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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

Great night in western North America, supporting many North and South openings including CW and JT9 for KL7L -> W0YSE, NC0B, K9FD, VE7CNF, N6PIG, VA7MM; Most evening activity in the East washed out by Atlantic storm noise; Trans-Atlantic openings are down but trans-Pacific paths between JA and KH6, KL7 and VK continue including JA3TVF -> K9FD

– Posted in: 630 Meter Daily Reports, 630 Meters

The details for January 13, 2017 can be viewed here.

The UTC amateur registration database is here.

Working grids for the first time in 2018? Be sure to upload your logs to LoTW so the 630m operators participating in the 2018 Grid Chase Event can receive credit. Details on LoTW can be viewed here.

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

WAS operator list 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


At a minimum, the eastern half of North America struggled with high noise during this session due to storms that stretched the length of the eastern seaboard into the Caribbean and South America.  It was a miserable evening of listening to the East but the West was quiet.  Europe was mostly lightning free except for Portugal and the eastern Mediterranean which has been an ongoing hot spot.  The Pacific Rim is active from Japan through Australia and New Zealand.  Eastern coastal population centers of Australia and the North Island of New Zealand continue to be inundated with lightning.

11-hour worldwide lightning summary


Geomagnetic conditions remain quiet.  Unsettled geomagnetic conditions are forecast for coming sessions due to a geoeffective coronal hole according to Solarham.   The Bz is pointing to the North this morning after many periods of neutral reports and solar wind velocities are averaging near 340 km/s. Proton concentrations are elevated to moderately high levels with 21 p/cc reported for a number of reporting periods.  DST values are stable and remain near the centerline.




Domestic propagation was probably similar to previous sessions but elevated noise levels likely made the band feel worse than it really was.  Western portions of North America once again fared the best where noise levels were lowest.  North and South paths were dominant in the West.  Trans-Atlantic openings were fewer than previous sessions while trans-Pacific openings, particularly to and from Japan, were plentiful.

Reverse beacon network reports follow:


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

courtesy W5EST


Hans, DK8ND, posted the following operational announcement on the RSGB-LF reflector:

“this weekend I will call cq with my new tx on 472,50 kHz in the evening, abt 19. 00 utc on saturday and sunday. Please lisn to my sigs. Mode cw aural cw.

TX: ENI 3200 AMT, driven to 250W…600W (max. abt -1,5db(kW)/ 60 Ohm, aereal Marconi 20 m, loc jn48qq. The Aereal is fed via an transformer 50 Ohm/55 Ohm and a loading coil abt 350 mH.  More details about request.

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!):

Toby, VE7CNF, completed a JT9 QSO with KL7L.

Rob, NC0B, reported JT9 QSO’s with KL7L, NO3M, K9KFR and N6PIG.  Rob indicated that he was up late, allowing him to work Laurence and notes that “Later on in the evening he peaked to -16 dB, with several -22 dB decodes.  I worked K9KFR as soon as the band opened, then N6PIG I think for the first time 5 hour later, KL7L a little after 10 PM local, and finally NO3M after midnight when he was looking for Laurence.  WX was 10 degrees F, and after midnight the antenna started icing up and was off tune.”  Rob also noted that “Now with HI and AK worked, I need to keep looking for new stateside stations on the band for what may be a challenging attempt at WAS.  I missed W0SD in SD a weekend or two ago, and unfortunately I haven’t heard him since.

Neil, W0YSE, reported a very active and pleasurable session completing a number of QSO’s.  He offered this extensive report with exhibits:

“It was a fun evening for several of us in the PNW last night. Laurence, KL7L and I had a JT9 QSO right after he finished with Merv, K9FD in Hawaii.  I was not able to decode Merv. 

Laurence went on to have a banner night on JT9. Sometimes his JT9 tone was 569, so I told him I was going to put out some CW down around +600 (474.8). Soon he heard me and we had a CW QSO. Laurence sent me a 529, but I could only send him a 229 at the time due to a warbling carrier near him. 

I continued on CW with Q’s  with Mark, VA7MM and with Roger, VE7VV. The QSB was deep but not long lasting. Mark and I were  599’s to each other on peaks. [VE7VV/W0YSE CW QSO recording follows]

Other JT9 stations I saw on my screen were VE7BDQ, N6PIG, VE7SL, NC0B, K9KFR (-26), and NO3M (-23). 

On WSPR, I was heard by 30 stations. Here are the DX ones…(only 1 spot by Eden, ZF1EJ)

….and I heard these WSPR stations: AE5X, K5DNL, K9FD, KA7OEI, KL7L, KR6LA, KR7O, NU6O, and VA7MM

All of the above activity was done using my original GW3UEP amplifier which I had just finished rebuilding yesterday afternoon. It just barely puts out 2w EIRP. The amp I had been using for the past 6+ months that I got from Ron, NI7J puts out an additional 2 dB, so I will probably put it back online for regular service and use my old one as a backup.

