Last night was interesting. Much like a session from a few nights ago, conditions were strong but very selective, as if the “spotlight” had been narrowed and moving around quickly. This meant that while one station might report +6 db S/N for my signal, a group of others might be near the detection limit, on paths that are normally solid in full darkness this time of year. Doug, K4LY / WH2XZO, reported similar results in the evening, seeing a 10-db deficit on some reports and it made him think there was an antenna problem in spite of normal SWR and power levels. Inspection this morning confirmed that there were no problems other than fickle propagation.
The band was very quiet. Near sunset I called CQ on 474.5 kHz CW and noted a smooth noise level of S0 on the receiver. That noise level was observed while listening with the transmit vertical. That level of performance tends to be the rule rather than the exception during December, at least from this location.
The geomagnetic field was quiet and stable. The Bz component was southerly through the North American evening but stabilized near sunrise.
The Kyoto DST was very stable through this session.
Participation was extremely high, much higher than the previous few sessions, with active MF stations numbering in the 80’s through the late evening. There were also reports from stations that are recently new to reporting on 630-meter WSPR. These include N9MT, W9MDO, VE3AE, and VE7KPB.
The Worldwide WSPR activity breakdown follows:
Trans-Atlantic reports were once again plentiful for stations in the north east although no North American stations were reported in Europe.
Mike, WA3TTS, had a very nice session and included the follow note and screen shots:
Mike also made a You tube video documenting the band conditions:
In the Caribbean, Eden, ZF1EJ, and Roger, ZF1RC, were both active. Roger’s best distance through the session was Larry, W7IUV / WH2XGP, and Eden made it out to Merv, K9FD/KH6 / WH2XCR.
In Alaska, Laurence, KL7L / WE2XPQ, had a strong session. Note that K2UFT is a real station in Georgia, but it seems this spot was a phantom that also happened to be dumb luck that it was a real call sign.
In Hawaii, Merv, K9FD/KH6 / WH2XCR, had a very good session also, with the return of the path to VK in both directions. Merv also had reports from JA and stations on the east coast of the mainland US.
John, VK2XGJ, sent a screen shot of his console, including the waterfall where Merv’s signal can be seen near the bottom during the 0916z frame:
This morning’s CW session yielded a report from Bill, N3CXV / WH2XRR, who indicated that my signal was RST 559 at 1122z. My daily CW sked began at 1136z and at 1200z I returned to WSPR2.
Additions, corrections, clarifications, etc? Send me a message on the Contact page!