I don't think that is correct. The radio squelch sets the threshold for the
signal to noise ratio of the incoming radio signal. It has nothing to do
with mic circuit on the receiving aircraft. In practice, listening to a
distant weather broadcast for example: With the squelch on, it maybe that
nothing can be heard. However, adjusting the squelch, may well allow the
signal to be heard among the rest of the noise. On many modern systems, the
squelch is either on(level set automatically) or off.
regards,
MP (GJULZ)
----- Original Message -----
From: "Richard Holder" <rholder@avnet.co.uk>
Subject: Re: Europa-List: ANR Heasdsets
>
> You should be able to set the squelch to keep the level of background
noise
> picked up by the microphone to a minimum.
>
> Effectively it becomes voice operated. The mike circuit doesn't work until
> enough volts are produced inside the mike by the sound of your voice.
>
> 'orrible simplification !
>
> Richard
> Richard F.W. Holder 01279 842804 (POTS)
> Bell House, Bell Lane, 01279 842942 (fax)
> Widford, Ware, Herts, 07860 367423 (mobile)
> SG12 8SH email : rholder@avnet.co.uk
> Europa Classic Tri-gear : G-OWWW, High Cross
> PA-28-181 : Piper Archer : G-JANA, EGSG (Stapleford)
>
>
<carl_p@ntlworld.com>
> >
> > Yes and No, our radio and intercom are integrated (ICOM 200) so it would
> > require some rejigging to integrate a new intercom box in the circuit.
Might
> > be easier to fit an isolator switch on the mic (so you could hear
incoming
> > transmissions but not the noise from the mikes).
> >
> > It may be easier to replace the headsets for ones that are cleverer at
> > killing the noise.
> >
> >
>
>
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