Radio: it's not just a hobby, it's a way of life

Typical Operating Schedule

Usually QRV CW most evenings, tuning between 472.5 kHz and 475 kHz with CQ's on or near 474.5 kHz. Occasionally QRV JT9, 474.2 kHz dial + 1000 - 1350 Hz. QRV some mornings starting around 1100z on CW. Sked requests are welcome. All activity is noise and WX permitting

Decent propagation with quiet terrestrial and geomagnetic conditions although trans-Atlantic openings favor lower latitudes including ZF1EJ -> EA8BFK; Great domestic openings for JT9 and CW; G0MRF reports JT9 and FT8 QSO’s in Europe; SKN and the 2018 Grid Chase are upon us!

– Posted in: 630 Meter Daily Reports, 630 Meters

The details for December 29, 2016 can be viewed here.

The UTC amateur registration database is here.

The current band plan used on 630 meters can be viewed HERE

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 QSO!


It was another very quiet night for North America although, as recently stated, areas with precipitation may have experienced elevated static noise.  Northern and southern Europe through the Mediterranean and a few points in between experienced active, lightning-rich storms.  Japan, once again, experienced storms in the central population centers and Australia continues to experience strong storms although many population centers in the East are experiencing fewer storms and slightly less noise at this time.

11-hour worldwide lightning summary


Geomagnetic conditions remain at quiet levels. The Bz is near unity this morning and solar wind velocities are averaging near 390 km/s.  DST values continue to look very good, remaining at or above the centerline through much of this session.




Propagation was good, with a number of early transcontinental reports.  QSB was worse than recently observed but with low noise, the impact was not as prolific.  Trans-Atlantic openings favored lower latitudes while the path between Asia and Hawaii remain relatively strong.

Reverse beacon network reports follow:


Frank, W3LPL, reminds us that “Straight Key Night is 0000-2359Z January 1.  Any mechanical key — including a bug — can be used.” While I expect most activity to be spread out through the evening and overnight in typical fashion, if you are reading this and plan on being active on 630-meters at a specific time and frequency, send me a note on the CONTACT page and I will compile and distribute a list in hopes of maximizing your operating experience.  Frank added that “It would be great to hear 630 meters full of straight keys and bugs on January 1.   It could sound just like 500 kHz (kc?) in the old days except for the lack of chirpy transmitters.  I’ll on 630 meters and also on HF using my Viking Valiant and 75A-4.”

In addition to Straight Key Night, January 1 also means the start of the ARRL’s Grid Chase event, which includes QSO’s on 630-meters and 2200-meters.  Details can be viewed here.  Don’t forget to upload your logs to LoTW because it gives the ARRL statistics to show that there is interest in these bands.  As one of their staffers related to me when we were working to get MF and LF added to the event, they don’t have much understanding or frame of reference for these bands so we have to show and educate   them  about what is possible.

Jim, W5EST, submitted the following screen capture of his WSJTx console showing JT9 activity observed at his station in Little Rock, Arkansas:

courtesy W5EST


The following stations provided reports of their two-way QSO’s and/or any additional activity that might have occurred during this session (this is not necessarily a complete list – only what was reported!):

David, G0MRF, reported a number of FT8 and JT9 QSO’s from his remote site and he has hopes for continued activity into the new year.  David submitted the follow statistics:

Worked 5 stations:

DF8UO on JT9    sent -12 received -24

DL6RCN  on FT-8  sent -20  received -15

G0VQH + OR7T + LA3EQ  all on FT-8 with very big signals ranging from  -10  to +02

DG3LV  and DF6FM  both on JT9.    ( 7 QSOs in total for the evening.)

Screen shot from this evening’s FT8 activity. (courtesy G0MRF)


Equipment at the G0MRF remote station : IC7300 + amplifier and 12V PSU in rack. Switched mode PSU on top (left) (courtesy G0MRF)


Mike, K2LRE, completed evening CW QSO’s with AA1A and K4EJQ.  This morning, Mike indicated that he completed a CW QSO with “Bob”, which I believe is referring to K9KFR.

