Some actual data from my 'deaf' receiver.
WSPR on 2200M:
2020-01-02 03:12 K5DNL 0.137491 -21 -1 EM15lj 5 VA3VF
FN25 2163 52
2019-12-31 03:16 NO3M 0.137520 -24 0 EN91wr 1 VA3VF
FN25 584 43
2019-12-31 03:14 N1BUG 0.137438 -8 0 FN55mf 1 VA3VF
FN25 476 276
2019-12-31 03:14 K3MF 0.137406 -9 0 FM19sr 1 VA3VF
FN25 650 10
2019-12-31 03:08 N1BUG 0.137438 -9 0 FN55mf 1 VA3VF
FN25 476 276
2019-12-31 03:06 K3MF 0.137406 -9 0 FM19sr 1 VA3VF
FN25 650 10
2019-12-31 03:04 NO3M 0.137520 -18 0 EN91wr 1 VA3VF
FN25 584 43
2019-12-31 03:02 N1BUG 0.137438 -13 0 FN55mf 1 VA3VF
FN25 476 276
2019-12-31 03:02 N3FL 0.137550 -31 0 FM19ua 0.05 VA3VF
FN25 725 8
Formatting is making it harder to see, but N3FL 50 mW signal was
received from a distance of 725 km.
K5DNL's 5W signal from 2163 km.
WSPR on 600M:
2020-01-09 00:08 AE2EA 0.475760 -16 0 FN12fr 0.2 VA3VF
FN25 365 32
2020-01-09 00:00 WD8DAS 0.475719 -27 0 EN52hx 1 VA3VF
FN25 1174 71
2020-01-08 23:58 AE2EA 0.475760 -17 0 FN12fr 0.2 VA3VF
FN25 365 32
2020-01-08 23:54 W7XU 0.475670 -25 0 EN13lm 5 VA3VF
FN25 1753 75
2020-01-08 23:54 G0MRF 0.475784 -20 0 IO91fr 5 VA3VF
FN25 5216 293
G0MRF's 5W signal from 5216 km.
This data is freely available on wsprnet.org.
My Mini-Whip is literally a 10 cm wire soldered to the pre-amp board.
It's an active antenna. These Mini-Whips can be purchased on eBay for as
little as $15 without enclosure, a bit more with it, and that includes
shipping. :^)
Obviously for CW, power will have to be higher, but most Topbanders use
more than 5 Watts anyways.
The point again is, if the remote receiver is in the 'area', it does not
take much, and with the proliferation of remote receivers, one is always
bound to be in the 'area' of interest.
73 de Vince, VA3VF
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