[Elecraft] Notch and S-meter
Bob, Regarding your message on the topic of - k3 NR Audio level increase - you mentioned the relation of S-meter and notch. Yes, I certainly would expect the notch to be inside the agc loop so that when I notch a strong signal, the underlying weak signal would come up (and the s-meter then showing the strength of the weak signal). At this time, this is not the case. If I compare it to an analog receiver, the notch sounds like an AF notch instead of an IF notch. I prefer the IF notch. Of course, the notching in the K3 is done in digital IF, but please Elecraft, can you bring the notch in the AGC loop. With all that dynamice range of the K3, that should be possible? (I'm not a DSP programmer so I donot know what I'm asking of you) 73, Arie PA3A -Oorspronkelijk bericht- Van: elecraft-boun...@mailman.qth.net - Bob Cunnings On the flip side you mention, if notch filtering was before AGC as you wish, would you expect the S-meter indication to change when the notch filter is active? Bob NW8L __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] UK Elecraft net report for Sunday 26th April
Conditions were quite poor this week, signal levels several dB down on normal. We did discuss starting the net an hour earlier in future as we head towards summer, while I appreciate some will not be up and around at 0900 local time, many will and conditions should be better although the down side will be potentially stronger continental QRM. Often in summer I go out portable on 6m so might not be around to start the net throughout the summer months when the weather is sunny and warm. Two of the stations had vertical antennas and radials, the station who had done a lot of measurements with differing numbers of radials is Rudy, N6LF, and his web site is: http://www.antennasbyn6lf.com/ Stations this week were: G4CGG, Richard (had to leave prior to the net) M0CIC, Roy G4ARI, Tim F5VJC, Denis G3RCE, Robert 73 until next week Dave, G4AON K3/100, Acom 1000, dipole __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT - RG6 dual coax as feedline?
On Sat, 25 Apr 2009 10:58:52 -0700, Phil Kane k2...@kanafi.org wrote: On 4/25/2009 9:05 AM, Mike C wrote: This past winter I was given a new 500-foot reel of RG6 dual coax w/messenger. My extensive searching has not uncovered any transmitting applications for this coax. One of our local gurus, the late Judge Greg Milnes, W7OZ, fed the HF antennas on his three 100-foot-plus towers with 75 ohm hardline that he, probably like yourself, got from a local cable company that was surplussing it. It survived his loafing along 1500-watt amplifier output with no problems. The 1.5:1 SWR was easily tuned out. I also used the cable co. hardline in the 80's, but I built a transformer for each end of the coax. It worked very well. The transformers were in a QST article, because their was so much of that type of coax available back then. Check the back issues of QST for CTV Coax and you'll probably find a lot of articles regarding the use of that coax. 73, Tom, N5GE K3 #806, K3 #1055 XV144, XV432 W1 and other small kits. http://www.n5ge.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K1 For Sale, REDUCED
My previous listing for K1 for sale, REDUCED to $375. H. Michael Pierce KD8DVV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Increased audio level with NR
I have to agree with Hank's comment below. There were a few comments back then also agreeing. At some point I was told by Wayne or Lyle that it was on the list to be improved. Yes, perhaps changing AGC or something else made it worse -- ? -- As it is, I use it only on fairly weak SSB signals where it may help without much distortion. I DO use it on CW sometimes. I find that it can help there the most. My mileage varies! KM5Q Windy hank.k8dd wrote: NR was a good feature about a year ago - Last summer at Field Day (DSP 1.78 or 1.81) NR worked great. Over the next 6 or 7 months it seems to have changed. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Notch and S-meter
On Sun, 26 Apr 2009 10:51:04 +0200, Arie Kleingeld PA3A p...@xs4all.nl wrote: Bob, Regarding your message on the topic of - k3 NR Audio level increase - you mentioned the relation of S-meter and notch. Yes, I certainly would expect the notch to be inside the agc loop so that when I notch a strong signal, the underlying weak signal would come up (and the s-meter then showing the strength of the weak signal). At this time, this is not the case. If I compare it to an analog receiver, the notch sounds like an AF notch instead of an IF notch. I prefer the IF notch. Of course, the notching in the K3 is done in digital IF, but please Elecraft, can you bring the notch in the AGC loop. With all that dynamice range of the K3, that should be possible? (I'm not a DSP programmer so I donot know what I'm asking of you) 73, Arie PA3A [snip] I would like for the notch to be narrower. Tom, N5GE K3 #806, K3 #1055 XV144, XV432 W1 and other small kits. http://www.n5ge.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] KX1 paddle
