12 Feb 2015

472kHz WSPR

This morning G0LRD (25km) has been copied several times. During the overnight period my PC turned off to install updates so no 472kHz spots between about 0300z and breakfast time. Currently I am active with 5mW ERP (20% TX, 80% RX) ) on 472kHz and 500mW on 28MHz (10m) WSPR (100% TX).

UPDATE 1205z: G0LRD has been copied 16 times here on 472kHz this morning using my earth-electrode "antenna".  Signals have varied by up to 9dB in S/N, which is probably my local noise floor changing rather than propagation?
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2 comments:

  1. David (G0LRD)Thu Feb 12, 08:56:00 pm GMT

    Hi Roger,
    Something may have changed at your end because you were copying me consistently at -14/-15/-16 dB then suddenly your spots dropped at 10:06 to -23/-24/-25 dB. G7JVN's spots of me didn't change in level.
    Regards
    David G0LRD

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  2. Roger G3XBMThu Feb 12, 09:47:00 pm GMT

    I suspect it was local interference at my end David.

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