In message <[email protected]>,
Clifford Buttschardt <[email protected]> writes
Interesting observation on real time listening on LF. When I was at sea
as a radio officer I arranged two receivers one vertical and the other
horizontal using the longwire 500 kHz antenna tuned to the same frequency
within one hertz. Then by using two headphones, each arranged so that
opposite ears listened to opposite polarizations, results were simply
amazing! With some very weak LF signals and especially with some ten
meter satellite signals, I would estimate the readability increased by at
least fifty percent. The ease in which signals buried in QRN could be
read was something I've wanted to investigate ever since that experiment.
I did something vaguely similar with 6m SSB, but I switched by hand a
vertical and a horizontal antenna into the receiver. Fades were
virtually eliminated. Showing I think that there was a lot of
polarisation rotation on the incoming signals, but at LF?
Mike
--
M.J.Powell
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