[Elecraft] K3 and XV144 strange behaviour
I noticed a strange behaviour during the last IARU VHF Contest last weekend. With our team we managed to have a first field test of the rig coming for our experience with the K2/xv144 MHz combination the expectations were high. The setup was composed by the K3 and a XV144 transverter, plus a Power amplifier, a preamplifier at the antenna (with some 30 mt of 1/2 cellflex line) and two stacked 19 elements Log Loop Yagis. The switching sequence was controled by an external sequencer drived by a foot pedal. On the receiving side the combo was wonderful, the dynamic range allowed us to manage very well in the pretty crowded 2 mt band. But we had some troubles mainly on TX. Let say that our P.A. needs to be drived with circa 7/10 Watts at maximum (depending on the mode, SSB or CW). It's made from 2 x 4CX250B in push-pull configuration. So I tuned the transverter to go from a range of 1 W (with -10 dBm drive from the KXV3 module) to a mazimum of 10 W (with 0 dBm of drive). Things have worked pretty smoothly most of the time, but on a few occasions, we noticed a sudden loss of output power from the transverter (and from the P.A. of course). Turning the K3 off and on again the transverter didn't power up. The XV144 label on the front panel flashed for a brief moment and then stayed off. Changing band to HF and back again on 144 MHz (TRV1) and the XV144 module powered up again. Not always on the first try. Once powered up most of the times the output power was correct, but occasionally we had to do the procedure three or four times before coming back to normal functioning. Any clues of the reasons of this behaviour??? 73 de Giulio IW3HVB ___ 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 - IF out - again
Jim The level is very low, you are unlikely to see it on a scope, it can be seen on a spectrum analyser. 73 Dave, G4AON K3/100 #80 --- What is the output level of the IF out on the transverter KXV3 option? Do I have to turn on something to get it to activate? I am trying to connect a K3 Softrock V6.2 to use as a panadapter and cannot see any output on my scope (techtronics 475) from the IF output connector on the K3. Thanks es 73, de Jim KG0KP ___ 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 and XV144 strange behaviour
Before you ask... Firmware Revisions: MCU 2.34; DSP 1.89. 73 de Giulio IW3HVB. ___ 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 Digital audio out ?
Simon (HB9DRV) wrote: For audio there's SKYPE and IP-Sound. Take a look at http://forums.ham-radio.ch/forumdisplay.php?f=46 for a lot of remote radio discussions. SKYPE uses a proprietary voice only codec. Being proprietary means that its exact limitations will be unknown, but it is unlikely to perform well for data modes when operating close to the noise floor and it may well not work well for very noisy speech. -- David Woolley The Elecraft list is a forum for the discussion of topics related to Elecraft products and more general topics related ham radio List Guidelines http://www.elecraft.com/elecraft_list_guidelines.htm ___ 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 Digital audio out ?
For noisy speech it's not at all bad. For data modes - write your own seems to be the best option, this is what I plan to do for DM780 sometime. Sending data around at 8kHz with (estimated) 25% overhead is not a big problem, it's a trivial programming task, just takes some time to design and the implement it properly. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: David Woolley (E.L) [EMAIL PROTECTED] SKYPE uses a proprietary voice only codec. Being proprietary means that its exact limitations will be unknown, but it is unlikely to perform well for data modes when operating close to the noise floor and it may well not work well for very noisy speech. ___ 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 and XV144 strange behaviour
On receive we had persistent problems with people using lesser receivers and similar transmit power not being able to copy us because of QRM. DLs especially. We heard many very strong signals but none excessively wide. We also had system problems though not the same, or at least the same but partly fixed. In our case the 9-way D connector was at fault, unless fully screwed in it was found to not be making a good contact. Fully screwing it in fixed that of course, nothing to do with the K3. Our main K3 related problem was the inconsistent power output. We were also using a pair of 4CX250Bs, parallel rather than push pull. To avoid over drive splatter, the amplifier trips out if any significant grid current occurs. The power spikes I have noted before made tuning up the drive with the PA on impossible. The correct drive was set, in incremental steps with the spike dealt with by keying with the PA off for the first transmission, then enabling the PA and seeing if the drive was sufficient. Once set the power would not stay fixed, it would sometimes drop by maybe 2-3 dB. Just adjusting the power one step up or down brought it back but with the usual initial spike that would on occasion trip the amplifier protection. After a couple of overs the power would drop back again. While setting up we also did some transmit cleanliness checks with local stations. The K3 + XV144 at about 7W output driving the pair of 4CX250Bs was reported to be exceptionally clean with very good audio. Considering this, the K3 plus XV144 while probably the best combination I have ever come across on receive is not ready for use on transmit just yet because of the ALC issue if you use a sensitive amplifier. One other minor point, with large chunky VHF coaxial relays, the 20mS TX delay is not quite long enough, but still much better than those rigs with no TX delay at all! You probably still need a sequencer. Mike Giulio Pico wrote: Before you ask... Firmware Revisions: MCU 2.34; DSP 1.89. 73 de Giulio IW3HVB. ___ 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 -- View this message in context: http://n2.nabble.com/K3-and-XV144-strange-behaviour-tp1079275p1079315.html Sent from the Elecraft mailing list archive at Nabble.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] K2 ALC problem
Gary D Krause wrote: I've noticed that my power output on 40 meters LSB is a lot higher than expected. I get four to five bars or more on the peaks in the ALC mode. I even got a high current reading last night and I then turned The number of bars in ALC display mode does not indicate the output power; it indicates the transmit chain gain (more accurately the excess gain over that needed to achieve the demanded power). The K2 does have more or less maximum gain on 40m. I suspect that the gain drops with increasing frequency because the transistors' gain reduces with frequency, and it drops with decreasing frequency because the coupling transformers are less effective. The ALC is greatest on 40m to stop the output power being greater. the power back from 12 watts to 10. I get 4 to five bars even at five watts. It didn't make much difference and I've found that I need to hold the mic further away. I switched to USB on 40 meters and it looks fine. It looks good on the higher USB frequencies also. I've noticed That's weird. Any difference between USB and LSB should switch between USB and LSB on the higher frequency bands. that it is around 2 to three bars on 80 meters LSB which is normal according to the manual. I'm wondering if it could be a carrier balance adjustment? Any ideas A severe carrier balance problem would result in their being ALC bars lit when there was no audio. As the carrier is also suppressed by the filter, I'm not sure that you would get enough leakage to trigger this, though. If the sideband switched at higher frequencies, I would suggest the problem was that your filter 1 wasn't correctly aligned for one of the sidebands, but if it is always the one sideband that needs more ALC, I have difficulty in imagining a mechanism that would cause that. would be greatly appreciated. Everything else appears normal. I've checked all solder connections on the SSB board several times and re-flowed the connections I considered suspect. -- David Woolley The Elecraft list is a forum for the discussion of topics related to Elecraft products and more general topics related ham radio List Guidelines http://www.elecraft.com/elecraft_list_guidelines.htm ___ 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-here have all the K2s gone ?
Hello Sure, mine has gone west...! # 0937 refused to transmit while I was exchanging reports for the European Fielday. Receiving : OK, transmitting : nil ! I haven't opened the top cover yet, and if I can't find the bug, you'll probably hear of me. Otherwise, very enjoyable rig I use as much as I can. Best 73 to all Jacques F9OJ ___ 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 - 5 Mhz Band
I find that I cannot access three of the UK 5MHz channels, FA, FB and FC being 5,258.5, 5,278.5 and 5,288.5 KHz respectively. Presumably they fall outside the programmed 5MHz Band edges. Does anyone know if there is a fix for this ? Andrew, m0gjh ___ 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: Where have all the K2s Gone?
