Hi Dave,
I don't know the relay(s) used in the HF-2500, but I wonder if this problem
is one of the RX/TX relays in the amp (either input or output side contacts)
that is starting to go bad? Sort of like what K5RC was talking about
earlier this week.
Just an idea.
73,
Tim K3LR
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
Behalf Of K1TTT
Sent: Saturday, December 06, 2008 9:12 AM
To: Amps
Subject: [Amps] rx noise?
I have a commander hf-2500 (pair of 3cx800a7's, no qsk) that seems to be
working fine. However, during cqww cw last week I had to pull it off the
20m station because it was making a broadband noise while on receive. I put
it back on the station today and it isn't doing it now. I tried warming it
up a bit and it still didn't do it....though its obviously not as warmed
through as after 40 or so hours of cqww. The only other thing I noticed is
when it was doing it the plate voltage dropped a bit, maybe 50-100v, but I'm
not sure if that was a cause or effect since the line voltage sag from the
other stations can make the hv sag a bit here. Any ideas where to start
looking??
David Robbins K1TTT
e-mail: mailto:k1ttt@arrl.net
web: http://www.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
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