|
Message
Well, I just came from the hangar, 9PM and have not made
any progress. Tried everything suggested. Disconnected the
radio/AP grounds and run them directly to the battery - same
problem Opened the AP and extra grounded the unit - Nada Everything that
can make noise is making it? Capacitors as suggested by Chad, did not make
any difference. I'll have to sleep on it. Too tired and
frustrated. Buly
Hi
Buly,
I've coward away from
this thread, mostly because of the potential to get really complicated.
However, I have had some significant alternator noise on Val Com 760 radios in
the past, and was told by Val to install a noise choke that Radio Shack
sells. It's part number 270-030A, which consists of a small
transformer, and cap that goes in the power wire that feeds the radio.
This little choke kit was like magic for me, and several others with Val radios
(Rich will find one of these on his plane as well).
Now, I don't know what
radio you have, but if it's a Val, you need one of these kits. If not,
then it sure won't hurt, and could do some real good. I'll also warn you
that you won't find this part number online. When I looked for the one for
the RV-3, I thought they might have discontinued it, but it was hanging on the
shelf at the store, even though it wasn't online.
Good
luck,
Rusty (RF noise is not
the MRI's friend)
|