[Moon-net] two stage preamp

Peter Voelpel df3kv at t-online.de
Mon Nov 6 16:08:02 CST 2006


Either your transverter must be dumb, or you use lossy cable.
Otherwise I see no reason for such preamps.
So I would first improve that situation before using cascaded preamps.
Any preamp causes additional noise and weakens your IP3

73
Peter

-----Original Message-----
From: Moon-net-bounces at list-serv.davidv.net
[mailto:Moon-net-bounces at list-serv.davidv.net] On Behalf Of Mark Farrugia
Sent: Montag, 6. November 2006 22:40
To: Moon net
Subject: [Moon-net] two stage preamp

Hi All

I would like to know what is best in two stage preamp on 1296 , at the
moment I am using a cavity preamp as 1st stage and right after it a normal
(dj9bv)preamp with a total gain of round 35 db both at the feed.

Is it best to install the second preamp at a distant position from the 1 st
stage ? the reason I am asking as It seems that i have some overload on the
transverter on local strong signals.

thanks for the advice

73 Mark 9h1bn
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