Geoffrey Downs [EMAIL PROTECTED] wrote: Would be interesting to know the detail of what Rob Sherwood said, but I agree with you, Dave. The tx and rx audio on my K3 sounds cleaner, brighter and clearer to me than my now obsolescent FT1000MP Field even before applying any equalisation. I use either a headset or a couple of small external computer speakers. 73 to all Geoff G3UCK - Original Message - From: Dave G4AON [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Tuesday, August 05, 2008 9:55 PM Subject: [Elecraft] Re: K3 Audio Bottom line to me is the K3's audio is fine. And no, I'm not on commission from Elecraft! 73 Dave, G4AON K3/100 #80 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com -- Ian J Maude, G0VGS SysOp GB7MBC DX Cluster Member RSGB, GQRP K2 #4044 |K3 #455 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] u want nice audio?
Looks more like an Air Freshener ::-) 73 Stewart G3RXQ On Wed, 06 Aug 2008 16:17:33 +0100, Ian Maude wrote: Bert Craig wrote: How about Palstar's offering? http://www.palstar.com/sp30.php God that's ugly :) 73 Ian ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Canceled my K3, bummer.
With the current recession (sorry credit crunch), I am thinking about making my K3 available for hire for contests and DXpeditions :-) 73 Stewart G3RXQ On Thu, 31 Jul 2008 17:26:14 -0700 (PDT), W7TEA wrote: Maybe you could have put your order on hold to keep your spot in the queue and then reactivate when economic condx allow. Maybe too late now, but that was an option earlier this year. Gary W7TEA Gary D Krause wrote: I canceled my K3 order. With the price of food and fuel along with everything else, I figured it would be smart to hold off for now. The good news is that I still have my K2 which is a terrific rig and I'm guessing that everyone else gets bumped up another notch! I still plan to buy a K3, it's just not going to happen as soon as I wanted. Gary, N7HTS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Using Voice Files along with Mike Input on a K3
It would be nice to have a LINE OUT setting something like =TX/RX where both the received audio and the transmitted audio were available at a preset (independent of volume control) level. It would be very useful in contests to record both sides of a contact CW or SSB. 73 Stewart G3RXQ On Wed, 30 Jul 2008 11:07:35 -0400, hank k8dd wrote: Ed . If you look at http://www.writelog.com/support/wlso2r.pdf it shows how to set up the mike for SSB contesting. If you ignore the Left Rig and the W5XD Multi+ keyer and just look at the Right Rig and microphone setup you will see how to keep the audio from the other ops out of your mike. In N1MM configurer you can select the line to mute when playing wav files. This is also mostly the Mic input. Check http://pages.cthome.net/n1mm/html/English/BasicFunctions.htm#Rec ording_Wav_files for recording info. I have found that if the MON level is turned up so you can hear yourself, with MIC + Line in you will get feedback when you activate PTT. I'm assuming this will not happen if the mike is plugged into the sound card. Also, if you want to record both TX and RX audio in the contest you have to select =PHONES. This will send TX RX audio to the sound card at a level controlled by the AF Gain control (NOT Line Out level) and possibly overdrive your sound card. 73HankK8DD - Original Message - From: Ed Steeble [EMAIL PROTECTED] I tried to use a K3 in the IOTA contest on SSB but ran into a problem. I couldn't figure out how to satisfactory key the K3 with wave files from N1MM Logger and also use a Heil Headset. Reading the manual it appears that you can have audio input from ONLY the front panel, rear panel, OR line in. The wave files were coming via the line in and the mike via the Front panel. Did I over look something? A fellow team member and I considered paralleling the mike and sound card input but we didn't want a live mike while wave files were playing. The Elecraft web site says that their digital voice recorder (KDVR3) is not yet shipping. For now, does this mean that that I have to use my MFJ voice keyer (configured for a Kenwood radio) if I want audio files AND mike capabilities? When using a K3, how are others handling SSB contests? 73, Ed K3IXD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] [OT] Hilberling PT-8000 cancelled.
