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OFF AIR

472 GRABBER OFF LINE UNTIL MIDWEEK

Noisy evening in the southern US but propagation may be slightly above average (??)

– Posted in: 630 Meter Daily Reports, 630 Meters

…Its tough to know for sure just how good the band may have been overnight.  With the elevated noise level from a storm system that was headed East and Southeast overnight, WSPR S/N reports were down although good early evening reports of me calling CQ on CW by KA9CFD suggested that the band may be serviceable nevertheless.

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North American 11-hour lightning summary

 

There are a number of indicators that I use to determine whether propagation is good at my station and their application varies from session to session.  In this session, two-way WSPR reports with WE2XPQ suggest that the path recently impacted by solar wind was showing some recovery. Laurence reported my signal at or near narrow band CW levels on a few cycles suggesting my signal was having little trouble moving North against what recently might have been elevated electron density on a generally unlikely overland path.  While his signal was only decoded here once and near the WSPR detection limit, its easy for me to explain due to the local high noise levels.  In fact, with my signal were pushing North to Alaska as easy as it was, Laurence’s signal may have been heard here many more times than he heard me under quieter conditions.

Geomagnetic conditions continue at elevated-quiet to unsettled levels although the most recent reporting period has shown the first real sense of decrease in Kp in several days.  The next few reporting periods may better illustrate what is ahead.  The Bz is currently pointing slightly but persistently to the South and lacks the variability observed in recent sessions.  Solar wind velocities are down considerably, averaging 575 km/s at this time.  While continuing in negative territory, DST values are more stable than in previous sessions although the Australian DST suggests more “irritability” during this session than the Kyoto DST.

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There were no trans-Atlantic reports during this session.  Why?

Neil, W0YSE/7 / WG2XSV, received a report from a new stations and provided the following comments and statistics:

“…I woke up around 4:15 am to discover that I forgot to put my wspr back on TX before bedtime. So I sent out a wspr blast and discovered a new listener, KD0S in central South Dakota. He popped up immediately.

Here are the 11 that I heard:  VA7MM, VE7BDQ, VE7CNF, WE2XPQ, WG2XIQ, WG2XXM, WH2XCR, WH2XGP, WH2XXP, WI2XBQ, WI2XJQ”

Doug, K4LY / WH2XZO, reported a noisy night in South Carolina, decoding nine WSPR stations and receiving reports from 36 unique stations.  Doug shared two-way reports with WH2XCR, which he indicates was the highlight but he had no reports to or from VE7.

Rick, W7RNB / WI2XJQ, reports a very good session with a waterfall full of signals and decodes of eleven WSPR stations (in addition to a number of phantoms) as well as reports from 25 unique stations.  Unique report details for Rick and these stations can be viewed here.

Trans-Pacific report details for this session (excluding KL7 and KH6) are aggregated here.

Roger, VK4YB, reported, “Good session with lower noise as storms were more distant. TP is holding up very well. All undecoded traces were from known stations, so no mystery stations tonight. I believe JR1IZM was a new reporter for me.”  Roger received reports from 7L1RLL4, JA1PKG, JA3TVF, JE1JDL, JR1IZM, WW6D and W7IUV.  He provided reports for WH2XXP, WH2XGP, WG2XXM, VE7BDQ (two-way) and WI2XBQ (two-way).

Ward, K7PO / WH2XXP,  received reports from 67 unique stations, including VK4YB, VK2XGJ, and ZL2BCG.

Larry, W7IUV / WH2XGP, received reports from 46 unique stations, including VK4YB and ZL2BCG. He provided reports for 14 WSPR stations.  As W7IUV and listening with the western receive antenna, Larry decoded 12 WSPR stations including VK4YB.

Ken, K5DNL / WG2XXM, reported that he was decoded by 52 unique stations, including VK4YB and WE2XPQ.  Ken received 88 WSPR decodes from WH2XCR, best report +1 dB S/N.

John, VE7BDQ, shared two-way reports with VK4YB.

Joe, NU6O / WI2XBQ, shared two-way reports with VK4YB.  He reports that the session was “An above average night, with good W-E propagation, and 2 way TP. A couple of new stations, WI2XBV and KD0S…There is still good prop to the N. Was listening to CBC in Vancouver 690khz on the ride in to work. Local quality reception.”

I thought my WSPR reports improved a bit as the session progressed and by morning my numbers suggested that QRN may have been impacted a number of reporting stations.  Unlike the previous session, however, S/N levels to the Pacific Northwest were down both in quantity and report quality in spite of the lightning map reporting generally “clear skies” up there.  Perhaps the Christmas gadget QRM invasion is underway.  By the way, I have not yet observed elevated QRM at 472 after Christmas morning that is often observed.  I have not checked the other bands, however, so it may be a lot worse and I just don’t know it yet.  My receive numbers were down a bit compared to other session but I am going to blame the noisy conditions.  As previously reported, Jay, KA9CFD, provided me with RST 589 reports at 2318z (S6 noise level at the time) followed by fade two-minutes before local sunset followed by a return to previous levels.  This morning, Al, K2LBA / WI2XBV, reported my morning CQ’s at RST 589 at 1148z.  Signals seem as strong as ever and its nice to not only be QRV again on CW but also to have the failed power supply from late last week replaced and in good working order.  My WSPR transmission report details can be viewed here and my WSPR reception report details can be viewed here.

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WG2XIQ 24-hour WSPR activity

 

Activity numbers were down a bit, in the upper 90’s for much of the early evening.  The peak that I observed on the WSPRnet activity page at 0235z was 102 MF WSPR stations.  KC5LT and KD0S were observed as new or recently new and returning stations during this session.  Welcome aboard!

Regional and continental WSPR breakdowns follow:

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North American 24-hour WSPR activity

 

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European 24-hour WSPR activity

 

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Central / Asiatic Russian 24-hour WSPR activity

 

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Japanese 24-hour WSPR activity

 

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Australian and New Zealand 24-hour WSPR activity

 

Eden, ZF1EJ, provided reports for VA7MM, WD2XSH/15, WG2XIQ, WG2XXM, WH2XCR, WH2XGP, WH2XNG, WH2XXP, WH2XZO, and WI2XBV.  Those report details can be viewed here.  Eden also operated ZF1EJ/1, using his new transmit antenna for listening, and provide reports for VA7MM, WD2XSH/15, WG2XIQ, WG2XXM, WH2XCR, WH2XGP, WH2XNG, WH2XXP, WH2XZO, and WI2XBV.  Report details for those stations can be viewed here.

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ZF1EJ 24-hour WSPR activity

 

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ZF1EJ/1 24-hour WSPR activity

 

Laurence, KL7L / WE2XPQ, managed reports into the South central US  and generally good openings along the West coast.  He shared two-way reports with WH2XCR and decoded VK4YB.  Laurence’s DX report details for this session can be viewed here.

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WE2XPQ 24-hour WSPR activity

 

Merv, K9FD/KH6 / WH2XCR, experienced good coverage into the East coast of North America although the path to Japan was completely missing.  Merv managed reception reports from VK2XGJ and ZL2BCG and shared two-way reports with VK4YB.  Good coverage across North America was evident.  He also received a note from Roger, VE7VV, at the University of Victoria who indicates that Merv was almost as loud as the other VE7’s!   Merv’s DX report details for this session can be viewed here.

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WH2XCR 24-hour WSPR activity

 


Additions, corrections, clarifications, etc? Send me a message on the Contact page or directly to KB5NJD gmail dot (com).