NJDTechnologies

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

Current Operating Frequency and Mode

QRT but I'll be back tonight, WX permitting

SCHEDULED ACTIVITY: CQ 474.5 kHz CW by 1000z through sunrise most days, WX permitting

Trans-Atlantic path readjusts to include south central US, Path from Europe to FR5ZX opens again, Very strong domestic propagation

– Posted in: 630 Meter Daily Reports, 630 Meters

630-meters was very good last night, at least in the south central US.  While the northeast has had an almost exclusive hold on the trans-Atlantic path, the propagation spread southwest into Oklahoma and Texas, with reports from EA2HB for WG2XXM and me,  WG2XIQ.  Mike, WA3TTS, wrote this morning that conditions were  not as good as they had been for him in prior sessions from western Pennsylvania but he still managed to snag F5WK for two reports.  Similarly, Keith, KF5JIA, in Oklahoma managed 11-reports of WH2XCR using an unmatched 80-meter dipole.  In Vermont, John, WA3ETD / WG2XKA, indicated that 39 unique stations reported his signal but the path to the Pacific Northwest was open, but not reciprocal, with his signal receiving decodes from some of those guys.  Larry, W7IUV / WH2XGP, indicated that freezing fog shut his station down early so perhaps the high latitude path  trans-continental path was, in fact, open but with missing signals it was not realized.

The geomagnetic field was more active through this session so its possible that the “good conditions” being observed are an artifact of the onset of an unsettled geomagnetic field.  The Kp peaked at 4 through the session and the Bz component remained mostly southerly.

planetary-k-index 120515

The Kyoto DST was generally stable and centered on zero nT throughout the session.

Kyoto DST 120515

Kyoto DST for December 2015

 

WSPR activity dominated the session and operator numbers were high in spite of the concurrent activity from the ARRL 160-meter contest.  A single new reporting station was observed, KC1AWS.

The 24-hour WSPR breakdown follows:

NA 120515

North American 24-hour WSPR activity.  Note: a VK station fouled the map with a poorly executed band change so the map does not completely represent the 630-meter session.

 

EU 120515

European 24-hour WSPR activity

 

VK 120515

Australian 24-hour WSPR activity

 

JA 120515

Japanese 24-hour WSPR activity

 

 

In the Indian ocean the path to Reunion Island and Michel, FR5ZX, opened once again for Europe, with reports for Stefan, DK7FC.

FR5ZX 120515

FR5ZX 24-hour WSPR activity

 

DK7FC FR5ZX 120515

DK7FC, as reported by FR5ZX

 

The trans-Atlantic path was different but very good, with many of the usual reporting stations in the northeast finding success plus the addition of WG2XXM and WG2XIQ making it across to EA2HB.

EA2IB 120515

EA2HB 24-hour WSPR activity

 

WG2XXM EA2HB 120515

WG2XXM, as reported by EA2HB

 

WG2XIQ EA2HB 120515

WG2XIQ, as reported by EA2HB

 

G8HUH WD2XSH17 120515

G8HUH, as reported by WD2XSH/17

 

F5WK WD2XSH17 120515

F5WK, as reported by WD2XSH/17

 

DK7FC WD2XSH17 120515

DK7FC, as reported by WD2XSH/17

 

F5WK VE2PEP 120515

F5WK, as reported by VE2PEP

 

F5WK WA3TTS2 120515

F5WK, as reported by WA3TTS/2

In the Caribbean, both Roger, ZF1RC, and Eden, ZF1EJ, had solid sessions, each hearing all of the same statsons.  It seems the identical receive antennas are working out well.

ZF1EJ 120515

ZF1EJ 24-hour WSPR activity

 

ZF1RC 120515

ZF1RC 24-hour WSPR activity

In Alaska, Laurence, KL7L / WE2XPQ, was reported by stations along the west coast and Pacific.  Report numbers were down through this session compared to the previous, but being the eternal optimist when it comes to this stuff alone (!!!), I would say that being heard from near the auroral oval isn’t too bad, all things considered.  Then again, I live a long way from the auroral zone so what do I know?

WE2XPQ 120515

WE2XPQ 24-hour WSPR activity

 

Merv, K9FD/KH6 / WH2XCR, had a good session as well with reports spanning the mainland US to Japan.  The path to VK is once again closed, at least for the moment.

WH2XCR 120515

WH2XCR 24-hour WSPR activity

 

WH2XCR JH3XCU1 120515

WH2XCR, as reported by JH3XCU/1

 

As I mentioned earlier, Keith, KF5JIA, in Oklahoma had 11-reports of WH2XCR  while receiving with an 80-meter dipole.  Thanks to Ken, K5DNL / WG2XXM, for bringing this information.

WH2XCR KF5JIA 120515

WH2XCR, as reported by KF5JIA

Other anecdotes and statistics follow:

Ken, K5DNL / WG2XXM, reported 42 unique spotters of his signal while hearing six.

With ARRL 160-meter contest in full swing, I opted out of calling CW this morning before sunrise but hope to get back on schedule on Monday.  There might be an impromptu CW sked this evening.

While reviewing the session data for my station, it was interesting to see the very high signal reports in the mid-Atlantic and east central regions of the US as the session progressed.  It was not uncommon to see +10 db S/N for a number of domestic stations and it makes one wonder if this was left over from the path that led to reports from EA2HB.  The trans-Atlantic path has been closed for a very long time for my station so it is interesting to see very strong reports from stations in that general direction and it certainly makes one wonder what is different.  Are we simply seeing the effects of an onset of geomagnetic activity, where the planet aligned just right, or was it something even more esoteric?    These little surprises make it all a lot of fun.

Additions, corrections, clarifications, etc?  Send me a message on the Contact page!