I have seen that happen on ham radios before.  Almost always something in
the receive section.  

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Flying Pig
Sent: Friday, November 20, 2009 8:48 AM
To: [email protected]
Subject: Re: [Liveaboard] VHF antenna anomaly

From: "Densler, Vernon R (IT Solutions)" <[email protected]>
To: <[email protected]>
Sent: Friday, November 20, 2009 8:40 AM
Subject: Re: [Liveaboard] VHF antenna anomaly


> Doesn't sound like an antenna or cable problem.  If you were in
> Melbourne I could hook up my antenna analyzer and tell you for sure.
>
> Anyway it sounds like it's the receiver on the radio.  Could be a few
> things.  Desense is one possibility.  Could be some electronics on the
> boat that is doing it.  Did you add anything new?  Another possibility
> is that the radio has some corrosion in the helicoils in the receive
> section.  And lastly if you had someone very close by to you
> transmitting on the same channel you are listening to at high power then
> it could have blown out the receive.
>
> Again if you were in Melbourne I could put the radio on the service
> monitor and tell you what the receive looks like.
>
> If it is an antenna or cable problem and you are transmitting with it
> like that you will be sure to blow out the transmit side real soon.  Do
> you have an emergency antenna?  If not can you get one?  That would be
> one way to see if you get the same thing with a different antenna
> system.
>
> Vern
> s/v Nirvelli
>


I'm working on getting an extension to connect to the helm antenna feed; it 
works fine (but the helm radio crapped out a couple of days ago, too!).

The oddity is that we tx just fine, and some channels do just fine on rx...

L8R

Skip

Morgan 461 #2
SV Flying Pig KI4MPC
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