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Alex,
Personally, I'd leave it alone, unless you were really limited
with your receiving antenna. I use a loop for LF receiving, and a 30 dB preamp.
I leave the R-75 internal preamps off, as they pick up some "birdies" within the
receiver. The resulting signal levels appear to be more than sufficient for
serious LF work. This was the setup that I used last week to copy G3AQC on 73
kHz.
The R75 is a very nice receiver for the price, and one of my
smarter buys.
John Andrews, W1TAG
----- Original Message -----
Sent: Wednesday, November 28, 2001
01:25
Subject: LF: ICOM R-75
Dear,
I just
bought a new IC R75 to replase an old FRG-100 and I'm looking for any
modifications to improve the LF performance of the receiver.
Shematic diagram wasn't included with the manual.... It uses 10 DB or more
attenuation below 1,6 MHZ.
Any help will be very useful to improve me LF
instalation here.
Many thanks. Alex SV8QG
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