Paul, I had the same problem with my Lightspeed 25. I sent it to Lightspeed
and they replaced the mic. That fixed it! Apparently the design allows some
feed back depending on the setup in ones plane. I don't understand it but it
now works. Call them, they were very helpful and had a fast turn around.
Jerry Rehn N645XS
----- Original Message -----
From: "Paul McAllister" <paul.mcallister@qia.net>
Subject: Europa-List: Avionics question
<paul.mcallister@qia.net>
>
> Hi all,
>
> I have been struggling with an issue which I have now been able to
quantify. When I try and transmit ( IIMorrow GX60) I get an awful squeal in
the headset. To trouble shoot I removed the intercom and wired my
microphone and headset socket directly to the radio and it still squealed
when trying to transmit. My headsets are LightSpeed 25k's
>
> I then tried a different set of headsets and it worked just fine (Telex
3500), tower reported a clear transmission. Just as a cross check I tried
my Light Speed headsets on my Vertex handheld and they did the same.... made
a squeal when trying to transmit. These headsets work perfectly in my
Comanche which has a Signtronics intercom.
>
> It would seem that the problem is isolated to my Lightspeed headsets, any
one have any suggestions ?
>
>
> Paul
>
>
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