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Day-time sea-path experiment
Jose, many thanks indeed for your interesting
feedback, despite site noise & ant damage.
Congrats Mike, but no big surprise with ~100%
sea-path.
Mine is ~95% [50k land] & Fin has the
extra 350k EI land-mass attenuation.
The planned 3-signal freq spacing worked well,
thanks Mike & Fin.
The 10dB difference relates quite well to the
8dB figure in your previous report.
Thanks for the qth info.
Look forward to the next day-time
test.
73, Rog.
----- Original Message -----
Sent: Wednesday, August 01, 2007 1:17 AM
Subject: LF: 500 Daytime UK-EA test
Hello all,
As I announced previously, I moved this afternoon
to a location, in the countryside, some 10 km away, where a local ham,
EA1LQ, has a station. When we arrived there, at 16:00UTC, we sadly found
all the band invaded by a terrible noise, with very strong spectral lines every
100Hz, that prevented any signal reception. But suddenly, at 17:30, this noise
dissapeared, and signals from Mike,GW4HXO, were copied by
ear, on 501.270 kHz, sending continuosly VVV de GW4HXO,
until 19:00UTC, when I switch the RX off. A trace was seen,
with Argo, on 501.5 kHz, some 10 dB weaker, but not copied by ear,
perhaps the signals from Rog, GW3UEP? Nothing received from Finbar,
GI4DPE.
Location data: IN53RH, 43º18´25.83"N,
8º34´06.82"W
Estimated path length with GW4HXO :
984km, I think only 3km ground path.
RX: IC7000, tuned to 10.500MHz, receiving signal
from a home made converter with a 510kHz LPF and a 10Mhz TCXO
LO.
The vertical antenna was damaged, so we had to use
an almost horizontal (20-30º) HF "Delta" antenna!
73 de José, EA1PX, IN53ti
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