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Current Operating Frequency and Mode

Probably QRT tonight and in the morning due to storms in the area

A few bright spots for the session but domestic openings were mostly flat in North America; Trans-Atlantic openings are impressive with several two-way reports using WSPR; Trans-Pacific openings continue to be plagued by strong storms in Oceania; W5EST presents: ”CW Recording of 630m QSB: W0RW Packs a Punch”

– Posted in: 630 Meter Daily Reports, 630 Meters

The details for November 17, 2016 can be viewed here.

The UTC amateur registration database is here.

HERE are a few mode-specific comments addressing where modes are located now and probably where they are best placed in the future

Operator lists detailing stations that are two-way QSO-capable can be viewed here.

Spot stations calling CQ on any mode here on DXSummit and help them find a Q.


The big story once again are the lightning-rich storms along the eastern coast of Australia.  VK2XGJ reported 20 dB over S9 noise in Sydney as he QRT’ed for self preservation.  Hopefully everyone down under followed suit.  An active storm is also West of Japan and probably impacting listening on the island.  The Mediterranean and Scandinavia are also experiencing active storms but judging by the number of trans-Atlantic reports, these storms may not have been a major limiting factor.  Atlantic storms are present at sea from the mid-Atlantic region to the Canadian Maritime’s and a few storms were present in the western US and Caribbean.  For what it’s worth, it was quiet in North Texas.

11-hour worldwide lightning summary


Geomagnetic conditions ranged from quiet to elevated-quiet levels  The Bz is pointing to the South and solar wind velocities are averaging near 442 km/s. DST values remain relatively close to the centerline with no clear long-range trend at this time.




Propagation was variable and as with many recent sessions, slow to develop after dark.  I would argue that there were elements that made this session on equal ground with the previous session with others that suggest it was a relatively poor evening.  Signals were generally down from the previous session but it was an active QSB night so if one waiting around long enough, a station would probably build to usable levels.  A few stations indicated difficulties in receiving reverse beacon reports but the reason is unclear (technical vs. propagation).

Reverse beacon network reports for the session follow:


PSKReporter select digital station distributions follows:

courtesy PSKReporter


David, G0MRF, posted this operational notice on the RSGB-LF reflector that hopefully will yield a few QSO’s.  Will any be trans-Atlantic?

“I’m going to give FT-8 and JT-9  a try this evening.  Probably only 40W TX output from my IC7300 + small amp, but my radio club’s antenna will help.  If anyone would like to try a QSO or just test their receiver, please feel free to reply, or a report via e-mail would be appreciated.  475.4  ish   20.30 – 23.00UTC

Sal, K1GRO, indicates that he is often operating QRSS4 on 475.85 kHz or 478.5 kHz as K1RGO/B.  I have informed Sal that there has been limited QRSS activity over the last few years with most beacon activity transitioning to WSPR.  Please have a look for his signal.

I am pleased to report that the ARRL has decided to reverse its original decision to exclude 630 meters and 2200 meters from the 2018 Grid Chase event.  Thanks to all who encouraged the ARRL to include our community in that event.

As with the previous few sessions, the band was slow to open at KB5NJD.  I would go a step further and say that overall the session probably was not as good as the previous but activity levels were different and timing of activity with respect to QSB can certainly figure into the result.  NO3M was CQing around 0141z when I completed a “drive by” QSO, sending a signal report, my call sign and 73.  In effect we exchanged RST 579 / 559 and Eric was on his way up, peaking RST 599 a few minutes later.  He stopped calling CQ before I could see whether the bottom was going to drop out again.  I made a few calls myself, finding that the reverse beacon network was rather stingy, giving me only one report at W3OA later in the evening and at levels that were right at the noise floor.  I operated a bit of JT9, completing a new QSO with N9RU.  I also worked ZF1EJ ands K9SLQ again.  I also received a -22 dB S/N “verbal” report from KR7O.  K4EJQ was active for part of the evening, calling CQ on 473.7 kHz CW and riding the typical QSB wave.  During one period in the early evening, W5EST reported me and K4EJQ at RST 599 suggesting that the band may have been ‘short’ at that time.  This morning the only reports I received were from Steve, KT5H, located in Arkansas.  He reported a noise problem that was resolved by shutting down his PC and monitor, allowing him to report my CW signal at RST 589.  I should also note that I got a late start today, not really beginning any listening or transmitting until around 1045z.  There were no reverse beacon reports and generally the band sounded flat.  Maybe tonight will be better.  I will probably continue the pattern of CW and JT9 during the evenings for the next few sessions.  We need something to stir up the geomagnetic field.

Trans-Pacific WSPR report details, excluding KL7 and KH6, can be viewed here.

