Re: [Elecraft] Carrier
Don Wilhelm wrote: Unless there is something wrong with your KSB2, adjusting the carrier balance pot on the SSB board will yield good carrier suppression. [...] If you do not have a 'scope, an RF Probe and DMM may be used, but you will have to adjust slowly to determine the minimum because the response time of the DMM will be slower than the 'scope voltage indication. This is what I did, but I found the null to be VERY VERY tight, the pot had to be in exactly the right place otherwise I had quite a strong carrier. I wouldn't be surprised if I've since knocked it and have too strong a carrier myself. Is the carrier balance pot supposed to be quite so sensitive, or have me and perhaps SM0YQC built something wrong that makes it so tricky to set? -- Nosey Nick Waterman, G7RZQ, K2 #5209. use Std::Disclaimer;[EMAIL PROTECTED] IBM: Intriguingly Blue Motif ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Re: Enclosure for Elecraft T1 tuner
OH, ok, I guess I feel better now! 73/72/HP-41C de Alex NS6Y On May 29, 2006, at 2:39 PM, W2AGN wrote: FYI, for many years 72 has been used among QRPers to indicate Best QRP. Originated by Oleg, RV3GM back in 1994 or 1995. -- _ _ _ _ _ / \ / \ / \ / \ / \ John L. Sielke ( W ) ( 2 ) ( A ) ( G ) ( N ) http://w2agn.net \_/ \_/ \_/ \_/ \_/ http://www.blurty.com/users/w2agn/ CRUSTY OLD CURMUDGEON - AND PROUD OF IT! ___ 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] Wha'ts Wrong With Our Radios (WAS:NewProducts, Building Demo, ...
In a message dated 5/29/06 10:02:15 PM Eastern Daylight Time, [EMAIL PROTECTED] writes: The real reason is that the DoD has a side business of supplying out-of-service military hardware - including communications gear - to our less well endowed allies. I agree with Phil's take on military surplus, and would add one more factor: the way WW2 ended. THe Manhattan Project was so secret that even VP Harry Truman did not know of its existence until FDR died. Even then, there was no guarantee of success. Allied military planning had long assumed that complete invasion and collapse of the Axis countries would be needed for victory. So enormous quantities of war materiel were produced. That turned out to be true in Europe, but with the sudden end of the war in September 1945, and the rapid demobilization that followed, there was a tremendous amount of equipment in the supply pipeline that suddenly became surplus. Due to its relatively high value and relatively small size, radio and electronic surplus was very popular. The pile was so big it took decades to use up. IMHO. A bit OT, but appropriate for (traditional) Memorial Day, I think. 73 de Jim, N2EY ___ 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] A 2006 K2-B w/ Color TFT?
Or try Ham Radio Deluxe at www.ham-radio.ch This one is free, with lots of bells and whistles for many rigs; and it even has a pretty good logbook. Alan 8P9BM -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Don Wilhelm Sent: Tuesday, May 30, 2006 00:19 To: Fred (FL); elecraft@mailman.qth.net Subject: RE: [Elecraft] A 2006 K2-B w/ Color TFT? Fred, You can have most of your desire list right now - just try coupling the K2 up with N4PY software or Ham Radio Deluxe. With either program, you have the display that you are asking about and one can either use the K2 buttons to change things or you can click the mouse on the software display 'buttons'. It takes a bit of configurating to get exactly what you want, but most of the capability is already available. The TFT display that you want is already present on your computer monitor - all it takes is the KIO2 and a cable to a serial port. 73, Don W3FPR ___ 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] Wha'ts Wrong With Our Radios (WAS:NewProducts, Building Demo, ...
On May 30, 2006, at 5:49 AM, [EMAIL PROTECTED] wrote: Due to its relatively high value and relatively small size, radio and electronic surplus was very popular. The pile was so big it took decades to use up. And it was exactly this surplus that caused the Heath company to start producing electronic kits. (they had originally been a manufacturer of kit aircraft) They happened to buy a bunch of surplus electronic components, and they had to figure a way to get rid of them. The result was the O-1 scope, which sold in large quantities. Of course, Heathkits have left an indelible legacy on amateur radio even though they stopped producing kits in 1986. Elecraft has picked up and continued that legacy of quality electronic kits. (there, I brought it around to relevance for you) Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ 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] K60XV Problem
Hello everyone. I installed a 60 meter board last night and it seems to have a problem. When I entered 5000 kHz I had what sounds like a loud oscillator sound on the audio. I turned on another radio and had WWV loud and clear at 5000 kHz in that radio. When I increase the frequency the oscillator sound goes away (maybe just beyond my hearing) and I hear a very faint sw station at 5070 kHz. Between 5070 kHz and 5300 kHz I can't hear the buzz saw and I adjusted the trimmers for max power out. I'm not getting any error messages on the display. So far I haven't found any visible assembly errors. Has anyone had this problem before? Any ideas what might be bad? On a previous K2 I built with this option I heard WWV right away at 5000 kHz. Thanks very much. Harvey KN6VPNo virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 5/29/2006 ___ 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 receiver issues during contest?