As I might have mentioned a few times... I use my K2 as an outboard 2nd receiver for my K3, it works very well and the most recent addition is a small project box with a pair of phono sockets to both mute the K2 and key my linear (Acom 1000, 12 Volt keying, just a few milliamps needed). The set-up comprises: K3 with KXV3, route the RX RF OUT to an antenna splitter, one side of the splitter goes to RX RF IN, the other to the K2's RX only antenna input (needs the 160m option). I mute the K2 by keying it on TX from the KEY OUT on the K3, put it into TEST mode on CW, turn the power to zero and set the sidetone to zero. TX delay is best set a bit longer than normal - 500 mS seems fine. I have a small 50 Ohm load on the main antenna socket of the K2 but it's not essential. The antenna splitter is shown on my K3 page (http://www.astromag.co.uk/k3/) and comprises 2 x FT50-43 cores in a small project box. To key my linear and also mute the K2, I have another project box, 2 x phono sockets and a screened lead with a phono plug on it. I have a diode from each socket centre to the centre of the screened lead, anode to the phono socket centres. Take the phono plug to the KEY OUT, one phono socket goes to the KEY IN of the K2, the other to the KEY IN of the linear. 73 Dave, G4AON K3/100 #80 - Still have K2, 5982 on the table. Need to get back and play with it. I want to setup a vertical loop as a second antenna, so I can run both the K2 and K3 at the same time. But first I need to build a new launcher. Wrist-rocket bit the dust. ___ 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 - 5 Mhz Band
Andrew, the lower band edge of my K3 is 5.150 MHz and the upper 5.420 MHz (PTT below/above that results in an END messge and no TX)... I don't know why you would need a fix. Is your K3 different? Mine has the KBPF3 fitted, but I've checked the above with it disabled and it works with/without the KBPF3 enabled. 73 Dave, G4AON K3/100 #80 firmware 2.38 - I find that I cannot access three of the UK 5MHz channels, FA, FB and FC being 5,258.5, 5,278.5 and 5,288.5 KHz respectively. Presumably they fall outside the programmed 5MHz Band edges. Does anyone know if there is a fix for this ? Andrew, m0gjh ___ 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 - IF out - again
I've provided a lengthy study of the K3's IF output port at http://www.cliftonlaboratories.com/elecraft_k3_and_panadapters.htm Jack Jim Miller wrote: Subject: [Elecraft] K3 - IF out Next stupid question, What is the output level of the IF out on the transverter KXV3 option? Do I have to turn on something to get it to activate? I am trying to connect a K3 Softrock V6.2 to use as a panadapter and cannot see any output on my scope (techtronics 475) from the IF output connector on the K3. Thanks es 73, de Jim KG0KP ___ 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 Topics is bad subject line
Very well said, Don. As a senior technical writer/editor with a solid hardware engineering background, I can attest to the fact that engineers' writing ranges all the way from crystal-clear, perfectly composed expositive prose, to the utterly incomprehensible. I remember getting a sentence in a draft paper from an engineer once that literally could not be read in one breath, try as we might to fill our lungs with air to the max before starting and reading as fast as we could. :-) Very entertaining, but ultimately futile. That's why people like me have jobs -- except I don't, at the moment. RIFfed in June (too old, too expensive), still on vacation. :-) Bill W5WVO - Original Message - From: Don Wilhelm [EMAIL PROTECTED] To: Charles Harpole [EMAIL PROTECTED] Cc: Elecraft Discussion List elecraft@mailman.qth.net Sent: Tuesday, September 09, 2008 9:51 PM Subject: Re: [Elecraft] K3 Topics is bad subject line Charles, Sorry, but engineers and good, clear, concise writing do not typically run together. Way back in engineering school, I had a 'Western Civilization class professor who was bold enough to tell his sophomore class of EE students that *his* class was the most important in the curriculum. That statement generated a lot of snickers and side comments. Then over my years of real world engineering experience, I found that writing and a knowledge of history were indeed the major required assets of any good engineer - one must be able to communicate effectively with non-engineering types. Unfortunately, that fact is usually learned too little, too late and only in the 'school of hard knocks'. 73, Don W3FPR Charles Harpole wrote: ... Until the engineers among us learn to use the English language, the subject lines now in use are mostly useless. ___ 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 - IF out - again
Thanks Dave, Jack and Jerry, I've got some reading to do. I am not getting any signal out of the chip that clocks in the IF signal and drives the signal to the sound card. 73, Jim KG0KP - Original Message - From: Jack Smith [EMAIL PROTECTED] To: Jim Miller [EMAIL PROTECTED] Cc: Elecraft Reflector elecraft@mailman.qth.net Sent: Wednesday, September 10, 2008 5:04 AM Subject: Re: [Elecraft] K3 - IF out - again I've provided a lengthy study of the K3's IF output port at http://www.cliftonlaboratories.com/elecraft_k3_and_panadapters.htm Jack Jim Miller wrote: Subject: [Elecraft] K3 - IF out Next stupid question, What is the output level of the IF out on the transverter KXV3 option? Do I have to turn on something to get it to activate? I am trying to connect a K3 Softrock V6.2 to use as a panadapter and cannot see any output on my scope (techtronics 475) from the IF output connector on the K3. Thanks es 73, de Jim KG0KP ___ 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 Update Utility
I recently obtained an IBM Thinkpad 600E laptop with Windows 98(Not second edition) with a whopping 128k of memory. Can such a minimal configuration be used with the K3 update software? What rig control software might also work with this box? Thanks Thom k3hrn ___ 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 and XV144 strange behaviour
Considering this, the K3 plus XV144 while probably the best combination I have ever come across on receive is not ready for use on transmit just yet because of the ALC issue if you use a sensitive amplifier. Next time you set this up and *after* you have the drive set, set CONFIG:TX ALC to OFF. Then see if you have the same problem. If you are running SSB, you might also try setting CMP to 0. 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
RE: [Elecraft] K3 bug mode there (sort of)?
Sounds like a market for paddles with adjustable tactile feedback, like some of the high end game controllers. Give us Hams a chance and we'll replace a $100 bug with a $400 simulator that is almost as good, Hi! I agree that the bug feel is gone, but I can send okay on paddles emulating a bug. It's very useful to me working portable where I don't want to carry my bug. Ron AC7AC -Original Message- When I've tried this in the past I found that it has a very different feel than a mechanical semi-automatic key paddle (bug). I found it basically impossible to send good-sounding code. YMMV Al N1AL ___ 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 - IF out - again
If you have another receiver handy that can tune 8.2 MHz, use it to sniff at the K3 IF out. I think the signals are in the microvolt range. Jerry W4UK At 09:57 AM 9/10/2008, Jim Miller wrote: Thanks Dave, Jack and Jerry, I've got some reading to do. I am not getting any signal out of the chip that clocks in the IF signal and drives the signal to the sound card. 73, Jim KG0KP - Original Message - From: Jack Smith [EMAIL PROTECTED] To: Jim Miller [EMAIL PROTECTED] Cc: Elecraft Reflector elecraft@mailman.qth.net Sent: Wednesday, September 10, 2008 5:04 AM Subject: Re: [Elecraft] K3 - IF out - again I've provided a lengthy study of the K3's IF output port at http://www.cliftonlaboratories.com/elecraft_k3_and_panadapters.htm Jack Jim Miller wrote: Subject: [Elecraft] K3 - IF out Next stupid question, What is the output level of the IF out on the transverter KXV3 option? Do I have to turn on something to get it to activate? I am trying to connect a K3 Softrock V6.2 to use as a panadapter and cannot see any output on my scope (techtronics 475) from the IF output connector on the K3. Thanks es 73, de Jim KG0KP ___ 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 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 External ALC Modification Question
I'm in the process of implementing the K3 external ALC mod. It is not clear to me, between the picture and instructions supplied with the mod kit, what is going on at the junction of the 69.8K, the 100K and the 137K resistors. Is this junction floating above the board or soldered to one of the header pins? It kind of looks as if the junction is raised above the board but I'm not at all sure. Roger Marrotte, W1EM ___ 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 External ALC Modification Question
I'm in the process of implementing the K3 external ALC mod. It is not clear to me, between the picture and instructions supplied with the mod kit, what is going on at the junction of the 69.8K, the 100K and the 137K resistors. They converge on pin 9 of the connector, and are soldered to it. 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
RE: [Elecraft] Where have all the K2s Gone?