All fine in principle, but here in the UK, nobody is enforcing the EMC legislation. Maybe Ireland is more fortunate. 73 Stewart G3RXQ Member RSGB EMC Committee On Sat, 26 Jul 2008 01:45:54 +0100, Brendan Minish wrote: On Fri, 2008-07-25 at 13:29 -0700, Alan Bloom wrote: However, I believe Europe also has SUSCEPTABILITY requirements which the FCC does not. That is a good thing for radio amateurs, or anyone who operates a transmitter. In Europe we do have ingress limits for consumer equipment and indeed they are set high enough to be useful to protect the transmitting amateur from many of the issues surrounding badly engineered consumer devices. Our CE rules also set emissions limits for consumer devices but unlike FCC part b the liability for any remaining issues to radio users EVEN where a device is fully CE compliant remains with the manufacturer or importer, not with the consumer that owns the device. CE compliance does not assume compliance with the EMC directive (article 4a is the relevant section for us) the electromagnetic disturbance it generates does not exceed a level allowing radio and telecommunications equipment and other apparatus to operate as intended no minimum limit is set for this condition to presumed to be met. This is actually great deal of protection for amateurs since even a fully CE complaint device that is causing interference to a radio user's normal operation must be resolved by the manufacturer or importer, not the hapless consumer that bought the device without knowledge that it was going to cause an issue for the 'radio ham next door' the EMC directive is available to read here http://ec.europa.eu/enterprise/electr_equipment/emc/directiv/tex t.htm 73 EI6IZ (EMC representative for the IRTS) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] [OT] Hilberling PT-8000 cancelled.
Sorry Ian, not so. If you had read the EMC column in RadCom you will see that complaints have been lodged with Ofcom by the RSGB EMCC with regard to computer SM PSU's. These are manufactured in China, fully CE marked, and sold through at least 3 well known electronic/computer outlets. In all cases the PSU's have been CE tested with the required input suppression components fitted, however when they are supplied to the UK these components are omitted, and wire links fitted in their place. The conducted noise level from these PSU's exceeds the permitted levels by many times. This is a clear breach of EU EMC legislation, but so far no action has been taken. They have also turned up in quantity in France. I am sure that these outlets selling the PSU's demanded, and got the paperwork. Unfortunately it is worthless unless there is enforcement. To date, despite much communication there has been nothing from Ofcom to move the matter forward. Taking the PSU back to the shop is fine if you brought the unit. Not so easy if it is a neighbour who's computer SM PSU is wiping out the HF bands. Although, not an EMC matter fairly recently a young boy was electrocuted because a CE marked computer PSU was of such poor quality that a low voltage wire touched the mains input wiring. In this case Trading Standards are investigating (after the event)... I am sorry if is rather OT, however it should be of interest to those who believe that all is well on the EMC front... 73 Stewart G3RXQ Member RSGB EMC Committee On Sat, 26 Jul 2008 09:43:27 +0100, Ian White GM3SEK wrote: Stewart Baker wrote: All fine in principle, but here in the UK, nobody is enforcing the EMC legislation. It's true that nobody is enforcing it effectively against grey imports. On the other hand, those are only a small minority of sales. The vast majority of sales come from responsible manufacturers, through responsible distributors. In Europe, the distributors provide the most effective enforcement of manufacturing standards for consumer goods. This is because consumers in Europe have strong legal rights which are directly against the distributor. If there is a manufacturing defect, then in most cases the consumer has a legal right to reject the goods and demand a refund from the distributor. (Some distributors still try to fool customers into going back to the manufacturer, but most consumers are becoming much more savvy about the law. Refusal to give a refund *will* bring down heavy enforcement from the consumer protection agencies.) The faulty goods then become the distributor's liability. Even if the issue is eventually resolved with the manufacturer, the time and trouble eats up everybody's profit margin. To avoid such situations as far as possible, distributors routinely demand formal declarations of quality, including compliance with all applicable standards. That still isn't to say that every declaration of compliance is truthful, or that the technical standards themselves are totally effective - far from it! - but even the present situation is a whole lot better than nothing. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 died while attempting firmware download
