Icom IC-A14 feed back with headset

[Pictreed]

I'm trying to fly my plane to another airport to have the radios worked on so I have to use a hand-held radio but when I connect my Lightspeed headset to my Icom with the adapter they sell I get the high pitch feedback sound you get when you put a microphone too close to a speaker. 

Tried adjusting squelch, hold radio behind me, and other things.  If I hold it horizontal right in front of me it stops.

I tried turning off noise cancelling too.

It happens inside or outside the plane. 

Any ideas?

I'm going to try an A20 headset tonight and see if it still happens.

Tim

[Marauder]

1 hour ago, Pictreed said:

I'm trying to fly my plane to another airport to have the radios worked on so I have to use a hand-held radio but when I connect my Lightspeed headset to my Icom with the adapter they sell I get the high pitch feedback sound you get when you put a microphone too close to a speaker. 

Tried adjusting squelch, hold radio behind me, and other things.  If I hold it horizontal right in front of me it stops.

I tried turning of noise cancelling too.

It happens inside or outside the plane. 

Any ideas?

I'm going to try an A20 headset tonight and see if it still happens.

Tim

Do you have your cell phone on you when this is happening?

[Pictreed]

Not a cell phone issue...I think.  Let me test that idea.

So far I think it's an issue with the Zulu 2 headset.  The Bose worked fine.  

Not sure if it's just the way the headset is or if there's a problem with them. 

But I'll also hold the phone near the Bose and see if I can recreate the issue. 

[Piloto]

Try lowering the volume on the Icom and the headsets. Keep the Icom away from the microphone. The Icom speaker may not be completely muted when the headset is plugged.

José

[Pictreed]

I just found a few articles that say that Icom radios produce the RF problem.  Ferrite loops get rid of it so I assume the Bose has it built in :-/  

So if you're using your Icom as a backup radio with your Lightspeed or David Clark headset it may not work...my plane looked like a Pong game on my iPad as I turned away from the Class D airspace today when they didn't respond...lol.

I will keep a set of Bose with me.  I might like them better...who knows.

There should be some electrical engineers here, right?  Is there a way to fix this?  Can you get a really large ferrite 'ring' and wrap your wires through it?

Tim

[Pictreed]

22 minutes ago, Piloto said:

Try lowering the volume on the Icom and the headsets. Keep the Icom away from the microphone. The Icom speaker may not be completely muted when the headset is plugged.

José

Ya lo hice. That's what I thought but it didn't work. 

Tim

[N601RX]

Your Light Speed headset has a mic gain on it. Turn it down some.  If I remember correctly it's a small screw under the mic cover. If this causes the regular radio to be too low there is a mic gain on the audio panel to compensate. 

Its possible your handheld might have the adjustment also.

[Pictreed]

There are dip switches that have gain control.  I may try one of those. 

Tim

[N601RX]

Look for an adjustable pot or removable cover near the mic. Slide the windscreen cover back. On the Lightspeeds I have owned the dipswitches didn't control the mic gain. Its usually a variable adjustment.

 

[Pictreed]

Tried the pot switch. 

Bose still works flawless.