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

Current Operating Frequency and Mode

OFF AIR for storms, probably for much of the week if the forecast holds

Early trans-Atlantic reports suggested good session ahead and path didn’t disappoint; PY2GN gets noise relief from his utility; WH2XCR reports decent, early openings to Ukraine on 160m – does that mean a good night ahead on 630m?

– Posted in: 630 Meter Daily Reports, 630 Meters

The band was a bit noisier this morning, with distant lightning crashes observed more frequently than in the previous session.  Storms along the gulf coast and off of the coast of the southeastern US appear to be the source.  The band was quite serviceable, however, particularly at mid and lower latitudes.  The evening was characterized by early trans-Atlantic reports but its unclear whether this event was due to a propagation anomaly  or simply operators being present earlier than normal.  The band yielded typical reports around North America during the evening for many stations and while the band was different from the previous session I can’t label conditions as poor.  Trans-Pacific openings were reported to be slow to develop.


11-hour North American lightning summary


Geomagnetic conditions have been quiet with a Bz that has pushed to the North.  Solar wind velocities have decreased to an average of 450 km/s and DST values have stabilized near nominal levels.







Trans-Atlantic openings continue to impress as early decodes are observed by N1BUG, who reports that EA5DOM was decoded eight minutes after local sunset and G8HUH 24-minutes after local sunset.  Geoff, G0LUJ, also noted that WD2XSH/17 was reported very early, with a report at 2134z.  WD2XSH/17 decoded EA8DOM and G8HUH and was also decoded by DK7FC/p, DL-SWL, F1AFJ/1, F59706, F5WK, G3XKR, G8HUH, and PA0RDT.  WG2XKA was reported by F59706, G0LUJ-1, G3XKR, G8HUH, and PA0RDT.  WG2XXM was reported by F1AFJ/1 and F59706.  Trans-Atlantic report details for this session can be viewed here.

John, WA3ETD / WG2XKA, provided these comments and details from this session after a good night of trans-Atlantic reports:

“Weather and holiday issues have resulted in a somewhat erratic operation schedule here at XKA.  However, this ice truncated session resulted in significant
T/A activity, with multiple reports from F59706, PA0RDT, G8HUH, G3XKR and G0LUJ-1.  A -21 from WH2XCR was the best of five spots from Merv.  Most of the usual suspects were also active here.  My RX has been seriously impacted by several LED projectors nearby….”


WG2XKA session WSPR activity


Ken, K5DNL / WG2XXM, reports that he was decoded by 61 unique stations including F59706, F1AFJ/1, WE2XPQ, and WH2XCR.

Neil, W0YSE/7 / WG2XSV noted transcontinental decodes of his signal with this report:


Joe, NU6O / WI2XBQ, reported that “skip seems short” from northern California with only nine stations reporting, all on North and South paths, as of 0307z.  At 1548z Joe reported of the session: “An unremarkable night, only heard by 11, best DX 1178 Km, other than to XCR.”

Rick, W7RNB / WI2XJQ, provided reports for nine WSPR stations and was decoded by 23 unique stations.  Rick’s unique report details can be viewed here.

Trans-Pacific report details for this session (excluding KL7 and KH6) are aggregated here.

Roger, VK4YB, reported “spartan” propagation to and from North America during this session with reports from VE7SL, W7IUV, and WH2XGP.  He provided reports for WH2XGP, WH2XXP, and WH2XCR.

Ward, K7PO / WH2XXP, received reports from 59 unique stations, including VK4YB and VK2XGJ.


WH2XXP session WSPR activity


Larry, W7IUV / WH2XGP, received reports from 45 unique stations, including two-way reports with VK4YB.  He received twelve unique stations.  The second receiver and antenna, designated as W7IUV,  provided reports to ten stations, including VK4YB.  Larry reports that overall band condition appear down at his station, adding that “…Path to/from VK4YB while weaker is still there…Surprising that reports from VK are as goos as east coast. I suspect more going on there than simple prop anomalies.”


WH2XGP session WSPR activity


Doug, K4LY/XE, reported that he received a note from William, PY2GN, indicating that some progress was made with his utility as they changed “lightning arrestor and connections” which may have been contributing to high noise level.  Doug listened remotely  and indicates that the noise level is much improved so perhaps William will have a chance to hear stations from North America.