Quick question: The paddle for the KX1 (which is available as an accessory) what are the dimensions of the square block out of which the stereo plug comes? My question is generated by wondering if this key can be plugged into my ATS3B and still permit the power plug access to its jack which is adjacent to the key jack and rather close. Please reply directly rather than to the reflector, and THANK YOU! 73, Fred - kt5x W5YA /qrp K2 # 0700 K3 # 0144 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Increased audio level with NR
I have never found the noise reduction on my K3 to be much use. This latest issue where, depending on your AGC settings, the audio level either increases or decreases, is just plain annoying. The noise reduction may have always been like that, as I rarely use mine. In addition, using one of the later 3.x firmware releases while listening to CW under high levels of thunderstorm static I just couldn't get the AGC to work as well as it does on my K2. I tried just about every AGC adjustment in the configuration menu and in the end gave up and used the K2. Using my Perseus SDR as an A/B comparison, the noise reduction in the K3 at best produces hollow sounding audio on SSB which sometimes helps marginally on CW, but overall it's poor. The Perseus noise reduction is very smooth and even at it's highest setting doesn't sound hollow. I feel the K3 NR is too aggressive - even when set to it's minimum 1-1 setting. Hopefully it will be sorted soon, but the combination of AGC and NR issues are just taking the edge off the K3 at the moment. 73 Dave, G4AON K3/100 #80, f/w 3.11 -- I have to agree with Hank's comment below. There were a few comments back then also agreeing. At some point I was told by Wayne or Lyle that it was on the list to be improved. Yes, perhaps changing AGC or something else made it worse -- ? -- As it is, I use it only on fairly weak SSB signals where it may help without much distortion. I DO use it on CW sometimes. I find that it can help there the most. My mileage varies! KM5Q Windy __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Net
Where is it today? Philip LaMarche LaMarche Enterprises, Inc. http://www.instantgourmetspices.com/ www.instantgourmetspices.com www.w9dvm.com http://www.w9dvm.com/ 800-395-7795 pin 02 727-944-3226 FAX 727-937-8834 NASFT 30210 K3 #1605 CCA 98 00827 W9DVM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] k3 NR Audio level increase
After thinking further about Steve's question about whether a mic was connected or not, I found the cause of the problem -- line in and line out were connected to a computer sound card, which although powered down, apparently provided enough coupling between line out and line in to drive the VOX when tuning through the carrier with NR on. When doing so the line out level apparently gets very high, at least briefly. The line out level was set to 10, line in gain to 22. With the cables removed from the K3 there is no problem. So it's a result of unintended coupling, it all makes perfect sense now. Thanks Steve! Bob NW8L On Sat, Apr 25, 2009 at 7:30 PM, Bob Cunnings bob.cunni...@gmail.com wrote: Yes, I've noticed the tendency of NR to null out carriers, which is easy to observe when VOX is off. But with VOX on, the phenomenon I'm observing is quite different than that - a wup-wup-wup oscillation with a period of a second or so that may persist for a considerable time after it is triggered by slowly tuning through the carrier. The more aggressive the NR setting, the more vulnerable it seems, but with a strong carrier it can be triggered at any setting. No, I have no microphone connected, and no computer. When this occurs, the red TX indicator does *not* light if K3 is in TEST mode, that's why I hadn't noticed it earlier - I had the rig in TEST mode at the time. Bob NW8L On Sat, Apr 25, 2009 at 7:01 PM, Steve Ellington n...@carolina.rr.com wrote: Bob When in USB/LSB, NR does tend to totally null out carriers. CW does make that wup-wup sound as it's notched out. I'm not sure why NR would be acting as an Auto Notch but this does seem to be the case. Don't know about your red light...Do you have a mic connected? Steve Ellington n...