[Elecraft] Elecraft CW Net Report
Good Evening, Signals were strong on twenty meters with light, rapid QSB on a few of you. Propagation on forty meters seems correlated to sunset. The net began slightly after sunset. It is hard to tell exactly because of the clouds over the ocean. Signals are strong at first, with low noise. Then signals drop off and noise gets stronger. On 14050.5 kHz at 2300z: W0CZ - Ken - ND NO8V - John - MI K6XK - Roy - IA K4LAN - Lou - FL WJ7S - John - UT AB9V - Mike - IN K0DTJ - Brian - CA K4JPN - Steve - GA W8OV - Dave - TX On 7047.5 kHz at 0100z: W0CZ - Ken - ND K0DTJ - Brian - CA WM5F - Dwight - ID K6PJV - Dale - CA Until next week 73, Kevin. KD5ONS - The heights by great men reached and kept Were not attained by sudden flight, But they, while their companions slept, Were toiling upward in the night. __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] Elecraft 80M SSB Net Report
3806 kHz, 9PM ET Sunday (0200Z Monday). Thanks to the following check ins (w) and relays (rel): Call State Radio/Amp Name 1 N8SBE MIK4D/KPA500 Dave (w),(op) 2 W9PCS WIK4D/KPA500 Paul (rel),(w) 3 WB9JNZ ILFTdx101d/KPA1500Eric (rel),(w) 4 K6VWE MIK4D/KPA1500 Stan (w) 5 KF4BY SCK4D/Alpha 374A Stan (rel),(w) 6 K5WC ARK4D/Mercury Lux John (w) 7 K8NU OHK4D/KPA1500 Carl (w) 8 W8KEN OHK4D/KPA1500 Ken (w) 9 WN9A INK4D/KPA1500 Larry (w) 10 W8LVN ILK3s Bill (w) 11 K2RIG NJK4/Mercury IIIs BIll (w) 12 K1DIH CTK4D/Tokyo 1.5KfxBrian (w) 13 N0MPM IAK3s/KPA500 Mike (w) 14 WW4JF TNK3s/KPA500 JOHN (w) We had a total of 14 check ins this week (including the NCS). Signals were good all around. Thanks to Paul, W9PCS, Eric, WB9JNZ, and Stan, KF4BY for the relay assists this evening. 80M was in good condition, with some QSB. Very nice hearing from the new check ins and hope to see all of you again. The net concluded at 9:41 PM ET. We have a really great group of folks checking in, and I encourage anyone in the Midwest and adjoining areas to try to check in next week. As a reminder, if you go to https://netlogger.org at the net starting time, you should see the frequency we are using that evening, if we must QSY due to busy frequencies. 73, -- Dave, N8SBE __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Ham Antenna group...
On 1/7/2024 5:40 AM, Dave (NK7Z) wrote: Thanks for vote of confidence sir! I have a question for you... Have you been following the discussion on CMCs and if they are coax, or two wire, vs., constructed, and the results of impinged RFI on the cables feeding a rig I don't know about the group, and none of the discussion hasfound its way to me. I suspect that the discussion is based upon a lack of understanding of transmission lines by those who are concerned about it. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3S audio issue?
Hi gang! This problem seems a little strange. I can get full output on my K3S on CW and LSB, but very little if I switch to USB. On any band. Bad filter? I reloaded the firmware thinking there might be something corrupt, but no joy. Here’s hoping it is something simple. Ideas? Dave, AI7R __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Origin of Signal-Fine Structures in SSB Pass Band Waterfall, mainly 80/40m
Andy, You may wish to subscribe to this Google group: ham...@googlegroups.com and pose your questions there. There are a lot of folks on that list that are interested in scientific investigations into radio propagation anomalies. 73, -- Dave, N8SBE On 2024-01-06 14:29, Andy via Elecraft wrote: Hi Chris, Many thanks for your interesting EMI focused response. I had already some experts indicating this possibility of potential EMI originbut no... Yes, I agree EMI is a tricky issue as per standards/regulations/politics/ and technology. In some areas it is not main stream interest of some industries to avoid disturbance/interference in HF.-Spectrum. I am an EMC professional since 40 years.. EMI/RFI/EMC I can rule out because: 1.) The effect was also seen recently by a German HAM in a very quiet QTH 2.) I checked the radios (all RX ok on Dummy Load),. The effect it is not only visible on K3S P3 , but also on FTDX101MP, and direct front end sampling SDR RX Perseus. 3.) I took my mobile HF car setup and operated RX from separated battery, in very quiet location , and I could once see this propagation effect. So the propagation questions remain. Questions: 1. Is this an indication of Multi-Path Reception? May be with different propagation modes at that time over certain distances possible? 2. Is this therefore, e.g., based on delay times (phase/arrival time differences) of reflections from different ionospheric layers ( e.g. f1, f2 etc.) ? 3. Is this based on quasi simultaneous occurrences of skywave, NVIS and may be even groundwave mode ? 