Hey folks, I did not operate during the big contest this weekend but spent a bit of time listening. I just got my KAF2 audio filter built and installed and was anxious to see how it did. While tuning around I noticed some problems that are probably just characteristics of the rig. On 40 CW, there were some strong signals to my 28' vertical. 30-40 dB over S9 was not uncommon. I noticed with one of these stations, I could hear clicks up and down the band for +/- several KHz. I though he had key clicks. Then I found a 2nd signal that produced the same results. Then a 3rd and a 4th. I suppose it is possible that all of them had issues with key clicks but it is also possible that I've hit a limit in the K2's ability to handle strong signals close in. All of the signals were strong. K2 doesn't do this as a rule on S9 signals. In fact, this is the first time I've noticed it so I'm going to say that signals 20 dB over S9 don't produce it (I'd have to double check that though). This makes me think it is an issue with only very strong signals. Narrowing the IF filter helped. Engaging the attenuator helped. Kicking in the audio filter helped but through it all, the clicks were still there. I have no NB so it wasn't being generated by that circuit. So does this sound like normal fare for the K2 or does it sound like an issue? - Keith KD1E - - K2 5411 - ___ 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] K60XV Problem
Harvey, Re-check the VCO range (voltage on the left end of R30), and be certain all the ands fall within the proper range. It is normal for the VCO voltage to become so small below 5300 kHz that the tuning will not continue on down to 5000 Hz. Also the response of the bandpass filter may fall off quite a bit at 5000 Hz which will reduce the ability to hear at that frequency. I cannot speak to your 'buzz-saw' - you will have to be more specific. 73, Don W3FPR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Harvey Howell Sent: Tuesday, May 30, 2006 9:53 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K60XV Problem Hello everyone. I installed a 60 meter board last night and it seems to have a problem. When I entered 5000 kHz I had what sounds like a loud oscillator sound on the audio. I turned on another radio and had WWV loud and clear at 5000 kHz in that radio. When I increase the frequency the oscillator sound goes away (maybe just beyond my hearing) and I hear a very faint sw station at 5070 kHz. Between 5070 kHz and 5300 kHz I can't hear the buzz saw and I adjusted the trimmers for max power out. I'm not getting any error messages on the display. So far I haven't found any visible assembly errors. Has anyone had this problem before? Any ideas what might be bad? On a previous K2 I built with this option I heard WWV right away at 5000 kHz. Thanks very much. Harvey KN6VP ___ 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 receiver issues during contest?
- Original Message - From: Darwin, Keith [EMAIL PROTECTED] some On 40 CW, there were some strong signals to my 28' vertical. 30-40 dB over S9 was not uncommon. I noticed with one of these stations, I could hear clicks up and down the band for +/- several KHz. I though he had key clicks. Then I found a 2nd signal that produced the same results. Then a 3rd and a 4th. I suppose it is possible that all of them had issues with key clicks but it is also possible that I've hit a limit in the K2's ability to handle strong signals close in. All of the signals were strong. K2 doesn't do this as a rule on S9 signals. In fact, this is the first time I've noticed it so I'm going to say that signals 20 dB over S9 don't produce it (I'd have to double check that though). This makes me think it is an issue with only very strong signals. -- Keith, just for clarification, You say 30-40dB over S9 for 4 stations caused key clicks. Then in the second paragraph you say that signals 20dB over S9 don't produce it. I think you are saying that before you installed the KAF2 the 20dB over S9 signals did not have key clicks. Is that correct? If so why not take the KAF2 out of the circuit and see if that was the case? 73 john-n3drk ___ 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 receiver issues during contest?
