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

Current Operating Frequency and Mode

OFF AIR; QRT Thursday night but back Friday morning by 1100z

Good trans-Pacific openings but domestic conditions down slightly OR fewer receive stations?

– Posted in: 630 Meter Daily Reports, 630 Meters

This session was relatively consistent with recent sessions.  Evening noise  was higher than morning noise and the trans-Pacific path was open for many QRO stations.  After adjusting WSPR decode totals for my lower transmit cycle percentage, the session may have been down slightly but it may have been the result of fewer receive stations in the South and East due to evening storms.  Propagation seemed pretty good with a significant number of reports at CW-levels.  It was very quiet here this morning as the bulk of the storm QRN was located in New England and eastern Canada.


10-hour North American lightning summary


Geomagnetic conditions were quiet to very quiet.  The Bz is currently pointing to the South, however, and solar wind velocities are averaging 340 km/s, in the low category.  DST values are currently near nominal.







The trans-Pacific path once again did not disappoint with thirteen stations reporting stations on the opposite ends of the path.

Ward, K7PO / WH2XXP, was decoded by 35 unique stations including six VK stations. John, VK2XGJ, notes early reports from Ward during his session, as early as 0812z:


WH2XXP session WSPR activity (courtesy NI7J)



WH2XXP, as reported by EJTSWL



WH2XXP, as reported by VK2DDI



WH2XXP, as reported by VK2XGJ



WH2XXP, as reported by VK3ELV



WH2XXP, as reported by VK4YB



WH2XXP, as reported by VK5ABN



VK2XGJ WSPR console showing very early reports from WH2XXP


Larry, W7IUV / WH2XGP, reports that he decoded eleven WSPR stations but no East coast stations as he was listening with the western RX antenna.  He was decoded by thirty unique stations including five VK’s and both stations at ZF1EJ.  Larry notes that there seemed like there were fewer eastern reporting stations than the previous session:


WH2XGP, as reported by EJTSWL



WH2XGP, as reported by VK2XGJ



WH2XGP, as reported by VK3ELV



WH2XGP, as reported by VK5ABN



VK4YB, as reported by WH2XGP



WH2XGP, as reported by VK4YB


Ken, K5DNL / WG2XXM, reports that he decoded six WSPR stations and was decoded by thirty unique stations, including VK4YB:


WG2XXM, as reported by VK4YB


Joe, NU6O / WI2XBQ, was decoded by VK4YB and reports that he has completed some major ATU improvements in an effort to reduce chances of arc-over and fire.  Early results suggest that impedance is significantly more stable:


WI2XBQ, as reported by VK4YB


Roger, VK4YB, was decoded by Steve, VE7SL, during this session:


VK4YB, as reported by VE7SL


Steve, VE7SL, spent the session checking out his recent switching project, running 10-watt TPO JT9 during the session.  This morning’s conditions did not permit a QSO attempt with Roger, VK4YB, however, and something happened near the end of the test that appears to have resulted in a FET failure.  Steve indicates that this was the first failure in six or seven years so it will be interesting to see what the post-mortem reveals.  I suspect he will be operational again tomorrow.

Neil, W0YSE/7 / WG2XSV, provided the following transcript of VE7SL reports prior to 0500z during the low power testing (A complete JT9 transcript from Neil can be viewed here):

0238 -22  0.1 1102 @ VE7SL 10W TPO
0240 -22  0.0 1102 @ VE7SL 10W TPO
0242 -18  0.1 1102 @ VE7SL 10W TPO
0244 -23  0.6 1102 @ VE7SL 10W TPO
0248 -25  0.2 1102 @ VE7SL 10W TPO
0250 -26  0.1 1102 @ VE7SL 10W TPO
0254 -26  0.2 1102 @ VE7SL 10W TPO
0328 -28 -0.2 1102 @ VE7SL 10W TPO
0342 -28 -0.2 1102 @ VE7SL 10W TPO
0348 -27  0.2 1102 @ VE7SL 10W TPO
0354 -12  0.1 1102 @ VE7SL 10W TPO
0356 -12  0.5 1101 @ VE7SL 10W TPO
0404  -9  0.2 1102 @ VE7SL 10W TPO
0406  -8  0.2 1102 @ VE7SL 10W TPO
0408  -9  0.7 1102 @ VE7SL 10W TPO
0410 -12  0.5 1102 @ VE7SL 10W TPO
0412 -13  0.5 1102 @ VE7SL 10W TPO
0414 -25  0.3 1102 @ VE7SL 10W TPO
0418 -17  0.1 1102 @ VE7SL 10W TPO
0420  -9  0.1 1102 @ VE7SL 10W TPO
0422 -16  0.1 1102 @ VE7SL 10W TPO
Neil also provided an interesting capture from his WSPR console showing three stations that appear to be in sync with their transmit cycles, almost like synchronized swimming as Neil described it:

WG2XSV WSPR console showing the lack of randomization for  three stations, persistently transmitting in the same cycle


He also provided these receive-only statistics from the session:



Doug, K4LY / WH2XZO, reports on his session in addition to providing a response and additional comments regarding recent discussions by W5EST:

“QRN continued here as storms and lightning moved east with New York/New England especially hard hit.  The west coast apparently was quieter as WH2XZO had first of the season decodes by WH2XAR plus 8 decodes by VE7SL.  We decoded WH2XGP 15 times.

Thoughts and speculations-

In reference to the W5EST path analysis, it’s always enlightening to look at the great circle paths and their relation to the auroral zones.  Any great circle path near the auroral zone is almost always a disturbed path.  All of Europe including Gibraltar and the southern-most islands of Italy and Greece are at a more northern latitude than Tokyo in central Japan.  Europe is far north by comparison, and except from Florida, all U.S. paths skirt the auroral zone.

