[Elecraft] a long shot
I have spent a day trying to configure my Mac PowerBook G4 via a RIGblaster plus to key my K2 for CW transmission. The program I am using is MultiMode v 5.4.0 The RIGblaster is jumper configured for Elecraft. I have tried transmitting by the Key Out on the RIGblaster to Key on the K2, and also using the microphone input through the RIGblaster. No luck either way. Receiving is no problem. Transmit is the rub. I have read the notes from the MultiMode web site (carefully, I think) but no joy. There is one somewhat grey area for me and that is in regard the port setting in preferences in MultiMode. As I said in the subject line, this is a long shot, but I thought that somewhere out in that wonderful knowledge base known as the Elecraft reflector there just might be someone who has my answer and can tell me what I overlooked. Even this temporary setback cannot dim my pleasure with the K2. Slater VE5OA K2 - 4519 ___ 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] K1 #1992 has arrived in Norway!
Will have a lot of pleasure in building this one! 4 band version, as well as the 2-band filter module and the KNB-1 noise blanker. Will eventually add the autotuner in a later stage. I recently completed the KX1 with all options, so I know I´ll have a ball building the K1! Hans / LA2MOA *The World´s Too Small For QRO* ___ 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] long shot the second
Wouldn't you know it. Five minutes after posting the other message, I figured it out. Sorry to waste the space. Slater VE5OA K2 - 4519 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Re: long shot the second
Hello Slater, Wouldn't you know it. Five minutes after posting the other message, I figured it out. What was the solution? -- 72/73 de Ingo, DK3RED Don't forget: the fun is the power! [EMAIL PROTECTED] www.dk3red.homepage.t-online.de DL-QRP-AG #824 www.dl-qrp-ag.de QRP ARCI #11295 www.qrparci.org ___ 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] Gary Surrency's Top Ten List of Kit Failures
For those of you building an Elecraft Kit or thinking about building a kit, suggested reading is the text file Top Ten List of Kit Failures, by Gary Surrency, AB7MY. As far as I know it was never included in the new kit literature (it should be) and not sure if it is on the Web site for Elecraft. It might be down several layers and hard to find... If you need a copy, E-mail to [EMAIL PROTECTED] and type a Subject of Top Ten, and I'll send you a copy. Ken N4SO Mobile, Alabama EM50tk [EMAIL PROTECTED] _ Express yourself instantly with MSN Messenger! Download today - it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/ ___ 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] Top Ten list
http://www.elecraft.com/Apps/gary's_top_10.htm Ken N4SO Mobile, Alabama EM50tk [EMAIL PROTECTED] _ Express yourself instantly with MSN Messenger! Download today - it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/ ___ 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] Saturday's 'new' news ???
Hello. I was there yesterday at the Radiofest in Seaside. The product shown and talked given was the T1 smallest stand alone autotuner. Just like the picture put out by the Norcal web page. I can't seem to come away from the Elecraft booth empty handed so a BL1 Balun took the ride home with me take care. Dave G. wrote: OK folks, It's nearly Sunday (30 minutes to go) For the benefit of the majority that DIDN'T manage to get to the HamFest... What is the new product ??? Pretty Please ??? Dave KK7SS ___ 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 -- 73 Fernando N2FQ/NNNØJYM San Jose, CA http://pages.sbcglobal.net/n2fq ___ 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] EPA QRP Club Polar Bear QSls Rx to Date
Hello all, Here's a list with all the QSLs I have received to date requesting a certificate. If you made a contact and you don't see your call, please email me. If you want to order a hat, email me. Once I receive all the requests, I'll send out an email to all the individuals with the info and send out the certificates. Polar Bears will receive an activator certificate with your Polar Bear Number on it. 1. W2MY/5 2. K4JSI 3. W2GIW 4. W3DCG 5. AB9V 6. K2PQ 7. WA7BRL 8. W9HZC 9. VE3WMB 10. N2CQ 11. W1RT Polar Bear Hat Request: K3YTR, NK8Q, WB3AAL, W3DCG WA3WSJ 72, Ed, WA3WSJ ___ 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] gary's top ten