4.) I observed this “ shift effect” also sometimes for OTH-Radar (real or faked, yes some are faked, see my qrz.com under DQRM) signals recently on 40m, in EU late afternoon , night time here. Tnx, Cu, vy 73 de Andy HB9CVQ, DK2VQ, AK4IG https://www.qrz.com/db/HB9CVQ -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Chris Sent: Saturday, January 6, 2024 6:54 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Origin of Signal-Fine Structures in SSB Pass Band Waterfall, mainly 80/40m Hello Andy: I will offer some experience and opinion Your note implies that the interference is coming from the ionosphere, and you may be correct, but it is also worth considering that you may be looking at digital-based interference from local devices (in addition to possible distant signals coming from afar). Digital signals (square waves, waveforms with sharp edges) have very high spectral content (_many_ harmonics), so you may see many lines at constant frequency spacing all over the HF spectrum and beyond. Switching power supplies (inside electronic devices, wall-warts, etc), and digital signals from monitors, computers, routers, coffee makers, washing machines, (seems everything that plugs in these days has microprocessors), LED lighting, etc. can all cause interference like this. These sources may also shift or drift (slowly shift) due to changes in temperature or operating (power supply/load) conditions in the digital devices. In my experience the root causes of this kind of RFI are usually the digital devices, and possibly poor design for attenuation of the harmonics resulting from the oscillators generating the broadband interference lines. Not all oscillators are crystal based BTW, so they may have significant change in frequency over short or longer time spans. L-C and R-C circuits are just drifty. BTW, I would also try to see if the lines are from within the radio. Put the radio on a dummy load and look at the spectrum. If it is clean, then you can probably eliminate the problem as being internal (either hardware or signal processing software). Knowing Elecraft, I suspect that the problem will NOT be inside the radio, but it is a place to start. The solution to external RFI _should _be in the design phase of these devices. Design should include "right at the source" shielding of high frequency oscillators, power supplies and digital circuits which should use circuit layout which shields clock and data circuits with ground lines right in the PC board. If you let the signals escape the board, you now have to add ferrites and shielding on the wires leading to peripheral devices. It is far better to prevent the emissions at the source. But it seems to be cheaper to some manufacturers to ignore the problems and trust that your RFI generating device will escape scrutiny of regulators. Devices using high frequency signals are required by the FCC to be inspected and to have limits on their emissions. In practice it seems many devices, perhaps especially from overseas, have somehow eluded these certifications and can become real "firestorms" of RFI. Here in Colorado we have experience with grow-light power supplies that have strong emissions for miles around some "greenhouses" nearly wiping out the HF spectrum. In my own home, when I had ADSL/VDSL
[Elecraft] Elecraft 80M SSB Net Announcement
Please join us on 3806kHz (NOTE THE NEW FREQUENCY WHICH MOVES US INTO THE GENERAL CLASS BAND)plus or minus QRM (see the Netlogger discussion, below), 9PM ET Sunday (0200Z Monday). Note that the net stays on the same local time, when we switch back and forth to/from Daylight time, so the UTC time changes, but not the local time. Now that we have moved into Standard time and have shorter daylight hours, 80M should be stronger now during the winter. Your net control this week will be Dave, N8SBE. I'm using Netlogger, so if you go to netlogger.org and look for the 80M Elecraft SSB Net, you will be able to see the exact frequency we've settled on for the evening. If we find 3806 kHz busy, we will move UP the band a few kHz, so we can stay in the 80M US General class band. Hope to see you this evening on the net. 73, -- Dave, N8SBE __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] 40 meter net, Dec 31
This net is held every Sunday at 1900Z, 7.280 MHz. My thanks to Eric and others that may have been relay stations during my absence. WB9JNZ Eric IL Yaesu FT DX101D K9MTSMike IN Icom 756Pro N0MPM Mike IA K3S KY4USA Joe KY Icom 756 Pro II K6VWE Stan MI K4D NK9A Stan MI Yaesu FT 71 KD9RFW BrianIL Yaesu FT DX101MP AF1E Joe NC K4D W4DML DougTN K3 K8NU Carl OH K4D *Steve* *WM6P* __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 SUB-RX audio
