[Elecraft] Elecraft Digest, Vol 263, Issue 17
Brian Collamer
kb1opd at gmail.com
Mon Mar 23 15:01:50 EDT 2026
I think this has been an issue for some time.
Here is a video from 11 years ago:
https://www.youtube.com/watch?v=cwxk4E01IfM&list=FLJDlKHD7Q3VCRPJ-mx-f5Og&index=9
Brian
On Mon, Mar 23, 2026 at 12:03 PM <elecraft-request at mailman.qth.net> wrote:
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>
> Today's Topics:
>
> 1. Elecraft 80M SSB Net Announcement (Dave New, N8SBE)
> 2. Elecraft 20M SSB Net Results: March 22, 2026 (Brian Maynard)
> 3. Re: K3 high SWR at end of transmission (w2yf)
> 4. Elecraft CW Net Report (kevin)
> 5. Elecraft 80M SSB Net Report (Dave New, N8SBE)
> 6. Re: Elecraft Digest, Vol 263, Issue 15 (Ronald Motyl)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 22 Mar 2026 15:08:09 -0400
> From: "Dave New, N8SBE" <n8sbe at densbe.com>
> To: Elecraft Reflector <elecraft at mailman.qth.net>, Elecraft K4
> <Elecraft-K4 at groups.io>, Main <main at elecraft-kx.groups.io>
> Subject: [Elecraft] Elecraft 80M SSB Net Announcement
> Message-ID: <77cbfea03c80d6dac19694bc2c51ae60 at densbe.com>
> Content-Type: text/plain; charset=US-ASCII; format=flowed
>
> Please join us on 3803kHz plus (not minus) QRM (see the Netlogger
> discussion, below), 9PM ET Sunday (0100Z 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.
>
> Your net control for this week is N8SBE, who will be operating remote
> from K1AV in Rhode Island (thanks Peter!).
>
> The group that meets on 3803 kHz before us has been wrapping up
> operations promptly at or before 9PM ET. There is also another group
> that normally comes on at 10PM ET, so we need to make sure to wrap up
> operations by 10PM ET. If any stations wish to continue past that time,
> please QSY to a clear frequency.
>
> If you are a US General class licensee, please ensure that your dial is
> accurately calibrated and that your transmitter/amplifier combination is
> clean and free of splatter, since we will be operating LSB within 3 kHz
> of the lower band edge of the 80M US General class band.
>
> If we find 3803 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, Hamshack Hotline RIP, HamsOverIP 101018, AmateurWire
> 1348
>
> ------------------------------
>
> Message: 2
> Date: Sun, 22 Mar 2026 19:37:03 -0400
> From: Brian Maynard <briankmaynard at gmail.com>
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] Elecraft 20M SSB Net Results: March 22, 2026
> Message-ID: <F26D5FF5-62F0-4144-912A-5F1D9C9C0686 at gmail.com>
> Content-Type: text/plain; charset=us-ascii
>
> Challenging band conditions today. Thanks to our relays: K1DIH (Brian) and
> N6JW (John), and Dave New for logging. Please join us next Sunday at 1800
> UTC on 14.3035 MHz. All Welcome!
>
> CI # Callsign Operator State Rig Notes
> 1 N8SBE Dave MI Off the air logger
> 2 N6JW John CA K3 #936 relay
> 3 WB7SKK Mike TX K3 #8912
> 4 WB9JNZ Eric IL FTdx101d net control
> 5 K6VWE Stan MI K4D #193
> 6 W1NGA Albert CO K4 #1473
> 7 K1DIH Brian CT K4D #1274 relay
> 8 K7BRR Bill AZ K4D #704
> 9 WB7S Jerry WY K3s #11545
> 10 W5GGO Sid TX IC-746Pro
> 11 K1NW Brian RI K4D #863 remote
> 12 KF5DMC Paul LA FT-950
> 13 K6FW Frank CA K4 #1083
> 14 NS7P Phil OR K3 #1826
> 15 W9PCS Paul WI K4D #620
> 16 WN8A Jim MI K3 #3480
> 17 KO5V Jim NM K2/100 #7225
>
>
> ------------------------------
>
> Message: 3
> Date: Sun, 22 Mar 2026 21:16:50 -0400
> From: w2yf <w2yf.radio at gmail.com>
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 high SWR at end of transmission
> Message-ID:
> <
> CA+_pMJZXt6kLYC8+L3kV8OP3ywWw5rRS6ayDqisakTywYaAD3Q at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> Bob,
>
> I was hoping PTT-RLS would do the trick, as I was reading the description
> it sounded like it would solve the problem. Unfortunately, tweaking this
> parameter didn't fix it.
>
> I tested my KX3, different radio, different computer, different
> everything... it does the exact same thing... so maybe the whole K-Line
> does this.