@carolina.rr.com - Original Message - From: Bob Cunnings bob.cunni...@gmail.com To: Elecraft@mailman.qth.net Sent: Saturday, April 25, 2009 7:39 PM Subject: Re: [Elecraft] k3 NR Audio level increase Bob NW8L On Sat, Apr 25, 2009 at 3:20 PM, Bob Cunnings bob.cunni...@gmail.com wrote: Apparently NR *is* upstream of AGC, since a while back NR was disallowed unless AGC was enabled [1] in order, according to K2VCO, to prevent instability [2]. By the way, I can observe this instability (a wup-wup oscillation) in LSB/USB modes with an S9 carrier, and AGC settings on the light side (high threshold, low slope, with THR=8 and SLP=0 being the extreme). I ran into this tuning through shortwave BC stations with NR enabled with THR and SLP set to 5. I'm using firmware version 3.11. What seems odd to me is that although I can reproduce the audio level increase cases observed by others when NR is enabled, the S-meter indication doesn't change - I suppose that the S-meter pickoff point is upstream of NR? On the flip side you mention, if notch filtering was before AGC as you wish, would you expect the S-meter indication to change when the notch filter is active? Bob NW8L [1] http://www.mail-archive.com/elecraft@mailman.qth.net/msg58245.html [2] http://www.mail-archive.com/elecraft@mailman.qth.net/msg60930.html On Sat, Apr 25, 2009 at 12:55 PM, Joe Subich, W4TV li...@subich.com wrote: It's not working as it should ... there should be no volume change when engaging NR. Noise reduction should work on the audio AFTER AGC. If anything, the test results below should show a very slight drop with NR due to the removal of the unwanted (broadband) components but the peak level should not change. This NR problem is the flip side of the issue with the notch filter ... Notch is working AFTER the AGC where it should work before AGC while NR is working before the AGC where it should work AFTER the AGC. 73, ... Joe, W4TV __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT - RG6 dual coax as feedline?
On Sat, 25 Apr 2009 17:29:15 -0400, Don Wilhelm wrote: My reason: The paralleled line certainly will work, but the loss is the same as a single coax of the same material, I don't agree, Don. Loss in coax at HF is all I squared R. If you match to twice the impedance, you'll have half the current. This means that the fraction of the loss in the center conductor will be 6 dB lower at the higher impedance. On the other hand, the loss in most coax shields is lower than the loss in the center conductor, so I would expect losses to be about 3 dB lower, not 6 dB. and in a multiband situation, it certainly will be run at a high SWR. Agreed. This is not a good solution for antennas of random impedance. But it IS a good solution for antennas that match to about 2.5:1 or better. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Tune carrier with hum
Hi, on my K3 the tune carrier is modulated by a hum noise. If i press the tune button i can hear this noise with an independent receiver. It has nothing to do with my power supply and the problem appears between 1 to 100 watts. It seems that the noise is generated inside the K3. I have this noise only during tune, all other transmitting works flawless. Any idea ? 73 de Uli (DL4YCM) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] k3 NR Audio level increase
I don't normally make comments on these subjects.. But I have to say, the one reason that I bought my K3, was because when I turn on the NR with a weak signal, and a S5 to S7 noise level (which is what I normally have at my QTH) the CW underneath the noise pops up, gets louder, and I can actually work it! Why would I want this feature changed? Isn't the idea to increase (or enhance as Lyle says) the signal your trying to listen to, while at the same time suppressing the noise below it. I would much rather have to turn down the volume control, then have to wish I was able to turn it up. It seems to me that most of the people with the Audio that cleans out their ears is due to the fact they have uncontrolled AGC levels due to very high Thresholds and very low slopes. I belive if you turn your threshold on a little sooner, this could be avoided. At least from what I've found. As for the meter not reflecting the change in audio level when you turn on the NR. This is a Positive, not a negative. How can you give a proper RST report if you can't even see the pre-effected signal strength? This is exactly the problem that the people using the FT-2000 are having. They have now had to tune their sub receiver to the same freq. as the main, Just to read that non DSP affected S meter. Granted, every user is different, but in my opinion, the NR works just as it should. Let let that be noted Wayne. Michael N6MQL _ Rediscover Hotmail®: Now available on your iPhone or BlackBerry http://windowslive.com/RediscoverHotmail?ocid=TXT_TAGLM_WL_HM_Rediscover_Mobile2_042009 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Property with 3.11 an error