Often they were concerned with peripheral questions such as stringing up an antenna, soldering, or wondering how to modify their rig to provide some wanted feature, or restoring operation after making a cloud of smoke. K2/100 #4293 lost it's SSB smoke just before Region 1 field day. I have not looked into it yet, but be patient, I will ask some questions later. 73 Jukka OH4MFA ___ 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] Where have all the K2s Gone?
I just posted a question about my K2 SSB yesterday. I would agree that the number of posts has decreased concerning the other models. In fact, I try not to read problems posted by K3 owners because, for one I wouldn't be much help and secondly, it would make me less inclined to buy a new K3! I'm sure that's the kind of psychology Elecraft would rather avoid. :-) Gary, N7HTS On Wed, 10 Sep 2008 18:59:09 +0300 Jukka Tarvainen [EMAIL PROTECTED] wrote: Often they were concerned with peripheral questions such as stringing up an antenna, soldering, or wondering how to modify their rig to provide some wanted feature, or restoring operation after making a cloud of smoke. K2/100 #4293 lost it's SSB smoke just before Region 1 field day. I have not looked into it yet, but be patient, I will ask some questions later. 73 Jukka OH4MFA ___ 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 External ALC Modification Question
Lyle Johnson wrote: I'm in the process of implementing the K3 external ALC mod. It is not clear to me, between the picture and instructions supplied with the mod kit, what is going on at the junction of the 69.8K, the 100K and the 137K resistors. They converge on pin 9 of the connector, and are soldered to it. I meant, the 9th pin from the nearer end of the connector. In other words, the pad under which the leads from the three resistors come together in the photo is soldered to those leads. 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
Re: [Elecraft] K2 ALC problem
Gary, I would expect two possible causes. One is the carrier balance adjustment. Use a band below 21 MHz when adjusting and adjust for LSB first. If you have an oscilloscope, the procedure is easy - connect a dummy load to the K2 and connect a paddle or straight key to the key jack. The oscilloscope is to measure the RF output voltage, so connect it across the dummy load with a 10x probe and set the vertical sensitivity to its greatest setting. In LSB mode, close the key (which activates PTT) and adjust the carrier balance for minimum RF. That setting should occur close to the center of the trimpot. Then check USB If the USB carrier is greater than that for LSB, adjust the pot a very small amount to see if you can reduce the carrier. You may have to make some compromise to get the amount of carrier the same between LSB and USB. Note, if you use this method, do not connect a microphone to the K2 and you do not have to set the menu for SSBA bal. You can use a separate receiver to detect the minimum carrier in place of the oscilloscope as indicated in the KSB2 manual, but I suggest using the key to activate the PTT circuit rather than plugging in a microphone. A mic with its PTT button pressed can pick up residual noise and cause a false indication. This is easier done than to write about it. The second possible problem is alignment of the SSB filter. Use Spectrogram and set the BFO to position the OP1 filter passband between 300 Hz and 2600 Hz markers (use 300 and 2300 if you have the 2.1kHz filter width or 300 and 2800 if you have the 2.6kHz filter width). Center the passband between the two markers. Check both LSB and USB. If you moved the SSB passband in the step above, re-visit the SSB carrier balance adjustment. If those steps do not correct the imbalance between LSB and USB, you may have some fault on the KSB2 board. A very small difference may exist, but not to the extent that you have indicated. 73, Don W3FPR Gary D Krause wrote: Hi, I've noticed that my power output on 40 meters LSB is a lot higher than expected. I get four to five bars or more on the peaks in the ALC mode. I even got a high current reading last night and I then turned the power back from 12 watts to 10. I get 4 to five bars even at five watts. It didn't make much difference and I've found that I need to hold the mic further away. I switched to USB on 40 meters and it looks fine. It looks good on the higher USB frequencies also. I've noticed that it is around 2 to three bars on 80 meters LSB which is normal according to the manual. I'm wondering if it could be a carrier balance adjustment? Any ideas would be greatly appreciated. Everything else appears normal. I've checked all solder connections on the SSB board several times and re-flowed the connections I considered suspect. Thanks, 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 No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.169 / Virus Database: 270.6.19/1661 - Release Date: 9/9/2008 4:58 AM ___ 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 and Transverters
Hi all, I have just finished building and aligning a 4m transverter from Spectrum Communications which I intend to connect ot the K3 (and indeed have had working) as well as my XV144. The 4m transverter needs 0 volts to key the PTT. Can I use pin 10 off the accessory jack? Are there any other things I need to know about using an Elecraft transverter and a non-Elecraft one in a chain? I am using the transverter interface at 1mW. Thanks Ian -- 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
Re: [Elecraft] K3 bug mode there (sort of)?
Maybe I'm missing something here, but this all kinda reminds of that old saw about a duck... You know, If it walks like a duck and quacks like a duck... If you want a key that works like a bug, feels like a bug, and sounds like a bug... Why not just get a bug? There are lots of them out there, both antique and brand-spankin' new, like the Vibroplex line still in production today after more than a century (http://vibroplex.com/original_bug.html). I used a Vibroplex standard model bug from the time I was 13 years old and passed my Extra-class 20 WPM sending test at the FCC in 1977 using one, but today I really like my Kent paddle and Elecraft B-mode iambic keyer. One of the coolest things about my old bug was just the way it looked, so if I ever wanted to go back to a bug... I'd just go back to a bug. :-) Bill W5WVO - Original Message - From: Ron D'Eau Claire [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Wednesday, September 10, 2008 8:52 AM Subject: RE: [Elecraft] K3 bug mode there (sort of)? Sounds like a market for paddles with adjustable tactile feedback, like some of the high end game controllers. Give us Hams a chance and we'll replace a $100 bug with a $400 simulator that is almost as good, Hi! I agree that the bug feel is gone, but I can send okay on paddles emulating a bug. It's very useful to me working portable where I don't want to carry my bug. Ron AC7AC -Original Message- When I've tried this in the past I found that it has a very different feel than a mechanical semi-automatic key paddle (bug). I found it basically impossible to send good-sounding code. YMMV Al N1AL ___ 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] wrong manual with KAT2!
I recently purchased a KAT2 with speaker and K2 lid and only now have been able to check it out. I found, to my surprise, that the manual included with it is for the KXAT1 rather than the KAT2! If the individual I purchased it from would like to swap manuals, please let me know! I have forgotten who he was. -- 73 Allan K7GT ___ 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] New KX1
I just read an email asking what happened to all the K2's, K1's and KX1's. I just finished building a KX1 with the 30/80 board and the Antenna tuner. I use a Palm Paddle/Keyer so I didn't get the external paddle. It was very fun to build. I used toroids from Mychael, the Toroid Guy. I was very happy with his work. He does a much better job on them than I did when building my K2. I haven't made any contacts on my KX1 yet because my code speed is pretty slow but I'm working on it. The best I have done is someone sent me a W9?? after I answered their CQ. :) It has been fun building it and playing with it. Looking forward to working you on the air. 73 Jay W9IUF ___ 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] wrong manual with KAT2!
On Sep 10, 2008, at 11:13 AM, Allan Taylor wrote: I recently purchased a KAT2 with speaker and K2 lid and only now have been able to check it out. I found, to my surprise, that the manual included with it is for the KXAT1 rather than the KAT2! If the individual I purchased it from would like to swap manuals, please let me know! I have forgotten who he was. You can download the KAT2 manual errata sheet from the Elecraft web site. Bob, N7XY ___ 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] wrong manual with KAT2!