>
> It is problematic when you have software releases of WSJT-X that have a
> feature to auto-shutoff transmit when SWR exceeds 2.5, but of course it
> shuts off every iteration since it appears the radio is giving incorrect
> SWR values at close of transmission.
>
> I thought this would be a great feature, especially when mobile and antenna
> SWR can get a little edgy, but if the transmitter doesn't give correct SWR
> values, that feature isn't useful.
>
>
> Brian,
>
> Thanks for the extra data point... so I'm not the only one.
>
> Tom, W2YF
>
>
> ------------------------------
>
> Message: 4
> Date: Sun, 22 Mar 2026 19:04:26 -0700
> From: kevin <kevinr at coho.net>
> To: Elecraft Reflector <elecraft at mailman.qth.net>
> Subject: [Elecraft] Elecraft CW Net Report
> Message-ID: <cfcaf448-2f4a-4d4a-872c-de8b6c0bc6ab at coho.net>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> Good Evening,
>
> ? ?Twenty meters had little noise, with moderate QSB.? Without the QSB
> I would have missed some of you.? Forty meters had deeper QSB with more
> noise.? Both bands were not kind today.
>
>
> ? On 14050.5 kHz at 2200z:
>
> W0CZ - Ken - ND
>
> K4JPN - Steve - GA
>
> K6XK - Roy - IA
>
> K4TO - Dave - KY
>
> W8OV - Dave - TX
>
>
> ? On 7047.5 kHz at 0000z:
>
> K0DTJ - Brian - CA
>
> K6PJV - Dale - CA
>
>
> Until next week 73,
>
> ? Kevin.? KD5ONS
>
>
>
> -
>
>
>
>
>
> Escher https://www.youtube.com/watch?v=ldxFjLJ3rVY
>
>
>
>
>
>
>
> ------------------------------
>
> Message: 5
> Date: Sun, 22 Mar 2026 22:06:29 -0400
> From: "Dave New, N8SBE" <n8sbe at densbe.com>
> To: Elecraft Reflector <elecraft at mailman.qth.net>, Elecraft K4
> <Elecraft-K4 at groups.io>, Main <main at elecraft-kx.groups.io>
> Subject: [Elecraft] Elecraft 80M SSB Net Report
> Message-ID: <449279ac4ea8dbbf2f45d003531e7e23 at densbe.com>
> Content-Type: text/plain; charset=US-ASCII; format=flowed
>
> 3803 kHz, 9PM ET Sunday (currently 0100Z Monday).
>
> Thanks to the following check ins (w) and relays (rel):
>
> Call St Radio/Amp Name
> 1 N8SBE RI/MI K4D/KPA500 remote via K1AV and K8CGS MI Dave
> (w),(op)
> 2 WB9JNZ IL FTdx101d/KPA1500 Eric
> (rel),(w)
> 3 K8CGS MI K4D/KPA500 Greg (w)
> 4 K1DIH CT K4D/Tokyo Hi-Power Brian (w)
> 5 KE8TRL MI IC-7300 Blaine (w)
> 6 K4TM VA IC-7300mkII Cary
> (c/o),(w)
> 7 W9PCS WI K4D/KPA500 Paul (w)
> 8 AE1E TX K4D/KPA1500 Ken (w)
> 9 WM6P GA K4D/KPA1500 Steve
> (rel),(w)
> 10 WA1MAD MA KX3 15W Mike (w)
> 11 K1AV RI K4D/KPA500 Peter (w)
> 12 K1JIW MA FT-710 Harlan
> (c/o),(w)
> 13 W4CBS FL K4/Mercury IIIS Don (w)
> 14 N1QWI MA FT-450D Daniel (w)
> 15 VE1BAC NB FTdx101mp Brian
> (c/o),(w)
>
> (Entries with (c/o) indicate a 'one and done' station that checked out
> during the 1st round. (n/h) failed to respond during initial (was only
> checked into Netlogger) or subsequent rounds. (p) indicates a portable
> station. (m) indicates a mobile station.)
>
> We had a total of 11 check ins this week (including the NCS). Thanks to
> all the stations that helped with relays, and a big thanks to Peter,
> K1AV and Greg, K8CGS who hosted my K4D to their K4D connection from
> Michigan to Rhode Island and SW Michigan while my 80M antenna is down
> for construction at my QTH. I hope to see all of you again. The net
> concluded at 9:52 PM ET.
>
> We have a really great group of folks checking in, and I encourage
> everyone in the Midwest and adjoining areas to check in next week.
>
> As a reminder, if you go to https://netlogger.org at the net starting
> time and look for the 80M Elecraft SSB Net, you should see the frequency
> we are using that evening, if we must QSY due to busy frequencies.