On Tue, 2006-05-30 at 10:10 -0400, Darwin, Keith wrote: Hey folks, I noticed with one of these stations, I could hear clicks up and down the band for +/- several KHz. I though he had key clicks. Then I found a 2nd signal that produced the same results. Then a 3rd and a 4th. I suppose it is possible that all of them had issues with key clicks but it is also possible that I've hit a limit in the K2's ability to handle strong signals close in. Some popular rigs in use by contesters (in particular the 1000MP series) have very bad keyclicks unless modified http://www.w8ji.com/keyclicks.htm Unfortunately it is not uncommon at all to hear bad keyclicks during major contests The K2 receive performance is certainly up to contesting, I use my K2 in preference to my 756PRO2 for CW contesting as it hears better .brendan EI6IZ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] FREQUENCY COUNTER
I am doing the 4 MHz oscillator check and I can't seem to get a reading on the probe. Should I make note of this now or wait until I get into the 4 MHz counter calibration later in the build? Is there any other alternative to checking the calibration without using the probe that was supplied with the kit? BILL COCHRAN BILL COCHRAN REAL ESTATE APPRAISALS, LLC 1430 N 12TH STREET CAMBRIDGE, OHIO 43725 PHONE:740-439-7058 FAX: 740-236-1560 AMATEUR CALLSIGN: N8PGX ___ 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] FW: [ic7800] The 7800 as a QRP rig...a couple of observations
Interesting read. 10K$ for 3 watts Smile Philip LaMarche LaMarche Enterprises, Inc. www.instantgourmetspices.com www.W9DVM.com 727-944-3226 800-395-7795 pin 02 FAX 727-937-8834 NASFT # 30210 W9DVM -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Brad Johnson Sent: Tuesday, May 30, 2006 12:45 PM To: [EMAIL PROTECTED] Subject: [ic7800] The 7800 as a QRP rig...a couple of observations Even though I have had a Ten Tec Argo V and an Elecraft K1 in the shack as dedicated QRP rigs, I find myself switching to the 7800 during QRP events because of its superior filtering, noise reduction capabilities, and available computer interface options. It appears that the minimum power output of my 7800 is 3 watts, which is fine as I'm not interested in running less than 5 watts. Not surprisingly, the power output meter on the 7800 appears to be inaccurate at such low power settings. 5 watts output as measured by the OHR WM-2 QRP wattmeter into a dummy load does not illuminate any power output level bars on the 7800. However, 10 watts output measured on the WM-2 correlates with 10 watts indicated on the 7800's meter. Of course the WM-2 itself may be a little inaccurate. And as is stated in the manual, the 7800's auto antenna tuner will not work at power levels less than 8 watts on HF. I have one of the 7800's antenna ports dedicated to QRP operation and have the QRP wattmeter in line with that output, leading to a switch that selects between the various rigs in the shack. Everything is fine as long as I remember to switch antenna ports before going QRO with 200 watt, since the WM-2 will probably fry if it gets hit with more than 20 watts. It sure would be cool if you could set power output maximums in the antenna memories, but I imagine I'm the only one who has come up with a need for such a thing 73, Brad AA5CH Yahoo! Groups Sponsor ~-- Everything you need is one click away. Make Yahoo! your home page now. http://us.click.yahoo.com/AHchtC/4FxNAA/yQLSAA/ELTolB/TM ~- Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/ic7800/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ ___ 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] FW: [ic7800] The 7800 as a QRP rig...a couple of observations
This is cool. Hopefully some one will do a engineering comparison report of the IC-7800 vs the FT-9000D at 3-5 watts. Al W4ABW ___ 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] FW: [ic7800] The 7800 as a QRP rig...a couple of observations
While I own an IC-7800, I use my K2 for QRP contests, and my K1 and KX1 for more portable operations (though the K2 sometimes does duty there too). I have never missed my IC-7800 when using my K2; I have sometimes missed my K2 when using one of the K rigs, mostly a band issue. Phil LaMarche wrote: Interesting read. 10K$ for 3 watts Smile Philip LaMarche From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Brad Johnson Sent: Tuesday, May 30, 2006 12:45 PM To: [EMAIL PROTECTED] Subject: [ic7800] The 7800 as a QRP rig...a couple of observations Even though I have had a Ten Tec Argo V and an Elecraft K1 in the shack as dedicated QRP rigs, I find myself switching to the 7800 during QRP events because of its superior filtering, noise reduction capabilities, and available computer interface options. And those are what I like about my K2 as well... I am due to send my IC-7800 in for the upgrade, and I will miss it while it is gone though... 73 de Dave, W5SV snip ___ 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 receiver issues during contest?