The proper url is http://www.elecraft.com/Apps/gary's_top_10.htm 72/71 rc kc5wa ___ 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] Birdies on 20m
Hello all, my new k2 (4691)is ready and i had some qso,s with it. I have some birdies on the 20m-band, at 14030, 14151, 14211, 14272 and a very strong with s6 at 14363 . What is to do, to avoid them or to bring them in a range out of band? Thanks for your ideas! Michael, DC0ZO ___ 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] KPA100 audio problem
I assembled my kpa100 during the week, what a nice experience! The functional operation of it is fine, aligned well, tx audio is good, temp, etc. all fine. The problem I am experiencing is with the audio. If I plug the audio cable only into the k2, audio is as good as the original. But if I plug either the 12v line or the rf line, it sounds very tinny and distorted. When I connected the speaker plug from the orginal k2 top and then plugged in the 12v and rf line from the kpa100, no audio distortion. I assumed I might have wired my speaker backwards, but even with both connections free from the kpa100 speaker, it distorts whenever I plug in the 12v and/or rf cable. So its something on the kpa board itself. The problem is there really is not much in terms of audio circuitry on the KPA. Any ideas? 73 de Neal ___ 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] QRP... first real test !!!
Hi, For all who wish to see my portable setup unsing my Buddipole running QRP @ 5W on the QRP Quebec Net Just visit my fresh photos... http://homepage.mac.com/jfmenard/PhotoAlbum46.html 73 === Jean-François Ménard / VA2VYZ Elecraft K2 #4130 / KX1 #999 http://homepage.mac.com/jfmenard ===___ 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] KPA100 audio problem
Neal, Try plugging an external speaker into the KPA100 external speaker jack - if my guess is right, you will find the same behavior on that speaker too, and will confirm my speculation that you have the wires on the AF cable reversed. Do check the orientation of the wires from the AF jack to the KPA100 board. The side of the cable closest to the right side panel (when the jack is plugged in) should end up at the 'AF' pad on the KPA100 board. Note that the 'copper/silver' conductor usage specified in the KPA100 is opposite that used in the base K2. It sounds like you have them reversed and you are shorting out some of the audio when you plug in the ground connections on either of the 12 VDC of RF connectors. If the cable wiring is not the problem, I think you should be looking for a solder bridge from the AF line to something else on the KPA100 board. You are correct, there is not much to the speaker wiring on the KPA100 board - just signal traces and the external speaker jack. 73, Don W3FPR -Original Message- I assembled my kpa100 during the week, what a nice experience! The functional operation of it is fine, aligned well, tx audio is good, temp, etc. all fine. The problem I am experiencing is with the audio. If I plug the audio cable only into the k2, audio is as good as the original. But if I plug either the 12v line or the rf line, it sounds very tinny and distorted. When I connected the speaker plug from the orginal k2 top and then plugged in the 12v and rf line from the kpa100, no audio distortion. I assumed I might have wired my speaker backwards, but even with both connections free from the kpa100 speaker, it distorts whenever I plug in the 12v and/or rf cable. So its something on the kpa board itself. The problem is there really is not much in terms of audio circuitry on the KPA. Any ideas? 73 de Neal ___ 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] Update: K2 # 0771
Elderly, but mojo-filled and fully loaded K2 #0771 has received new updates of T1 and T2 from the Toroid Guy, and new crystals in both the SSB and CW filters. Results? A fabulous radio made even better ... which is mighty hard to believe, but it's so. Better stop-band rejection, better inter-filter tonal matching on CW, lower passband loss, nicer sounding SSB. Also, touching up T1 and T2 (especially, mounting T2 slightly elevated form the board) improved TX efficiency by over 20%. This radio was built in 1999 and is STILL getting better! I have had, and have sold, no less than eleven rigs in the time I've had this Elecraft, including two IC756 family rigs and an Omni VI+. I *defy* anyone to show me another exmaple of continuous radio improvement (without total radio relacement) happening elsewhere in hamdom, ever since the Signal*One. I may be preaching to the choir here on this reflector, but I'll say it to anyone willing to listen: if you are not yet a K2 user, you are simply NOT getting all the enjoyment out of the hobby that you could. Moreover, a brand-new K2 costs LESS than just the FIRST YEAR DEPRECIATION of any rig that is a close peer in performance. __ Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone. http://mobile.yahoo.com/maildemo ___ 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] Update: K2 # 0771
