NJDTechnologies

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

A slow start yields good session in North America; Midwinter 630-meter activity weekend almost here; WE2XPQ –> JA1NQI-2, VE7BDQ on WSPR15; WH2XCR –> VK2XGJ, JA1NQI-2; VE1HF trans-Atlantic reports; High level of band activity

– Posted in: 630 Meter Daily Reports, 630 Meters

The band was off to a slow start after a daytime session that yielded only a few reports on sky wave paths.  Early evening in Texas at WG2XIQ suggested that the band was very short, with very strong signals from WD2XSH/15 in Little Rock, Arkansas.  These levels were high even with the recent repairs at Don’s station that has resulted in a better signals recently. Noise levels were elevated during the early evening as the storm system that was effecting the eastern third of the US finally pushed out into the Atlantic.  The geomagnetic field was quiet and the Bz  was strongly pointing north.  Solar wind was elevated, averaging 450 km/s.

planetary-k-index 020416

 

Kyoto DST 020416

 

Australia DST 020416

 

Mike, WA3TTS, reported that VE3OT was quite audible on CW during the afternoon via the ground wave path.  Mitch relocated from 475 kHz to 477 kHz in preparation for this weekend’s Midwinter 630-meter Activity Weekend.

Spiros, SV8CS, posted a nice screen capture of Ottar, LA1TN, who was operating QRSS3 on 473.80 kHz.  The path was 2948 km and Spiros is seeking a normal CW QSO with Ottar.

LA1TN SV8CS QRSS3 020416

LA1TN, QRSS3, as reported by SV8CS

 

Doug, K4LY / WH2XZO, offered the following comments and questions for the session:

WH2XZO email 020416

 

Larry, W7IUV / WH2XGP, noted that his station reported nine WSPR2 stations and was decoded by 42 unique stations, with a good path to the east coast and descent S/N levels from  a number of stations that don’t often report him.  Larry added that his snow turned to freezing fog this morning and has tripped his SWR protection.  He will be QRT until the situation improves.

Neil, W0YSE/7 / WG2XSV, reported a good session with 17 stations decoding his WSPR2 signal.  Details are shown below:

WG2XSV 020416

Mike, WA3TTS, provided some nice WSPR decode statistics from the overnight in North America and offered the following details:

WA3TTS email 020416

WSPR activity was very high, with 87 MF WSPR stations observed at 0215z on the WSPRnet activity page.  WB4JLD and W8ARE were observed as “new” receive stations during this session.  AE0MT is a recent addition to the receive corp and was providing reports again last night.

Regional and continental WSPR breakdowns follow:

NA 020416

North American 24-hour WSPR activity

 

EU 020416

European 24-hour WSPR activity

 

JA 020416

Japanese 24-hour WSPR activity

 

VK 020416

Australian 24-hour WSPR activity

 

HAMWSPR NA 020416

HAMWSPR.com North American 24-hour WSPR activity

 

There were no reports on the trans-African path during this session.

The trans-Atlantic path was limited to WSPR reports to and from VE1HF, who decoded EA5DOM and was decoded by G3XKR.

VE1HF G3XKR 020416

VE1HF, as reported by G3XKR

 

EA5DOM VE1HF 020416

EA5DOM, as reported by VE1HF

 

Eden, ZF1EJ, had a nice session that included reports for WH2XCR in addition to seven other stations on the mainland US.

ZF1EJ 020416

ZF1EJ 24-hour WSPR activity

 

Laurence, KL7L / WE2XPQ, operated WSPR15 through the session once again, with reports from John, VE7BDQ and JA1NQI-2.  Laurence also commented that WD2XSH/20 was strong overnight and VE stations were at positive S/N levels.   He also made contact via email with a JA station in hopes of finding some additional WSPR-15 activity there on 630-meters.  KL7L was designated for dual-mode receive for the session.

WE2XPQ WSPR15 020416

WE2XPQ 24-hour WSPR activity

 

WE2XPQ WSPR15 VE7BDQ 020416

WE2XPQ, as reported by VE7BDQ

 

WE2XPQ JA1NQI2 020416

WE2XPQ, as reported by JA1NQI-2

 

KL7L 020416

KL7L 24-hour WSPR activity

 

Merv, K9FD/KH6 / WH2XCR, reports that he got a late start after chasing VP8SGI during the evening.  Merv received reports once again from JA1NQI-2, VK2XGJ and KL7L as well as previously reported ZF1EJ and many others on the mainland US.  Laurence, KL7L / WE2XPQ, was visible on WSPR-15.  Merv notes the coincidence of the return of these DX reports with a weather system that is about the push through, right in time for the special event this weekend.

WH2XCR 020416

WH2XCR 24-hour WSPR activity

 

WH2XC JA1NQI2 020416

WH2XCR, as reported by JA1NQI-2

 

WH2XCR VK2XGJ 020416

WH2XCR, as reported by VK2XGJ

 

WH2XCR KL7L 020416

WH2XCR, as reported by KL7L

 

 

Additional comments, anecdotes, statistics and information:

Jim, W5EST, offered the following profile for Jay, W1VD / WD2XNS / WE2XGR/2:

“Jay W1VD, WD2XNS, WE2XGR/2 spices his operations with numerous bands and modes from Burlington, Connecticut.  http://www.w1vd.com/ 630m WSPR reception is the focus of this post.  Jay receives WSPR stations all over North America and transatlantic DX as well.  Among his DX receptions this season: DK7FC and EA5DOM Feb. 3, F5WK Dec. 4,  DK7FC and PA0A Oct. 31, and G8HUH Nov. 1.  W1VD decoded WH2XCR at 7990km on Nov. 8, and I may have missed noticing many other successes at W1VD this season.

Today I’m omitting the peak SNR profile table.  Instead, a scatterplot reveals WH2XZO (SC) SNRs decoded in same individual time slots among 115 time slots the night of Feb. 2-3 by W1VD (CT) and WG2XKA (VT).

The scatterplot points are a mess.  But: The mess is the message!  Points scattered all over the plot tell us that W1VD and WG2XKA SNRs bear almost no relationship to each other–even though W1VD and XKA are 700 miles from XZO and less than 100 miles from each other.  Welcome to 630 meters!

That’s the bad news. The good news is hidden resources here if we could only tap them. How would you tap them?  Send us your ideas for discussion another day soon.

Just notice for now that the scatterplot has two green triangles that show where the SNRs of W1VD and XKA were most different.  If the points in one triangle clustered around one time of night and/or the points in the other triangle another time of night, we’d probably call that spotlighting.

Otherwise scattered throughout a night, the triangle points simply point out the instances of most-divergent SNRs.  The points near the middle diagonal between the triangles show where the SNRs were most similar between W1VD receptions and those of WG2XKA.  As you can see a scatterplot is one helpful way to visualize what’s happening on 630m, and Jay at W1VD importantly contributes to our knowledge of 630m.”

W5EST plot 020416

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