I believe it is the TX side. Here's why: The SoftRock series of SDR kits are fun for looking at this. The receiver is extremely wide, on the order of 50KHz to 100KHz, depending on your version and sound card quality, so there really isn't anything analogous to the filtering artifacts you might see (though of course you can run out of dynamic range). At least I think this is the case. I have a SoftRock 40 and the Rocky software (sadly Windows only) offers a large waterfall display. You can read the CW as it scrolls horizontally. I see some signals with clicks, which show up as vertical bars on the CW signals, and some without. The vertical axis is frequency extent, so you can see just how wide they are, at a glance. Recent versions of the Rocky software include a visual key-click filter, which you can to turn on to clean up the waterfall. Leigh/WA5ZNU On Tue, 30 May 2006 8:09 am, Brendan Minish wrote: On Tue, 2006-05-30 at 10:10 -0400, Darwin, Keith wrote: Hey folks, I noticed with one of these stations, I could hear clicks up and down the band for +/- several KHz. I though he had key clicks. Then I found a 2nd signal that produced the same results. Then a 3rd and a 4th. I suppose it is possible that all of them had issues with key clicks but it is also possible that I've hit a limit in the K2's ability to handle strong signals close in. Some popular rigs in use by contesters (in particular the 1000MP series) have very bad keyclicks unless modified http://www.w8ji.com/keyclicks.htm Unfortunately it is not uncommon at all to hear bad keyclicks during major contests The K2 receive performance is certainly up to contesting, I use my K2 in preference to my 756PRO2 for CW contesting as it hears better .brendan EI6IZ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] RIT/XIT
There are several buttons on my K2 that are rarely (if ever) used - for instance, I never use RIT and XIT since split operation is available. I agree. I've never understood what problem XIT is intended to solve. Both RIT/XIT are completely unnecessary in a rig with split and I detest using that tiny knob in lieu of the Main VFO knob. Hi Bill Don, I like this feature and use it quite frequently. It comes in very handy in contests, particularly when folks call off your frequency. N1MM toggles RIT/XIT from the bandmap screen. I set mine RIT a bit off frequency and I can flip/flop back and forth to see if someone is calling a bit out of my window. It's also faster for hitting DX who are listening higher or lower than their simplex frequency. I generally only use the second VFO for the monster pileups where you can be 5 to 10 kHz away from the Tx station's frequency. Of course, I went without VFO B and used RIT/XIT more frequently in the past. I may be more comfortable with it. One of the guys at work, W4TD, built an outboard VFO for his K2. It's quite nice. Two features that I really like are a display of the VFO B frequency and a split LED. They both would keep idiots like me from making a mistake and Txing on the wrong frequency, because I thought I was/wasn't split and I'd know where I was Txing as well. I don't know how many devices you can hang on the serial port, before you start bogging the K2 and/or computer down. The outboard VFO sure is cute, but will have four devices daisy chained off the K2 port. Cheers, Julius n2wn ___ 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 and microphone testing
Hello! I've K2 with unmodified KSB2. Normally I use Heil headset with K2. During last days my genetic biological harmonics are behaving like termites. My headset is in danger all the day. So it was a time to put in into bookshelf for few months. I compared Yaesu MH31 and Kenwood MC43S with K2. The station I worked is near to me and he knows my natural voice. Settings were SSbC 1-1 and SSbA 3. He reported he didn't notice any difference between the microphones. Rolf Moberg oh6kxl ___ 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] #5371 alive on SSB !!
S58M 10102.2 J48PJ 1923 30 May IW8RQA14180.0 ZC4DG 5/9 1924 30 May F5NHJ-@ 18145.0 CT3MD1 QSO SSB K2#53711922 30 May PF7X 18070.1 A61Q 1922 30 May DH6BH-@ 14197.8 P49Y 1922 30 May DL1NUX28185.0 I8EMG/B JO50LE(ESJM89BJ 1922 30 May 1ST qso is done on 17 mts.. nice 59 from Madeira island .. MA5V and K2 #5371 jean louis ___ 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] K60XV Problem
Thanks Don. I think the VCO voltage is too low at 5000kHz. At 5300 kHz it reads 1.084 vdc on my Fluke 179. I will have to go back to the adjustment routine in the K2 manual and see if I can shift all the voltages enough. On my previous K2 it worked great at 5000kHz. The buzz saw sound to me is like hearing some internally generated low frequency and nothing else. The frequency changes a little bit when I attach the DMM lead to R30. Thanks for your help. Harvey KN6VP - Original Message - From: Don Wilhelm [EMAIL PROTECTED] To: Harvey Howell [EMAIL PROTECTED]; elecraft@mailman.qth.net Sent: Tuesday, May 30, 2006 7:23 AM Subject: RE: [Elecraft] K60XV Problem Harvey, Re-check the VCO range (voltage on the left end of R30), and be certain all the ands fall within the proper range. It is normal for the VCO voltage to become so small below 5300 kHz that the tuning will not continue on down to 5000 Hz. Also the response of the bandpass filter may fall off quite a bit at 5000 Hz which will reduce the ability to hear at that frequency. I cannot speak to your 'buzz-saw' - you will have to be more specific. 