I have had this on a number of occasions :- *** DON'T PANIC *** The Bad News is that something got screwed up on the recent firmware download. The Good News is that no harm was done, and your K3 is sitting there ready to try again. My advice would be to restart your computer, check your COM ports and wiring, particularly if you are using a USB to serial converter. Restart the configuration utility, and check that you have the correct port selected. Just tick the MCU, and the always load data tables boxes, and try to download again. With a following wind you should be back in business. 73 Stewart G3RXQ On Fri, 25 Jul 2008 12:58:27 -0400, Gary Nichols wrote: Help please.I killed w8uvz's K3 while trying to download current firmware. The computer attempted to download three times and then became non-responsive. I could not power down the K3 so I turned off the power supply. When re-applying power the TX light is blinking and only MCU LD appears on the screen without backlighting. How do I get back to a working radio from here? Thanks, de gary, kd9sv ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] KRX3
My KRX3 came today. Installed in about 2.5 hours, with no problems, however the coax cable routing was fun... Very pleased with this addition to my K3. My only comment so far is - why does switching the SUB RX ON/OFF/ON cancel SPLIT ? I would prefer that the operator has full control over the SPLIT function. Just toggling the SUB button could get you a response of UP UP !! :-( 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] KRX3
Wow, that was quick ! I only went downstairs to make a cup of tea I will look out for MCU 2.17. 73 Stewart G3RXQ On Tue, 22 Jul 2008 09:43:13 -0700, Ed Muns wrote: My only comment so far is - why does switching the SUB RX ON/OFF/ON cancel SPLIT ? This is fixed in MCU 2.17, so QRX for that or a later firmware version on the Elecraft FTP site. 73, Ed - W0YK ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] K3 RIT Coarse Tune Lock
To prevent inadvertent QSY's, I would like to have the RIT coarse tune (CONFIG:VFO OFS) be locked when the LOCK button is pressed. 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 CW in SSB mode option to disable on 60m feature request
I agree Julian, Let's use the Little Gray Cells between our ears. If not, there's always EchoLink, Skype etc. 73 Stewart G3RXQ On Mon, 21 Jul 2008 00:49:10 -0700 (PDT), Julian, G4ILO wrote: Brett Howard wrote: Personally I'd rather have the ability to do CW in SSB anywhere as it turns out to be a good safety feature if ever need be. Granted cross mode is more of a safety option when we're talking about a KX1 but you never know. Personally I feel that not disallowing TX outside of the bands (or making things configurable so that one can transmit outside of band (with just a warning if your OOB) would be a good enhancement. I agree. I don't see any reason to disable anything. If you don't want to use something, or aren't allowed to use something, then just don't use it. We're licensed amateurs, we know what the rules are, we don't need our radios playing nanny to make sure we don't do anything we're not supposed to. - Julian, G4ILO http://www.g4ilo.com/ G4ILO's Shack http://www.ham-directory.com/ Ham Directory ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] 6m preamp description??
I brought a 6m preamp kit from Down East Microwave. It cost only slightly more than if I had sourced the components in the UK. The end result means that now I can hear the K3 noise level increase when I add an antenna. 73 Stewart G3RXQ On Fri, 18 Jul 2008 10:33:21 -0700, Jim Brown wrote: On Fri, 18 Jul 2008 09:32:42 -0700, Bob Tellefsen wrote: I've heard that there is a prototype 6m external preamp being tested. I bought an ARR preamp several years ago when I was living in Chicago. I patched it into the external antenna insert loop and it works well. 73, Jim K9YC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] 6m preamp description??