Allan - You should be able to download the correct manual from the Elecraft web site. - Jim, KL7CC Allan Taylor wrote: I recently purchased a KAT2 with speaker and K2 lid and only now have been able to check it out. I found, to my surprise, that the manual included with it is for the KXAT1 rather than the KAT2! If the individual I purchased it from would like to swap manuals, please let me know! I have forgotten who he was. ___ 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 - 5 Mhz Band
Andrew I'm not quite sure what you mean here. The VFO will tune continuously over the whole HF range. Are you saying you can't transmit on those frequencies? I can't remember whether I had to open up the TX or not before I had qsos on 60m. Given a sensible reason, Elecraft will supply a little bit of software to remove the TX band limits. 73 Stephen G4SJP On 10/09/2008 09:21, Andrew Vine [EMAIL PROTECTED] wrote: I find that I cannot access three of the UK 5MHz channels, FA, FB and FC being 5,258.5, 5,278.5 and 5,288.5 KHz respectively. Presumably they fall outside the programmed 5MHz Band edges. Does anyone know if there is a fix for this ? Andrew, m0gjh ___ 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 bug mode there (sort of)?
I don't know about others, but I find a bug a bit heavy and clumsy to carry around hiking on a mountain trail, not to mention the danger of damaging it. Even my smallish E.F. Johnson version of the Speed-X is bigger than my KX1. I prefer to carry my bugs in proper boxes and use them on a table top. Ron AC7AC -Original Message- Maybe I'm missing something here, but this all kinda reminds of that old saw about a duck... You know, If it walks like a duck and quacks like a duck... If you want a key that works like a bug, feels like a bug, and sounds like a bug... Why not just get a bug? There are lots of them out there, both antique and brand-spankin' new, like the Vibroplex line still in production today after more than a century (http://vibroplex.com/original_bug.html). I used a Vibroplex standard model bug from the time I was 13 years old and passed my Extra-class 20 WPM sending test at the FCC in 1977 using one, but today I really like my Kent paddle and Elecraft B-mode iambic keyer. One of the coolest things about my old bug was just the way it looked, so if I ever wanted to go back to a bug... I'd just go back to a bug. :-) 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] wrong manual with KAT2!
If your interest is to get the right information ASAP, download a copy from the Elecraft web site. They have all the manuals there. Ron AC7AC -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Allan Taylor Sent: Wednesday, September 10, 2008 11:13 AM To: elecraft@mailman.qth.net Subject: [Elecraft] wrong manual with KAT2! I recently purchased a KAT2 with speaker and K2 lid and only now have been able to check it out. I found, to my surprise, that the manual included with it is for the KXAT1 rather than the KAT2! If the individual I purchased it from would like to swap manuals, please let me know! I have forgotten who he was. -- 73 Allan K7GT ___ 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 RF Feedback and microHAM MK2R or microKEYER II
There have been persistent reports of RF feedback in the microHAM microKEYER II and MK2R/MK2R+ when used with the K3. The problem seems to be related to the design of the K3 front panel mic jack and a work around has been found for microHAM interfaces. The easiest solution for the user is to modify the microHAM DB37-EL-K3 cable by cutting the wire currently connected to pin 8 of the Foster (microphone) plug. There is no problem when the DB37-EL-K3 cable is used with the Elecraft K2 or when the DB37-El-K3 is used with a breakout cable (In-line Foster jack, RCA and 3.2mm plugs) for the rear panel mic and PTT inputs of the K3. This same issue can appear with any external interface that connects via the microphone jack. For those interfaces, the microphone return (pin 7) must be separate from any shield on the microphone cable. The cable shield and PTT ground must be connected to the shell of the Foster mic jack (chassis); they can not be connected to the mic ground (pin 7). The root of the problem appears to be in the wiring of the K3 mic jack. Pin 7 (mic ground) and pin 8 (PTT ground) are connected in parallel, through a common RF choke (L4 on the front panel board), then to the circuit common (ground). Note in the K2, both PTT (pin 8) and mic (pin 7) returns are connected directly to the circuit ground through P1 and the K2 does not have the RFI problem. 73, ... Joe Subich, W4TV microHAM America http://www.microHAM-USA.com http://groups.yahoo.com/group/microHAM [EMAIL PROTECTED] PS. Thanks to N6TV, K5WA, N6XI, AB7R and others for their help in identifying the problem and testing various solutions in what often seemed to be a losing battle. ___ 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 and Transverters
Ian, You should be able to use the KEYOUT-LP signal line. It is an open drain circuit in the K3, so depending on your transverter design, you may or may not have to add a pullup resistor. The pullup can go to the +12 volt line or anything lower in your transverter. I would suggest that a pullup resistor value of 2.2k to 10k ohms should work. Use a higher value with higher voltages. The current when the KEYOUT-LP line is low should be limited to 10 ma. or less. 73, Don W3FPR Ian Maude wrote: Hi all, I have just finished building and aligning a 4m transverter from Spectrum Communications which I intend to connect ot the K3 (and indeed have had working) as well as my XV144. The 4m transverter needs 0 volts to key the PTT. Can I use pin 10 off the accessory jack? Are there any other things I need to know about using an Elecraft transverter and a non-Elecraft one in a chain? I am using the transverter interface at 1mW. ___ 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 and microHAM MK2R or microKEYER II
Joe, I believe the 'root of the problem' is that your cable ties the shield to pin 8 rather than the mic plug shell. That is poor engineering practice. Yes, the K3 makes the situation worse by tying pins 7 and 8 together and running them to ground through an inductor, but I believe the real source of the problem is the connection of the cable shield to a line that is also used as a signal return. Normal practice would connect the cable shield to the connector shell. The K2 does not have the same problem because there is no inductor in the path for either pin 7 or pin 8. This is a classic example of 'the pin 1 problem' that Jim Brown continually refers to. 73, Don W3FPR Joe Subich, W4TV wrote: There have been persistent reports of RF feedback in the microHAM microKEYER II and MK2R/MK2R+ when used with the K3. The problem seems to be related to the design of the K3 front panel mic jack and a work around has been found for microHAM interfaces. The easiest solution for the user is to modify the microHAM DB37-EL-K3 cable by cutting the wire currently connected to pin 8 of the Foster (microphone) plug. There is no problem when the DB37-EL-K3 cable is used with the Elecraft K2 or when the DB37-El-K3 is used with a breakout cable (In-line Foster jack, RCA and 3.2mm plugs) for the rear panel mic and PTT inputs of the K3. This same issue can appear with any external interface that connects via the microphone jack. For those interfaces, the microphone return (pin 7) must be separate from any shield on the microphone cable. The cable shield and PTT ground must be connected to the shell of the Foster mic jack (chassis); they can not be connected to the mic ground (pin 7). The root of the problem appears to be in the wiring of the K3 mic jack. Pin 7 (mic ground) and pin 8 (PTT ground) are connected in parallel, through a common RF choke (L4 on the front panel board), then to the circuit common (ground). Note in the K2, both PTT (pin 8) and mic (pin 7) returns are connected directly to the circuit ground through P1 and the K2 does not have the RFI problem. ___ 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 and the mouse wheel
I like to use the mouse wheel for tuning CW, but I find the tuning speed increments too large for rtty. Is there a way to tune it in smaller increments? If not, please consider a future revision to do so. Thanks, Steve, K4FJ K3 #0290 **Pt...Have you heard the news? There's a new fashion blog, plus the latest fall trends and hair styles at StyleList.com. (http://www.stylelist.com/trends?ncid=aolsty000514) ___ 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 FW 2.38 noise blanker operation
Today I loaded the latest released version being 2.38 and was listening around the 40 meter band for weak CW signals.amazing!!! With the NB off it was impossible to even tell some on the weak signals were there but turning the NB on revealed signals there and adding the NR along with very narrow DSP bandwidths made unreadable signals into very good Q5 copy. I usually work 160 CW and mostly DX stations which are usually down in the noise so I am really looking forward to the upcoming season armed with a new K3.thanks Aptos for a job well done. 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
RE: [Elecraft] K3 RF Feedback and microHAM MK2R or microKEYER II