73, Don W3FPR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Harvey Howell Sent: Tuesday, May 30, 2006 9:53 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K60XV Problem Hello everyone. I installed a 60 meter board last night and it seems to have a problem. When I entered 5000 kHz I had what sounds like a loud oscillator sound on the audio. I turned on another radio and had WWV loud and clear at 5000 kHz in that radio. When I increase the frequency the oscillator sound goes away (maybe just beyond my hearing) and I hear a very faint sw station at 5070 kHz. Between 5070 kHz and 5300 kHz I can't hear the buzz saw and I adjusted the trimmers for max power out. I'm not getting any error messages on the display. So far I haven't found any visible assembly errors. Has anyone had this problem before? Any ideas what might be bad? On a previous K2 I built with this option I heard WWV right away at 5000 kHz. Thanks very much. Harvey KN6VP -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 5/29/2006 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 5/29/2006 ___ 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] K60XV Problem
Did you change the D19 parameter? Just my 1st thought... Good luck! Sjoerd PE2SVN -Oorspronkelijk bericht- Van: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Namens Harvey Howell Verzonden: dinsdag 30 mei 2006 22:33 Aan: [EMAIL PROTECTED]; elecraft@mailman.qth.net Onderwerp: Re: [Elecraft] K60XV Problem Thanks Don. I think the VCO voltage is too low at 5000kHz. At 5300 kHz it reads 1.084 vdc on my Fluke 179. I will have to go back to the adjustment routine in the K2 manual and see if I can shift all the voltages enough. On my previous K2 it worked great at 5000kHz. The buzz saw sound to me is like hearing some internally generated low frequency and nothing else. The frequency changes a little bit when I attach the DMM lead to R30. Thanks for your help. Harvey KN6VP - Original Message - From: Don Wilhelm [EMAIL PROTECTED] To: Harvey Howell [EMAIL PROTECTED]; elecraft@mailman.qth.net Sent: Tuesday, May 30, 2006 7:23 AM Subject: RE: [Elecraft] K60XV Problem Harvey, Re-check the VCO range (voltage on the left end of R30), and be certain all the ands fall within the proper range. It is normal for the VCO voltage to become so small below 5300 kHz that the tuning will not continue on down to 5000 Hz. Also the response of the bandpass filter may fall off quite a bit at 5000 Hz which will reduce the ability to hear at that frequency. I cannot speak to your 'buzz-saw' - you will have to be more specific. 73, Don W3FPR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Harvey Howell Sent: Tuesday, May 30, 2006 9:53 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K60XV Problem Hello everyone. I installed a 60 meter board last night and it seems to have a problem. When I entered 5000 kHz I had what sounds like a loud oscillator sound on the audio. I turned on another radio and had WWV loud and clear at 5000 kHz in that radio. When I increase the frequency the oscillator sound goes away (maybe just beyond my hearing) and I hear a very faint sw station at 5070 kHz. Between 5070 kHz and 5300 kHz I can't hear the buzz saw and I adjusted the trimmers for max power out. I'm not getting any error messages on the display. So far I haven't found any visible assembly errors. Has anyone had this problem before? Any ideas what might be bad? On a previous K2 I built with this option I heard WWV right away at 5000 kHz. Thanks very much. Harvey KN6VP -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 5/29/2006 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 5/29/2006 ___ 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] K60XV Problem
Harvey, I found that I could adjust the VCO voltage to keep the VCO in lock at 5MHz -- however, I have yet to copy WWV at 5MHz. And, I did get that 'buzz saw' sound when the VCO is not in lock. Good luck -- if you find you can copy WWV at 5M, please let me know about it. Mark On 5/30/06, Harvey Howell [EMAIL PROTECTED] wrote: Thanks Don. I think the VCO voltage is too low at 5000kHz. At 5300 kHz it reads 1.084 vdc on my Fluke 179. I will have to go back to the adjustment routine in the K2 manual and see if I can shift all the voltages enough. On my previous K2 it worked great at 5000kHz. The buzz saw sound to me is like hearing some internally generated low frequency and nothing else. The frequency changes a little bit when I attach the DMM lead to R30. Thanks for your help. Harvey KN6VP - Original Message - From: Don Wilhelm [EMAIL PROTECTED] To: Harvey Howell [EMAIL PROTECTED]; elecraft@mailman.qth.net Sent: Tuesday, May 30, 2006 7:23 AM Subject: RE: [Elecraft] K60XV Problem Harvey, Re-check the VCO range (voltage on the left end of R30), and be certain all the ands fall within the proper range. It is normal for the VCO voltage to become so small below 5300 kHz that the tuning will not continue on down to 5000 Hz. Also the response of the bandpass filter may fall off quite a bit at 5000 Hz which will reduce the ability to hear at that frequency. I cannot speak to your 'buzz-saw' - you will have to be more specific. 73, Don W3FPR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Harvey Howell Sent: Tuesday, May 30, 2006 9:53 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K60XV Problem Hello everyone. I installed a 60 meter board last night and it seems to have a problem. When I entered 5000 kHz I had what sounds like a loud oscillator sound on the audio. I turned on another radio and had WWV loud and clear at 5000 kHz in that radio. When I increase the frequency the oscillator sound goes away (maybe just beyond my hearing) and I hear a very faint sw station at 5070 kHz. Between 5070 kHz and 5300 kHz I can't hear the buzz saw and I adjusted the trimmers for max power out. I'm not getting any error messages on the display. So far I haven't found any visible assembly errors. Has anyone had this problem before? Any ideas what might be bad? On a previous K2 I built with this option I heard WWV right away at 5000 kHz. Thanks very much. Harvey KN6VP -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 5/29/2006 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 5/29/2006 ___ 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] K2 FOR SALE
