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

Current Operating Frequency and Mode

OFF AIR but QRV after dark tonigth

SCHEDULED ACTIVITY: CQ 474.5 kHz CW by 1015z through sunrise most days, WX permitting

Slow start yields strong trans-Atlantic activity, FR5ZX reports multiple Europeans, JA path remains open from KH6, VK3

– Posted in: 630 Meter Daily Reports, 630 Meters

In spite of the seemingly good propagation that had been observed in Europe as they progressed through darkness, much of North American experienced a bit of a slow start with S/N reports more depressed than previous sessions in the early evening.  Fortunately the session improved dramatically as the evening progressed.  The geomagnetic field had been at storming and active levels through the session but the Kp-index was beginning to settle down by sunrise in the central US.  Solar wind remains above 600 km/s and the Bz component had generally remained between + / – 5 nT though the session.

planetary-k-index 120715

The Kyoto DST remained in negative territory through the session with a gradual increase through the session before levelling off.

DST 120715

Kyoto DST for December 2015


WSPR activity was very high, with 86 MF stations reported during the evening in North America on the WSPRnet activity page.  There was at least one new (newer) reporting station through the session:  W7GGS.  I believe K7WLF is also new as I do not have him listed but the call sign does sound familiar.

The region and continental WSPR breakdowns follow:

NA 120715

North American 24-hour WSPR activity


EU 120715

European 24-hour WSPR activity


JA 120715

Japanese 24-hour WSPR activity


VK 120715

Australian 24-hour WSPR activity


On the trans-African path, Michel, FR5ZX, on Reunion Island along with several European stations, had a very strong night with numerous stations receiving reports.  This is interesting because it has been several weeks since the path has been open for large scale reports from Europe.

FR5ZX 120715

FR5ZX 24-hour WSPR activity


DK7FC FR5ZX 120715

DK7FC, as reported by FR5ZX


PA0A FR5ZX 120715

PA0A, as reported by FR5ZX


IW4DXW FR5ZX 120715

IW4DXW, as reported by FR5ZX


SV8CS FR5ZX 120715

SV8CS, as reported by FR5ZX


SV3DVO FR5ZX 120715

SV3DVO, as reported by FR5ZX


The trans-Atlantic path was equally as good.  Not only were numerous Europeans reported in North America but John, WA3ETD / WG2XKA, was reported by three stations in Europe – DH5RAE, DJ0ABR, and G8HUH.  John indicates that there was some kind of bubble that developed with both German stations, which were located 11 km apart, reporting his station during the same cycle.

WG2XKA G3XKR 120715

WG2XKA, as reported by G3XKR


WG2XKA DJ0ABR 120715

WG2XKA, as reported by DJ0ABR


WG2XKA DH5RAE 120715

WG2XKA, as reported by DH5RAE


DK7FC WE2XGR 120715

DK7FC, as reported by WE2XGR


G8HUH VE1YY 120715

G8HUH, as reported by VE1YY


G8HUH WD2XSH17 120715

G8HUH, as reported by WD2XSH/17


F1AFJ WD2XSH17 120715

F1AFJ, as reported by WD2XSH/17


DK7FC WD2XSH17 120715

DK7FC, as reported by WD2XSH/17


In the Caribbean, Eden, ZF1EJ, and Roger, ZF1RC, report almost identical stations through the session.

ZF1RC 120715

ZF1RC 24-hour WSPR activity


ZF1EJ 120715

ZF1EJ 24-hour WSPR activity


In Alaska, Laurence, KL7L / WE2XPQ, had a rough night as he was victim to significantly elevated K-indices and visible aurora:

WE2XPQ 120715

WE2XPQ 24-hour WSPR activity



In the Pacific, Merv, K9FD/KH6 / WH2XCR, had a nice session, with reports into the Midwestern US and Japan.

WH2XCR 120715

WH2XCR 24-hour WSPR activity


WH2XCR JH3XCU1 120715

WH2XCR, as reported by JH3XCU/1


WH2XCR JA1NQI2 120715

WH2XCR, as reported by JA1NQI-2


Phil, VK3ELV, continues to see reports from JA stations which leads me to believe that the path to KH6 may not be closed for the season.

VK3ELV 120715

VK3ELV 24-hour WSPR activity


VK3ELV JH3XCU1 120715

VK3ELV, as reported by JH3XCU/1



WH2XCR, as reported by TNUKJPM


Other anecdotes and statistics:

Larry, W7IUV / WH2XGP, has reported some type of transmit antenna failure and will be QRT until he can get a chance to troubleshoot and repair.

Ken, K5DNL / WG2XXM, indicated that he was reported by 50 unique stations and heard 8 stations.

Doug, K4LY / WH2XZO, indicates that reports out to 1000 km were very good through the session.

Joe, NU6O / WI2XBQ, of Eureka, CA received his 630-meter grant this morning.  Welcome aboard Joe!


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