I'm ready for another holiday in the US next year, before the UK economy gets much weaker :-( 73 Stewart G3RXQ On Sat, 19 Jul 2008 08:45:57 -0700, Jim Brown wrote: On Sat, 19 Jul 2008 09:46:56 +0100, Stewart Baker wrote: I brought a 6m preamp kit from Down East Microwave. They are well respected in the US. It cost only slightly more than if I had sourced the components in the UK. Ah, the weak dollar! 73, Jim K9YC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: RF Coupleing
David, A very good point. Although the space is rather restricted for RG58/U it should be possible to fit some of the smaller diameter cable such as that used to connect between VHF/UHF PCB's. I have some silver braided coax that would be suitable. It would have little adverse effect over such a small length, but might provide additional isolation. Food for thought... 73 Stewart G3RXQ On Wed, 16 Jul 2008 12:14:03 -0400, David Robertson wrote: Stewart, Your posting is good information however one of the factors of isolation between ANT 1 and 2 can be how the pigtail leads from the 2 SO239 connectors and the antenna coupler board are dressed. It would seem easy to have these nonshielded wires crossing or near each other. The space seems too tight to use rg58/U cable. this could mean that depending how those wires were dressed the coupling would be different between all K3's. 73 Dave KD1NA From: Stewart Baker [EMAIL PROTECTED] Subject: Re: [Elecraft] Re: KAT3 ATU and SPE Expert 1K-FA Amplifier To: Dave G4AON [EMAIL PROTECTED], elecraft@mailman.qth.net Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; charset=ISO-8859-1 I made some measurements of the isolation between ANT 1 ANT 2 on my K3. There is little difference between ATU BYPASS. Unable to do 50MHz. 1.9MHz 58.1dB 3.7MHz 51.9dB 5.1MHz 49.2dB 7.0MHz 47.1dB 10MHz 44.7dB 14MHz 42.5dB 18MHz 40.8dB 21MHz 39.2dB 24MHz 37.1dB 28MHz 35.7dB So on 60m for 100W from ANT 1 there will be 1mW from ANT 2. 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Help - K3 Hang up MCU LD
Shouldn't mess with things !! In preparation for my KRX3 which is on the way to me, I thought that I would be clever and load the latest Beta firmware. The MCU LD crashed, and now I cannot get my K3 to INIT using the POWER switch and NORM controls. I sits there with MCU LD message on the screen. HELP PLEASE !!. 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: KAT3 ATU and SPE Expert 1K-FA Amplifier
I made some measurements of the isolation between ANT 1 ANT 2 on my K3. There is little difference between ATU BYPASS. Unable to do 50MHz. 1.9MHz 58.1dB 3.7MHz 51.9dB 5.1MHz 49.2dB 7.0MHz 47.1dB 10MHz 44.7dB 14MHz 42.5dB 18MHz 40.8dB 21MHz 39.2dB 24MHz 37.1dB 28MHz 35.7dB So on 60m for 100W from ANT 1 there will be 1mW from ANT 2. 73 Stewart G3RXQ On Tue, 15 Jul 2008 17:45:19 +0100, Dave G4AON wrote: Chris Is this simply an issue of RF being picked up by the antenna connected to the output of the linear, which it would see as reverse RF whenever you transmit directly from your K3 on another antenna? Also you can measure the RF from ANT2 when transmitting on ANT1 fairly easily... On my K3 with 100 Watts out of ANT1 I cannot measure anything from ANT2, with or without the ATU in use. I tested right up to 50 MHz - the lower limit on my power meter is 50 mW. 73 Dave, G4AON K3/100 #80 Acom 1000 -- My K3 has the KAT3 ATU fitted and I therefore have the options of selecting ANT 1 and ANT 2. I use the K3 with the SPE Expert 1K-FA amplifier. After looking at the diagram showing the switching of the KAT3 in the K3 Owner's manual, am I right in thinking that when transmitting (I am a CW operator), there should not be any RF on the antenna not selected? I use ANT 1 for all my HF antennas, including 6m, and ANT 2 for a resonant inverted vee for 60m that I put up yesterday. The reason I ask the question above is that when I select ANT 2 (for 60m) and transmit, the 1K-FA immediately goes into STANDBY mode because of a high SWR. I am wondering if my KAT3 ATU is working properly? With the KAT3 in BYPASS mode (which is how I have been using it for all my HF antennas), the K3 SWR meter gives an SWR of 1:1 on 60m, which it should do as the antenna is resonant. When I switch the ATU to the AUTO position on 60m with the same antenna and then tap the ATU TUNE button, the K3 makes a similar noise to the K2 ATU I have, but does not display any readings. When I then transmit, the SWR meter shows maximum SWR and about 40 watts output with the K3 power contrtol set to 100 watts. I have tested the KAT3 relays using the L1-L8 and C1-C8 and Ct settings in the KAT3 CONFIG menu and they appear to be working ok. This is the first time I have needed to use the KAT3 ATU or the ANT 1/ANT 2 facility since I got the K3. I would appreciate any advice or suggestions, please. Thanks and 73 de Chris, G4BUE ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] Switching supplies and the K3