On Tue, 30 May 2006, BILL COCHRAN wrote: Well, my luck has run out and I thought I could finish the K2. Everything was fine, until I couldn't hold onto the soldering iron anymore. Bill, that is no reason NOT to have a K2. I have a condition that prevents me from building, but through the good offices of Alan - W1HYV, who is on this list, I have a K2 that Alan built for me. Do I feel bad that I couldn't build it? Yes. Do I feed bad that I had someone else build it because I couldn't? No. There are LOTs of folks on the list and listed at the Elecraft site that will build the Elecraft kits for those that can't...and some of them don't charge, because they enjoy building and do a service for those that can not build. I would hope that by now you've gotten email from builders who can helpand if you haven't, askyou will get your K2 built. 73,Thom-k3hrn www.zerobeat.net Home of QRP Web Ring, Drakelist home page,Drake Web Ring, QRP IRC channel, Drake IRC Channel, Elecraft Owners Database www.tlchost.net/hosting/ *** Web Hosting as low as 3.49/month ___ 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 power meter question, again
Chris, It is likely not a firmware issue, but a problem with calibration - the adjustment of the trimmer cap is critical. I can give you a 'non-Elecraft manual' method to calibrate the KAT2 wattmeter. If you want to be assurred of a proper trimmer cap setting, make up a 100 ohm and a 25 ohm dummy load - they do not need to be high wattage if you are careful with the power output while using them - a couple watts is sufficient. Then alternately connect the two dummy loads (KAT2 set for CALS) and observe the reported SWR for each - if the reported SWR is not the same for both of these loads, the trimmer is not balanced - tweak it a bit and repeat (repeat as many times as necessary until the SWR readings are the same). After getting both loads to report the same SWR, then set the Reflected pot to indicate a 2.0 SWR with both loads (OK, 1.9 to 2.1 will likely be OK, but shoot for the 2.0 value) - you may have to touch up the trimmer during this process. After you have completed the trimmer adjustment and reflected pot adjustment as above, then set the forward pot to indicate the proper power output with a good 50 ohm dummy load (KAT2 set for CALP). If you have two 50 ohm dummy loads, you can create a 25 ohm load easily by connecting them in parallel (easy with a Coax Tee coupling), and the 100 ohm load can be created by connecting the 2 loads in series. Keep the lead lengths to a minimum becaus a substantial length of coax will have transmission line transormation effects - yes, even a couple feet will make a difference at 7 MHz. Once you have calibrated the power output as above, you still may see some fluctuation of power in TUNE - the firmware decreases the amount of power level control so you can tune an external tuner without the power drifting all over the place. The keyed output will be more steady (and accurate) than TUNE with the KAT100 in Pout state. 73, Don W3FPR -Original Message- A similar topic came up a few months back, but I can't find an answer to my question in the archives. I have a QRP K2 with KAT2, running to a Hustler vertical (which is not purely resistive - typically has C=6 R=40, more or less). I have noticed recently that the LED power bargraph shows more than 5 (lights the next segment) when I have the power set to 5.0. Using the ATU's Pout mode, it tells me about 5.8 - 6.1 F ... I'm wondering why the K2 isn't controlling the power better? Or is this as close as it gets? I notice that if I turn on TUNE and adjust POWER to bring the output down a bit (back to about 5.0, it's pretty jumpy), then the power out seems to get back in sync, for a while - but not for long. I'm not particularly concerned with how accurate the Pout is - last time I checked, I had calibrated it reasonably well. I'm concerned about the difference between what I dial in and what the K2 itself measures. Does this sound at all familiar? It almost feels like a firmware issue. I have 2.03d 1.07. 73 de chris K6DBG ___ 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] 9th Annual QRP TAC Sprint June 3, 2006
Hello, This Saturday, June 3rd, is the 9th Annual QRP TAC Sprint. We are turning back the clocks to the CW Only Sprint due to the lack of any SSB or PSK31 contacts last year. So the contest will be CW only. Look for WB3AAL out on the Appalachian Trail. If you find me and work me from the AT you will also work the bonus Station, N3EPA from the AT. I will be working the two calls from the AT. I will be looking for anyone that will be on the Appalachian Trail in the States of MA or ME. I need a Trail to Trail QSO with those States. I will also be looking for the following States for WAS from the AT. The states are AZ, NM, OR, MT, ND, SD and HI. So if you hear me on 20 or 15 meters, please give me a call. I know the LAITF contest is in the same time, so if you want to pass a critter name, please send LAITF at the end of the TAC Sprint info and the critter name. This will be the last year for the TAC Sprint to be held in June. We are going to move to another colder month. 72 and Thanks, Ron Polityka WB3AAL www.wb3aal.com www.n3epa.org/ K1 - SN 01011 K2 - SN 01392 ___ 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] CW Tuning Kit