Ernie, KC4SIT, has been assigned WI2XQU with a very fast turnaround after submitting his application and paying his application fee this weekend.  Now he just has to wait for NTIA to approve and return the application to OET.  Ernie’s submission timing is interesting and might result in a grant before year end if reviewers are trying to clear their “inbox” prior to the holiday vacations.  We have seen grants pushed through the system quickly during vacation and holiday seasons.

I did not operate CW during the evening, opting to start with WSPR due to workload here.  Noise was low and signal reports began early.  CW level reports were frequent in the Midwest and generally moved around North America overnight.  JT9 levels were persistent with many  stations.  Morning CW was typical although lightning crashes, presumably from gulf storms, were more noticeable than the same system presented yesterday morning.  My WSPR transmission report details can be viewed here and my WSPR reception report details can be viewed here.


WG2XIQ 24-hour WSPR activity


111 MF WSPR stations were observed on the WSPRnet activity page at 0006z by WG2XXM.  VE2VAX was listening during this session as were VE2DPF and K6PZB, the latter two reporting the old WSPR frequency of 503.9 kHz and  decoding no stations.  I suspect that these stations are using CAT with WSPR version 2.x, resulting in their receivers being set to the wrong frequency.  As there are plenty of loud transmitting stations near both of these stations I expect that they would be able to decode someone, evening using an HF antenna.  If anyone has contact with these stations, please direct them to this post.

Regional and continental WSPR breakdowns follow:


North American 24-hour WSPR activity



South American 24-hour WSPR activity



European 24-hour WSPR activity



African 24-hour WSPR activity



Central / Asiatic Russian 24-hour WSPR activity



Japanese 24-hour WSPR activity



Australian 24-hour WSPR activity


Eden, ZF1EJ, reported VE3CIQ, VE7CNF, WD2XSH/15, WD2XSH/17, WG2XIQ, WG2XKA, WG2XXM, WH2XCR, WH2XGP, and WH2XXP.  Report details for this session can be viewed here.


ZF1EJ 24-hour WSPR activity


Laurence, KL7L  / WE2XPQ, experienced a bit of improvement as the number of stations that he decoded are up from the previous session.


WE2XPQ 24-hour WSPR activity


Merv, K9FD/KH6 / WH2XCR, provided reports to WG2XKA in Vermont as the eastern-most stations in Merv’s receive list.  ZF1EJ continues to decode Merv on an otherwise difficult path.  Coverage in the West and Oceania continues to be very good while JA reports were fewer than previous sessions.  Merv indicated that the path to the Ukraine on 160-meters was decent with RST 559 reports for UR0MC.  Recent discussions with Merv suggest that his most common path to Europe is across Central and South America and might explain the quality of the openings to ZF1EJ over many recent sessions.  Merv’s report details for this session can be viewed here.


WH2XCR 24-hour WSPR activity


Jim, W5EST, presents, “E-W 630M SHORT PATH SAMPLES/3sec.: ECHO MODE IN WSJT-X”:

Ken SWL/K9 RX produced another winner dataset using WSJT-X Echo mode: 4.5 good hours from 0236z-0708z on Eric WG2XJM, at 475.770 20% TxPct WSPR2 as much as 30dB over noise.  See upper half-illustration.

Rejection of near-frequency stations succeeded, as indicated by spot check cross-reference to WSPR database for desirable failure to register Echo mode SNRs above noise in their slot times and percentages:  WG2XIQ 475.792 25% txpct, WG2XXM .711 50%, WD2XSH/15 .729 30%, WG2XKA QRT from .724.

The lower half- illustration shows WG2XJM signal strength variations were deterministic at the Echo mode 3 second sampling time scale over a typical hour 04z. Some signal strength variations (arbitrary units) featured several minor peaks, also interesting.   Overall, these first E-W XJM results look similar enough to those on the XIQ SW-NE path to SWL/K9 to suggest similar physical processes are probably responsible regardless of path heading.  Well-defined arcs, wiggles and lines represent the signal strength variations during diverse 110 second XJM WSPR2 time slots.

For background info on Echo mode and interpretations of other paths, see this blog Nov. 22, 23, 25, 28 and Dec. 13, e.g. http://njdtechnologies.net/112516/   TU and GL!”



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