Same here. I have two of these supplies, and have yet to hear a peep of RF noise from them. 73 Stewart G3RXQ On Mon, 7 Jul 2008 21:50:08 -0400, Bruce McLaughlin wrote: I am having very good performance from the SEC 1223 which is the same supply I use with the K2/100. If it does generate any noise I have yet to hear it. Bruce-W8FU -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Thomas Kuehl Sent: Monday, July 07, 2008 5:24 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Switching supplies and the K3 Hi, I am back on the Elecraft list after being gone for quite a while. I have a K3/100 coming in the next month or 2, and now I am thinking about how it is best to power it. The K3 has a nice small footprint and that will be much welcomed in my small operating area. And, I don't want to dwarf the available space with a big linear power supply. Therefore, I am considering a switching power supply with its small size as well. Switching supplies have come a long way relative to the RF hash generation issue and I am considering going that route. I sure don't want to degrade the K3'3 outstanding performance with a noisy supply, so I am still cautious. The eHam reviews for switching supplies provides a lot of different opinions for the various products. One in particular, the Jetstream JTPS28, seems to get high marks from its users. Is anyone on the list using this particular supply to power the K3? If so, what are your impressions of its performance? Or should I skip the switching power supply idea altogether? Thanks, Thomas - AC7A ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com Internal Virus Database is out of date. Checked by AVG. Version: 8.0.101 / Virus Database: 270.4.3/1529 - Release Date: 7/1/2008 7:23 PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Switching Supplies
I believe that all new SEC1223's have the mods fitted. 73 Stewart G3RXQ On Tue, 08 Jul 2008 14:40:27 +0200, Jan Erik Holm wrote: Mike Penkas wrote: I have 2 SEC1223's and no hash. I also have an Astron RS35 and RS50 linear supplies. Sometimes the magnetic hum from them drives me crazy. The little cork pads Astron puts in them to alleviate this does not help much. I keep them under the closed console on the floor. Mike WA8EBM Sorry to disagree but the SEC1223 is far from quiet. However it can be made much better by modifications. The DC side needs much better filtering, also some work can be done on the AC side. 73 Jim SM2EKM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] [K3] First-time VOX test: It works!
Yup, it's pretty good.. 73 Stewart G3RXQ On Mon, 7 Jul 2008 09:59:51 -0600, Bill W5WVO wrote: To those of you SSB ops who won't use VOX because every implementation of it you've ever used basically sucked -- Try the K3! I just set it up using my Heil Pro-Set for the first time, and it works just as you think it should. Very smooth, no dropped syllables, no falsing -- amazing. It feels effortless, like the K3's QSK on CW. This is by far the best VOX I have ever tried. Bill W5WVO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] [K3] First-time VOX test: It works!
Is that do do or can do ? 73 Stewart G3RXQ On Mon, 07 Jul 2008 10:25:32 -0700, Eric Swartz - WA6HHQ, Elecraft wrote: DSP based VOX is very cool. :-) We can do some interesting things to avoid dropped first syllables. Eric WA6HHQ Stewart Baker wrote: Yup, it's pretty good.. 73 Stewart G3RXQ On Mon, 7 Jul 2008 09:59:51 -0600, Bill W5WVO wrote: To those of you SSB ops who won't use VOX because every implementation of it you've ever used basically sucked -- Try the K3! I just set it up using my Heil Pro-Set forthe first time, and it works just as you think it should. Very smooth, no dropped syllables, no falsing -- amazing. It feels effortless, like the K3's QSK on CW. This is by far the best VOX I have ever tried. Bill W5WVO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] [K3] First-time VOX test: It works!