Tnx Joe! That was the solution. 73, Evert PA2KW -Original Message- From: Joe Subich, W4TV Sent: Saturday, 6 January 2024 15:23 To: ev...@pa2kw.com; Elecraft Subject: Re: [Elecraft] K3 SUB-RX audio In Windows Sound Control Panel ... select the Recording tab then select "microphone (USB Audio CODEC)" - the KIO3B ... select the Advanced tab and make sure Default Format is to "2 ch, 16 bit, 48000 Hz (DVD Quality)" 73, ... Joe, W4TV On 1/6/2024 2:11 AM, ev...@pa2kw.com wrote: > Setup was: > > * K3 with SUB-RX and MicroHam MKII > * ANT 1 = TX antenna, RX-ANT (BNC) = Receive antenna. > > > > When using the SUB-RX (I think even in Diversity mode), with JTDX I > was able to “listen” to the Left audio channel which was the SUB-RX > (receive antenna) > > > > A while ago I installed the KIO3B board. All seems to work fine but…. > > Whatever I try to change, I’m not able to “listen” to the SUB-RX with JTDX > anymore. > > I do hear both receivers in my headphone Main = Right ear, Sub = Left ear. > > Is the Audio Codec signal a MONO channel or is it a setting in the K3 I > didn’t think of? > > > > Any help appreciated. > > > > 73, Evert PA2KW > > > > __ > 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 Message delivered to > li...@subich.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Ham Antenna group...
Was intended as direct email, not list email... Sorry... Jim please answer via direct email. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist, RFI ARRL Asst. Director, NW Division, Technical Resources On 1/7/24 05:40, Dave (NK7Z) wrote: Morning Jim, Thanks for vote of confidence sir! I have a question for you... Have you been following the discussion on CMCs and if they are coax, or two wire, vs., constructed, and the results of impinged RFI on the cables feeding a rig If so, do you have any thoughts on if there is any validity to this? __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] Ham Antenna group...
Morning Jim, Thanks for vote of confidence sir! I have a question for you... Have you been following the discussion on CMCs and if they are coax, or two wire, vs., constructed, and the results of impinged RFI on the cables feeding a rig If so, do you have any thoughts on if there is any validity to this? -- 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist, RFI ARRL Asst. Director, NW Division, Technical Resources __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] Friend is selling his P3
Hello, I am posting this for a friend, that has sold his K3, and is selling his P3, but not a member of this group, cut text from him follows: =CUT P3 for Sale, in 9 out of 10 condition, 100% functional, used in a non-smoking, pet free environment. Latest firmware installed. Included: SVGA add-on Power cable K3/K3S to P3 cable The Nifty Mini Manual for the P3 Printed Owner's Manual Elecraft Macro Programming book by Fred Cady KE7X (see pictures). Shipped and insured, $849. Will take Venmo, Postal Money Order or personal check, once cleared. This is a 100% fully functional panadapter for a K3 or K3S, however, all sales are final. I'm not an Elecraft re-seller. This is my own personal P3 that I used the day I boxed it. Pictures available upon request at nfarr...@gmail.com or go here: https://forums.qrz.com/index.php?threads/elecraft-p3-panadapter-w-svga.893398/ =CUT I am not connected to the sale of this device in any way beyond knowing the person for the past 15 or so years. Posting this as a favor to him. 73, Dave, https://www.nk7z.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Origin of Signal-Fine Structures in SSB Pass Band Waterfall, mainly 80/40m
On 1/6/2024 4:05 PM, Dave (NK7Z) wrote: I have some articles on this subject at: Dave's stuff is excellent. I'm also an EMC professional, long time Vice-Chair of the EMC WG of the Standards Committee of the Audio Engineering Society, principal author of most of our EMC Standards. And I've published a lot of research on the topic. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Origin of Signal-Fine Structures in SSB Pass Band Waterfall, mainly 80/40m
On 1/6/2024 9:54 AM, Chris wrote: Digital signals (square waves, waveforms with sharp edges) have very high spectral content (_many_ harmonics), so you may see many lines at constant frequency spacing all over the HF spectrum and beyond. Switching power supplies (inside electronic devices, wall-warts, etc), and digital signals from monitors, computers, routers, coffee makers, washing machines, (seems everything that plugs in these days has microprocessors), LED lighting, etc. can all cause interference like this. You are entirely correct about this being the primary cause of all of us being varying degrees of deaf. See my tutorial on chasing noise to build contest scores at k9yc.com/publish.htm 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
