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Hi Roger,
I was under the impression that your earlier tests
had shown that reception from your earth electrodes at any distance was only
possible by also using earth electrodes. This suggests that those of us using an
aerial stand little or no chance, correct?
From what I recall of tests done forty or so years
ago with friends, using wideband audio into the ground, any form of 'in air'
reception attempt was seriously bad. The reception of a signal injected into the
earth as the conduction medium also required the receive system to be in the
same medium i.e. the earth.
Do prove me wrong...and good luck with the
tests.
Vy 73,
Chris, G4AYT, Whitstable, Kent.
----- Original Message -----
Sent: Sunday, December 12, 2010 10:51
PM
Subject: LF: G3XBM - very long carrier
VLF transmission test Dec 15th
This Wednesday, Dec 15th, I will run tests on 8.7608kHz
with very long continuous TX periods of several hours interspersed with
gaps of 0.5 to 1 hour. Transmissions will start at 0900GMT and finish at
2300GMT. I will reveal the TX pattern after the test so the test is done
"blind".
I'd be most grateful if suitably equipped stations could look
for any possible signs of the signal, even though I shall only be using the
20m spaced earth electrodes and 5W as used for my local earthmode tests. Those
able to screw the bandwidths right down may just be able to detect something,
although I think it is unlikely at any great distance.
15.12.10
0900-2300z
8.7608kHz
Carrier "on" periods of 30mins or more
Good luck
to anyone having a go.
73s
Roger G3XBM
--
g3xbm-qrp.blogspot.com/
www.g3xbm.co.uk
www.youtube.com/user/g3xbm
G3XBM GQRP 1678 ISWL
G11088
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