Just built mine (after it sat around for about two years). My first attempt at SMD, a great first project - really a lot of fun. I Still haven't installed it yet, though. Thanks to Tom N0SS for a great little kit - and useful too! Tom WB2QDG K2 1103 -- Teamwork is a lot of people doing what I say. - Original Message - From: Fred Bergsma [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Monday, May 29, 2006 6:51 PM Subject: [Elecraft] CW Tuning Kit For Sale Tom N0SS CW tuning Kit---$18.00US. (original price paid) Ordered but never built. Still in kit form. Please reply offline Fred VE3CLS ___ 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] K60XV Problem
Yes, thanks Sjoerd. Harvey KN6VP - Original Message - From: Sjoerd [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Tuesday, May 30, 2006 1:44 PM Subject: RE: [Elecraft] K60XV Problem Did you change the D19 parameter? Just my 1st thought... Good luck! Sjoerd PE2SVN -Oorspronkelijk bericht- Van: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Namens Harvey Howell Verzonden: dinsdag 30 mei 2006 22:33 Aan: [EMAIL PROTECTED]; elecraft@mailman.qth.net Onderwerp: Re: [Elecraft] K60XV Problem Thanks Don. I think the VCO voltage is too low at 5000kHz. At 5300 kHz it reads 1.084 vdc on my Fluke 179. I will have to go back to the adjustment routine in the K2 manual and see if I can shift all the voltages enough. On my previous K2 it worked great at 5000kHz. The buzz saw sound to me is like hearing some internally generated low frequency and nothing else. The frequency changes a little bit when I attach the DMM lead to R30. Thanks for your help. Harvey KN6VP - Original Message - From: Don Wilhelm [EMAIL PROTECTED] To: Harvey Howell [EMAIL PROTECTED]; elecraft@mailman.qth.net Sent: Tuesday, May 30, 2006 7:23 AM Subject: RE: [Elecraft] K60XV Problem Harvey, Re-check the VCO range (voltage on the left end of R30), and be certain all the ands fall within the proper range. It is normal for the VCO voltage to become so small below 5300 kHz that the tuning will not continue on down to 5000 Hz. Also the response of the bandpass filter may fall off quite a bit at 5000 Hz which will reduce the ability to hear at that frequency. I cannot speak to your 'buzz-saw' - you will have to be more specific. 73, Don W3FPR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Harvey Howell Sent: Tuesday, May 30, 2006 9:53 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K60XV Problem Hello everyone. I installed a 60 meter board last night and it seems to have a problem. When I entered 5000 kHz I had what sounds like a loud oscillator sound on the audio. I turned on another radio and had WWV loud and clear at 5000 kHz in that radio. When I increase the frequency the oscillator sound goes away (maybe just beyond my hearing) and I hear a very faint sw station at 5070 kHz. Between 5070 kHz and 5300 kHz I can't hear the buzz saw and I adjusted the trimmers for max power out. I'm not getting any error messages on the display. So far I haven't found any visible assembly errors. Has anyone had this problem before? Any ideas what might be bad? On a previous K2 I built with this option I heard WWV right away at 5000 kHz. Thanks very much. Harvey KN6VP -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 5/29/2006 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 5/29/2006 ___ 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 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 5/29/2006 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 5/29/2006 ___ 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] 9th Annual QRP TAC Sprint June 3, 2006
Hello, Sorry, I forgot to say that all TAC Sprint rules and information can be found at www.n3epa.org . All those that won divisions in the 2005 TAC Sprint, sorry but I am late getting your certificates out to you for last year. You will find them in the mail in a few weeks. Don't forget there is an award for the State or Country High Score. Remember to send me the entry form and the log, I can do the calculations for you. ___ 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] K60XV Problem
Thanks Mark. My other K2, S/N 5022 receives WWV on 5000 kHz real good. This one is S/N 5404. Last night I tuned my Sony 2010 receiver to 5000 kHz and it almost pegged the meter...the path just happened to be open. I'll let you know if I am able to get this rig to do it. Harvey KN6VP - Original Message - From: Mark Bayern [EMAIL PROTECTED] To: Harvey Howell [EMAIL PROTECTED] Cc: [EMAIL PROTECTED]; elecraft@mailman.qth.net Sent: Tuesday, May 30, 2006 2:11 PM Subject: Re: [Elecraft] K60XV Problem Harvey, I found that I could adjust the VCO voltage to keep the VCO in lock at 5MHz -- however, I have yet to copy WWV at 5MHz. And, I did get that 'buzz saw' sound when the VCO is not in lock. Good luck -- if you find you can copy WWV at 5M, please let me know about it. Mark On 5/30/06, Harvey Howell [EMAIL PROTECTED] wrote: Thanks Don. I think the VCO voltage is too low at 5000kHz. At 5300 kHz it reads 1.084 vdc on my Fluke 179. I will have to go back to the adjustment routine in the K2 manual and see if I can shift all the voltages enough. On my previous K2 it worked great at 5000kHz. The buzz saw sound to me is like hearing some internally generated low frequency and nothing else. The frequency changes a little bit when I attach the DMM lead to R30. Thanks for your help. Harvey KN6VP - Original Message - From: Don Wilhelm [EMAIL PROTECTED] To: Harvey Howell [EMAIL PROTECTED]; elecraft@mailman.qth.net Sent: Tuesday, May 30, 2006 7:23 AM Subject: RE: [Elecraft] K60XV Problem Harvey, Re-check the VCO range (voltage on the left end of R30), and be certain all the ands fall within the proper range. It is normal for the VCO voltage to become so small below 5300 kHz that the tuning will not continue on down to 5000 Hz. Also the response of the bandpass filter may fall off quite a bit at 5000 Hz which will reduce the ability to hear at that frequency. I cannot speak to your 'buzz-saw' - you will have to be more specific. 