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Current Operating Frequency and Mode

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

Kp reached 6 overnight but domestic openings were reasonably good; Trans-Atlantic openings cut off again; Trans-Pacific openings down but QRN up in Oceania

– Posted in: 630 Meter Daily Reports, 630 Meters

The details for April 20, 2016, can be viewed here.

Storms continue to be widely spread around North and Central America during this session but like the previous session I didn’t observe a significant impact for domestic reports which may say more about propagation than anything.  Longer haul openings were diminished from the previous session including trans-Pacific paths to Oceania where VK4YB reports very high QRN from storms that are not necessarily close to his QTH.  A very common phrase from participating stations during this session is that “signals seem down.”

11-hour North American lightning summary


Geomagnetic conditions are at storm levels again as the Kp peaked at 6.  The Bz pushed strongly to the South during the late afternoon and evening, coinciding with solar wind velocities that exceeded 600 km/s.  The Bz is less southerly this morning and solar wind velocities are quite variable but consistently near 600 km/s.  DST values experienced deep decreases approaching 100 units.




There were no trans-Atlantic WSPR or CW reports during this session.

Joe, DF2JP, reported normal medium wave conditions around Europe.  He decoded twelve WSPR stations and he was decoded by 62 unique stations including TA4/G8SCU, who was his most distant report for the session.

Al, K2BLA / WI2XBV, reported that he was QRV only this morning when he decoded eight WSPR stations with two at a distance at or close to 4000 km.  He was decoded by seventeen unique stations including VE7SL at a distance of 4175 km.

Rick, W7RNB / WI2XJQ, provided reports for seven WSPR stations and he received reports from 21 unique stations.  Rick’s unique report details can be viewed here.

Dave, N4DB, reported that at 1000z, he had decoded ten WSPR stations.

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

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

Roger, VK4YB, reported that he had “Only 2 decodes all evening, and they were both of WH2XXP, just on sunset. The QRN is terrific and yet the radar shows the nearest storms are nearly 2000 km distant.  I can only judge propagation by reports of my transmissions. The paths are open to NA, Hawaii, Alaska and Japan but only moderately. ”  Roger received reports from JA3TVF, VE7SL, W7IUV, WH2XGP, WH2XCR, and WE2XPQ.

Ward, K7PO / WH2XXP, received reports from 51 unique stations including VK4YB and VK2XGJ.

WH2XXP 24-hour WSPR activity (courtesy NI7J)


Larry, W7IUV / WH2XGP, provided reports for seven WSPR stations including VK4YB and he was reported by 39 unique stations.  As W7IUV, Larry provided reports for seven WSPR stations including VK4YB.

WH2XGP 24-hour WSPR activity (courtesy NI7J)


I decided to operate WSPR through the session starting in the early afternoon.  Ground wave was solid at  CW-levels out to 200-miles radius prior to darkness.  The longer days have really put a cramp on skywave conditions which really didn’t come into their own until well after dark here.  Propagation around North America seemed fine with many JT9 report levels on both transmit and receive. QRN levels were never really a major player here and my receive numbers, while down from recent values, were about where one might expect them for mid-April.  Those report details can be viewed here.  My transmission numbers were normal and those report details can be viewed here.

WG2XIQ 24-hour WSPR activity


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 six WSPR stations and he was reported by thirteen unique stations including WH2XCR.

ZF1EJ 24-hour WSPR activity


Laurence, KL7L / WE2XPQ, experienced a similar session to the previous, at least as far as DX paths were concerned.  He provided reports for VK4YB, in fact, many more reports than the previous session and he shared two-way reports with WH2XCR.  Overall numbers were down and likely the result of Laurence’s location with respect to the active geomagnetic conditions.  DX report details can be viewed here.

WE2XPQ 24-hour WSPR activity


Merv, K9FD/KH6 / WH2XCR, also experienced a generally down session with no JA or VK reports of his signal, which is quite rare.  He provided reports for VK4YB and ZF1EJ and shared two-way reports with WE2XPQ.  The path to the mainland of North America was again very limited but Merv was relatively strong here and didn’t seem to be having problems hearing me this morning.  Merv’s 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).