Property only times 2,78 functions changed there everything. The following error does not have I with me if I 3,11 has cannot I on the 12m volume any more send it comes error message ERR PL1 I have 100w+sub installet -- Neu: GMX FreeDSL Komplettanschluss mit DSL 6.000 Flatrate + Telefonanschluss für nur 17,95 Euro/mtl.!* http://dslspecial.gmx.de/freedsl-surfflat/?ac=OM.AD.PD003K11308T4569a __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] QSK With K3 and KW Amp
Hello, Is any anyone using one of the old DEO QSK-1500 full QSK switching units (or the similar PIN diode QSK unit from Ameritron) with their K3 and external amplifier? I haven't yet received my K3 but I would like to hook it up with my Heath SB-220 to run full QSK. I suspect that I will need to use an external keyer (and not the one internal to the K3) to trigger the PIN diode switching electronics. Same deal with software-generated CW. If you are running full QSK this way with your K3, let me know if you experienced any problems setting up the switching, and if you are successfully running contest/computer software in the CW mode with full QSK. --Ed, N3CW-- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Net
Sunday 2300z (Sunday 4 PM PDT) 14050 kHz Monday 0100z (Sunday 6 PM PDT) 7045 kHz -Original Message- From: Phil LaMarche plama...@verizon.net Sent: Apr 26, 2009 10:14 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Net Where is it today? Philip LaMarche LaMarche Enterprises, Inc. http://www.instantgourmetspices.com/ www.instantgourmetspices.com www.w9dvm.com http://www.w9dvm.com/ 800-395-7795 pin 02 727-944-3226 FAX 727-937-8834 NASFT 30210 K3 #1605 CCA 98 00827 W9DVM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Tune carrier with hum
Uli: I suggest having a local ham station listen to your signal instead of using an independent receiver. Common mode hum can play tricks on you. N4LQ Steve n...@carolina.rr.com - Original Message - From: Ulrich Quandt ulrich.qua...@online.de To: Elecraft@mailman.qth.net Sent: Sunday, April 26, 2009 1:36 PM Subject: [Elecraft] K3 Tune carrier with hum Hi, on my K3 the tune carrier is modulated by a hum noise. If i press the tune button i can hear this noise with an independent receiver. It has nothing to do with my power supply and the problem appears between 1 to 100 watts. It seems that the noise is generated inside the K3. I have this noise only during tune, all other transmitting works flawless. Any idea ? 73 de Uli (DL4YCM) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Net
And the SSB net was on 14.316 at 1800Z, as usual. Phil -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net]on Behalf Of Kevin Rock Sent: Sunday, April 26, 2009 11:42 AM To: Phil LaMarche; elecraft@mailman.qth.net Subject: Re: [Elecraft] Net Sunday 2300z (Sunday 4 PM PDT) 14050 kHz Monday 0100z (Sunday 6 PM PDT) 7045 kHz -Original Message- From: Phil LaMarche plama...@verizon.net Sent: Apr 26, 2009 10:14 AM To: elecraft@mailman.qth.net Subject: [Elecraft] Net Where is it today? Philip LaMarche LaMarche Enterprises, Inc. http://www.instantgourmetspices.com/ www.instantgourmetspices.com www.w9dvm.com http://www.w9dvm.com/ 800-395-7795 pin 02 727-944-3226 FAX 727-937-8834 NASFT 30210 K3 #1605 CCA 98 00827 W9DVM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Tune carrier with hum
Do you have a computer connected to your K3, either via the audio connections or the RS-232 cable? If so, make sure that you have the chassis of the K3 really well bonded to the chassis of the computer. I had a similar problem (not only in TUNE, though) and received a few on-the-air reports about it, so I listened with a second rig (powered by a battery for ground isolation) while transmitting with the K3 into a dummy load. I could hear the hum, which wasn't even a clean 60 Hz (more like a spectrum of multiple tones 30 Hz or so apart), and I could also see the hum using Spectrogram while feeding the audio from the second rig into the sound card of the computer. I assumed I had a ground loop somewhere and began disconnecting other equipment (amplifier, SWR bridge, UPS, etc) one by one but nothing worked ... not even operating the K3 off battery power. It wasn't until I finally disconnected the computer that I no longer heard the hum in the second rig. I tried using a simple 18 inch clip lead to bond the K3 chassis to the computer chassis and that helped, but it required a 12 inch piece of RG-213 copper shielded braid to make the problem really go away. 73, Dave AB7E Ulrich Quandt wrote: Hi, on my K3 the tune carrier is modulated by a hum noise. If i press the tune button i can hear this noise with an independent receiver. It has nothing to do with my power supply and the problem appears between 1 to 100 watts. It seems that the noise is generated inside the K3. I have this noise only during tune, all other transmitting works flawless. Any idea ? 73 de Uli (DL4YCM) __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] QSK With K3 and KW Amp
I've run my SB-1000 with QSK-5 pin diode switch with no problems with my K3 using the KEY OUT signal. -Mike, AB9V Ed G wrote: Hello, Is any anyone using one of the old DEO QSK-1500 full QSK switching units (or the similar PIN diode QSK unit from Ameritron) with their K3 and external amplifier? I haven't yet received my K3 but I would like to hook it up with my Heath SB-220 to run full QSK. I suspect that I will need to use an external keyer (and not the one internal to the K3) to trigger the PIN diode switching electronics. Same deal with software-generated CW. If you are running full QSK this way with your K3, let me know if you experienced any problems setting up the switching, and if you are successfully running contest/computer software in the CW mode with full QSK. --Ed, N3CW-- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] QSK With K3 and KW Amp
On Apr 26, 2009, at 1:39 PM, Ed G wrote: I suspect that I will need to use an external keyer (and not the one internal to the K3) to trigger the PIN diode switching electronics. Same deal with software-generated CW. If you are running full QSK this way with your K3, let me know if you experienced any problems setting up the switching, and if you are successfully running contest/computer software in the CW mode with full QSK. Not quite sure why you think an external keyer would be required. I use my K3 driving an AL-1200 with an internal QSK-5PC -- the K3 keys it just fine, with no hotswitching on either key down or key up. Grant/NQ5T __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft SSB Net results (4/26/09)
We had a short SSB net again today (1800Z) on 14.316 MHz. The signal levels were OK to net control (generally ranging from 55 to 59+20). A few relays were needed. We had 21 participants including net control and ran for only 18 minutes. No significant discussions. Here is a list of the 21 participants: Station NameQTH Rig S/N N6JWJohnCA K3/K2 936/3290 (K2 at 5 W) KB0YH Gus CO K3 441 N0TAJohnCO K3 994 K4SOMarkVA K3 2861 AE6WA MikeCA K3 508 VE3QF TonyON K3 137 K8MBY PhilOH K3 609 W1USN MikeMA K3 1964 N1RFB MarkMA K3 427 W6VYBob CA K3 1590 K4GCJ Gerry NC K3 1597 KA0NCR Arnie NE K3 185 K6LZL Wyatt CA KN1WLou NH K3 189 AB2TC Ken NY K3 82 N5VEZ/m MikeMS IC7000 W8QVG Ron AZ TS940S W7SJRoger WA K3 73 KH7CMervHI K3 2306 W8YMO Harry OH K3 166 NS7PPhilOR K3 1826 Thanks to everybody who checked in. Have a good week. 73, Phil, NS7P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] QSK With K3 and KW Amp
I worked with Doc Sheller on the DEO QSK1500 many years ago ... With the current behavior of the K3's Key Out jack, you should be able to use the FT-757 instructions in the DEO QSK1500 manual (K3, Key Out to QSK 1500 Amp Rly In, and QSK1500 AMP RLY Out to the SB-200 PTT line). The QSK 1500 will follow keying from the K3 ... If you want to add an extra level of safety, connect a pull-up resistor between +5V and the K3 INH input and connect the QSK 1500 Pos Key Out to the INH input of the K3 (close to ground to allow RF). 73, ... Joe, W4TV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Ed G Sent: Sunday, April 26, 2009 2:40 PM To: elecraft@mailman.qth.net Subject: [Elecraft] QSK With K3 and KW Amp Hello, Is any anyone using one of the old DEO QSK-1500 full QSK switching units (or the similar PIN diode QSK unit from Ameritron) with their K3 and external amplifier? I haven't yet received my K3 but I would like to hook it up with my Heath SB-220 to run full QSK. I suspect that I will need to use an external keyer (and not the one internal to the K3) to trigger the PIN diode switching electronics. Same deal with software-generated CW. If you are running full QSK this way with your K3, let me know if you experienced any problems setting up the switching, and if you are successfully running contest/computer software in the CW mode with full QSK. --Ed, N3CW-- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 SubRX S-meter woes
