I've got the Archer dipole in my Europa. It is mounted about 6" forward of
the inspection hole at the bottom of the fin. It works fine.
I would be concerned about flying with a transponder aerial mounted in the
baggage area. The radiation is damaging to eyes etc and the aerial should
be mounted as far away as possible from the crew.
More info on exposure risk is available at
http://www.pfa.org.uk/Consultation%20and%20Lobbying/Mode%20S/Non-ionising%20
Radiation%20Risks%20and%20Mode%20S.pdf
(The line might wrap so you may have to stitch)
Simon
_____
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of
jimpuglise@comcast.net
Sent: 18 December 2006 03:39
Subject: Re: Europa-List: Ground Plane
Al-
I have mine installed but have not used it yet. I think you are going to be
much better off with a vertical dipole in the Europa than a ground plane.
The Archer antenna the others spoke about is a vertical dipole. Mine is
fastened to a piece of balsa wood that is fitted to the contour of the
fuselage on the port side as far aft as possible. It is just about opposite
the inspection port in the root of the rudder. I'll let you know how it
works in a year or so.
Jim Puglise - A-283
-------------- Original message --------------
From: "AlStills" <astills@cox.net>
>
> Hi all,
> I've been having a little problem with ATC reading my transponder all the
> time. I suspect a bit of shadowing.. I have the 2 1/2"-3" transponder
> antenna mounted
> upside down on a shelf on the rear corner of the baggage bay. I have a 6"
> steel ground plane mounted to the antenna. What size ground plane have
> others used
> successfully and where is your antenna mounted. ATC reads me better out of
> KGEU with a feed from Luke AFB while KDVT (where I'm hangered) gets their
> feed
> from Phoenix Sky Harbor airport. By far KDVT is worse than KGEU. I know
> there is difference in the feed from the different radars but n eed to R>>
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