Don, I believe the 'root of the problem' is that your cable ties the shield to pin 8 rather than the mic plug shell. That is poor engineering practice. You are incorrect. The shield in the microHAM cables is connected to the shell of the Foster connector and the shell of the DB37 connector following proper engineering practice. As in the K3, PTT return is also circuit ground/power supply ground but in the microHAM products it is connected directly to the chassis which is also proper engineering practice. Yes, the K3 makes the situation worse by tying pins 7 and 8 together and running them to ground through an inductor, but I believe the real source of the problem is the connection of the cable shield to a line that is also used as a signal return. The K3 causes the situation by tying pins 7 and 8 together and lifting the PTT return. Again, the cable shield is properly connected to the shell/chassis at both ends. Lifting the cable shield on the K3 end does not eliminate the problem - the only fix for the user is separating the PTT and mic grounds by using the shield as the PTT return (isolating pin 8) or using the RP jacks (with their independent returns). The proper fix would be to connect pins 7 and 8 directly to the circuit common (ground) or short L4. Normal practice would connect the cable shield to the connector shell. Again, the cable shield IS correctly connected to the connector shell at both ends. The K2 does not have the same problem because there is no inductor in the path for either pin 7 or pin 8. This is a classic example of 'the pin 1 problem' that Jim Brown continually refers to. 100% correct, the K3 has a pin 1 problem. Comparing figures 1 and 2 of K9YC's Understanding and Solving RF Interference Problems will show that impedances in the signal reference line (circuit common) and between the signal reference and supply common (PSU ground or -DC) are the very definition of pin 1 problems. The problem with the mic input can be fixed as indicated above - by connecting pins 7 and 8 to the chassis or replacing L4 with a jumper. In the meantime, users of microHAM interfaces (and those with similarly impacted products) will need to work around the issue by connecting the PTT return to the connector shell instead of pin 8 or use the rear panel jacks (which, although they also have a pin 1 problem, do not exhibit the serious symptoms since none of the signal returns - except the ACC connector - share common impedances). 73, ... Joe, W4TV -Original Message- From: Don Wilhelm [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 10, 2008 3:14 PM To: [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net; [EMAIL PROTECTED] Subject: Re: [Elecraft] K3 RF Feedback and microHAM MK2R or microKEYER II Joe, I believe the 'root of the problem' is that your cable ties the shield to pin 8 rather than the mic plug shell. That is poor engineering practice. Yes, the K3 makes the situation worse by tying pins 7 and 8 together and running them to ground through an inductor, but I believe the real source of the problem is the connection of the cable shield to a line that is also used as a signal return. Normal practice would connect the cable shield to the connector shell. The K2 does not have the same problem because there is no inductor in the path for either pin 7 or pin 8. This is a classic example of 'the pin 1 problem' that Jim Brown continually refers to. 73, Don W3FPR Joe Subich, W4TV wrote: There have been persistent reports of RF feedback in the microHAM microKEYER II and MK2R/MK2R+ when used with the K3. The problem seems to be related to the design of the K3 front panel mic jack and a work around has been found for microHAM interfaces. The easiest solution for the user is to modify the microHAM DB37-EL-K3 cable by cutting the wire currently connected to pin 8 of the Foster (microphone) plug. There is no problem when the DB37-EL-K3 cable is used with the Elecraft K2 or when the DB37-El-K3 is used with a breakout cable (In-line Foster jack, RCA and 3.2mm plugs) for the rear panel mic and PTT inputs of the K3. This same issue can appear with any external interface that connects via the microphone jack. For those interfaces, the microphone return (pin 7) must be separate from any shield on the microphone cable. The cable shield and PTT ground must be connected to the shell of the Foster mic jack (chassis); they can not be connected to the mic ground (pin 7). The root of the problem appears to be in the wiring of the K3 mic jack. Pin 7 (mic ground) and pin 8 (PTT ground) are connected in parallel, through a common RF choke (L4 on the front panel board), then to the circuit common (ground). Note in the K2, both PTT (pin 8) and mic (pin 7) returns are connected directly to the circuit
[Elecraft] LP-Pan and EMU 0202 for sale
Decided to sell my LP-Pan and EMU-0202 setup. $240 complete shipped CONUS. - 73, Greg - AB7R Whidbey Island WA NA-065 ___ 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] LP-Pan and EMU 0202 for sale
The LP-Pan/EMU 202 is sold. Thanks to those who responded so quickly. Wow that was quick. Guess I under-priced it. :) - 73, Greg - AB7R Whidbey Island WA NA-065 On Wed Sep 10 13:22 , Greg - AB7R sent: Decided to sell my LP-Pan and EMU-0202 setup. $240 complete shipped CONUS. - 73, Greg - AB7R Whidbey Island WA NA-065 ___ 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 and microHAM MK2R or microKEYER II
Joe, If indeed your cable has the shield bonded to the shell and not other conductors at both ends, I agree that it is well constructed. I am sorry - I jumped to conclusions, I have not physically/electrically examined any MicroHam cables. I initially read your post as indicating that your PTT ground and your cable shield were common and both connected to pin 8. Upon re-reading, I find that is not what you wrote. 73, Don W3FPR Joe Subich, W4TV wrote: Don, I believe the 'root of the problem' is that your cable ties the shield to pin 8 rather than the mic plug shell. That is poor engineering practice. You are incorrect. The shield in the microHAM cables is connected to the shell of the Foster connector and the shell of the DB37 connector following proper engineering practice. As in the K3, PTT return is also circuit ground/power supply ground but in the microHAM products it is connected directly to the chassis which is also proper engineering practice. Yes, the K3 makes the situation worse by tying pins 7 and 8 together and running them to ground through an inductor, but I believe the real source of the problem is the connection of the cable shield to a line that is also used as a signal return. The K3 causes the situation by tying pins 7 and 8 together and lifting the PTT return. Again, the cable shield is properly connected to the shell/chassis at both ends. Lifting the cable shield on the K3 end does not eliminate the problem - the only fix for the user is separating the PTT and mic grounds by using the shield as the PTT return (isolating pin 8) or using the RP jacks (with their independent returns). The proper fix would be to connect pins 7 and 8 directly to the circuit common (ground) or short L4. Normal practice would connect the cable shield to the connector shell. Again, the cable shield IS correctly connected to the connector shell at both ends. The K2 does not have the same problem because there is no inductor in the path for either pin 7 or pin 8. This is a classic example of 'the pin 1 problem' that Jim Brown continually refers to. 100% correct, the K3 has a pin 1 problem. Comparing figures 1 and 2 of K9YC's Understanding and Solving RF Interference Problems will show that impedances in the signal reference line (circuit common) and between the signal reference and supply common (PSU ground or -DC) are the very definition of pin 1 problems. The problem with the mic input can be fixed as indicated above - by connecting pins 7 and 8 to the chassis or replacing L4 with a jumper. In the meantime, users of microHAM interfaces (and those with similarly impacted products) will need to work around the issue by connecting the PTT return to the connector shell instead of pin 8 or use the rear panel jacks (which, although they also have a pin 1 problem, do not exhibit the serious symptoms since none of the signal returns - except the ACC connector - share common impedances). 73, ... Joe, W4TV -Original Message- From: Don Wilhelm [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 10, 2008 3:14 PM To: [EMAIL PROTECTED] Cc: elecraft@mailman.qth.net; [EMAIL PROTECTED] Subject: Re: [Elecraft] K3 RF Feedback and microHAM MK2R or microKEYER II Joe, I believe the 'root of the problem' is that your cable ties the shield to pin 8 rather than the mic plug shell. That is poor engineering practice. Yes, the K3 makes the situation worse by tying pins 7 and 8 together and running them to ground through an inductor, but I believe the real source of the problem is the connection of the cable shield to a line that is also used as a signal return. Normal practice would connect the cable shield to the connector shell. The K2 does not have the same problem because there is no inductor in the path for either pin 7 or pin 8. This is a classic example of 'the pin 1 problem' that Jim Brown continually refers to. 73, Don W3FPR Joe Subich, W4TV wrote: There have been persistent reports of RF feedback in the microHAM microKEYER II and MK2R/MK2R+ when used with the K3. The problem seems to be related to the design of the K3 front panel mic jack and a work around has been found for microHAM interfaces. The easiest solution for the user is to modify the microHAM DB37-EL-K3 cable by cutting the wire currently connected to pin 8 of the Foster (microphone) plug. There is no problem when the DB37-EL-K3 cable is used with the Elecraft K2 or when the DB37-El-K3 is used with a breakout cable (In-line Foster jack, RCA and 3.2mm plugs) for the rear panel mic and PTT inputs of the K3. This same issue can appear with any external interface that connects via the microphone jack. For those interfaces, the microphone return (pin 7) must be separate from any shield on the microphone cable. The cable shield and PTT ground must be connected to the shell of the
[Elecraft] WTB L-Pan
Does anyone else want to sell an L-Pan? 73 Alan W1HYV _ Get more out of the Web. Learn 10 hidden secrets of Windows Live. http://windowslive.com/connect/post/jamiethomson.spaces.live.com-Blog-cns!550F681DAD532637!5295.entry?ocid=TXT_TAGLM_WL_domore_092008___ 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] Antenna Tuner versus Antenna Analizer ?