Dear Elecrafters, I'm still having problems with the subRX in K3 #2887. Occasionally when I turn the subRX on, it appears dead, only it's not really dead, just resting/pining for the fjords because mysteriously it usually springs back to life when I power-cycle the rig. I thought it might be a recurrence of what happened before i.e. the subRX worked OK on every band except 40m (re-soldering the 40m bandpass toroids seemed to help that), except now I'm trying to use it on 10m, where it has been working fine for days. And changing subRX bands makes no difference now. It looks permanently comatose. I have had ERR DSE a couple of times with error codes E037979 and E027979 (curious coincidence? Or I might have written the first one down wrongly) and E03000C. I've tried re-loading the firmware, loading the whole set (3.11) each time as there is no easy option to just reload part ... The first time I re-loaded the K3 Utility reported failing to load DSP2, the second time it worked OK but the subRX is still dead. I also now have the flickery S-meter thing that I noticed when the rig was first built. It is flickering very rapidly up to the end-stop, even with no antenna connected, and whether the subRX is on or off. Looks decidedly sick. I've noticed this symptom occasionally in the past week but it usually goes away of its own accord. What can the panel suggest? I'd really like to continue monitoring 28020 and the 10m beacons ... 73 Gary ZL2iFB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 CW keying with N3FJP
All, I am using my laptop and serial port to key the K3 using N3FJP logger. With the config PTT-Key set to rts-dtr it runs ok. But, I don't think the spacing sounds as good as when I use my paddle and the internal K3 keyer. Anyone else heard this? Is there something to adjust? Thanks, John N0EVH __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft SSB Net results (4/26/09)
Phil, Please emphasize to relaying stations to pass check-in stations calls and names to you. I tried to check in and was acknowledged by a 5 land station who apparently did not pass my check-in to you. Thanks. Roy Morris W4WFB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] TX DLY in VOX mode?
I'm running the K3 in DATA A mode for WSJT using straight-through audio connections and using VOX to key the rig (and amp). The amp uses an old frame relay, and consequently I have TX DLY set to 20 ms, the max. I'm concerned that RF out when using VOX may not be delayed by TX DLY as it is when using PTT control. Can someone state as a fact certain that the delay is there when using VOX? If so, what happens to the audio stream that triggers the VOX -- is it buffered in a DSP delay line for up to 20 ms, or is it simply gated off for up to 20 ms? Not a big deal in WSJT since the messages are extremely short and loop continuously, but I'd like to know. Bill W5WVO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 Rear Panel Microphone Jack Bias Voltage
I recently assembled my K3 and am having some trouble getting a microphone to operate. All of my station microphones are Motorola handheld microphones. These are dynamic microphones which have a built-in amplifier, to make them appear as carbon microphones. As such, they require bias voltage. My first attempt was to connect the microphone via the rear panel jack, using the following menu settings: Mic SEL rPL.bIAS and MIc + LIn On Under these settings, I get no bias voltage on the rear panel microphone jack. When I set Mic SEL for FPL.bIAS, I get bias voltage on the front panel, and a microphone connected to the front panel connection works as expected. FYI, the radio Serial Number is 2925 and the firmware is version 1.98, MAR 31, 2009. Is it not possible to get microphone bias voltage on the rear panel connector? Do I have something set up incorrectly? Any suggestions would be appreciated. Thank-you Paul Alexander wb9ipa __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Property with 3.11 an error
Refer to the K3 Owner's Manual page 67 for a description of ERR PL1. You may have to re-calibrate the Synthesizer for 12m - see page 49 of the K3 Owner's manual. 73, Don W3FPR dg...@gmx.de wrote: Property only times 2,78 functions changed there everything. The following error does not have I with me if I 3,11 has cannot I on the 12m volume any more send it comes error message ERR PL1 I have 100w+sub installet __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Rear Panel Microphone Jack Bias Voltage