Hideo, JH3XCU, submitted this link detailing DX -> JA decode totals and DX -> JA S/N peaks for the session, as reported on the Japanese language 472 kHz website.

Roger, VK4YB, reported “Lots of rain for lots of farmers, which is good. Not so good for listening, but 5 WSPR spots from ZF1EJ, the best at -23. I went to JT9 but never was heard beyond the Alberta twins.”  Roger received reports from JA1PKG, KJ6MKI, KL7L, KL7L/1, KPH, KR7O, N6GN, VE6JY, VE6XH and ZF1EJ. He shared two-way reports with K9FD.

Trans-Atlantic WSPR report details can be viewed here.  The trans-Atlantic WSPR summary follows:




PA0A -> AA1A





Ken, K5DNL, called CQ on JT9 during the evening and this morning to no avail.  On WSPR overnight Ken reported that he decoded fifteen stations and he received reports from 78 unique stations including twelve Canadian stations which Ken indicates was a record for his station.  Ken shared two-way WSPR reports with K9FD (/KH6),  ZF1EJ and VE7CNF.

Mike, WA3TTS, reported that he “Heard 18 on 630m, including K9FD (14 spots best -22 @ 0644, min -31 @1044), N6GN,ZF1EJ, W5EMC, & other usual suspects…”

Paul, N1BUG, reported “Lots of activity on several modes, notable G8HUH, DH5RAE.”

Neil, W0YSE, reported that he was hearing KR6LA’s WSPR beacon CW ID at RST 539 this morning.

Robert, KR7O, reported the following WSPR decodes: “ZF1EJ – 4 spots, -28, K9FD – 81 spots, -4, VK4YB – 7 spots, -24. W9XA was the only US station over 2100km. No copy from KL7L.”

There were 158 MF WSPR stations reported on the WSPRnet activity page at 0100z.  Regional and continental WSPR breakdowns follow:

North American 24-hour WSPR summary


European 24-hour WSPR summary


Japanese 24-hour WSPR summary


Oceania 24-hour WSPR summary


Eden, ZF1EJ, completed a JT9 QSO with KB5NJD.  On WSPR overnight, Eden reported twelve stations including VK4YB. He received reports from 46 unique stations and he shared two-way DX reports with K9FD (/KH6).  Select DX report details can be viewed here.

ZF1EJ session WSPR activity


Laurence, KL7L, spent this session testing two different antennas on receive.   He reported WSPR for the same five stations on each antenna, including VK4YB and K9FD.  Select DX WSPR report details for both antennas in this test can be viewed here.

KL7L session WSPR activity


KL7L/1 session WSPR activity


Merv, K9FD (/KH6), reported seven WSPR stations. He shared two-way reports with VK4YB and ZF1EJ. Merv received WSPR reports from 41 unique stations including JA1PKG, JA3TVF, JH3XCU and ZL4OL.  Select DX WSPR report details can be viewed here.  Merv added in an email that he was surprised to not hear more stations last night as his noise conditions have returned to relative normal levels.

K9FD session WSPR activity



“Day before yesterday in the evening, Paul W0RW sent CW that Andy KU4XR recorded for 28 minutes and posted to Dropbox. We’re talking about a path from Colorado into eastern Tennessee, or 1850 km CW reach.

The following morning, to acquire the audio strength levels, I played that web audio into the WSJT-X Echo mode 3 second sampler on my PC.  While listening to the playback I could hear a faint steady tone in the bandpass, but mostly band noise and W0RW transmitting.

Today’s illustration graphs that web audio (in blue). Here you see serrated peaks in signal strength representing W0RW’s minute-long CW transmissions interspersed with pauses.  You can see the signal envelope (in red) varying about 3 dB with roughly 3 minute (5-6 milliHertz) variation.  The signal faded entirely into the noise during the circled interval, so please ignore the circled artifacts there.

The noise level (in green) appears to vary, indeed varying independently of the signal level.  Some of the noise variation might result from receiver adjustments and some from actual noise propagation variations.

Looking at the illustration suggests two meanings that QSB has for us hams. One meaning is the signal strength variations themselves, indicated by the signal envelope (in red).  A second meaning is the readability, which more nearly relates to SNR, or peak-to-peak envelope (red minus green).   Other receptions may reveal even more dramatic independent variations of signal vs. noise.

Monitoring such 630m CW at these distances let us look at QSB on this 630m band when QSB means the difference between a QSO or No-QSO. On some nights or times of night, variations in band noise could be just as important to readability as variations in signal strength.

TU & GL on 630m CW!”

Additions, corrections, clarifications, etc? Send me a message on the Contact page or directly to KB5NJD gmail dot (com)!