A little bit of DSP delay works wonders :-) 73 Stewart G3RXQ On Mon, 07 Jul 2008 11:03:49 -0700, Eric Swartz - WA6HHQ, Elecraft wrote: 'Do' as in 'already do'.. ;-) Our current DSL firmware is designed to provide an extremely fast VOX that does not drop much, if any, of the first syllable. 73, Eric Stewart Baker wrote: Is that do do or can do ? 73 Stewart G3RXQ On Mon, 07 Jul 2008 10:25:32 -0700, Eric Swartz - WA6HHQ, Elecraft wrote: DSP based VOX is very cool. :-) We can do some interesting things to avoid dropped first syllables. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] KRX3 Install...choices....
Thanks Bill, That was a question I was going to ask :-) 73 Stewart G3RXQ On Sun, 06 Jul 2008 09:51:23 -0500, ny9h wrote: now that I received my katiegram for the second receiverI have read the instructions. Looks like I need to make a decision whether to hook the 2nd rcvr aux in to the unused ( non- transmitting) KAT3 ANT port... or the ext BNC.. Since I can't cogitate the correct choice for my mess o wires... I will read the instruction a few more times, so my first guess might be correct. I wonder if there is any harm to bringing an extension from the bnc up to near the KAT3 jack... then when I pick the wrong implementation, I only have to pop the lid and move the plug. decisions decisions. ain't life swell.. with such problems I will read the instruction a few more times, so my first guess might be correct.nc on the back... Also , I do want to sneak out the 2nd rcvrs if out to a bnc on the backi. bill #44 Who just did a 'K3 show tell for the Washington, PA club meeting last Thursday night. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3: 6m CW Rev
Pleased it wasn't me losing it. Whilst in the memory area, I would like to have the ATU/Bypass status stored Band by Band. I have some bands where I use the K3 barefoot, and others where it goes either to an amplifier or to an external balanced ATU. Sometimes when changing bands I forget to switch the K3 ATU to the desired position causing strange effects. 73 Stewart G3RXQ On Fri, 04 Jul 2008 17:16:18 -0700, Eric Swartz WA6HHQ - Elecraft wrote: Wayne has fixed this in 2.14 beta. It will be up on the web site some time tomorrow after we do more testing on it. 73, Eric WA6HHQ _..._ [EMAIL PROTECTED] wrote: Stewart, I have reproduced the problem on my K3, and I haven't noticed it before. I'm running f/w 2.13 and I wonder if that has introduced the problem? Regards Paul M0CVX ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] 6m CW REV
On 6m if I select the mode as CW, then save and recall from a memory I get CW REV. Is this correct ? 73 Stewart G3RXQ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] KRX3 is shipping ! ! !
My advisory came today - shipping in 2 weeks. Should be up and running (not sure about the op! ), in plenty of time for CQWW. 73 Stewart G3RXQ K3 #307 On Wed, 2 Jul 2008 21:34:05 -0500, Nelson Moyer wrote: Thanks, and please keep the KRX3 advisories coming so I can predict when my September 2007 order is likely to ship. Nelson, KU0A -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Van W1WCG Sent: Wednesday, July 02, 2008 3:21 PM To: elecraft@mailman.qth.net Subject: [Elecraft] KRX3 is shipping ! ! ! Greetings, all :-- Got the long-awaited Katiegram for the KRX3 ordered 4/27/07, due to be shipped within 2 weeks, etc. Yaay 73, Van W1WCG ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com No virus found in this incoming message. Checked by AVG. Version: 8.0.134 / Virus Database: 270.4.4/1531 - Release Date: 7/2/2008 7:02 PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 6-meter Performance Question
I have just finished putting together, and testing a 6m preamp kit from Down East Microwave. As I use the RX Ant input on the lower bands, and not wanting to put in a relay, I have made up a Diplexer to separate out the 2 signal paths. Although the arrangement is a bit of a lash up it has proved the concept, and it's worth during a short 6m opening the other evening. Without the preamp I noticed no discernible different in the K3 noise level when connecting the antenna. With the preamp I get about an S2-3 indication. More importantly signals which were there but not readable, with the preamp they gave 100% copy. I think that my present preamp gain at around 22dB is a little excessive, so I will drop it back to about 15dB or so. Before I get swamped with requests etc, I should stress that my arrangement is not really reproducible, and you should wait until Elecraft releases their preamp solution. Y.M.M.V 73 Stewart G3RXQ On Thu, 3 Jul 2008 08:50:03 +0100, Ian White GM3SEK wrote: On Tuesday, Dick K5AND wrote: Ciao, from CY0X, Sable