Paul If you unplug that mic from the rear panel jack, can you measure any bias v.? I use a computer mic on the RP with bias set for rP.H BIAS. Steve Ellington n...@carolina.rr.com - Original Message - From: paul alexander wb9...@gmail.com To: elecraft@mailman.qth.net Sent: Sunday, April 26, 2009 8:54 PM Subject: [Elecraft] K3 Rear Panel Microphone Jack Bias Voltage I recently assembled my K3 and am having some trouble getting a microphone to operate. All of my station microphones are Motorola handheld microphones. These are dynamic microphones which have a built-in amplifier, to make them appear as carbon microphones. As such, they require bias voltage. My first attempt was to connect the microphone via the rear panel jack, using the following menu settings: Mic SEL rPL.bIAS and MIc + LIn On Under these settings, I get no bias voltage on the rear panel microphone jack. When I set Mic SEL for FPL.bIAS, I get bias voltage on the front panel, and a microphone connected to the front panel connection works as expected. FYI, the radio Serial Number is 2925 and the firmware is version 1.98, MAR 31, 2009. Is it not possible to get microphone bias voltage on the rear panel connector? Do I have something set up incorrectly? Any suggestions would be appreciated. Thank-you Paul Alexander wb9ipa __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft SSB Net results (4/26/09)
I thought I heard a 4 down in the noise, but nobody relayed it. Could have been you. Sure. Will do. I thought I was getting the relays. Thanks for trying. 73, Phil, NS7P -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net]on Behalf Of Roy Morris Sent: Sunday, April 26, 2009 5:10 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Elecraft SSB Net results (4/26/09) Phil, Please emphasize to relaying stations to pass check-in stations calls and names to you. I tried to check in and was acknowledged by a 5 land station who apparently did not pass my check-in to you. Thanks. Roy Morris W4WFB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 SubRX S-meter woes
I'm still having problems with the subRX in K3 #2887. ... Self-follow-up. I loaded the original 2.78 firmware and the subRX sprang back to life. Joy! I don't know whether it's pure good coincidence or something to do with the 3.11 firmware, so I've re-loaded 3.11 and will carry on using it as normal to see if it recurs. So far so good, it's all working fine again, subRX, S-meter and all. Now all I need is a squeak more propagation on 10m (where's the Kspots option when you need it?). :-) 73 Gary ZL2iFB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] OT - RG6 dual coax as feedline?
On Sun, 2009-04-26 at 10:33 -0700, Jim Brown wrote: On Sat, 25 Apr 2009 17:29:15 -0400, Don Wilhelm wrote: My reason: The paralleled line certainly will work, but the loss is the same as a single coax of the same material, I don't agree, Don. Loss in coax at HF is all I squared R. If you match to twice the impedance, you'll have half the current. Actually you'll have 1/sqrt(2) or 0.707 the current. So you'll have 1/2 the power loss in each coax, but there are two coaxes so the total power loss is exactly the same as with a single coax. As long as everything is matched it doesn't matter how many coaxes you use. The loss is always the same. This means that the fraction of the loss in the center conductor will be 6 dB lower at the higher impedance. On the other hand, the loss in most coax shields is lower than the loss in the center conductor, so I would expect losses to be about 3 dB lower, not 6 dB. and in a multiband situation, it certainly will be run at a high SWR. Agreed. This is not a good solution for antennas of random impedance. But it IS a good solution for antennas that match to about 2.5:1 or better. The same could be said about using a single coax as well. One advantage to using two coaxes is that each carries only half the power (0.707 the voltage), so you get twice the power-handling capability. One issue with making parallel-conductor line with two coaxes is that they must have the same electrical length. If they are cut from the same roll of high-quality coax, then identical physical length should equate to identical electrical length, but it still might be worth checking to be sure. 73, Jim K9YC Al N1AL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [TFIC] Wish List item...