For instance, WH2XZO in western SC has the same path to Germany as a NYC or Boston station that skirts the auroral zone near Greenland.

West coast and, even Colorado where I lived for 19 years, has a much less disturbed path to JA, but a very difficult path to Europe.  On 160M, I could sometimes work JA with 5 watts, but it took at least 500 watts to work Europe, a 20 db penalty of the auroral path, and most nights there was no 160M Colorado to Europe path open.

Trans-equatorial paths by comparison are easy, and often improve with disturbed conditions.  I think a WH2XXP type station here in the southeast would be decoded regularly in VK,  probably more often than he would be decoded in Europe.”


Clemens, DL4RAJ, reported the following on the RSGB LF reflector:

“WSPR decodes have not been bad either
(here just some unique spots of the most distant stations):

2016-09-10 22:26   F6CNI   0.475600   -32   0   JN19qb   0.001   DH5RAE  JN68qv   730 km
2016-09-10 22:12   F6CNI   0.475615   -26   1   JN19qb   0.001   DL4RAJ   JN68kj    700  km
2016-09-10 22:40   F6CNI   0.475615   -25   0   JN19qb   0.001   DL6RCN  JN58kg   558  km
2016-09-10 21:46   F6CNI   0.475629   -28   0   JN19qb   0.001   DK7FC/P  JN49ik   389  km
2016-09-10 22:40   F6CNI   0.475616   -26   0   JN19qb   0.001   DC0DX     JO31lk   367  km
2016-09-11 10:00   F6CNI   0.475619   -30   0   JN19qb   0.02     PE1RKT   JO22fb   342  km
2016-09-10 22:26   F6CNI   0.475614   -26   1   JN19qb   0.001   PA3ABK/2  JO21it   320  km



Edgar, EJTSWL, similarly posted some of his evening “unique” reports:

“Timestamp           Call           MHz       SNR    Drift   Grid       Pwr   Reporter    RGrid      km         az
2016-09-11 12:02  WH2XGP  0.475689  -26       0      DN07dg      5    EJTSWL   QE37pd  13534      239
2016-09-11 11:42  WH2XXP   0.475663  -24       0      DM33       10    EJTSWL   QE37pd  13182      235
2016-09-11 11:34  WH2XCR   0.475750  -25       1      BL11je       1    EJTSWL   QE37pd    9104      218
2016-09-11 11:42  VK4YB      0.475626    -1      -1      QG62ku     5    EJTSWL   QE37pd    1818      195
2016-09-11 10:32  VK5FQ      0.475706   +1       0      PF95gc      1    EJTSWL   QE37pd    1163      142
2016-09-11 10:46  VK3ELV     0.475773   +8       0      QF33bq     5    EJTSWL   QE37pd     734       173
2016-09-11 12:04  VK3HP      0.475611  +16       0      QF21nt   0.5    EJTSWL   QE37pd      550       161

Regards, Edgar
Moonah, Tasmania.”


Rick, W7RNB / WI2XJQ, reports good conditions from his QTH.  He was definitely hearing well last night:



I completed a number of projects this weekend so that I could make room for the upcoming receive antenna project.  In addition to porting the PC-driven CW keying for calling CQ in events like the upcoming Berlin Treaty special event in November, I was also able to add the ability to easily listen with the transmit antenna on the “new” waveform-shaped combined CW amps.  Since their addition I have only been able to listen with the receive antennas.  During the quiet of Winter, however, having the large aperture antenna has been very helpful in pulling out weak signals so its nice to have the same functionality as I currently have on the digital mode station.

Regional and continental WSPR breakdowns follow:


North American 24-hour WSPR activity



European 24-hour WSPR activity



Australian 24-hour WSPR activity



Asian 24-hour WSPR activity


There were no reports from the trans-Atlantic or trans-African paths during this session.

Eden, ZF1EJ, produced a number of reports for stations in the Southern US plus WH2XGP in Washington state:


ZF1EJ 24-hour WSPR activity



ZF1EJ/1 24-hour WSPR activity


Laurence, KL7L / WE2XPQ, reports that the gale-force winds and rain from the previous session in England have had an unintended consequence that will likely limit his activity for the remainder of the trip.  Laurence operated his portable receive stations from his parked car overnight and had to leave a window slightly open to allow coax through for the antenna.  It seems that rain got into via the “cracked” window and has damaged the PC used for decoding.  No further details are available but it seems that Laurence is QRT for the moment while he remains on the road.

Merv, K9FD/KH6 / WH2XCR, had another strong night into VK, including reports from VK7TW.  He also continues to decode loud stations on the West coast.  I was fortunate to be the easternmost station to decode him through this session.  Merv adds: “Wow John,  VK4YB must be on a floating island moving closer to me all the time..See his last decode was 30 mins after my sunrise,  sunrise here us 1614Z  he has the last decode at 1642Z.  Unreal..  Propagation seems to be stuck about your area most nites..Interesting.. would have thought east coast would sneak through more by now.”.  Note that below I missed the 1642z report from VK4YB but have appended it to the top of the raw data below:


WH2XCR 24-hour WSPR activity



VK4YB, as reported by WH2XCR



Originally omitted report from VK4YB 30 minutes after sunrise in Hawaii



WH2XCR, as reported by VK4YB



WH2XCR, as reported by VK7TW



WH2XCR, as reported by VK5ABN



WH2XCR, as reported by VK3ELV



WH2XCR, as reported by VK2XGJ



WH2XCR, as reported by VK2NP



WH2XCR, as reported by VK2DDI



WH2XCR, as reported by EJTSWL


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