Island. [...] Since it is so easy to switch out the outboard preamp, we have frequently done this on some of the weak sigs just to see if we could still hear them. In many cases we could hear them Q5 with just the internal preamp. Ian, GM3SEK, et al, have pointed out that the stock radio NF is somewhere in the 8-10db range, which is not stellar as six meter radio specs go. Nonetheless, you'd be surprised at how many weak sigs we can still hear with only the internal preamp engaged. That's not surprising at all, as the K3 is only slightly lacking in sensitivity on 6m. But contrary to other reports from users in very quiet sites, my stock K3 can NOT hear background noise at 50MHz. Before making that statement, I took a couple of days to confirm that nothing else is wrong with the system. Receiver sensitivity meets Elecraft's 'typical' specification with a few dB to spare. Feeder loss was re-measured. And above all, I re-confirmed that my old IC-746 CAN hear background noise from the same antenna/feedline with a comfortable 3-5dB margin. A good operator like Dick can often make up for a few dB lacking in signal/noise ratio... but only at the expense of greater operator fatigue, and with the knowledge that some marginal QSOs *will* be lost, when a more sensitive receiver could have pulled them through. That is precisely why the receiver at CY0X has a prototype Elecraft preamp. One small correction: Elecraft's specification for a typical MDS (noise floor) of -136dBm in a noise bandwidth of 500Hz corresponds to a noise figure of about 13dB (significantly more than 8-10dB). Cutting through the technicalities, at a genuinely quiet 6m site that deficit *is* noticeable - a gap in the K3's otherwise all-round excellence. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] k3 split/ delta F ?
As far as I can see it is not possible at present. It is fairly high on my should be quick to implement wish list :-) 73 Stewart G3RXQ On Thu, 3 Jul 2008 04:22:59 -0700 (PDT), K3KO wrote: Anybody figure out if it is possible to display a delta F value instead of the actual VFO B frequency when in split? I've found that delta F is quite useful. The actual frequency, in practice, is irrelevant in most split cases. Made a couple split contacts now on CW. I like the fact that bset stays on so one can tune without having to hold it down continuously -- like some Kenwoods and ICOM's require. 73 de Brian/K3KO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] k3 split/ delta F ?
Ah Yes.. So it's nearly there. Just a bit more code to allow the delta F to be displayed for VFO B when Split is selected :-) 73 Stewart G3RXQ On Thu, 03 Jul 2008 09:39:12 -0700, Brett Howard wrote: You can display the RIT offset using the disp menu feature while tech md is on. Then you can see the delta F in place of the VFO B. The only downside is that you have to use the small knob to set y our delta f. On Thu, 2008-07-03 at 12:41 +0100, Stewart Baker wrote: As far as I can see it is not possible at present. It is fairly high on my should be quick to implement wish list :-) 73 Stewart G3RXQ On Thu, 3 Jul 2008 04:22:59 -0700 (PDT), K3KO wrote: Anybody figure out if it is possible to display a delta F value instead of the actual VFO B frequency when in split? I've found that delta F is quite useful. The actual frequency, in practice, is irrelevant in most split cases. Made a couple split contacts now on CW. I like the fact that bset stays on so one can tune without having to hold it down continuously -- like some Kenwoods and ICOM's require. 73 de Brian/K3KO ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 6-meter Performance Question
I would hang on to your XV-50 until you have checked that you find your K3 sensitive enough on 6m. I made the mistake of selling mine off before my K3 arrived, and I now regret it. 73 Stewart G3RXQ On Mon, 23 Jun 2008 13:19:51 -0500, Terry Schieler wrote: Fellow Elecraftorians: Some weeks back I recall a post here that the K3 6-meter performance did not seem to be up to par with its HF band performance as well as that of some of the other HF thru 6 rigs on the market, and there was some related discussion regarding a future accessory receive pre-amp for six. If I recall correctly, Wayne or Eric popped in to state the reason for the difference in performance, so it was, apparently, a documented situation. I have searched for the specific posts with no avail. But it leads me to ask whether I should hang on to my XV-50 transverter (which I had planned to sell) or use it with my K3 for its improved performance. Has anyone done this? I'd be interested in your comments. 73, Terry, WØFM K2 3716 K3 474 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] RSGB RadCom K3 review posted on RSGB Members web page