Ken, K5DNL, completed a JT9 QSO with K9KFR during the evening.  Using WSPR overnight, Ken reported twenty stations and he received reports from 78 unique stations including YV7MAE  and nine Canadian  stations.  He shared two-way WSPR reports with ZF1EJ, K9FD (/KH6) and KL7L.  Ken also has a number of products available for sale including amplifiers, low pass filters and scope match sensors, on his website, K5DNL.COM.

Robert, KR7O, reported “Interesting conditions last night.   It started out looking like another dead night, so I decided it was time to do some amp tweaking.  Pretty much west coast propagation and no TC was noted early on, but around 0500Z KL7L and K9FD were reporting my WSPR signals.  Around that time there was a flurry of JT9 activity including K9KFR, NO3M and KL7L plus several PNW stations making contacts.  NO3M and KL7L were still copied until 0919Z looking for a potential path.  Laurence was as strong as -9 on JT9.

On WSPR I was copied by 21, including W0DJK, KL7L and K9FD.  I copied 14, W4BCX (2, -28) and K2BLA (-25) were the only TC stations copied.  This is the first time in maybe a week to copy anyone from the SE.

KL7L 49 spots, -5

K9FD 92 spots, -7

VK4YB 1 spot, -28″

Al, K2BLA, reported “Lightning crashes S9+ last night and after a few WSPR transmissions shut down to save energy. Lightning still there this AM but much lower. No activity on JT9. WSPR: heard by 42 including YV7MAE and heard 16 including K9FD. Rain is finally gone and antenna has dried out and the wandering SWR is now low; virtually 1:1, so running full power again.”

Trans-Atlantic WSPR summary follows:




PA0A -> AA1A


Trans-Pacific WSPR summary follows:







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


Japanese 24-hour WSPR summary


Indonesian 24-hour WSPR summary


Oceania 24-hour WSPR summary


Eden, ZF1EJ, reported fourteen WSPR stations and he received reports from 48 unique stations including LA2XPA and YV7MAE.  He shared two-way WSPR reports with K9FD.

ZF1EJ session WSPR summary


Martin, YV7MAE, reported five WSPR stations.

YV7MAE session WSPR summary


Laurence, KL7L, reported “Nearly a “Goldilocks iono” (not too much energy, not too less, just right) last night for the US from here –  and just a little too much noise East.”  He completed a number of JT9 QSO’s with several stations including NC0B, W0YSE, K9FD, N6PIG, VA7MM and VE7CNF.  Laurence also completed a CW QSO with W0YSE and an attempt with VE7VV.  Laurence added he “…just needed another dB into the ear drum here. VA7MM reported R 5 CW sigs too.”  Signals were progressing to the East overnight and there was a very late night vigil held with NO3M in hopes of making that very long QSO a reality.  It was not to be during this session, however and Laurence offered these comments:

JT9 back and forward with Eric netted very interesting rx  reports from short openings to IL and Kansas, but just couldnt persuade it up a little more ENE. At that time I was very strong to the twins. Maybe a light Blue blur from Eric here but needed a little more path

Laurence also reported ten WSPR stations and he received reports from 24 unique stations including 7L1RLL4, JA1PKG, JA3TVF, JE1JDL, JH3XCU and TNUKJPM. He shared two-way reports with K5DNL, K9FD, KA7OEI, KR6LA, KR7O, NU6O, VA7MM, W0YSE and W7IUV.  Neil, W0YSE, reported that his last decode of Laurence came at 1542z (0742 PST.  SR is 0748 PST):  “1542 -23 -1.2   0.475690  0 KL7L BP51 23

Laurence added that “Signals to PNW/CO were strong at times, with CW IDS heard from many WSPR stations.  3 CQs on JT9 from VK4YB on the screen around 1234-1300z, one ‘strong’ – 1250 -18  0.0 1101 @  CQ VK4YB QG62      !Australia – Probably one of the strongest nights Ive heard for a year.  I lost a side pull halyard sometime early on, so the top cap was whipping around a bit causing variable tuning but it all held together…

KL7L session WSPR summary


Merv, K9FD (/KH6), completed a JT9 QSO with KL7L.  Using WSPR overnight, Merv reported fourteen stations. He shared two-way reports with AE5X, JA3TVF, K5DNL, KA7OEI, KL7L, KR6LA, KR7O, NU6O, VA7MM, VK4YB, W0YSE, W7IUV and ZF1EJ.  Merv received reports from 37 unique stations including JA1PKG, JE1JDL, JH3XCU and TNUKJPM.  He also received post-sunrise reports from JA1PKG.

K9FD session WSPR summary


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