Due to the huge number of projects I'm in the middle of, I decided I don't have time to build a kit, so I bought a used K2, serial # 568. It already has some updates, and it will cost me about $100 to add the remaining updates and mods I think are important. That's amazing. The first thing I will do is the 2nd filter passband flattening mod, since I have the parts in my junlbox to do that. The different tonal quality between usb and lsb is one of the few things that bugged me about by new acquisition. In the process of looking at the passband shape using an older (free) version of the Spectrogram program, I decided to take a look at it using the spectrum display in MixW and Hamscope... two PSK programs I have. Of the three programs, I definitely like MixW the best, Spectrogram 2nd best and Hamscope the least (because it doesn't have markers... at least in my version). MixW is fast, has good dynamic range and allows for up to four markers. Now that Sprectrogram is no longer free, I thought I would point this option out to folks who happen to have these other programs. BTW, I was able to get more than adequate noise signal by cascading a couple external broadband preamps I have on hand. Larry N8LP Steve Jackson wrote: Elderly, but mojo-filled and fully loaded K2 #0771 has received new updates of T1 and T2 from the Toroid Guy, and new crystals in both the SSB and CW filters. Results? A fabulous radio made even better ... which is mighty hard to believe, but it's so. Better stop-band rejection, better inter-filter tonal matching on CW, lower passband loss, nicer sounding SSB. Also, touching up T1 and T2 (especially, mounting T2 slightly elevated form the board) improved TX efficiency by over 20%. This radio was built in 1999 and is STILL getting better! I have had, and have sold, no less than eleven rigs in the time I've had this Elecraft, including two IC756 family rigs and an Omni VI+. I *defy* anyone to show me another exmaple of continuous radio improvement (without total radio relacement) happening elsewhere in hamdom, ever since the Signal*One. I may be preaching to the choir here on this reflector, but I'll say it to anyone willing to listen: if you are not yet a K2 user, you are simply NOT getting all the enjoyment out of the hobby that you could. Moreover, a brand-new K2 costs LESS than just the FIRST YEAR DEPRECIATION of any rig that is a close peer in performance. __ Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone. http://mobile.yahoo.com/maildemo ___ 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] 20m ECN 28 Feb 05Z
N0SS was 40 over on both the K2 and TS850 -- tks for the QNI. As is usual between Portland and No. Cal on 20m at Z, Kevin was about 219, as was I for him, I'm sure. I took a chance and split the antenna for receive into both the K2 and TS-850, whose receiver isn't all that shabby. I could hear Kevin and the really weak ones on the 850 ... I could copy some of them on the K2. Fairly impressive test, at least for me. If anyone is around on 20, 30, and 40 on Fri 3/4, I will be in Tuscon at the pool at the Airport Holiday Inn during the day with my KX1 signing /7. I have a new Nikon Coolpix digital camera, and I am sort of hoping to conjure up QSL card of some sort as I learn to use it. I believe it might be the WAPSIT award (Worked All Pool Side In Tuscon. 73, Fred K6DGW Auburn CA CM98lw K2 #4398 KX1 #897 ___ 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 Assembly part 3 check: Power output on transmit varies
Well, it's all put together and I'm running through the checks. Everything seems to be fine, except for one thing - the power output is inconsistent on transmit. It doesn't fluctuate much once it starts, but it starts at different levels. For example, when you set the power level to 2 watts, maybe one out of 5 times it will transmit 1.9 or 2.0 watts when you push the tune button. Other times, it will transmit 2.5, 3.0, maybe even 4.0 watts, and hold it pretty consistent (+-.1 watt) for the few seconds I hold it in tune into a dummy load. Wherever the watt meter shows, it corresponds on the MFJ dummy load, so the power is going into the dummy load... it just doesn't seem to reliably put out the right amount of power. So when I do the amp checks for 5 watts, it reads high, because it will actually be putting out usually 6 or 7 watts. So it isn't drawing too much current, per se, it's just that the output doesn't correspond reliably with the power setting. Usually it is 1 to 2 watts higher than the power setting, but just to be confusing, every so often it is exactly right... rarely, it may be low, but will again be stable... or climb slowly. On the positive side, the receiver seems to work good. With good advice offered here, I picked up the XG1 signal generator and the noise generator. I'm going to pick up Spectragram and re-do the filters. With the XG1 I can pick up the 28.160 harmonic, even with the attenuator on... it's extremely quiet, but it is still barely detectable. All the controls seem to work, the peaking of the various inductors and caps seems to go as it should. I've looked closely at all the toroids in the XMTR section, and even re-did T2, because the leads didn't look the best. Same problem. I've checked the toroids for continuity by touching the pad, and not the wire, to verify that the leads are conducting through the pads. Could this possibly be a I/O Controller issue? When it gets the power level correct, I notice that there sometimes is a very quick blip at transmit - for example, I'll have the power level set at 2.0 watts, and it will say something like 4.0 watts for just a tiny fraction of a second, then immediately stabilize at 1.9 watts... so it's as if it sometimes jumps in and corrects the power level correctly, and other times lets it go wherever it starts.. .usually not too high, no HI CURRENT problems at the 2 and 5 watt level, but the power out seems to be 1 to 2 watts higher than the power setting... but not always. Thanks again. I enjoyed listening a bit to the bands, I'm getting close now... probably could use it like this, but I'll wait until I get things all set up right. Vic KG4HTT ___ 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 Assembly part 3 check: Power output on transmit varies
Vic, KG4HTT wrote: verything seems to be fine, except for one thing - the power output is inconsistent on transmit. It doesn't fluctuate much once it starts, but it starts at different levels. For example, when you set the power level to 2 watts, maybe one out of 5 times it will transmit 1.9 or 2.0 watts when you push the tune button. Other times, it will transmit 2.5, 3.0, maybe even 4.0 watts, and hold it pretty consistent (+-.1 watt) for the few seconds I hold it in tune into a dummy load. Wherever the watt meter shows, it corresponds on the MFJ dummy load, so the power is going into the dummy load... it just doesn't seem to reliably put out the right amount of power. That's because in TUNE the power control circuitry in the K2 is disabled, Vic. The power will jump all over the place based on several things, including the load. Key the rig in CW if you want to see the power stay stable. Still, it'll shift a little bit as the finals warm up. That brings up another point that surprises ops sometimes. The K2 sets the output power by measuring the RF voltage delivered to the load, compares it with the power level you have requested with the POWER control, and adjusts the gain of the transmitter circuits accordingly. So, when you first key up the rig after turning the power on or after adjusting the POWER setting, it will NOT produce the expected power for a moment until the circuit has a chance to monitor the power out and adjust the level accordingly. When doing a Power On, the default is minimum output. That means that after turning on the rig, if you hit the key you might see a short delay before the RF appears. It might be enough to lose several dits if you are starting with dits on the key. Same is true when you change the POWER setting. If you turn it up or down, the first few dits or part of a dash will be at the original higher power before the circuits react. Also, since the power is monitored by an RF voltmeter, the accuracy of the power display is based on the accuracy of the load. The closer it is to 50 ohms non-reactive, the better the power accuracy. Ron AC7AC ___ 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] The audio filter
On Feb 26, 2005, at 10:55 PM, [EMAIL PROTECTED] wrote: It might be impossible to do even if I mod it. I simply want to lower the noise floor. The noise floor is low. However I wanted to try to get it to sound like a TR-7's noise floor. Looking at the reviews in QST - the noise floor on the TR-7 was measured at -133 dBm on both 80m and 20m. The noise floor on the K2 was measured at -137 dBm on 80m, and -138 dBm on 20m. So, you're saying you want to WORSEN the noise floor by 4-5 dB? The noise floor is low enough on either rig that atmospheric noise should dominate the receiver, at least 20m and below. 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] Elecraft CW Net Report for February 27-28,2005
Wow, great turn out folks to set a NEW RECORD. 33 checks total for both nets! We also had four NCS folks running the net: N0SS, Tom; W0NTA, Dick; K1EV, Bill; plus yours truly. Made for a lot of interesting signal passing. I tried to get Rick and Bert hooked up again. I could hear both of them and so could Tom. I know they did not quite make contact during the net but I know they would try afterward. I hope they got it done so Bert can claim WAS. We did not get any new states tonight but there were a number of new faces. Seven of them to be exact. Conditions were interesting because I could hear the East Coast rather well while they were just hopping over Tom in Missouri. Then I got a fill on a serial number from Dick for Tim in Michigan. Ric's K1 was booming into Oregon at S8 levels while Rick's KX1 was doing very, very well with S5 to S7 levels. Both Tom and Bill, K1EV were at painful levels for me so I need to get a faster finger on the RF gain! 40 meters was noisy but we still had quite a turnout there. Twelve folks and four of them new to the net. The best one was a Tuna Tin 2 from Virgina. Tom caught the particulars but I got about half copy on Bob's mighty 150 mW! If the noise had been lower copy would have been fine. It was not his rig but the QRN. Great job guys. On 14050 kHz at 2355z: N0SS - Tom - MO - K2 - 008 N4SO - Ken - AL - K2 - 3394 KL7CW - Rick - AK - KX1 - 798 WA2SI - Bert - NY - K1 - 1337 W0CZ - Ken - ND - K2 - 1031 W0NTA - Dick - CO - K2 - 3900 QRP N9IV - Russ - IN - K2 - 4652 K2HYD - Ray - VA - KX1 - 608 K6DGW - Fred - CA - K2 - 4398 N7NLU - Karl - OR - K2 - 4227 VE3XL - Ric - ON - K1 - 968 N1EA - David - MA - Icom 756 W7WEL - Bill - ID - K2 - 4001 W1TF - Ty - GA - K1 - 1423 VE1RGB - Gary - NS - K2 - 2519 K8NWD - Tim - MI - K2 - 076 W0QQS - Bruce - MN - K2 - 3646 K1EV - Bill - CT - K2 - 2152 N6VOH - Barry - CA - Icom 703 WB4MED - John - FL - Icom 718 WA7BOC - Roger - WA - K2 - 755 On 7046 kHz at 0300z: N9IV - Russ - IN - K2 - 4652 N0SS - Tom - MO - K2 - 008 W0CZ - Ken - ND - K2 - 1031 VE3XL - Ric - ON - K1 - 968 W7WEL - Bill - ID - K2 - 4001 N7NLU - Karl - OR - K2 - 4227 N7VS - Steve - OR - ? Sorry, we should have gotten your information :( W9JOP/4 - Bob - VA - Tuna tin 2 at 150 mW I had ~50% copy on you!! K5GUS - Dan - TX - K2 - 4426 K8NWD - Tim - MI - K2 - 076 WA7BOC - Roger - WA - K2 - 755 W9OPV? - ? - ? - ? Very weak signal as the noise came up strongly. Sorry :( At the end of the second net N7VS called back but copy was pretty poor. I thought he was in Washington so I tuned my NS G5RV and tried again. No better. Now I find he is in Portland! Well now I know the problem. I should have been using the two cans and a string method! Can't wait to get some rope and hoist that large loop into the fir trees. Then I'll start the very belated 80 meter Elecraft Net. Then I can work poor Fred down in California without a 2000 mile relay :) But soon he will be in Tucson sipping cold drinks and sending CW with his KX1 (new rig?? what SN?) from poolside. Can't wait to harass him while he basks in Arizona sunshine and the infamy of his wee rig :) I can reach AZ Fred!! The Elecraft Net was fun as always. But without the help of the three NCS folks (Tom, Dick, and Bill) it would not have been as easy. Thank you very much guys! Any errors in the above lists will be remedied both on the Reflector and in my database as quickly as I receive the errata. Thank you and 73, Kevin. KD5ONS (Net Control Operator 5th Class) -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 266.5.1 - Release Date: 2/27/2005 ___ 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] Birdies on 20m
Hello Michael, Because the QRN here is very low, I use the preamp most of the time on 40m when DXing, birdies are important to me, and for some time I have been on a Birdy Hunt. If all the oscillators in K2 are working well and on their correct frequencies, it is not possible to move a birdy (in frequency) because the IF of the K2's receiver is fixed at say 4915kHz. Although there are others, the three major causes of a a birdy are when one or several of the oscillators, fundamentals and / or harmonics combine to produce a signal at 1) The receiver's tuned frequency 2) At a spurious response frequency of the receiver (the so-called image is only one of these, there are many more) and 3) At the IF. I shall not complicate things by bringing in the isolation between mixer ports or re-mixing. In cases 2 and 3, IF the birdy signal gets in near the antenna connection, then the selectivity of the RF tuned circuits usually, but not always, helps to make the birdy weaker. IF the birdy gets in after the tuned circuits, say near the mixer input, then in most cases the tuned circuits will not help to make the birdy weaker. And I have found that many birdies ARE getting in after the tuned circuits, in the area of relays K16 and K17 on the RF board. Some of these birdies are created by a combination of three oscillators (or their harmonics) falling on a spurious response. So life is hard! Although I had started to re-engineer this area, I cannot give you any cures at this time because of an accident and I am walking like a donkey on four legs ! And the job will be difficult. And to be sure, when that is fixed another problem will appear. It interests me that apart from Grobmutter at 14.363, I can only just hear your other birdies but have others. I have suspected for some time that the mechanical construction of K2 might be playing in the birdy game. My apology for a long story, but I would suggest that you avoid your birdies for now. 73, Geoff. GM4ESD - Original Message - From: Michael van Hauten [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Sunday, February 27, 2005 7:53 PM Subject: [Elecraft] Birdies on 20m Hello all, my new k2 (4691)is ready and i had some qso,s with it. I have some birdies on the 20m-band, at 14030, 14151, 14211, 14272 and a very strong with s6 at 14363 . What is to do, to avoid them or to bring them in a range out of band? Thanks for your ideas! Michael, DC0ZO ___ 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] Birdies on 20m
Geoff, Are you proposing that some birdies may be caused by construction methods? If so, what techniques will reduce or eliminate birdies. Are there specific components that should be physically mounted in certain positions, either close to or spaced at a specific distance from the circuit board or other components? Rather than simply placing a component into the circuit board holes and soldering, should we be placing certain components into specific positions relative to the circuit board and other adjacent components? As I am planning on building another K2, and am a perfectionist by nature, I would like to be sure that my construction is maximizing performance, and minimizing adverse effects such as birdies. Darrell On February 27, 2005 10:02 pm, Geoffrey Mackenzie-Kennedy wrote: I have suspected for some time that the mechanical construction of K2 might be playing in the birdy game. 73, Geoff. GM4ESD -- Darrell Bellerive Amateur Radio Stations: VA7TO, VE7CLA Grand Forks, British Columbia, Canada ___ 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] The audio filter
On Sun, 27 Feb 2005, Bill Coleman wrote: On Feb 26, 2005, at 10:55 PM, [EMAIL PROTECTED] wrote: It might be impossible to do even if I mod it. I simply want to lower the noise floor. The noise floor is low. However I wanted to try to get it to sound like a TR-7's noise floor. Looking at the reviews in QST - the noise floor on the TR-7 was measured at -133 dBm on both 80m and 20m. The noise floor on the K2 was measured at -137 dBm on 80m, and -138 dBm on 20m. So, you're saying you want to WORSEN the noise floor by 4-5 dB? Heh, take the IF gain down a bit -- should do the trick :). ___ 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
