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Current Operating Frequency and Mode

OFF AIR for storms - just one more night - should be QRV Saturday night!

A few trans-Atlantic openings develop as solar wind and geomagnetic activity begins to calm; Western and trans-Pacific opening favor North/South paths; High noise returns with new storm system in the central US; More JT9 activity in the Pacific Northwest and British Columbia; It’s a tough life on the beach for KL7L/XE; DJ2FP returns to MF after a flash-over event; Hans Summers offers big discount on U3S to commemorate R&O

– Posted in: 630 Meter Daily Reports, 630 Meters

The details for April 2, 2016 can be viewed here.

A noisy storm system arrived in the central US, which was expected, preventing my station and a few others from activity during this session.  Hopefully this system will move through quickly without causing more damage.  Be safe out there.

11-hour North American lightning summary


Geomagnetic conditions are somewhat contradictory but  the trend seems to be to improvement.  This session ranged from unsettled to elevated-quiet conditions.  The Bz is currently pointing to the South but solar wind velocities have continued to decrease, averaging near 490 km/s.  DST values continue at negative levels, but seem to have reached its minimum, at least for the moment, and appears to be heading up.  It could certainly decrease again but that has not occurred at this time.





Joe, DF2JP, reported that after a few disappointing days on LF he has transitioned his new antenna back to 630-meters.    In the process he found that he was arcing to his roof so he has added a Teflon spacer to help prevent flash-over.  Remember, a wise man once said there are two types of low band operators:  Those that have started fires with their antennas and those that will in the future.  Joe also indicates that he remarkably has too much top loading for 630-meters and is in the process of reworking his matching section.

DF2JP’s flash over solution


Roelof, PA0RDT, reported that Joe’s, VO1NA, QRSS10 on 477.7 kHz was impeded by poor propagation and high static levels.  He submitted this screen capture to the RSGB-LF reflector:



There was quite a bit of JT9 activity in the northwestern portions of North America with WH2XGP, VA7BBG, VA7MM (CF7MM), VE7BDQ and VE7SL.  Much of this  activity has centered around reports for VA7BBG who is located quite a bit further North compared to other British Columbian stations.  Neil, W0YSE/7 / WG2XSV, provided this transcript of the activity from his receiver in Vancouver, Washington.

Hans Summers reported that he would be offering the U3S beaconing platform at a discounted price to commemorate the Report and Order for 630-meters and 2200-meters.  Details and ordering information can be viewed here.

Trans-Atlantic openings were a bit more encouraging compared to yesterday, where no reports were indicated.  The caveat to this is that no North American stations were reported in Europe but EA5DOM and DK7FC made it across.  Report details can be viewed here.



Paul, N1BUG / WI2XTC, reported low QRN in Maine, providing WSPR decodes for nine stations including DK7FC and EA5DOM.

Al, K2BLA / WI2XBV, reported, “…Noise pretty high here, Very few stns copied.  Hrd by 26 only 1 over 2000km hrd only 5, I see serious WX over TX and OK which has some “regulars” QRT.”

Rick, W7RNB / WI2XJQ, indicates that most of his reports were on North and South paths.  He provided reports for ten WSPR stations and was reported by 27 unique stations.  Rick’s unique report details can be viewed here.

Ernie, KC4SIT / WI2XQU, reported that he experienced “High noise levels again during this last session. Clear skies and cool night. In listening mode I spotted 7 unique spots. When in transmit had no station spot me.”

WI2XQU session WSPR activity (courtesy KC4SIT)


WI2XQU unique session data (courtesy KC4SIT)


Neil, W0YSE/7 / WG2XSV, reported that he only received reports from western stations and Hawaii during this session, similar to Rick’s reports above:



Dave, N4DB, reported that conditions “… last night here in Virginia not too bad but only decoded 8. Some of the usual stns are shut down for bad WX. XGP DN07 and ZF1EJ both in but only -28.”

Mike, WA3TTS, reported from Pennsylvania that the “Best XGP decode overnight -23, tough night for the PNW path.”

Trans-Pacific report details, excluding KL7 and KH6, can be viewed here.

Hideo, JH3XCU, posted links to two tables showing NA/VK -> total JA DX  and NA/VK -> JA peak S/N for the session.

