Scott,
first thing to find out is wether the interference comes from the
mains or from the power supply. Switched PSU's can be horror.
Can you use another power supply, if possible a good old fashioned linear one?
If the interference stays my next suggestion would be to run the TX
from the battery and only connect the mains protective earth wire
(here in Europe it's the green/yellow one) to the RX ground.
73, Rik ON7YD - OR7T
At 06:10 11/09/2008, you wrote:
Hi All
Been awhile since I've posted to the reflector. I'm pleased to
announce I have escaped the noisy clutches of the City and bought
myself a nice piece of land up the coast in a very quiet spot.
Presently I'm only using my passive RX loop which has a single turn
'sense' loop for coupling into the main multi turn loop... When the
RX is connected to an AC power power supply I get terrible AC
growlers; however, put the RX on a battery and bang not a peep of
nasty AC noise.
I presume this is due to some coupling between the AC mains and the
RX system and my isolation transformer doesn't seem to help so I
wonder if someone could set me straight on what is going on here so
I can solve the problem.
Thanks for any support!
73 Scott
VE7TIL
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