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A few trans-Atlantic openings but trans-Pacific paths down considerably as ‘short band’ reported; Domestic paths OK but a few storms are present around North America

– Posted in: 630 Meter Daily Reports, 630 Meters

The details for April 15, 2016 can be viewed here.

The band sounded nice during the evening and overnight with only a few low static crashes observed here in North Texas.  This morning was also relatively quiet, although groups of strong lightning crashes were observed around 1045z during a CW session which suggested to me that propagation was shifting fairly rapidly.  By 1100z these conditions were no longer observed and the band was quiet again.

11-hour North American lightning summary

 

Propagation generally favored short-haul paths, optimal for domestic reports.  Roger, VK4YB, indicated early that his signal was not being reported further than Hawaii.  Even so a few longer-haul paths presented themselves.

Geomagnetic conditions were more active through this session although remaining at elevated-quiet levels after a reporting period of unsettled levels during the previous session.  The Bz was generally pointing to the South through the day and evening, reaching deeper levels than observed in recent days.  The Bz has since turned around to the North.  Solar wind velocities are in the low category, averaging near 350 km/s but have shown trends upward through the session.  DST values continue at negative levels even showing periods of significant decreases.  Both measurements presented below are showing hopeful improvements this morning, however.   We will know tomorrow if the improvement is only temporary.

 

 

WG2XPJ, located in Vermont, was the only station in North America to receive trans-Atlantic WSPR reports.  The reports were regionally localized and the openings were brief.  Report details can be viewed here.

WG2XPJ -> F1AFJ, F59706, F5OIH

Paul, N1BUG / WI2XTC, reported low QRN, increasing to moderate levels.  He heard sixteen WSPR stations including WD2XSH/20 for the first time.

Al, K2BLA / WI2XBV, reported low noise for this session, allowing him to hear nine WSPR stations and receive reports from 21 unique stations.  Al’s best DX for the session was WD2XSH/20 at a distance of 4000km.  This session was also the first time that Al has decoded Rudy.

Doug, K4LY / WH2XZO, decoded twelve WSPR stations and was decoded by 26 unique stations, which he indicates was a recent session low.  Doug also indicates that the path to VE7 was compromised and suggests that this is probably due to QRN and high latitude attenuation.

Ken, K5DNL / WG2XXM, reported QRN from storms in southwestern Oklahoma.  He decoded five WSPR stations and was decoded by 46 unique stations.

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

Dave, N4DB, reported very low QRN with short band openings.  He decoded twelve WSPR stations.

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

Roger, VK4YB, reported “Low noise all night, but propagation was short, just a few spots from VE7BDQ. Ward (WH2XXP) faded out quite early, which is most unusual. I decoded Larry (WH2XGP) only once.  VE6XH stats: 160m 3 spots, best -26, 630m no spots.”  Roger received reports from VE7BDQ and WH2XCR.  He provided reports for WH2XXP, WH2XGP and WH2XCR.  Roger submitted the following comments and statistic for his on-going experiment with Dan, VE6XH:

“Attached is a bar chart of results so far after 47 days of tests with VE6XH. The scale on the left is S/N in dB above threshold (taken as -32 dB) 2 days are missing because of a black-out and portable contest operating.

The blue bars are the 160m S/N. The red bars are the 630m S/N

Mostly the blue bars are higher as you would expect, but on a few days the 630m signal is the strongest. There is a degree of correlation but not a tight one.  The tests will continue.”

Experimental data for first 47 days of 160m/630m comparison experiment between VK4YB and VE6XH

 

Rudy, N6LF / WD2XSH/20, provided reports for seven WSPR stations and was reported by thirty unique stations including ZL2AFP.

Ward, K7PO / WH2XXP, received reports for 46 unique stations including VK4YB, VK2XGJ, and ZL2AFP.

Larry, W7IUV / WH2XGP, provided reports for seven WSPR station and was decoded by thirty unique stations including VK4YB.  As W7IUV, Larry provided reports for eight WSPR stations.  Larry also indicates that he was QRT for much of the night as he has something sparking at the antenna.

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 nine WSPR stations and he was decoded by thirteen unique stations.

ZF1EJ 24-hour WSPR activity

 

Laurence, KL7L / WE2XPQ, experienced a night of slim reports in Alaska.  He indicates that he was QRV from “dusk ’til dawn”.  Further inspection showed that an Internet problem meant reports were not being uploaded properly so after manual intervention, the session looked a little better for Laurence.  He shared two-way reports with WH2XCR and reported VK4YB once.  DX report details can be viewed here.

WE2XPQ 24-hour WSPR activity

 

Merv, K9FD/KH6 / WH2XCR, experienced reduced coverage during this session, which seemed to primarily support North and South long-haul paths.  The East coast of the US was missing, leaving ZF1EJ to be the eastern most station reported in KH6 for the session.  Reports from Japan were also missing for the session.  Merv shared two-way reports with WE2XPQ and VK4YB and was heard by VK2XGJ and ZL2AFP.  The West coast of North America was well represented.  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).