Roger, VK4YB, reported low to moderate QRN.   “WH2XXP had 2 spots of -13 and several at -14, -15. Other VKs and ZLs also receiving well tonight…WH2XCR, best -15. Some for WH2XGP, best -24. Only 5 spots of my signal in NA and all from Joe, WI2XBQ.  VE6XH stats: 160m 2 spots, best -17, 630m nil. Top band a clear winner tonight.”

Phil, VK3ELV, received reports late during this session from JH3XCU and TNUKJPM.  Those report details will be included in tomorrow’s report.

Ward, K7PO / WH2XXP, received reports from 72 unique stations including VK4YB, VK2XGJ, VK3ELV, VK2EIK, ZL2AFP.

WH2XXP session WSPR activity (courtesy NI7J)


Larry, W7IUV / WH2XGP, indicates that “Night time QRN levels here have been very high, almost summer condx. Local switch mode noise also bad.  All my winter antennas down, so listening with somewhat reduced RX capability as well…Lots of hi-lat absorption going on, path between PNW and east coast pretty bad again.”  Larry provided reports for ten WSPR stations including VK4YB.  He received reports from 51 unique stations including VK4YB, VK2XGJ, and ZL2AFP.  As W7IUV, Larry provided reports for ten WSPR stations.

WH2XGP session WSPR activity (courtesy NI7J)


Joe, NU6O / WI2XBQ, provided reports for eight WSPR stations including VK4YB and he received reports from 27 unique stations.

Fritz Raab, W1FR, coordinator for the ARRL’s experimental group, recounted in an email this abridged history of “The Beginning of the Quest for 600-meters”:

“Given the news from the FCC, I thought it might be interesting to recall how it got started.  In February 2004, the “Lowdown” in its list of signal reports something about the “600 Meter Research Group” and this was associated with Paul Signorelli W0RM.  I contacted him and this led to discussions with a number of the members including W7EKB, W5THT, N1EA, and W5JgV.  I found that their attempt to operate in the 435-490-kHz band had quickly been killed by the Coast Guard, who had hopes of implementing a series of high-accuracy DGPS  stations in that band.  They also said there was no support from ARRL.

A colleague was designing components for the HA-DGPS system, so he put me in touch with the head of Coast Guard R&D.  He said they had no interest in 495 – 510 kHz. Since 495 – 505 kHz was at the time still the International
Distress Frequency, my attention focused on 505 – 510 kHz.
ARRL CEO Dave Sumner K1ZZ and I sat across each other  one summer at Collins Radio.  I contacted Dave and we quickly had a green light from ARRL.  I assembled a team of operators. Paul Rinaldo W4RI, Walt Ireland WB7CSL, and Chris Imlay W3KD  went to work on the application for the experimental license, which was filed in 2005.  After a “shoot out” at the FCC, the license was issued on September 13, 2006.
I fired-up my station late that afternoon.  By the weekend, WS4S and W4DEX were also on the air, and others followed shortly after.”

Regional and continental WSPR breakdowns follow:

North American 24-hour WSPR activity


European 24-hour WSPR activity


Japanese 24-hour WSPR activity


Oceania 24-hour WSPR activity


Eden, ZF1EJ, provided reports for six WSPR stations including WH2XCR and he received reports from 24 unique stations.

ZF1EJ 24-hour session WSPR activity


Laurence, KL7L / WE2XPQ, was able to improve his receive antenna system while on assignment in Mexico:

KL7L/XE probe near the beach in Mexico

And he experienced these results overnight in spite of very noisy conditions here in Texas:

KL7L/XE 24-hour WSPR activity


Back in Alaska, WE2XPQ continues to operate remotely, providing reports for VK4YB and shared two-way reports with WH2XCR.  Those report details can be viewed here.

WE2XPQ 24-hour WSPR activity


Merv, K9FD/KH6 / WH2XCR, experienced generally North and South openings like many other stations reported in the West.  He provided reports for VK5FQ and shared two-way reports with VK3ELV and VK4YB.  Merv received reports from VK2XGJ, ZL2AFJ ZL2BCG and ZF1EJ.  I don’t recall the last time that I observed no eastern US reports for Merv.  DX report details can be viewed here.

WH2XCR 24-hour WSPR activity


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