Ted, KC3OL, completed JT9 QSO’s with WA9CGZ and WB4JWM.

Bob, K9KFR, completed a CW QSO with AA1A and he might have also completed a CW QSO with K2LRE as previously reported.  Bob also completed a JT9 QSO with KA1R.

Matt, KA1R, completed JT9 QSO’s with VE3CIQ and K9KFR.

Robert, KR7O, reported that “Conditions started off strong with W7IUV in all day followed pre-SS receptions of NO3M on JT9.  K8TV popped in around 0155 and WA9CGZ from 0226-0239Z.  K9KFR copied for a few periods around 0500Z.  Extended propagation to NO3M from 0815-1013Z, followed by K2BLA.  TC WSPR spots from 18 stations, including:  KC4SIT (3/-25), K4SV (54/-14), W3LPL (3/-29), WD8DAS (-29) and ZF1EJ.

ZF1EJ 5 spots, -25

KL7L 15 spots, -18

K9FD 103 spots, -2

VK4YB 11 spots, -23

Robert added that he decoded K9FD about 30 minutes after his local sunrise in California:

1542  -24  -0.1    0.475617    0   K9FD”

Noise was very low at KB5NJD so many more weak, distant signals were detectable.  AA1A was one of these stations and this was the first time I have ever detected his CW.  I suspect JT9 would have been possible, even easy.  A number of stations were very loud, including K4EJQ, K8RYU and K9KFR and I completed a mid evening “initial” CW QSO with K3MF who was on a brief peak.  The band was in very good shape during this session and I look forward to SKN and the grid chase event in 2018.

Trans-Atlantic WSPR summary follows:




AA1A -> F59706, F6GEX, G0MRF, G8HUH, PA0O, PA0RDT


Trans-Pacific WSPR summary follows:

KL7L -> K9FD






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


Regional and continental WSPR breakdowns follow:

North American 24-hour WSPR summary


South American 24-hour WSPR summary


European 24-hour WSPR summary


Asiatic Russian 24-hour WSPR summary


African 24-hour WSPR summary


Japanese 24-hour WSPR summary


Indonesian 24-hour WSPR summary


Oceania 24-hour WSPR summary


Eden, ZF1EJ, reported sixteen WSPR stations and he received reports from 53 unique stations including YV7MAE and EA8BFK.  He shared two-way WSPR reports with K9FD.

ZF1EJ session WSPR summary


Martin, YV7MAE, reported three WSPR stations:

YV7MAE session WSPR summary


Laurence, KL7L, reported yesterday that he had to abruptly end his short vertical / QRP experiment due to an odor of electrical stress somewhere in the system.  He found the source, which was a badly burned U3S:

courtesy KL7L


Basically what happened was that he was operating the main 472 kHz station from the main Marconi, about 150 foot away from the short, 30-foot tall vertical resonated and tied to the U3S.  It seems like that at such a close range, the U3S was fed extreme voltage and current and would probably have been a sight to see while it was failing.  Note the BS170 FET’s that are completely burned from the RF board.  This could have been a lot worse but fortunately it wasn’t.

Laurence was QRT this morning but briefly reported three WSPR stations and he received reports from seven unique stations. He shared two-way reports with K9FD and KR6LA.  It appears that this session was using the normal, main stations and Marconi.

KL7L session WSPR summary


Merv, K9FD (/KH6), reported fourteen WSPR stations. He shared two-way reports with AH6EZ, JA3TVF, K2BLA, K4SV, KC3OL, KL7L, KR6LA, VK4YB, W3LPL, W5OXC, W7IUV, and ZF1EJ. Merv received reports from 49 unique stations including 7L1RLL4, JA1PKG, JE1JDL, JH3XCU, TNUKJPM and VK2XGJ.

K9FD session WSPR summary


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