Overall I am very pleased with the review that Peter produced. Having chided him somewhat over the lack of a K2 review, I and others pushed him quite hard towards producing one for the K3. Given that the K3 is quite a different beast to the Far East Black Boxes he normally reviews, the end result IMHO is quite good. I don't know where, given the continual changes in the K3 development/manufacturing timeline would be a better place to conduct a review. I don't think the RadCom (RSGB) has had any interest either way in the K3 review, other than to provide an interesting read for the membership. As has been said before the RSGB does not purchase radios anonymously, the reviewer is normally loaned them by a dealer. The K3 review is very different in that this time the unit came from a user. Probably this approach is better at showing the rig, warts and all. 73 Stewart G3RXQ On Thu, 19 Jun 2008 05:49:29 -0700, David Yarnes wrote: Ian and All, While I agree with much of what you say, and I sympathize with the various issues, I can't quite agree that it necessarily is a good reason for everything. First of all, U.K. stations had the same access to K3's as U.S. stations did. Indeed, many U.K. bound units were included in the early shipments. But Elecraft's production delays does make it extremely complex to get a unit on any kind of a predictable timeline. If Radcom intended to review the K3 (and I would assume they should have been interested from day 1), they should have probably been quicker off the mark to get a unit in the Que, unless they were willing to delay review until they had proper time to do it right. I'm not saying Peter did it wrong--indeed his review may be quite accurate based on the radio he had--but saying he didn't have enough time suggests a hurried review. It seems to me that any committment to make such a review should be predicated on having sufficient time to do it properly. If Radcom wants it done earlier, they should insure access to a unit on a timely basis. The timing should not be the sole responsibility of the author. I also don't understand why any review (QST, Radcom, or otherwise) would be done without allowing sufficient time for communication with the manufacturer in case problems arise. Now, if the manufacturer doesn't cooperate, so be it. But I assume Elecraft, or any manufacturer, would want to be consulted about any claimed specifications not achieved. The need to work with the manufuacturer should be disclosed, as it says something about the status of production units, but the long term benefit of the review really depends on disclosing whether or not claimed specifications are achievable, and what it took to get there. After all, the problem could possibly be on either end. In short, I think any review that is rushed due to time constraints is of limited value. I'm not being naive' about deadlines, but deadlines must be imposed reasonably. I also think that a review should be something that is updatable. If issues occur, which are subsequently resolved, I think it's good practice to disclose them on a timely basis in a subsequent issue, including how it was achieved. Buyers rely heavily on such reviews, and I would think it is in everyone's interest to do them as completely as possible. And they shouldn't pull any punches either. I hate it when reviewers seem to gloss around certain issues. If it doesn't perform as advertised, say so!!! Dave W7AQK - Original Message - From: Ian White GM3SEK [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Thursday, June 19, 2008 12:21 AM Subject: Re: [Elecraft] RSGB RadCom K3 review posted on RSGB Members web page Like the ARRL review, this one was very much a first shot - and as we all well know, the K3 is a moving target. A few words about Radcom reviews may help put this into perspective. Availability of new models is typically several months behind the USA, and quite frequently the QST review is already in print before a reviewer in Europe can even lay hands on the hardware. This puts reviewers under intense time pressure. On receiving the equipment, the reviewer has a very short time to make some basic functional checks, just to confirm that the equipment is fit to be reviewed. More than once, I have rejected equipment at this point, and I'm sure Peter Hart has too. But once a reviewer commits himself to the magazine's production schedule, the process cannot be stopped. If subtle issues emerge from the detailed measurements, the reviewer will report whatever he sees. 73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.co.uk/g3sek ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help:
