Re: [Elecraft] K3 firmware preview: Much-improved receive AF bass response
Hello Wayne, I am realy interested to fielt test the next release with the audio improvements. Please add met to the list of testers please . Many thanks, Dick PA3CW wayne burdick wrote: The next K3 beta firmware release will include dramatically better bass response in receive mode (50-200 Hz). The result is fuller, richer audio, which many of you have asked for. Lyle (KK7P) and I are completing the full beta test suite, and hope to do the release early next week. But we could also use a couple of volunteers--who really like low bass--to try the field-test release. 73, Wayne N6KR __ 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 -- View this message in context: http://n2.nabble.com/K3-firmware-preview-Much-improved-receive-AF-bass-response-tp3667622p3667874.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 firmware preview: Much-improved receive AF bass response
I can't wait! This is what | love about Elecraft, we complain and/or suggest things to improve and they try to add or fix it. Most of the time they succeed in making us all happy. I have no doubt the audio is going to improve big time with more bass response. 73, Maarten PD2R 2009/9/18, Wayne Burdick n...@elecraft.com: The next K3 beta firmware release will include dramatically better bass response in receive mode (50-200 Hz). The result is fuller, richer audio, which many of you have asked for. Lyle (KK7P) and I are completing the full beta test suite, and hope to do the release early next week. But we could also use a couple of volunteers--who really like low bass--to try the field-test release. 73, Wayne N6KR __ 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] Use of K3 Antenna Tuner to match amplifier input
On Thu, 17 Sep 2009 18:25:10 -0500, Radio Amateur N5GE n...@n5ge.com wrote: On Thu, 17 Sep 2009 20:20:42 +, Lance Collister, W7GJ w...@q.com wrote: The SWR is 3:1 according to the SWR meter on the K3. The amp is a solid state TE SYSTEMS amp with an untuned input, which is why I want to try to use the K3 antenna tuner to match into it. TNX for your suggestions. VY 73, Lance Lance, Just to correct an error in the original; It is the 0552G I was referring to... I have one of the TE Systems 0532G amps. In the manual on page 6-2 are instructions for tuning the amp's input SWR. One more thing! Important! Do not drive this amplifier at more than 16w input un less you know foe certain that your transmit power does not have a short peak output greater that 25 watts at the beginning of TX when driving the amp with 20 to 25 watts. If the TX does have this anomaly the finals will be damaged. I had been driving mine with k3 #806 at 20 watts and found this out the hard way. They ain't cheap to fix I now drive it with 16 watts as recommended in the pink sheet that comes with new TE Systems 0532G amps. Tom, N5GE n...@n5ge.com K3 #806, K3 #1055, PR6, XV144, XV432, KRC2, W1 and other small kits. http://www.n5ge.com http://www.swotrc.net __ 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 firmware preview: Much-improved receive AF bassresponse
Will this be optional? Personally I don't want it. I have impaired hearing and bass response seriously degrades intelligibility for me. Bryan, Zl1NI The next K3 beta firmware release will include dramatically better bass response in receive mode (50-200 Hz). The result is fuller, richer audio, which many of you have asked for. Lyle (KK7P) and I are completing the full beta test suite, and hope to do the release early next week. But we could also use a couple of volunteers--who really like low bass--to try the field-test release. 73, Wayne N6KR __ 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 firmware preview: Much-improved receive AF bass response
I'm still field testing 3.20 I think it is as that one accidentally had the better LF response... I had to go back when it got taken away... Looking forward to getting the more NR options AND LF response! Thanks Elecraft! ~Brett On Thu, 2009-09-17 at 23:50 -0700, PA3CW wrote: Hello Wayne, I am realy interested to fielt test the next release with the audio improvements. Please add met to the list of testers please . Many thanks, Dick PA3CW wayne burdick wrote: The next K3 beta firmware release will include dramatically better bass response in receive mode (50-200 Hz). The result is fuller, richer audio, which many of you have asked for. Lyle (KK7P) and I are completing the full beta test suite, and hope to do the release early next week. But we could also use a couple of volunteers--who really like low bass--to try the field-test release. 73, Wayne N6KR __ 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 firmware preview: Much-improved receive AF bass response
Another improvement to the K3 makes me a happy man. The K3 is so good that I am considering the sale of an Icom 746 PRO to purchase a second K3 for hauling around. This time perhaps I will install the two meter option. Thank you Elecraft for encouraging the feedback and for being patient when your users get impatient. I am looking forward to the P3 panadaptor. 73 Doug __ 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 s/n2258 and new filter kit
Since completing this K1-4 nearly three years ago for 40,30,20,15, have had a lot of fun using it at home and park bench portable. Yesterday, after building a 2-band filter for 80 17M, made a few QSOs on those bands as well. I've found the K1 a very useful QRP rig for my purposes. Awhile ago, recall reading some chatter about Elecraft offering a filter board kit for 20,17,1510 once the sunspots started coming back. I suppose with all the K3 work the K1 is probably far down on priorities. But, I for one would happily be first in line to order such a kit if offered. Alternately, has anyone successfully configured a 4-band filter for these bands on their own? 73, Curt KB5JO __ 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 firmware preview: Much-improved receive AF bass response
Wowee! This could save me the trouble of modifying DSP board hardware. I've asked to be a beta tester on this, as I often browse the AM stations and have a 13kHz filter installed. I have 2 x K3's to modify and the first one is already stripped down and the components to be removed are marked. I intended starting the mod after lunch today, viz in 45 minutes. 73 DaveL G3TJP __ 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 firmware preview: Much-improved receive AF bass response
If you leave your fingers off the shift control, bass response will be the same as it is now. 73, Barry N1EU ZL1NI wrote: Will this be optional? Personally I don't want it. I have impaired hearing and bass response seriously degrades intelligibility for me. Bryan, Zl1NI wayne burdick wrote: The next K3 beta firmware release will include dramatically better bass response in receive mode (50-200 Hz). The result is fuller, richer audio, which many of you have asked for. Lyle (KK7P) and I are completing the full beta test suite, and hope to do the release early next week. But we could also use a couple of volunteers--who really like low bass--to try the field-test release. 73, Wayne N6KR -- View this message in context: http://n2.nabble.com/K3-firmware-preview-Much-improved-receive-AF-bass-response-tp3667622p3668363.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 -AM Broadcast on 1800 Khz?
On my new K3 I hear a Christian broadcast station centered on 1800 Khz. I listened for awhile and Ohio was mentioned in the commercials several times. I live about 70 miles from Ohio and couldnt find the station anywhere else on my K3 after a quick search. I'm using a horizontal 160 meter loop antenna with no other indications of images or harmonics from broadcast signals. Any comments? -- View this message in context: http://n2.nabble.com/K3-AM-Broadcast-on-1800-Khz-tp3668435p3668435.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 -AM Broadcast on 1800 Khz?
WCER- Canton, OH. 500W daytime. Christian format. 1800 kHz is the second harmonic of 900 kHz. Call the station and ask to speak to its General Manager or Chief Engineer. Give the station an opportunity to assess the situation before contacting the FCC. Paul, W9Ac - Original Message - From: Steve Walter WA3A w...@arrl.net To: elecraft@mailman.qth.net Sent: Friday, September 18, 2009 8:34 AM Subject: [Elecraft] K3 -AM Broadcast on 1800 Khz? On my new K3 I hear a Christian broadcast station centered on 1800 Khz. I listened for awhile and Ohio was mentioned in the commercials several times. I live about 70 miles from Ohio and couldnt find the station anywhere else on my K3 after a quick search. I'm using a horizontal 160 meter loop antenna with no other indications of images or harmonics from broadcast signals. Any comments? -- View this message in context: http://n2.nabble.com/K3-AM-Broadcast-on-1800-Khz-tp3668435p3668435.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 -AM Broadcast on 1800 Khz?
*Looks like second harmonic of WFIA* (900 KHz ) in Louisville KY. Could be radiated by WFIA or could be generated locally to you. Temporary installation of a high pass filter with a 1500 KHz cutoff between your K3 and the antenna would demonstrate whether it is generated inside the K3 or externally. Jack K8ZOA Steve Walter WA3A wrote: On my new K3 I hear a Christian broadcast station centered on 1800 Khz. I listened for awhile and Ohio was mentioned in the commercials several times. I live about 70 miles from Ohio and couldnt find the station anywhere else on my K3 after a quick search. I'm using a horizontal 160 meter loop antenna with no other indications of images or harmonics from broadcast signals. Any comments? __ 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 -AM Broadcast on 1800 Khz?
Hi Steve, Assuming you listened long enough to hear the station's call letters or ID slogan you can do a Google search and probably learn their assigned frequency, which is likely to be 900 kHz. It's possible that the 1800 kHz signal is a mixing product involving strong external signals, but I'd suspect a simple 2nd harmonic. Do you have the general coverage module in your K3? Second harmonics from BC stations are not uncommon, especially when using a good antenna on 160M. (;-) 73! Ken Kopp - K0PP elecraftcov...@rfwave.net http://tinyurl.com/7lm3m5 __ 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 1800Khz Broadcast
Although the K3 is my only rig I forgot that I had a borrowed TS570 on the shelf. I checked and the signal is there using it also so this is not a K3 topic. I hoped it wasnt! But surely this station must be illegal. Steve -- View this message in context: http://n2.nabble.com/K3-1800Khz-Broadcast-tp3668544p3668544.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 1800Khz Broadcast
Although the K3 is my only rig I forgot that I had a borrowed TS570 on the shelf. I checked and the signal is there using it also so this is not a K3 topic. I hoped it wasnt! But surely this station must be illegal. Steve -- View this message in context: http://n2.nabble.com/K3-1800Khz-Broadcast-tp3668545p3668545.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 1800Khz Broadcast
Although the K3 is my only rig I forgot that I had a borrowed TS570 on the shelf. I checked and the signal is there using it also so this is not a K3 topic. I hoped it wasnt! But surely this station must be illegal. Steve -- View this message in context: http://n2.nabble.com/K3-1800Khz-Broadcast-tp3668547p3668547.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] FS 2.7khz 5 pole filter
This is the filter that came with #3300. It is about 2 months old. Will sell for $50.00. Contact me direct Rich k3...@arrl.net __ 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 -AM Broadcast on 1800 Khz?
Paul: A few years ago, there was a clearly readable, consistent signal on the low end of 3.5 MHz band from the 3rd harmonic of an AM station in Philadelphia. I can't recall the exact frequency, may have been 1220 KHz that I heard at 3660 KHz. Philadelphia is around 150 miles from here so it wasn't a case of locally generated harmonics or receiver products. It must be radiated from the station. And, the modulation was clear, further evidence that it was not locally induced. After hearing it for several days, I called the FCC watch desk in DC. The response I received was that since the harmonic was only in an amateur radio band no action would be taken. I left it at that, figuring that if I could hear the signal from 150 miles, the local 80 meter operators in Philadelphia must be hearing it and they would take care of the problem. Don't know if I got a guy who didn't want to do his job or if that is the new approach after almost all the field offices and field enforcement was shut down. I know that back in the stone ages when I was a field engineer at the Detroit FCC office, I would have found it worth investigating. Jack Paul Christensen wrote: WCER- Canton, OH. 500W daytime. Christian format. 1800 kHz is the second harmonic of 900 kHz. Call the station and ask to speak to its General Manager or Chief Engineer. Give the station an opportunity to assess the situation before contacting the FCC. Paul, W9Ac - Original Message - From: Steve Walter WA3A w...@arrl.net To: elecraft@mailman.qth.net Sent: Friday, September 18, 2009 8:34 AM Subject: [Elecraft] K3 -AM Broadcast on 1800 Khz? On my new K3 I hear a Christian broadcast station centered on 1800 Khz. I listened for awhile and Ohio was mentioned in the commercials several times. I live about 70 miles from Ohio and couldnt find the station anywhere else on my K3 after a quick search. I'm using a horizontal 160 meter loop antenna with no other indications of images or harmonics from broadcast signals. Any comments? -- View this message in context: http://n2.nabble.com/K3-AM-Broadcast-on-1800-Khz-tp3668435p3668435.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 firmware preview: Much-improved receive AF bass response
Wayne, I would like to give it a try. Thanks, Bob W9RFS wayne burdick wrote: The next K3 beta firmware release will include dramatically better bass response in receive mode (50-200 Hz). The result is fuller, richer audio, which many of you have asked for. Lyle (KK7P) and I are completing the full beta test suite, and hope to do the release early next week. But we could also use a couple of volunteers--who really like low bass--to try the field-test release. 73, Wayne N6KR __ 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 -- View this message in context: http://n2.nabble.com/K3-firmware-preview-Much-improved-receive-AF-bass-response-tp3667622p3668567.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 s/n2258 and new filter kit
Curt wrote: Awhile ago, recall reading some chatter about Elecraft offering a filter board kit for 20,17,1510 once the sunspots started coming back. ... has anyone successfully configured a 4-band filter for these bands on their own? Stephanie/VA3UXB did a lot of work on this mod for both 2- and 4-band filter boards, details of which are at: http://www.jl3amk.org/en/index.htm#k1_mods_12m_10m In particular, the references at that URL refer to a 2006 posting by Wayne with details of a 4-band board such as you desire: http://mailman.qth.net/pipermail/elecraft/2006-January/051400.html I've not tried these myself, but they look interesting. Mike / KK5F __ 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 -AM Broadcast on 1800 Khz?
After hearing it for several days, I called the FCC watch desk in DC. The response I received was that since the harmonic was only in an amateur radio band no action would be taken. As I recall, harmonic energy in Part 73 AM broadcast services still falls under the general emission limitations under Section 73.44(b): Emissions removed by more than 75 kHz must be attenuated at least 43 + 10 Log (Power in watts) or 80 dB below the unmodulated carrier level, whichever is the lesser attenuation, except for transmitters having power less than 158 watts, where the attenuation must be at least 65 dB below carrier level. Interference to the reception of other services is addressed in Section 73.44(c): Should harmful interference be caused to the reception of other broadcast or non-broadcast stations by out of band emissions, the licensee may be directed to achieve a greater degree of attentuation than specified in paragraphs (a) and (b) of this section. So, in the event the FCC was to dismiss a future complaint, I would bring these sections to their attention. The first step in resolving these matters is to be prepared with knowledge of the rules and work directly with the station before getting the Commission involved. In some cases, second-harmonic notch filters may be required in addition to the AM transmitter's existing LP network. Paul, W9AC __ 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 firmware preview: Much-improved receive AF bassresponse
Bryan, ZL1NI wrote: Will this be optional? Personally I don't want it. I have impaired hearing and bass response seriously degrades intelligibility for me. It's entirely dependent on the setting of Shift/Width in CW or Hi/Low in SSB. If you don't extend the passband to include the low frequencies, you don't hear anything different. All the change does is provide the /capability/ to reproduce the bass tones if you adjust it to do so. -- 73, Vic, K2VCO Fresno CA http://www.qsl.net/k2vco __ 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] Transmit on VFO B
Hi, I know it was discussed before, but i haven't found a final statement in the archives of the List. My last info is it is impossible to Transmit on VFO B during Output Filter Switching and QSK. I'm not sure if somebody ask to switch off QSK in this split mode. Are there any plans to have such a feature in the future? (I really like this on my TS-850 in combination with N1MM) Thanks Olli, DH2WQ -- Oliver Grossmann | DH2WQ | oliver.grossm...@bretzi.de __ 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] K2 for sale
I have for sale K2 #6673 with the kpa100 and kat100 in the separate ec2 case, ksb2, k160rx, knb2, kat2, fdimp and kio2, about $2000.00 total cost. It works like a dream, is like new, with extra parts, manuals, etc. Asking $1200.00 plus shipping. Brett N2DTS brett.gazdzin...@verizon.net __ 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] Transmit on VFO B
Me again, i forget, Tx on VFO B if VFO B is on different Band. 73 Olli, DH2WQ Oliver Grossmann | DH2WQ | oliver.grossm...@bretzi.de Oliver Grossmann wrote: Hi, I know it was discussed before, but i haven't found a final statement in the archives of the List. My last info is it is impossible to Transmit on VFO B during Output Filter Switching and QSK. I'm not sure if somebody ask to switch off QSK in this split mode. Are there any plans to have such a feature in the future? (I really like this on my TS-850 in combination with N1MM) Thanks Olli, DH2WQ __ 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 -AM Broadcast on 1800 Khz?
On Fri, 18 Sep 2009 09:59:46 -0400, Paul Christensen wrote: As I recall, harmonic energy in Part 73 AM broadcast services still falls under the general emission limitations under Section 73.44(b): Yes. Several things are at play here. First, when a transmitter is producing strong harmonic content, something is WRONG. It's either broken or mistuned. Second, we have the effects of the deregulation of broadcast engineering of the Reagan years (remmeber the rants against big government and for untrammelled free enterprise?), so the requirements that stations have licensed engineers on duty are long gone, and the FCC lacks the staff and funding to do much of its work still mandated by its own rules. Nowadays, a single broadcast engineer is likely to be responsible for a half dozen or more stations, even in major markets. Contrast this with 30 years ago when many major market stations employed 3 or more full time engineers, most of them competent to do transmitter work. For 20 years, I lived within 4 miles of virtually all the FM and TV broadcasters in Chicago, and had a gain antenna on the roof that fed a vintage Technics ST9030 FM tuner with a rock solid analog front end that had a four-gang tuning capacitor. Only once did I hear a spur from any of those stations, it was during an overnight maintenance period, and it was gone in a few hours. If you monitor the topband reflector (160M), you'll occasionally see posts about broadcast spurs on 160M, sometimes strong. It rarely takes more than a few weeks for pressure from hams on the FCC and those stations to clean up their act. The key words to the station are something in your transmitter is broken, and is likely to fail completely. You should fix it soon before it takes you off the air and you lose advertising revenue. 73, Jim Brown 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 firmware review: Much-improved receiving AF base responce
Wayne, does the new firmware require any hardware mods? The reason for the question is that everything at this QTH is ready for the California QSO Party and I don't want to risk getting inside the K3. Yes, I would appreciate the opportunity to help test the new firmware beta. 73, Fred AE6IC __ 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] firmware release
Hi K3 gang- Anybody have an idea of when updates 3.25, 3.27 and 3.30 will become regular production releases? Thanks KT9T __ 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: Make Monitor level track AF level?
I'm finally coming to terms with K3 3260, born July '09. It's at last fully integrated into the station, and the diversity receive capability just blows what's left of my mind. This thing is like a race car: it rolls off the trailer pretty damn fast, but once you start fine-tuning it it just gets better and better. To further belabor the race car analogy, my trusty old FT-1000D is like a NASCAR stocker, big and heavy but a bulletproof performer. The K3 is like an Indycar or a Formula I car, maybe somewhat more delicate and fussy, but able to perform at a considerably higher level once it's set up and the driver learns to get the most from it. Now that I (mostly) know how to operate the K3, I suppose I'm qualified to start picking nits about how certain things work. The thing that bothers me the most is the Monitor function, especially for CW. For any serious DX or contest work I always use headphones, but I sometimes like to just grab the paddle and work somebody using the station speaker. I normally keep the Monitor level set at about 20-25, since that's what I find most comfortable when I'm using headphones. When I'm using the speaker, I can hardly hear the sidetone or the spot tone. If I go ahead and crank up the Monitor level to where I can hear it in the speakers, the next time I use headphones I'll forget to readjust the level and the sidetone will practically rip my head off. Unfortunately, the Monitor level is independent from the AF level so just turning down the volume, which I always do when using phones, doesn't keep me from getting blasted. What I would like to see would be a firmware change that allows the Monitor level to be adjusted to a percentage of the main receive level, or perhaps set to a specific offset value in dB, such that the relative levels between the main audio and the monitor signal always track as the AF control is varied. I take the audio from the K3 rear panel SPKRS jack to route into my station audio switching for either the headphones or the speaker, so I would rather see it done this way than by making a Monitor level change when the hardware detects that the phones have been plugged in. I've looked through the reflector archives and can't seem to find any posts that address my concern. That doesn't mean there aren't any; I just didn't see them. Does this suggestion sound like a useful firmware tweak to anyone else here? 73... Randy, W8FN __ 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: Make Monitor level track AF level?
Randy: I have just the opposite problem. With my 32 ohm headphones I have to crank up the sidetone to 40 but down to 15 with the 8 ohm speaker. It wouldn't be so bad if I didn't have to listen to the tone while adjusting. There's 2 problems with this method. If I want to change sidetone level while in QSO, I miss words the other station is sending or have to pause my sending while adjusting the level. Why must that tone be present? I know of no other rig that does this. If I remove my headphones and start to call CQ, I blast the entire house with my sidetone. I quickly remember that I forgot to turn it down before removing my cans. So I push the sidetone button and blast everyone again until I can get it cranked down. This is a very strange system. If I wanted to hear the tone, I could just press the Pitch button! Having the sidetone track with the AF gain is nice as long as it's also independently adjustable but for some reason there are some ops who are strongly opposed to thisSomething to do with riding the AF gain for weak signals etc Anyway. I would just like to be able to disable the tone when adjusting the level. Steve N4LQ n...@carolina.rr.com - Original Message - From: Randy Farmer w...@tx.rr.com To: elecraft@mailman.qth.net Sent: Friday, September 18, 2009 2:35 PM Subject: [Elecraft] K3: Make Monitor level track AF level? I'm finally coming to terms with K3 3260, born July '09. It's at last fully integrated into the station, and the diversity receive capability just blows what's left of my mind. This thing is like a race car: it rolls off the trailer pretty damn fast, but once you start fine-tuning it it just gets better and better. To further belabor the race car analogy, my trusty old FT-1000D is like a NASCAR stocker, big and heavy but a bulletproof performer. The K3 is like an Indycar or a Formula I car, maybe somewhat more delicate and fussy, but able to perform at a considerably higher level once it's set up and the driver learns to get the most from it. Now that I (mostly) know how to operate the K3, I suppose I'm qualified to start picking nits about how certain things work. The thing that bothers me the most is the Monitor function, especially for CW. For any serious DX or contest work I always use headphones, but I sometimes like to just grab the paddle and work somebody using the station speaker. I normally keep the Monitor level set at about 20-25, since that's what I find most comfortable when I'm using headphones. When I'm using the speaker, I can hardly hear the sidetone or the spot tone. If I go ahead and crank up the Monitor level to where I can hear it in the speakers, the next time I use headphones I'll forget to readjust the level and the sidetone will practically rip my head off. Unfortunately, the Monitor level is independent from the AF level so just turning down the volume, which I always do when using phones, doesn't keep me from getting blasted. What I would like to see would be a firmware change that allows the Monitor level to be adjusted to a percentage of the main receive level, or perhaps set to a specific offset value in dB, such that the relative levels between the main audio and the monitor signal always track as the AF control is varied. I take the audio from the K3 rear panel SPKRS jack to route into my station audio switching for either the headphones or the speaker, so I would rather see it done this way than by making a Monitor level change when the hardware detects that the phones have been plugged in. I've looked through the reflector archives and can't seem to find any posts that address my concern. That doesn't mean there aren't any; I just didn't see them. Does this suggestion sound like a useful firmware tweak to anyone else here? 73... Randy, W8FN __ 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.409 / Virus Database: 270.13.105/2380 - Release Date: 09/18/09 07:49:00 __ 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 -AM Broadcast on 1800 Khz?
Jim Brown wrote... The key words to the station are something in your transmitter is broken, and is likely to fail completely. You should fix it soon before it takes you off the air and you lose advertising revenue. It might also be useful to point out that their power expenses might be higher than they should be, because they are transmitting power that isn't getting to their desired audience. 73, George T Daughters, K6GT CU in the California QSO Party (CQP) October 3-4, 2009 __ 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] [K1] K1 U2 extraction help!
You probably made the best choice for you. If the chip is cheap - which it is just cut the pins and remove individually. It is fairly easy to remove such a chip using hot air or thick tinned copper wire. You need to be careful with hot air but if you mask off the rest of the board with a piece of aluminium with a hole in it to view just the pins and heat from the bottom you can heat all pins at one and the chip will drop off. I have used this technique many times but usually I am interested in salvaging the component and not the PCB. If you get it too hot you can burn the PCB. I have an SMD hot air cun that makes this operation very easy. I assume you don't have one - so perhaps best to not try. The other way is with copper wire. Solder a thick piece of copper wire to all the pins at the base. Small piece of copper shim wold do as well. Then heat this with a hot iron so all the solder for all the pins melts. The chip will drop out. I wish elecrat would start to go on the SMD route. Removing SMD components is much easier. When you learn how the larger sized SMDs so are much easier to work with than leaded parts. Mike Gary W. Marklund wrote: Thanks to all that replied on and off list. I've tried a wick and the RS solder sucker and have the bottom clean and clear but there is still just a bit but enough solder on the top of the board to hold the IC in place. Think I'll go the safe route and order a replacement from Elecraft and clip the leads on the existing one. 73, Gary KJ7RT __ 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 -- View this message in context: http://n2.nabble.com/K1-U2-extraction-help-tp3537980p3671727.html Sent from the [K1] mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: Make Monitor level track AF level?
It wouldn't be so bad if I didn't have to listen to the tone while adjusting. There's 2 problems with this method. If I want to change sidetone level while in QSO, I miss words the other station is sending or have to pause my sending while adjusting the level. Why must that tone be present? ... If I wanted to hear the tone, I could just press the Pitch button! Or the Spot button. I thought that's what it's there for. I quite agree. The pitch adjustment on the K3 has seemed weird to me from day one. Why not just be able to adjust the Pitch in receive mode and hear the received audio tone change in real time? I certainly don't understand why it's necessary to mute the receive audio while the pitch is being adjusted. I definitely don't know what's going on under the software hood when the pitch is adjusted, but it seems to me it can't be all that much different from what happens when you just turn the Shift knob on the front panel. I expected to hear that effect the first time I played with the pitch, but that wasn't what happened. It sent me to the manual to see if I had screwed up the configuration somehow. And as long as we're asking for changes, why not make the CW and Data mode monitor levels independent? I sure don't need to listen to transmitted PSK tones like I do CW sidetone. Having the sidetone track with the AF gain is nice as long as it's also independently adjustable but for some reason there are some ops who are strongly opposed to thisSomething to do with riding the AF gain for weak signals etc How about a configuration item such as MonTk = ON or MonTk = OFF? Anyway. I would just like to be able to disable the tone when adjusting the level. Me, too. 73... Randy, W8FN __ 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] FW: K3 firmware preview: Much-improved receive AF bassresponse
Thanks for all the helpful responses to this. I am running Rev. 2.78 here. It is good to know, given the way I operate, there will be no difference should I upgrade to an official release in the future that has the better bass response. Bryan, Zl1NI Will this be optional? Personally I don't want it. I have impaired hearing and bass response seriously degrades intelligibility for me. Bryan, Zl1NI The next K3 beta firmware release will include dramatically better bass response in receive mode (50-200 Hz). The result is fuller, richer audio, which many of you have asked for. Lyle (KK7P) and I are completing the full beta test suite, and hope to do the release early next week. But we could also use a couple of volunteers--who really like low bass--to try the field-test release. 73, Wayne N6KR __ 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 firmware preview: Much-improved receive AF bass response
YES.Please put on the volunteer list for this... Thanks Antnee N3ANT wayne burdick wrote: The next K3 beta firmware release will include dramatically better bass response in receive mode (50-200 Hz). The result is fuller, richer audio, which many of you have asked for. Lyle (KK7P) and I are completing the full beta test suite, and hope to do the release early next week. But we could also use a couple of volunteers--who really like low bass--to try the field-test release. 73, Wayne N6KR __ 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 -- View this message in context: http://n2.nabble.com/K3-firmware-preview-Much-improved-receive-AF-bass-response-tp3667622p3672298.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Strange sound
I've never seen this situation written about but I've just come across a very strange sound on my K3 - S/N-1068. With the dial on 29.492.6 USB I get a continuous CW sounding signal. It alternates a dot, then a dash then a space. If it were truly CW is would be considered poorly sent CW and the speed is about 10- 12 WPM. The lengths of the characters are not exactly the same each time but it never stops. I discovered it yesterday and wanted to make sure it was not just a one time thing. I can switch modes and it remains. Removing the antenna does not stop it, actually makes it a little stronger with the noise level dropped. I'm using firmware 3.30 beta. I tried on the SUB receiver and I hear nothing. It smacks, a bit, of the beginning of a science fiction TV show. Any clue as to what I might be hearing? 73, Jim - K5LAD Growing old is like being increasingly penalized for a crime you haven't committed. -- Anthony Powell - Visit my webpages at: http://www.hayseed.net/~jpk5lad/ __ 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] Regarding availability of the W3FPR Fixed-Output AF PC Board
Greetings: Sales of the W3FPR Fixed-Output AF PC board have again slowed. Additionally, I have a limited quantity remaining... actually, only eight (8) boards remain. Once these boards are gone, I'll probably NOT reorder more boards to be made by FAR Circuits. However, if someone else might want to take up the task, I'll be happy to make the PCB layout available to you and I'm sure that Fred at FAR Ckts would be just as tickled to make them for you as he would be for me. For what it's worth, one 8 X 11 'sheet' of these PC boards contains about 54 (6 X 9) PC boards. 73, Tom Hammond N0SS __ 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] There's a new K1 on the block
SN 2760 lives !! A few minor tweaks left but I heard a lot of activity on 30M with about 4 feet of wire. Time to put the finishing touches on my antennas and then I'll be out there trying for QRP DX. Gary KJ7RT Sun City, AZ __ 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 1800Khz Broadcast
Yes this is indeed WCER in Canton, OH on 900 Khz. Canton is at least 100 miles from me. I cant even copy their signal on 900 Khz using a good portable radio or the K3 (but I notice the K3 attenuates signals in that range. I dont have the general coverage filter option.) Thanks for the comments! I will contact them. Steve -- View this message in context: http://n2.nabble.com/K3-1800Khz-Broadcast-tp3668547p3672444.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 firmware preview: Much-improved receive AF bass response
Just release it - you know it works already! We have confidence in you. Beta is beta. wayne burdick wrote: The next K3 beta firmware release will include dramatically better bass response in receive mode (50-200 Hz). The result is fuller, richer audio, which many of you have asked for. Lyle (KK7P) and I are completing the full beta test suite, and hope to do the release early next week. But we could also use a couple of volunteers--who really like low bass--to try the field-test release. 73, Wayne N6KR __ 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 -- View this message in context: http://n2.nabble.com/K3-firmware-preview-Much-improved-receive-AF-bass-response-tp3667622p3672489.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Small help
Just finished the KPA100. Page 49 External Amp Keying test. Getting 15 ohms during Tune. Tried two meters. R1 and C90 look OK. Ideas? Best regards AD1G __ 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] BC band station on 1800 kc
Check your antenna and feedline connections as well as your connection to a ground. Loose items there could be causing diode action inducing extra signals. Happens here in the desert with things being so dry. Dry soil most of the time until you get a rain, then it swells up, then shrinks again as drying comes. That's another reason for multiple connections to good grounds out here. I don't have a broadcast station for about 10 miles but occasionally i get overload on some freq's. Might be an easy fix and then it might require some extra effort. Larry W0OGH __ 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 1800Khz Broadcast
Hi Steve, Are you sure it is WCER you are hearing? I am about 20 miles from Canton and I do not hear anything at all on 1800 Khz. However, I do hear their signal on 900 Khz S9 Plus. 73, John, KD8K Steve Walter WA3A wrote: Yes this is indeed WCER in Canton, OH on 900 Khz. Canton is at least 100 miles from me. I cant even copy their signal on 900 Khz using a good portable radio or the K3 (but I notice the K3 attenuates signals in that range. I dont have the general coverage filter option.) Thanks for the comments! I will contact them. Steve __ 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] Small help
Dick, The normal resistance is very high (receive periods) and very close to zero during transmit (or TUNE). Your 15 ohms is unusual. Check the gate voltage of Q9 - it should be close to 5 volts. Also check the soldering of Q9. Be ceertain the source connection has had enough heat to flow the solder out onto both the solder pad and the Q9 lead. 73, Don W3FPR richard gilley wrote: Just finished the KPA100. Page 49 External Amp Keying test. Getting 15 ohms during Tune. Tried two meters. R1 and C90 look OK. Ideas? Best regards AD1G __ 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 Field-Test Firmware, rev 3.33 (Improved receiver low-frequency response)
Boy it really sounds good Wayne. AM broadcast quality. Outstanding job. I really like it! Jerry -n6jp- On Fri, Sep 18, 2009 at 11:49 AM, Wayne Burdick - N6KR, Elecraft wa...@elecraft.com wrote: Hi all, Thanks for your interest in the latest K3 field-test firmware (attached). It can be installed the same way as beta releases; see instructions on our web site. Please carefully read all the release notes for this revision, below. There are many changes besides the low-frequency AF improvement. One additional point I'd like to make regarding this. Remember that the K3 is a *communications* radio, first and foremost. This is why the NORMalized low end of the AF passband is set to 100 Hz in SSB and AM modes. (That's a 2.8 kHz WIDTH, a center frequency of 1.5 kHz, and thus a lo-cut value of 0.10 kHz.) Putting the filter low edge at 100 Hz at all three points in the receive chain -- crystal filter, 15 kHz IF, and AF -- minimizes adjacent-channel low-frequency QRM. Now, with the release of this new firmware, you can override our sensible low-frequency cutoff :) When you adjust SHIFT, WIDTH, or LOCUT such that the passband is skewed lower, you'll get much richer/fuller bass, but you are of course inviting additional QRM on the low end. So be ready to NORMalize again if necessary. Let me know how your testing goes. 73, Wayne N6KR MCU 3.33 / DSP 2.30, 9-18-2009 * IMPROVED RECEIVE LOW-FREQUENCY RESPONSE in AM, SSB and CW modes. (For best results, use headphones or external speakers with extended bass.) NORMalizing the DSP passband still sets the low-frequency bound to about 100 Hz in AM and SSB modes. But by using SHIFT, WIDTH or LO CUT, you can extend the audio response to around 50 Hz. User-configurable NORM1 and NORM2 settings, or presets I/II, can then be used to store desired values (per-mode). The two lowest MAIN:RX EQ ranges (50 and 100 Hz) can be used to further enhance bass. * SUB RX NOISE BLANKER NOW FULLY INDEPENDENT OF MAIN: This includes the on/off state and NB LEVEL settings. Note: Set CONFIG:NB SAVE to YES if you wish to keep the noise blanker ON even when changing bands. The NB on/off state is stored on a per-band basis for both main and sub receivers. * DSP INTERNAL ERROR MONITORING: The DSPs now do additional self-checking so they can automatically detect and prevent any type of rare AF output anomaly. If you hear anything unexpected, please report the associated information to Elecraft. While in the TECH MD menu entry, tap 1 (main) or 2 (sub) to display the most recent data, shown in hexadecimal. If it is “”, no error has been detected. After writing down the values, tap CLR to reset them, allowing additional errors to be trapped if necessary. * PL TONE DEVIATION ADJUSTABLE: Tapping '1' in CONFIG:FM DEV changes menu entry name to PL DEV and allows setting PL tone deviation from 300-600 Hz in 30-Hz steps (default is 360 Hz). * EU REPEATER 1750 HZ PL TONE BURST: In FM mode, if PL TONE is selected and the tone pitch is set to 1750 Hz (using the PITCH switch), a 500 ms tone burst at 1750 Hz will be transmitted on each activation of PTT. As a reminder, the -T icon will flash briefly at the start of each of each transmission, then turn off until you’ve finished transmitting. * EXTENDED 6-METER TUNING RANGE: The VFO can now be tuned down to 44 MHz to monitor signals that may be correlated with 6-meter band openings. Since the K3 has narrow band-pass filters, loss rapidly increases as the VFO is tuned below 49 MHz (-34 dB typ. at 45 MHz). If a preamp is in use ahead of the band pass filter (such as an Elecraft PR6), the noise figure may still be adequate for monitoring strong 44-49 MHz signals. * KEYPAD (1-9) SWITCH TONES WORKING FOR MV AND VM, M1-x: Some keypad switches weren't producing a dual tone during memory store/recall operations and message play. __ 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 - Soft Padded Carrying Case from REI
i've been looking for a form-fitting(ish) carrying bag for my K3, mic, log book, etc. and happened to stumble across a case at the local REI Outdoor/Hiking/Sports store. wrote up a little description complete with photos you can see on my blog: http://w6rdg.blogspot.com/2009/09/cool-case-for-my-k3.html i know when it comes to cases, one size does not fit all, but this is working a treat for me! 73 robin (W6RDG) __ 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 - Soft Padded Carrying Case from REI
That's not bad, but I prefer this one http://photos.smugmug.com/photos/452236495_pedTk-M.jpg from Rose's Cases, especially since it is made for the K3, there is no problem with it being too tight and pressing in on the main tuning knob etc. 73, Bob W5OV Email Rose at elecraftcov...@rfwave.net for details and pricing. Or Tel: 406-560-3738 www.smugmug.com/gallery/7058736_hZbo4/1/452236459_Bc3aF#452236459_Bc3aF -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Robin Diane Goldstein Sent: Friday, September 18, 2009 7:16 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 - Soft Padded Carrying Case from REI i've been looking for a form-fitting(ish) carrying bag for my K3, mic, log book, etc. and happened to stumble across a case at the local REI Outdoor/Hiking/Sports store. wrote up a little description complete with photos you can see on my blog: http://w6rdg.blogspot.com/2009/09/cool-case-for-my-k3.html i know when it comes to cases, one size does not fit all, but this is working a treat for me! 73 robin (W6RDG) __ 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 - Soft Padded Carrying Case from REI
hi bob... i looked at rose's cases and they are beautiful and fit 'perfectly' as they're custom, but they don't have enough padding for my purposes, and are a bit pricey compared the REI case. however, if someone wanted to -give- me one or rose's cases, i certainly wouldn't complain! (smile) 73 robin (W6RDG) http://www.W6RDG.com At 7:48 PM -0500 9/18/09, Robert Naumann wrote: That's not bad, but I prefer this one http://photos.smugmug.com/photos/452236495_pedTk-M.jpg from Rose's Cases, especially since it is made for the K3, there is no problem with it being too tight and pressing in on the main tuning knob etc. 73, Bob W5OV Email Rose at elecraftcov...@rfwave.net for details and pricing. Or Tel: 406-560-3738 www.smugmug.com/gallery/7058736_hZbo4/1/452236459_Bc3aF#452236459_Bc3aF __ 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 Field-Test Firmware, rev 3.33 (Improved receiver low-frequency response)
I installed tonight the new FW 3.33 released and man oh man,what a big difference in audio quality,my K3 now goes down to 50Hz,reception in AM broadcasting is a delight and also when I tune ESSB stations in my Sony headphones or my HiFi speaker is like hearing a broadcast on AM as well,for the ones interested to hear and also see my audio now,I have prepared a couple of audio graphs and a recording from a guy at PA with wide audio that talked to me few mins ago on 40M,this new FW is a success at least on my K3. AD4C K3 and K2 The difference between genius and stupidity is that genius has its limits. -- Albert Einstein --- On Sat, 9/19/09, Jerry L n6jp8...@gmail.com wrote: From: Jerry L n6jp8...@gmail.com Subject: Re: [Elecraft] K3 Field-Test Firmware, rev 3.33 (Improved receiver low-frequency response) To: Wayne Burdick - N6KR, Elecraft wa...@elecraft.com Cc: elecraft@mailman.qth.net Date: Saturday, September 19, 2009, 12:13 AM Boy it really sounds good Wayne. AM broadcast quality. Outstanding job. I really like it! Jerry -n6jp- On Fri, Sep 18, 2009 at 11:49 AM, Wayne Burdick - N6KR, Elecraft wa...@elecraft.com wrote: Hi all, Thanks for your interest in the latest K3 field-test firmware (attached). It can be installed the same way as beta releases; see instructions on our web site. Please carefully read all the release notes for this revision, below. There are many changes besides the low-frequency AF improvement. One additional point I'd like to make regarding this. Remember that the K3 is a *communications* radio, first and foremost. This is why the NORMalized low end of the AF passband is set to 100 Hz in SSB and AM modes. (That's a 2.8 kHz WIDTH, a center frequency of 1.5 kHz, and thus a lo-cut value of 0.10 kHz.) Putting the filter low edge at 100 Hz at all three points in the receive chain -- crystal filter, 15 kHz IF, and AF -- minimizes adjacent-channel low-frequency QRM. Now, with the release of this new firmware, you can override our sensible low-frequency cutoff :) When you adjust SHIFT, WIDTH, or LOCUT such that the passband is skewed lower, you'll get much richer/fuller bass, but you are of course inviting additional QRM on the low end. So be ready to NORMalize again if necessary. Let me know how your testing goes. 73, Wayne N6KR MCU 3.33 / DSP 2.30, 9-18-2009 * IMPROVED RECEIVE LOW-FREQUENCY RESPONSE in AM, SSB and CW modes. (For best results, use headphones or external speakers with extended bass.) NORMalizing the DSP passband still sets the low-frequency bound to about 100 Hz in AM and SSB modes. But by using SHIFT, WIDTH or LO CUT, you can extend the audio response to around 50 Hz. User-configurable NORM1 and NORM2 settings, or presets I/II, can then be used to store desired values (per-mode). The two lowest MAIN:RX EQ ranges (50 and 100 Hz) can be used to further enhance bass. * SUB RX NOISE BLANKER NOW FULLY INDEPENDENT OF MAIN: This includes the on/off state and NB LEVEL settings. Note: Set CONFIG:NB SAVE to YES if you wish to keep the noise blanker ON even when changing bands. The NB on/off state is stored on a per-band basis for both main and sub receivers. * DSP INTERNAL ERROR MONITORING: The DSPs now do additional self-checking so they can automatically detect and prevent any type of rare AF output anomaly. If you hear anything unexpected, please report the associated information to Elecraft. While in the TECH MD menu entry, tap 1 (main) or 2 (sub) to display the most recent data, shown in hexadecimal. If it is “”, no error has been detected. After writing down the values, tap CLR to reset them, allowing additional errors to be trapped if necessary. * PL TONE DEVIATION ADJUSTABLE: Tapping '1' in CONFIG:FM DEV changes menu entry name to PL DEV and allows setting PL tone deviation from 300-600 Hz in 30-Hz steps (default is 360 Hz). * EU REPEATER 1750 HZ PL TONE BURST: In FM mode, if PL TONE is selected and the tone pitch is set to 1750 Hz (using the PITCH switch), a 500 ms tone burst at 1750 Hz will be transmitted on each activation of PTT. As a reminder, the -T icon will flash briefly at the start of each of each transmission, then turn off until you’ve finished transmitting. * EXTENDED 6-METER TUNING RANGE: The VFO can now be tuned down to 44 MHz to monitor signals that may be correlated with 6-meter band openings. Since the K3 has narrow band-pass filters, loss rapidly increases as the VFO is tuned below 49 MHz (-34 dB typ. at 45 MHz). If a preamp is in use ahead of the band pass filter (such as an Elecraft PR6), the noise figure may still be adequate for monitoring strong 44-49 MHz signals. * KEYPAD (1-9) SWITCH TONES WORKING FOR MV AND VM, M1-x: Some keypad switches weren't producing a dual tone during memory store/recall operations and message play. __ Elecraft mailing list Home:
Re: [Elecraft] K3 1800Khz Broadcast
Hi Steve, Are you sure it is WCER you are hearing? I am about 20 miles from Canton and I do not hear anything at all on 1800 Khz. However, I do hear their signal on 900 Khz S9 Plus. 73, John, KD8K Yes, I listened at 5pm to their ID. I can still hear them but much weaker at 10pm. It IS strange that you dont hear them on 1800 Khz. Steve -- View this message in context: http://n2.nabble.com/K3-1800Khz-Broadcast-tp3668547p3673355.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 1800Khz Broadcast
Yes, I listened at 5pm to their ID. I can still hear them but much weaker at 10pm. It IS strange that you dont hear them on 1800 Khz. Steve According to the FCC's database, WCER reduces power from 500-watts to 75-watts during their Post-Sunset Service Authorization (PSSA). This time of year, don't look for much interference of any kind after the late afternoon. http://www.fcc.gov/mb/audio/amq.html Paul, W9AC __ 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 Audio Response - Version 3.33 Firmware
I have attached links to three .JPG images of the K3's audio response as measured at the headphone jack with SpectraPlus FFT software. Response passband was normalized for both modes. SSB is measured through the 6K filter, and CW through the 8-pole 2.8 kHz filter. However, V3.33 SSB was taken with Fc = 1.35. It would have made more sense to capture the responses such that three SSB plots would overlay on one graph and three CW plots on a second, but that took too much time in waiting for the firmware to load between plots. Still, you can see radical differences between firmware versions in the kinks below. Rx Band-1 EQ seems operational now too :-)). http://216.229.20.37/images/K3-V325.jpg http://216.229.20.37/images/K3-V330.jpg http://216.229.20.37/images/K3-V333.jpg As you can see, CW with V3.25 has the strongest low-end response relative to 1 kHz, but that can be compensated for with the first two EQ bands. Even as it is, if you draw a horizontal line mid-way through the V3.33 plots, that represents roughly +/- 2.5 dB from 20 Hz through 3.5 kHz. Not too shabby for a communications receiver. As a further experiment, I just added 3 dB to Rx bands 1-3 and the response is now essentially +/- 0dB between 20Hz and 3.5 kHz in SSB through the 6K filter and Fc = 1.35. You can lay the ruler flat on the response. http://216.229.20.37/images/K3-V333-EQ.jpg Paul, W9AC __ 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 Audio Response - Version 3.33 Firmware
Nice!! Hard to ask for more than that :-) Grant/NQ5T On Sep 18, 2009, at 9:40 PM, Paul Christensen wrote: As a further experiment, I just added 3 dB to Rx bands 1-3 and the response is now essentially +/- 0dB between 20Hz and 3.5 kHz in SSB through the 6K filter and Fc = 1.35. You can lay the ruler flat on the response. http://216.229.20.37/images/K3-V333-EQ.jpg Paul, W9AC __ 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 firmware preview: Much-improved receive AF bass response
Wowee! This could save me the trouble of modifying DSP board hardware. I've asked to be a beta tester on this, as I often browse the AM stations and have a 13kHz filter installed. I have 2 x K3's to modify and the first one is already stripped down and the components to be removed are marked. I intended starting the mod after lunch today, viz in 45 minutes. 73 DaveL G3TJP __ 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 Audio Response - Version 3.33 Firmware
I spent much of the evening browsing AM shortwave stations and can confirm that the additional bass lift capability in 3.33 can be used to give a much warmer sound. I reduced the first couple of equaliser bands to +3dB and with the full bandwidth possible with a 13kHz filter, a slight shift below the FC Norm of 1.5 gives much warmer audio. I did find that adjustment varied depending on the voice being listened to in order to get the most satisfying result. In all cases, I did not go below the 1.05 setting to achieve the most satisfactory sound with most being around the 1.30 mark. Similar results were heard with SSB, and brought the K3 into line with good sound from my K2 and a comms Rx, both of which rendered a warmer audio than the K3 prior to beta 3.33. Many thanks, Elecraft. DaveL G3TJP __ 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 Audio Response - Version 3.33 Firmware
I've just been listening all evening with a big smile on my face :*) This is beautiful. Having the LF audio seems to make the entire spectrum sound better. Even QRN is more pleasant to listen to. Thanks Elecraft! What took so long? Why was bass chopped off in the first place? Steve N4LQ n...@carolina.rr.com - Original Message - From: Paul Christensen w...@arrl.net To: elecraft@mailman.qth.net Sent: Friday, September 18, 2009 10:40 PM Subject: [Elecraft] K3 Audio Response - Version 3.33 Firmware I have attached links to three .JPG images of the K3's audio response as measured at the headphone jack with SpectraPlus FFT software. Response passband was normalized for both modes. SSB is measured through the 6K filter, and CW through the 8-pole 2.8 kHz filter. However, V3.33 SSB was taken with Fc = 1.35. It would have made more sense to capture the responses such that three SSB plots would overlay on one graph and three CW plots on a second, but that took too much time in waiting for the firmware to load between plots. Still, you can see radical differences between firmware versions in the kinks below. Rx Band-1 EQ seems operational now too :-)). http://216.229.20.37/images/K3-V325.jpg http://216.229.20.37/images/K3-V330.jpg http://216.229.20.37/images/K3-V333.jpg As you can see, CW with V3.25 has the strongest low-end response relative to 1 kHz, but that can be compensated for with the first two EQ bands. Even as it is, if you draw a horizontal line mid-way through the V3.33 plots, that represents roughly +/- 2.5 dB from 20 Hz through 3.5 kHz. Not too shabby for a communications receiver. As a further experiment, I just added 3 dB to Rx bands 1-3 and the response is now essentially +/- 0dB between 20Hz and 3.5 kHz in SSB through the 6K filter and Fc = 1.35. You can lay the ruler flat on the response. http://216.229.20.37/images/K3-V333-EQ.jpg Paul, W9AC __ 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 No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.409 / Virus Database: 270.13.105/2380 - Release Date: 09/18/09 07:49:00 __ 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: Make Monitor level track AF level?
This was asked for in the past and it turns out that more people wanted it the way it is at the moment but it was not really a landslide it was fairly balanced. Personally I agree and would like the option to have it track the AF knob. But this hasn't really risen to the top of the list (if it even made the list) considering that it was the less popular option last time. ~Brett On Fri, 2009-09-18 at 13:35 -0500, Randy Farmer wrote: I'm finally coming to terms with K3 3260, born July '09. It's at last fully integrated into the station, and the diversity receive capability just blows what's left of my mind. This thing is like a race car: it rolls off the trailer pretty damn fast, but once you start fine-tuning it it just gets better and better. To further belabor the race car analogy, my trusty old FT-1000D is like a NASCAR stocker, big and heavy but a bulletproof performer. The K3 is like an Indycar or a Formula I car, maybe somewhat more delicate and fussy, but able to perform at a considerably higher level once it's set up and the driver learns to get the most from it. Now that I (mostly) know how to operate the K3, I suppose I'm qualified to start picking nits about how certain things work. The thing that bothers me the most is the Monitor function, especially for CW. For any serious DX or contest work I always use headphones, but I sometimes like to just grab the paddle and work somebody using the station speaker. I normally keep the Monitor level set at about 20-25, since that's what I find most comfortable when I'm using headphones. When I'm using the speaker, I can hardly hear the sidetone or the spot tone. If I go ahead and crank up the Monitor level to where I can hear it in the speakers, the next time I use headphones I'll forget to readjust the level and the sidetone will practically rip my head off. Unfortunately, the Monitor level is independent from the AF level so just turning down the volume, which I always do when using phones, doesn't keep me from getting blasted. What I would like to see would be a firmware change that allows the Monitor level to be adjusted to a percentage of the main receive level, or perhaps set to a specific offset value in dB, such that the relative levels between the main audio and the monitor signal always track as the AF control is varied. I take the audio from the K3 rear panel SPKRS jack to route into my station audio switching for either the headphones or the speaker, so I would rather see it done this way than by making a Monitor level change when the hardware detects that the phones have been plugged in. I've looked through the reflector archives and can't seem to find any posts that address my concern. That doesn't mean there aren't any; I just didn't see them. Does this suggestion sound like a useful firmware tweak to anyone else here? 73... Randy, W8FN __ 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] WTB: K3 13Khz Filter and/or BCB-BPF
I've been considering just ordering one on the site... Not really a need as I've already got the 8 filters in there that I like but I wouldn't mind being able to get the radio totally open just to allow for maximum flexibility. If anyone has a Broadcast Band BPF or a 13Khz filter that is surplus to their needs I'd may be interested. ~Brett __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K1 NB Modification
I remember somewhere on the net reading about some mods to make the K1-NB a little bit more aggressive. I've been unable to find this as of late and would like to in the event that a few free moments presents its self in the next month or so... Anyone recall where that may be? ~BTH (KC7OTG) __ 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