TFIC Tongue Firmly in Cheek I would like to see the spot frequency changeable in 1 Hz increments. That way I could set it to 523 which is only 11 cents lower than Middle C (523.25Hz). For those of us who sing in choral groups, but who aren't blessed with Perfect Pitch. Think of the benefit of hours of CW tuned to Middle C. At least we might start to approach getting the pitch one note down solid!! /TFIC Cheers, -rick, K7LOG TFIC: Tongue Firmly In Cheek __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Elecraft CW Net Report for April 26th 27th, 2009
Good Evening, There is a local station playing music from the '80s in the background. I have not heard The Clash or The Ramones in a long time. This is relaxing compared to listening to the QRN on 40 meters :) Hopefully they will play the Plasmatics soon, I miss Wendy. However, the nets were OK but not great; conditions were marginal once again. On 40 meters there was one guy calling CQ with a drifting rig. He would start out far below my frequency and while he was calling the rig would drift until he was gone again on the high side. I am not sure where his receiver was tuned or whether he had QSK but he never did hear me respond. You have to love tube gear; I would have preferred a little chirp though ;) From the reports I gathered it looks like spring is slowly coming across the continent. I think I may have had the only snow this week. Even the folks in Colorado and Alaska did not report any, just here. I had a few daffodils zapped by cold. Maybe I should cut them and put them in a vase. Then I can sneeze for a week from all the pollen :) But, Pat likes them so what's a little sneezing? On to the lists = On 14049 kHz at 2300z: N0SS - Tom - MO - K3 - 008*** QNI #305 *** K9DMV - Joe - IL - K2 - 5628 NO8V - John - MI - K3 - 820 K1THP - Dave - CT - K3 - 686 N6IB - Ron - CA - K3 - 1873 K6DGW - Fred - CA - K3 - 642 K6PJV - Dale - CA - K3 - 1183 K9ZTV - Kent - MO - K3 - 21 KL7CW - Rick - AK - KX1 - 798 * QNI #165 * W9FFU/7 - Glenn - WA WB5BKL - Nick - TX - K3 - 231 N0AR - Scott - MN - K2 - 4866 On 7044.5 khz at 0100z: K6PJV - Dale - CA - K3 - 1183 * QNI #120 * N0AR - Scott - MN - K2 - 4866 K9DMV - Joe - IL - K2 - 5628 QNI #50!!! NO8V - John - MI - K3 - 820 N0TA - John - CO - K3 - 994 W7KTE - Herb - OR W6NF - Jack - NV Now that Ron, AC7AC, is on the coast I no longer get calls from Forest Grove. That changed this evening when I asked W7KTE his location. Forest Grove to me on 40 meters. I do believe I have seen that call on a license plate while out driving. Once again K6PJV buzzed my headphones. A very distorted signal but I know it is not his rig; he is simply overloading my phones! Maybe I should turn AGC back on. But the signal to noise ratio seems better without it in the way. Until next week stay well, 73, Kevin. KD5ONS (Net Control Operator 5th Class) - __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [TFIC] Wish List item...
I would like to see the spot frequency changeable in 1 Hz increments. That way I could set it to 523 which is only 11 cents lower than Middle C (523.25Hz). 523.25 Hz is C5 - one octave above Middle C. Middle C is C4 ... 261.63 Hz. For those with well tuned ears, A3 (220 Hz) and A4 (440 Hz) are available as exact tones ... E4, F4, F#4, E5, F#5 can be generated within 1 Hz and C4, D#4, G4, F5, within 2 Hz (less than 1% error worst case). 73, ... Joe, W4TV -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rick Commo Sent: Monday, April 27, 2009 12:22 AM To: elecraft@mailman.qth.net Subject: [Elecraft] [TFIC] Wish List item... TFIC Tongue Firmly in Cheek I would like to see the spot frequency changeable in 1 Hz increments. That way I could set it to 523 which is only 11 cents lower than Middle C (523.25Hz). For those of us who sing in choral groups, but who aren't blessed with Perfect Pitch. Think of the benefit of hours of CW tuned to Middle C. At least we might start to approach getting the pitch one note down solid!! /TFIC Cheers, -rick, K7LOG TFIC: Tongue Firmly In Cheek __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