>
> Also, check out https://hams.live to find out how to set up a multi-SDR
> receiver on your PC, which greatly aids in hearing folks during poor
> propagation or high noise levels.
>
> Also, also, please check out https://mikeg-dal.github.io/QK4/ for the
> latest QK4 K4/K4D remote software for Windows. This is currently Beta,
> so some things are not complete, yet, but I think you will find it quite
> interesting.
>
> 73,
>
> -- Dave, N8SBE
>
>
> ------------------------------
>
> Message: 6
> Date: Mon, 23 Mar 2026 09:45:25 -0400
> From: Ronald Motyl <rjmotyl at gmail.com>
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] Elecraft Digest, Vol 263, Issue 15
> Message-ID:
> <
> CAPQ7QJm-GhwYBVrVfaaBnnNCLvqfitKDU4RS9K4c7-FNrq0Dow at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> I've also seen the same issue with KX3 in DATA mode, WSJT-X improved, FT8
> (w/ Grid Tracker & L4OM, FWIW). Using the AX3 antenna connected with ? 10'
> RG-8X.
>
> This was using KX3 direct and with the KXPA100.
>
> Would a choke help resolve or reduce this issue?
>
> Is it unusual to see SWR jump / change that much during a transmission?
>
>
> Ron Motyl
> KJ2J
>
>
> On Sat, Mar 21, 2026, 14:17 Brian Collamer via Elecraft <
> elecraft at mailman.qth.net> wrote:
>
> > Hi Tom
> >
> > My KX3 does the same thing when using Hamlib with WSJTX....
> >
> > Brian
> > KB1OPD
> >
> > On Sat, Mar 21, 2026 at 12:04?PM <elecraft-request at mailman.qth.net>
> wrote:
> >
> > > Send Elecraft mailing list submissions to
> > > elecraft at mailman.qth.net
> > >
> > > To subscribe or unsubscribe via the World Wide Web, visit
> > > http://mailman.qth.net/mailman/listinfo/elecraft
> > > or, via email, send a message with subject or body 'help' to
> > > elecraft-request at mailman.qth.net
> > >
> > > You can reach the person managing the list at
> > > elecraft-owner at mailman.qth.net
> > >
> > > When replying, please edit your Subject line so it is more specific
> > > than "Re: Contents of Elecraft digest..."
> > >
> > >
> > > Today's Topics:
> > >
> > > 1. K3 high SWR at end of transmission (w2yf)
> > >
> > >
> > > ----------------------------------------------------------------------
> > >
> > > Message: 1
> > > Date: Fri, 20 Mar 2026 20:01:44 -0400
> > > From: w2yf <w2yf.radio at gmail.com>
> > > To: elecraft at mailman.qth.net
> > > Subject: [Elecraft] K3 high SWR at end of transmission
> > > Message-ID:
> > > <CA+_pMJYDgoywTd=-vE=-
> > > 41EMnkS9QLnCbPHnYGah1ow6tOPzHA at mail.gmail.com>
> > > Content-Type: text/plain; charset="UTF-8"
> > >
> > > I've run into an interesting issue:
> > >
> > > I get a high SWR report from the SW; command on a K3 -- only at the end
> > of
> > > a transmission cycle.
> > >
> > > Things I have tested:
> > >
> > > - Occurs on ANT1 or ANT2.
> > > - Occurs when LPA is engaged (5w) or PA is engaged (25w).
> > > - Always occurs, if transmission is 15 seconds long, or 3 seconds long.
> > > - Occurs on antenna matched at 1.3:1 and a perfectly matched dummy
> load.
> > > - Occurs with ATU engaged and without ATU engaged.
> > > - Is only at the end of transmission as the transmission envelope is
> > > falling off
> > > - I have calibrated the transmitter, identical results as above.
> > > - All coax has been swapped -- identical results.
> > > - SWR throughout entire transmission is 1.1:1, but then when PTT closes
> > it
> > > reports 20.9:1
> > > - Bar graph on K3 shows no SWR variance at all, from the bar graph
> > > perspective it is as if nothing is happening with SWR... this only
> > appears
> > > when polled via the "SW;" command (via Hamlib).
> > >
> > > Is this a known bug in the K3 firmware? Is it symbolic of hardware that
> > is
> > > on the edge of failure?
> > >
> > > The fact that it occurs only at the end of transmission and never
> during
> > > (regardless of length) is odd.
> > >
> > > Tom, W2YF
> > >
> > >
> > > ------------------------------
> > >
> > > _______________________________________________
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> > >
> > > End of Elecraft Digest, Vol 263, Issue 15
> > > *****************************************
> > >
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> ------------------------------
>
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> End of Elecraft Digest, Vol 263, Issue 17
> *****************************************
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