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LF: More earth-electrode antenna tests on 472kHz

To: [email protected], "[email protected]" <[email protected]>, bernie <[email protected]>, Chris Osborn <[email protected]>
Subject: LF: More earth-electrode antenna tests on 472kHz
From: Roger Lapthorn <[email protected]>
Date: Mon, 21 Jan 2013 16:58:44 +0000
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Currently I am testing again with a 20m baseline earth-electrode antenna on 472kHz WSPR even though there is 8cm of snow on the lawn and ALL of the connecting wire is underneath the snow! There is absolutely nothing in the air at all. The attached photo shows the line of the connecting wire under the snow.

Already this afternoon I've had 6 unique reporters with best DX (so far) 126km:

 2013-01-21 16:46  G3XBM/1  0.475641   -30  0  JO02dg  0.005  M0BMU  IO91vr  69  210 
 2013-01-21 16:46  G3XBM/1  0.475641  -27  0  JO02dg  0.005   G8ALS  IO92fk  126  279 
 2013-01-21 16:04  G3XBM/1  0.475647  -12  0  JO02dg  0.005   G3XDV  IO91vt  61  214 
 2013-01-21 15:46  G3XBM/1  0.475647  -20  1  JO02dg  0.005   G3ZJO  IO92ng  79  270 
 2013-01-21 15:42  G3XBM/1  0.475693  +3  0  JO02dg  0.005   G0VQH  JO02fe  15  129 
 2013-01-21 15:42  G3XBM/1  0.475696  -10  0  JO02dg  0.005   G4KPX  JO02dj  14  0 

Any reports would be appreciated.

Reports from G3XDV for example are only around 8dB down on the Marconi. I am using G3XBM/1 on the WSPR database to distinguish the earth-electrode tests from my usual Marconi vertical (the feed to my 10m halo) where I am using G3XBM.

ERP will be recalculated later based on actual S/N measurements of ground wave.

73s
Roger G3XBM

Attachment: ee_snow.jpg
Description: JPEG image

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