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RE: Europa-List: Transponder antenna

Subject: RE: Europa-List: Transponder antenna
From: Terry Seaver terrys <terrys@cisco.com>
Date: Mon, 18 Apr 2005 11:08:39

The glass is transparent, but the engine, firewall, instrument panel,
etc. aren't.  If you assume the radar is dead ahead of you, mounting the
xponder antenna directly behind all that may hide it from the intended
audience.  We mounted ours under the belly, just behind the wheel, with
the assumption that it would be visible to the destination airport's
radar.

Regards,
Terry Seaver
A135 / N135TD


-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Gilles
Thesee
Subject: Re: Europa-List: Transponder antenna

--> <Gilles.Thesee@ac-grenoble.fr>

M@nsfield a crit :

>Anybody know why I shouldn't mount the stub antenna internally (glass 
>is transparent, isn't it?) behind the baggage bay, without being too 
>far from the xpdr unit and without degrading the signal significantly?
>  
>
Paul,

We hid a TED stub antenna, $ 20 in the lower rear fairing (MCR 4S).
RG 400 coax. Works wonderfully.
See http://gilles.thesee.free.fr/Ant_XPDR.htm
You can hide your COM/NAV/XPDR antennas provided the skin is not
conductive.

The antenna is available at
See http://www.aircraftspruce.com/catalog/avpages/ted_transponder.php

Hope this helps,
Regards,

Gilles Thesee
Grenoble, France



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