I bought a buddipole antenna system and I want to get one of the subject units but I don't know the difference between them, and what each one does, and which one will help me with the setup with my K3 and my antenna system ? When I bought my K3 I also bought a KAT3 which I believe is an antenna tuner for the K3 -- Will this do the same thing to match the antenna to the K3, or am I better off getting another unit like a LDG Z-100 or an LDG AT-200 Pro or something else like one of the MFJ units ? Where does the baluns come into this play with either unit ? I am just a Technician class and am studying for the General class and I have not built the K3 that I have yet, and all this antenna stuff is pretty confusing. Can anyone help please ? Thank you, Paul (73) KD8HWP ___ 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] Antenna Tuner versus Antenna Analizer ?
I am not totally sure about your question but if you are wondering what the difference is between an antenna analyzer and an antenna tuner, basically the analyzer is an instrument to determine the characteristic impedance of the antenna at the antenna terminals or the characteristic impedance of the antenna system, including the feed line, at the end of the feed line. It can also measure a number of other electrical characteristics and is a very useful instrument but I think it is probably in excess of your needs at this stage of your hand career. And antenna tuner on the other hand is a device which will attempt to transform the impedance presented to it at the end of the feed line from the antenna so that it matches the expected load impedance of your radio which is 50 ohms. The resulting transformation or match performed by the antenna tuner should result in a 1:1 SWR as seen by the final of your radio. When there is a low SWR as seen by the final of your radio there should be a maximum transfer of RF power from your radio to the antenna so that it can be radiated as a signal. However, if there is an extreme impedance mismatch between the end of the feed line and the 50 ohms expected by your radio there can be problems as noted below. I think you will find that the K-3 antenna tuner is a very good one and will tune a wide range of antennas. Since you already have it, I suggest you try it first with your antenna. If for some reason it does not work you could always try a different, external tuner. But if the antenna cannot be tuned with the built-in K-3 tuner I think you would be well advised to consider a different antenna. Just because you may be able to reduce the SWR presented to the radio by using a tuner does not mean you have an efficient system or that most of your RF will actually be radiated rather than simply dissipated in the tuner. If the terminal match between the antenna and feedline is very unfavorable, while the tuner may be able to transform the resulting SWR presented to the radio enough to allow the final to run at full power you may find that much of the power is being dissipated in the antenna tuner as heat rather than being radiated by the antenna. If for example you are running 100 W from the transmitter but 80 of those watts are being dissipated in the tuner because of a very unfavorable antenna impedance, there won't be much RF power left to actually reach and be radiated by the antenna. So, I would try the K-3 antenna tuner first. Chances are it will do the job. If not you may want to consider a better antenna before you start looking for external antenna tuners. Frankly, the only time I would consider an external tuner is if I were using a balanced feed line and even then I might choose a 4 to 1 current balin at the output of the radio instead of a balanced antenna tuner. Another situation calling for an external tuner might be if you are using an amplifier following the K-3 and the impedance presented by the antenna system cannot be handled by tuning the amplifier. Good luck with your license upgrade and your new K-3. Bruce-W8FU -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Paul Maruna Sent: Wednesday, September 10, 2008 6:47 PM To: elecraft@mailman.qth.net Subject: [Elecraft] Antenna Tuner versus Antenna Analizer ? I bought a buddipole antenna system and I want to get one of the subject units but I don't know the difference between them, and what each one does, and which one will help me with the setup with my K3 and my antenna system ? When I bought my K3 I also bought a KAT3 which I believe is an antenna tuner for the K3 -- Will this do the same thing to match the antenna to the K3, or am I better off getting another unit like a LDG Z-100 or an LDG AT-200 Pro or something else like one of the MFJ units ? Where does the baluns come into this play with either unit ? I am just a Technician class and am studying for the General class and I have not built the K3 that I have yet, and all this antenna stuff is pretty confusing. Can anyone help please ? Thank you, Paul (73) KD8HWP ___ 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 and the mouse wheel
Gary, what personal computer software are you using for this? Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Wednesday, September 10, 2008 12:44 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 and the mouse wheel I like to use the mouse wheel for tuning CW, but I find the tuning speed increments too large for rtty. Is there a way to tune it in smaller increments? If not, please consider a future revision to do so. Thanks, Steve, K4FJ K3 #0290 **Pt...Have you heard the news? There's a new fashion blog, plus the latest fall trends and hair styles at StyleList.com. (http://www.stylelist.com/trends?ncid=aolsty000514) ___ 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 Update Utility
The K3 Utility is regularly tested on Windows 98 SE, Windows XP and Windows Vista. Give it a try and let me know your experience with that small a memory! Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Thom LaCosta Sent: Wednesday, September 10, 2008 7:03 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 Update Utility I recently obtained an IBM Thinkpad 600E laptop with Windows 98(Not second edition) with a whopping 128k of memory. Can such a minimal configuration be used with the K3 update software? What rig control software might also work with this box? Thanks Thom k3hrn ___ 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] Antenna Tuner versus Antenna Analizer ?
Paul, As an addendum to the excellent summary by Bruce - W8FU, let me add that the Buddipole antennas are designed to match a 50 ohm coax feeder pretty well. They are off-center fed to get near to the correct 50 ohm impedance. So if you use the K3 antenna tuner and the Buddipole you won't have too much loss in the coax line. However, the Buddipole is a short dipole and as such not a particularly efficient radiator. You may find that with the 100 watts output of the K3 you will do very well with the Buddipole. But at some later stage of your career you may want to have a longer piece of wire. A non-resonant doublet of 66ft or more fed at the center with 450 ohm ladder line is a good minimum. BUT, don't get rid of your Buddipole. It is great for Field Day. Good luck and 73, Oliver Johns - W6ODJ On 10 Sep 2008, at 3:46 PM, Paul Maruna wrote: I bought a buddipole antenna system and I want to get one of the subject units but I don't know the difference between them, and what each one does, and which one will help me with the setup with my K3 and my antenna system ? When I bought my K3 I also bought a KAT3 which I believe is an antenna tuner for the K3 -- Will this do the same thing to match the antenna to the K3, or am I better off getting another unit like a LDG Z-100 or an LDG AT-200 Pro or something else like one of the MFJ units ? Where does the baluns come into this play with either unit ? I am just a Technician class and am studying for the General class and I have not built the K3 that I have yet, and all this antenna stuff is pretty confusing. Can anyone help please ? Thank you, Paul (73) KD8HWP ___ 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] Antenna Tuner versus Antenna Analizer ?