73, Don W3FPR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Harvey Howell Sent: Tuesday, May 30, 2006 9:53 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K60XV Problem Hello everyone. I installed a 60 meter board last night and it seems to have a problem. When I entered 5000 kHz I had what sounds like a loud oscillator sound on the audio. I turned on another radio and had WWV loud and clear at 5000 kHz in that radio. When I increase the frequency the oscillator sound goes away (maybe just beyond my hearing) and I hear a very faint sw station at 5070 kHz. Between 5070 kHz and 5300 kHz I can't hear the buzz saw and I adjusted the trimmers for max power out. I'm not getting any error messages on the display. So far I haven't found any visible assembly errors. Has anyone had this problem before? Any ideas what might be bad? On a previous K2 I built with this option I heard WWV right away at 5000 kHz. Thanks very much. Harvey KN6VP -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 5/29/2006 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 5/29/2006 ___ 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 Free Edition. Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 5/29/2006 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 5/29/2006 ___ 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 receiver issues during contest?
On May 30, 2006, at 10:10 AM, Darwin, Keith wrote: On 40 CW, there were some strong signals to my 28' vertical. 30-40 dB over S9 was not uncommon. I noticed with one of these stations, I could hear clicks up and down the band for +/- several KHz. It is quite possible that this guy had clicks. The K2, as designed, has excellent rejection of adjacent signals. Sure, you'll have some cross-over from nearby adjacent signals, but the results are way down from radios costing thousands more. All of the signals were strong. K2 doesn't do this as a rule on S9 signals. In fact, this is the first time I've noticed it so I'm going to say that signals 20 dB over S9 don't produce it (I'd have to double check that though). This makes me think it is an issue with only very strong signals. You'll definitely notice more of this adjacent signal problem on really, really strong signals. Narrowing the IF filter helped. Engaging the attenuator helped. If turning off the preamp or adding the attenuator eliminates the clicks, most likely the are being generated by overloads within the K2. These must be EXTREMELY strong signals to do this. So does this sound like normal fare for the K2 or does it sound like an issue? I didn't have this problem with my K2 this weekend, but I may not have tuned across the same signals you did. Bill Coleman, AA4LR, PP-ASELMail: [EMAIL PROTECTED] Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 ___ 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] K60XV Problem
Don, I adjusted the VCO range and ended up with 0.551 vdc at 5000 kHz on the meter and I can now receive WWV at 5000 kHz. Apparently thats enough voltage to work. What I did was adjust L30 so the voltage at 4000 kHz went from 6.52 vdc to 7.35 vdc. All voltages are between 2.715 vdc and 7.350 vdc on the meter. Harvey KN6VP - Original Message - From: Don Wilhelm [EMAIL PROTECTED] To: Harvey Howell [EMAIL PROTECTED]; elecraft@mailman.qth.net Sent: Tuesday, May 30, 2006 7:23 AM Subject: RE: [Elecraft] K60XV Problem Harvey, Re-check the VCO range (voltage on the left end of R30), and be certain all the ands fall within the proper range. It is normal for the VCO voltage to become so small below 5300 kHz that the tuning will not continue on down to 5000 Hz. Also the response of the bandpass filter may fall off quite a bit at 5000 Hz which will reduce the ability to hear at that frequency. I cannot speak to your 'buzz-saw' - you will have to be more specific. 73, Don W3FPR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Harvey Howell Sent: Tuesday, May 30, 2006 9:53 AM To: elecraft@mailman.qth.net Subject: [Elecraft] K60XV Problem Hello everyone. I installed a 60 meter board last night and it seems to have a problem. When I entered 5000 kHz I had what sounds like a loud oscillator sound on the audio. I turned on another radio and had WWV loud and clear at 5000 kHz in that radio. When I increase the frequency the oscillator sound goes away (maybe just beyond my hearing) and I hear a very faint sw station at 5070 kHz. Between 5070 kHz and 5300 kHz I can't hear the buzz saw and I adjusted the trimmers for max power out. I'm not getting any error messages on the display. So far I haven't found any visible assembly errors. Has anyone had this problem before? Any ideas what might be bad? On a previous K2 I built with this option I heard WWV right away at 5000 kHz. Thanks very much. Harvey KN6VP -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 5/29/2006 -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.394 / Virus Database: 268.8.0/352 - Release Date: 5/30/2006 ___ 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
