Mailing List flyrotary@lancaironline.net Message #31080
From: Finn Lassen <finn.lassen@verizon.net>
Subject: Re: [FlyRotary] Radio Saga Beginning
Date: Sat, 08 Apr 2006 08:25:36 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
That wouldn't be prop (wind) and engine noise by any chance?
You're sitting inside the airplane with the canopy closed?
Try a different headset (different mic).

Finn


Joe Hull wrote:

Hey Buly (and anyone else)

I’ve got an RST intercom and an ICOM radio (don’t remember the number but only 1 year old).  When the engine is off I can hear and Xmit fine. Turn the engine on and I can still hear fine (i.e. no noise) but when I key the mic there is a ton of noise in my headset and in the broadcast. It’s not high pitched just a mid-range noise.

I ruled out the alternator by taking the belt off – noise was still there.

 

So why noise only when I transmit? Any thoughts?

 

Joe Hull

Cozy Mk-IV #991 (Done Building! In Phase1 Flight Test - 0 hrs flown)

Redmond (Seattle), Washington

 

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