Paul, Since you find antennas confusing at this point, you may want to look at the Antenna article on my website http://w3fpr.qrpradio.com. It tells about antenna concepts in layman's language as much as possible, and no math. Second comment is that you may want a wire antenna instead of the Buddypole for your home station. A half wave dipole at the lowest frequency of interest fed with ladder line will receive and radiate much better than the Buddypole in most situations. One cannot defeat the laws of physics. An antenna shorter than 1/2 wavelength (1/4 wavelength for verticals with a good ground system) will be inefficient by comparison - don't be fooled by the advertising hype - a full size G5RV antenna is just not as efficient on 80 meters as a 135 foot dipole. The Buddypole *is* a very nice convenient antenna for portable work and likely more efficient than most portable antennas, but for the home station, you can likely do better with just wire. The KAT3 with a 1:1 balun or 4:1 balun will provide all the tuning range normally needed to tune a wire antenna with ladder line, you should not need a separate tuner - and the KAT3 will remember its settings for each band for you - no knob twisting when changing bands. 73, Don W3FPR Paul Maruna wrote: I bought a buddipole antenna system and I want to get one of the subject units but I don't know the difference between them, and what each one does, and which one will help me with the setup with my K3 and my antenna system ? When I bought my K3 I also bought a KAT3 which I believe is an antenna tuner for the K3 -- Will this do the same thing to match the antenna to the K3, or am I better off getting another unit like a LDG Z-100 or an LDG AT-200 Pro or something else like one of the MFJ units ? Where does the baluns come into this play with either unit ? I am just a Technician class and am studying for the General class and I have not built the K3 that I have yet, and all this antenna stuff is pretty confusing. Can anyone help please ? Thank you, Paul (73) KD8HWP ___ 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: 270.6.19/1664 - Release Date: 9/10/2008 6:00 AM ___ 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: [Elecraft_K3] K3 vs FT1000D
I've had a FT-1000D since the early 90's...the only change I've made is I got rid of an older one and got a newer one that was cosmetically prettier. It is still on the desk. I intend to keep both radios...so I'm not prejudiced for one radio versus the other because of the one I have sitting on the desk. I have done A/B tests with both radios...and I can honestly tell you that I have worked two very weak stations on the K3 that I could not work on the 1000D because I could copy them on the K3 and not the 1000D. I could tell the signal was there but it was not intelligible -- one on 20 meters and one on 40 meters...switching the same antennas back and forth between the two radios. Pluses for the 1000D -- Yes, the feel of the knob is nicer. I like the APF for cw work on the 1000D. The sound of the radio in the speaker is fuller than the K3 with the RX equalizer set flat on the K3. I can make them sound almost identical by adjusting the RX equalizer on the K3. The 1000D is 200 watts. The 1000D has band buttons. The 1000D has a real analog meter...I happen to prefer that. Pluses for the K3 -- It is easier to move around on the desk and get plugs in and out of the back; The selectivity / DSP in the K3 is a WOW! compared to the shift/width control on the 1000D; the tx test mode on the K3 is handy for adjusting things without actually transmitting a signal; the cwt and auto spot feature is pretty slick; it will be nice when they have the DVR available; I like the way the RIT and XIT CLR button works. You get new features every time Elecraft responds to a new wish list item; the ability to remember power levels by band is unique and I find it very useful. I think I get less blocking with the K3 from loud local than I do on the 1000D -- that's perception, not measurement. The K3 has 6 meters on it. The K3 can be adjusted to low power levels much more accurately and lower than the 1000D. If I were going to keep one and get rid of the other, my vote would be to keep the K3...but both radios are very nice. YMMV. As far as I'm concerned there is one more factor that is overwhelmingly in favor of Elecraftthe customer servicenot to mention that if I have to send a radio in for service the 1000D weighs in right at 70 lbs while the K3 would be 10 or less with all the packing...The chance of UPS crunching your 1000D is far greater than crunching the K3 if F=MA is still true...:-) (OK all you physicists can tell me why that is incorrect...I'm too old and too crotchety to care any more.) 73 de Greg-N4CC At 07:47 AM 9/10/2008, Chris Parnell wrote: H as funny as that may be (and it is... :) )... anyone got any decent views on this request please? Chris On 10/09/2008, at 10:56 PM, G4MKP wrote: Thanks mate! Im also available for Character Witness appearances in most court case . Ok then, the VFO knob on the K3 is crap compared to the 2000. Cheers, Terry G4MKP -- From: [EMAIL PROTECTED] [mailto:Elecraft_mailto:[EMAIL PROTECTED] Behalf Of Simon Brown (KNS) Sent: 10 September 2008 11:42 To: [EMAIL PROTECTED] Subject: Re: [Elecraft_K3] K3 vs FT1000D The Elecraft award for the best marketing slogan of 2008 goes to... Terry! Simon Brown, HB9DRV http://www.ham-radio-deluxe.comwww.ham-radio-deluxe.com - Original Message - From: mailto:[EMAIL PROTECTED]G4MKP After switching on the K3 for the first time, the next time I switched on the 2000 was to demonstrate it to the buyer when I sold it. __._,_.___ http://groups.yahoo.com/group/Elecraft_K3/message/2202;_ylc=X3oDMTM1MXRwamdrBF9TAzk3MzU5NzE0BGdycElkAzIwMTQ5NDI4BGdycHNwSWQDMTcwNTA2MzEwOARtc2dJZAMyMjA4BHNlYwNmdHIEc2xrA3Z0cGMEc3RpbWUDMTIyMTA0NzI1NAR0cGNJZAMyMjAyMessages in this topic (7) http://groups.yahoo.com/group/Elecraft_K3/post;_ylc=X3oDMTJxOGEwNThjBF9TAzk3MzU5NzE0BGdycElkAzIwMTQ5NDI4BGdycHNwSWQDMTcwNTA2MzEwOARtc2dJZAMyMjA4BHNlYwNmdHIEc2xrA3JwbHkEc3RpbWUDMTIyMTA0NzI1NA--?act=replymessageNum=2208Reply (via web post) | http://groups.yahoo.com/group/Elecraft_K3/post;_ylc=X3oDMTJmczlhMzBmBF9TAzk3MzU5NzE0BGdycElkAzIwMTQ5NDI4BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDZnRyBHNsawNudHBjBHN0aW1lAzEyMjEwNDcyNTQ-Start a new topic http://groups.yahoo.com/group/Elecraft_K3/messages;_ylc=X3oDMTJmYWszcmI5BF9TAzk3MzU5NzE0BGdycElkAzIwMTQ5NDI4BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDZnRyBHNsawNtc2dzBHN0aW1lAzEyMjEwNDcyNTQ-Messages | http://groups.yahoo.com/group/Elecraft_K3/files;_ylc=X3oDMTJnNzY0YmJnBF9TAzk3MzU5NzE0BGdycElkAzIwMTQ5NDI4BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDZnRyBHNsawNmaWxlcwRzdGltZQMxMjIxMDQ3MjU0Files | http://groups.yahoo.com/group/Elecraft_K3/photos;_ylc=X3oDMTJmZDdsbzI2BF9TAzk3MzU5NzE0BGdycElkAzIwMTQ5NDI4BGdycHNwSWQDMTcwNTA2MzEwOARzZWMDZnRyBHNsawNwaG90BHN0aW1lAzEyMjEwNDcyNTQ-Photos |
RE: [Elecraft] K3 and the mouse wheel
This sounds like a setup function in the software being used, not something in the K3. - 73, Greg - AB7R Whidbey Island WA NA-065 On Wed Sep 10 16:03 , Dick Dievendorff sent: Gary, what personal computer software are you using for this? Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [EMAIL PROTECTED]','','','')[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Wednesday, September 10, 2008 12:44 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 and the mouse wheel I like to use the mouse wheel for tuning CW, but I find the tuning speed increments too large for rtty. Is there a way to tune it in smaller increments? If not, please consider a future revision to do so. Thanks, Steve, K4FJ K3 #0290 **Pt...Have you heard the news? There's a new fashion blog, plus the latest fall trends and hair styles at StyleList.com. (http://www.stylelist.com/trends\?ncid=aolsty000514) ___ 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] Antenna Tuner versus Antenna Analizer ?
