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OFF AIR but returning after dark on Saturday night

Decent domestic propagation but QRN widely distributed around North America; Geomagnetic conditions reached unsettled levels after very quiet levels in previous session; Trans-Atlantic openings continue to be “hit or miss”; A few Trans-Pacific openings but less robust than normal for usual suspects

– Posted in: 630 Meter Daily Reports, 630 Meters

The details for April 14, 2016 can be viewed here.

Propagation was strong in Texas prior to sunset which continued into the evening but QRN was the limiting factor as storms were widespread around North America.  Amazingly the storm system in West Texas didn’t seem to be the main noise source here and  because those stormed looked so impressive in the evening I opted to shutdown at bedtime rather than engage in an “overnight scramble”.  Noise was also a player in Australia this morning as VK4YB commented that QRN was high in spite of the closest storms being located in Papua New Guinea.

11-hour North American lightning summary


Geomagnetic conditions reached unsettled levels after a very quiet previous session.  The Bz has pushed further to the South and solar wind velocities are elevated, averaging near 395 km/s with several periods above 400 km/s.  DST values have also departed from the centerline into more negative territory after several quieter reporting periods.




Trans-Atlantic openings were again limited but at least the path from New England was not completely cut off.  Report details can be viewed here.


Joe, DF2JP, found a better solution for feeding his LF vertical at MF and it involved removing the transformer, bypassing the loading coil and adding a shunt capacitance.   Joe experienced good results at a reported 200 mW ERP:

DF2JP matching and resonating method for LF antenna on MF


DF2JP session WSPR activity



Paul, N1BUG / WI2XTC, reported very low QRN in Maine at 0500z.  He began providing WSPR reports at 0500z, ultimately decoding seven stations, including WH2XGP.

Doug, K4LY / WH2XZO, reported high latitude attenuation with no VE7 stations and decreased S/N levels compared to the previous night. Doug decoded eleven WSPR stations and was decoded by 32 unique station in spite of lower  QRN in South Carolina.

Al, K2BLA / WI2XBV, reported moderate to low noise with propagation that seemed down in Florida.  He decoded eight WSPR stations and was decoded by 28 unique stations including WH2XCR.

Rick, W7RNB / WI2XJQ, provided reports for nine WSPR stations and he received reports from 23 unique stations.  Rick’s unique report details can be viewed here.

Dave, N4DB, reported that he decoded twelve WSPR stations including WH2XGP and WH2XXP,  both at distances exceeding 3000 km.

Mike, WA3TTS, reports that there were no openings to KH6 from his station in Pittsburgh, but the path was open to the Pacific Northwest.  He provided these statistics that are organized by distance:

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

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

Roger, VK4YB, reported that “QRN moderate for most of the session, then dropping to low. I unintentionally left the Tx disabled for part of the time. Propagation was only average.  VE6XH stats: 160m 4 spots, best -9, 630m 1 spot at -28.”   He received reports from JA3TVF, JH1INM, TNUKJPM, VE6XH, VE7BDQ, WI2XBQ, WE2XPQ and WH2XCR.  He provided reports for VE7BDQ, WH2XGP, WH2XXP, WH2XCR, and WE2XPQ.

John, VK2XGJ, reported very early reports of WH2XCR:

Early WH2XCR at VK2XGJ (courtesy VK2XGJ)


John, VE7BDQ, provided reports for nine WSPR stations and he was reported by 25 unique stations.  John shared two-way reports with VK4YB.

Ward, K7PO / WH2XXP, received reports for 57 unique stations including VK4YB, VK2XGJ, VK2COW/BEV, and ZL2AFP.

WH2XXP session WSPR activity (courtesy NI7J)


Larry, W7IUV / WH2XGP, provided reports for twelve WSPR stations and he was decoded by 46 unique stations including VK4YB, VK2XGJ, and ZL2AFP.  As W7IUV, Larry provided reports for nine WSPR stations.  He added that “QRN has been bad here, poorer than normal RX condx, still being heard reasonably well despite “summer” rules.  Also have been running less than normal TX duty cycle which affects spots.”

WH2XGP session WSPR activity (courtesy NI7J)


Joe, NU6O / WI2XBQ, reported, “Prop dead on W-E paths. Only heard by 19, 0 best CONUS DX, 1657 Km VE6SH. Heard only 8, including VK4YB.”

After an inquiry from John, VE7BDQ,  about the calibration of an “HF” Bird wattmeter slug at 472 kHz, Laurence, KL7L / WE2XPQ, created this video showing the differences between and HF slug and one designed to work down to 450 kHz:


OET and NTIA has dismissed the in-process application of W6IEE that was assigned WI2XUD.

Ron, WA4JNX, reports that “The Fox crystal used in the Jackson Harbor Press Converter is also an exact replacement for the Heathkit and works like a champ in the Palomar Converter, too (80m to 4Mhz output).”

Regional and continental WSPR breakdowns follow:

North American 24-hour WSPR activity


European 24-hour WSPR activity


Asiatic Russian 24-hour WSPR activity


Japanese 24-hour WSPR activity


Oceania 24-hour WSPR activity


Eden, ZF1EJ, provided reports for nine WSPR stations and he received reports from 23 unique stations.  He shared two-way reports with WH2XCR.

ZF1EJ 24-hour WSPR activity


Laurence, KL7L / WE2XPQ, experienced a session very similar to the previous in spite of elevated geomagnetic activity.  He provided reports for VK4YB and shared two-way reports with WH2XCR.  Report details can be viewed here.

WE2XPQ 24-hour WSPR activity


Merv, K9FD/KH6 / WH2XCR, reported yesterday that he was anticipating more storms overnight which might impact his ability to hear stations but generally speaking, his session looks relatively typical.  He provided two-way reports for VK4YB, ZF1EJ and WE2XPQ.  He received reports from 7L1RLL4, EJTSWL, JA1NQI/1, JA3TVF, JH3XCU, TNUKJPM, VK2COW/BEV, VK2XGJ, and ZL2AFP.  In North America, central US stations were missing due to bad weather but the three East coast stations were reported in KH6 including WG2XPJ, WH2XZO, and WI2XBV.  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).