Hi Paul, Just to expand slightly on this one aspect of your question. The term balun is a contraction of balanced-unbalanced. It's a device for connecting a balanced feedline to an unbalanced one. Most transceivers these days are designed to connect to a 50 ohm coaxial cable (such as RG-8, RG-58, etc.). Coaxial cable is an unbalanced feedline, since one side (the shield) is connected to ground. Unfortunately, coaxial cable will usually have a higher loss than a balanced feedline (ladder line). The purpose of a balun is to efficiently couple the balanced feedline to the unbalanced coax that connects to your rig. Many hams do not use baluns. They will run coax from the rig all the way to the feedpoint of the antenna. This is especially true when the antenna is resonant (that is, a full half-wave on the band you're operating). Many commercial antennas are designed for connection directly to 50 ohm coax, without an intervening balun. 73, Dave KQ3T Paul Maruna wrote: ...Where does the baluns come into this play with either unit ? ... Thank you, Paul (73) KD8HWP ___ 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 #1140 For Sale on ebay
I see this went for about $125 MORE than it would have cost if bought from Elecraft. Interesting. I guess that's one assessment of the premium on not having to wait the 3.5-4 months! -- View this message in context: http://n2.nabble.com/K3--1140-For-Sale-on-ebay-tp842188p1081571.html Sent from the Elecraft mailing list archive at Nabble.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 new firmware ?
I see from Wayne that MCU 2.38 and DSP 1.90 is available.. When I connect to the utility I see the following. Installed Available MCU 2.02 2.02 FPF 00.02 00.02 DSP 1 01.88 01.77 DSP 2 N/A 01.77 I click on CHECK VERSIONS NOW. SEND ALL FIRMWARE TO K3 Nothing changes after pwr off, pwr on. What am I not doing correctly... NF8J Paul VanOveren ___ 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 new firmware ?
Paul, You're apparently forgetting to download the new firmware into the file folder that is accessed by the Elecraft K3 Utility. Don't forget to unzip the downloaded file. 73, Chuck NI0C ___ 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 #1140 For Sale on ebay
And if he was willing to ship overseas, would have probably got a few hundred more. It escapes me why people won't ship overseas. One customs form, and you are done. All the work is on the receiving end. I have sold equipment overseas for 100-300 more than the last US offer. Mike AI4NS -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of wrmoore Sent: Wednesday, September 10, 2008 7:14 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 #1140 For Sale on ebay I see this went for about $125 MORE than it would have cost if bought from Elecraft. Interesting. I guess that's one assessment of the premium on not having to wait the 3.5-4 months! -- View this message in context: http://n2.nabble.com/K3--1140-For-Sale-on-ebay-tp842188p1081571.html Sent from the Elecraft mailing list archive at Nabble.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 No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.169 / Virus Database: 270.6.19/1664 - Release Date: 9/10/2008 6:00 AM ___ 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 Update Utility
Thom, You might be able to get EMCPup to work on it. That comes with fldigi which will work as well. http://www.w1hkj.com/emcpup.html Leigh/WA5ZNU I recently obtained an IBM Thinkpad 600E laptop with Windows 98(Not second edition) with a whopping 128k of memory. Can such a minimal configuration be used with the K3 update software? What rig control software might also work with this box? Thanks Thom k3hrn ___ 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
FW: [Elecraft] K3 #1140 For Sale on ebay
Another reason to ship overseas: More DX stations. Just trying to do my part to help out the DX chasers... Mike AI4NS ___ 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 bug mode there (sort of)?
Although I'm right-handed, I originally learned on a left-handed bug because that's what my college roommate had. To this day I can send with either hand with either a bug or keyer. A rare ability, if only I could find a practical use for it! On my operating desk I have a J-38 straight key, a T. R. McElroy bug, and a Viroplex single-lever keyer paddle. Plus I have a homebrew lightweight paddle http://www.cds1.net/~n1al/ham/paddle.htm connected to the QRP rig. Elecraft content: It's nice that the K3 has separate inputs for key and key paddle so I can instantly switch between them. Al N1AL On Wed, 2008-09-10 at 11:09, Bill W5WVO wrote: Maybe I'm missing something here, but this all kinda reminds of that old saw about a duck... You know, If it walks like a duck and quacks like a duck... If you want a key that works like a bug, feels like a bug, and sounds like a bug... Why not just get a bug? There are lots of them out there, both antique and brand-spankin' new, like the Vibroplex line still in production today after more than a century (http://vibroplex.com/original_bug.html). I used a Vibroplex standard model bug from the time I was 13 years old and passed my Extra-class 20 WPM sending test at the FCC in 1977 using one, but today I really like my Kent paddle and Elecraft B-mode iambic keyer. One of the coolest things about my old bug was just the way it looked, so if I ever wanted to go back to a bug... I'd just go back to a bug. :-) Bill W5WVO - Original Message - From: Ron D'Eau Claire [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Wednesday, September 10, 2008 8:52 AM Subject: RE: [Elecraft] K3 bug mode there (sort of)? Sounds like a market for paddles with adjustable tactile feedback, like some of the high end game controllers. Give us Hams a chance and we'll replace a $100 bug with a $400 simulator that is almost as good, Hi! I agree that the bug feel is gone, but I can send okay on paddles emulating a bug. It's very useful to me working portable where I don't want to carry my bug. Ron AC7AC -Original Message- When I've tried this in the past I found that it has a very different feel than a mechanical semi-automatic key paddle (bug). I found it basically impossible to send good-sounding code. YMMV Al N1AL ___ 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] K2 / 10 - Freeze Up
Earlier this summer picked up a very nicely built K2 to replace the one I had built and foolishly sold. S/N is 4715 and the build date is 2/05. Firmware is 2.04P 1.09. Installed accessories are K160RX, KAF2, KAT2, KI02, KSB2, and KNB2. Additional modifications are the W3FPR AF Level Output and Cliffton Laboratories Z1 Broadband Buffer Amplifier (used with a SDR-IQ to provice external pan-adapter). The K2 has been used in the CW mode only. In the last several weeks have experienced a freeze-up almost every time used. Will have completed my side of QSO and received without any problem the other party. Upon their turnover discover that I have no transmit. The display will generally be showing power but, sometimes keyer speed and no amount of control twisting or button purshing will effect any change. Recycling power will yield ELE in the display but, otherwise the rig is totally non-functional. After several hours, can turn K2 back on and all is apparently normal. Any ideas would be much appreciated. Have not yet reset EEPROM to factory defaults. 72, Chuck AF4PP ___ 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] Underside of K3 getting very hot when transmitting
My K3 100W ser. 1343 gets VERY hot on the underside where the PA transistors are connected to the chassis. I´m testing at 100W FM into a dummyload for about 3-5 minutes. Is that normal? Vy 73 Jens OZ9MZ ___ 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
