Thanks for all the inputs on transponder selection. I was surprised to
hear that it was possible to fit the Garmin 328as it is significantly
longer than a Garmin/Apollo SL40 radio which only just fits. I guess
the extra length must all be in the connector.
Having trawled the net for more info I have come to a similar
conclusion to Rowland. The points which I found to be significant were
as follows:
1. The Garmin 328 is a tight fit and is by far the heaviest and is
more limited in its capabilities
2. The Trig and the Filser are both much lighter with the Filser
including the encoder which saves even more weight and is simpler to
connect up.
3. The Filser is the cheapest of those available that fit in the
normal avionics stack.
4. The Filser offers a flip/flop type code selection like most radios.
5. The Garmin is the only one to offer dedicated number buttons for
entering codes. We use this way of inputting codes in our airliner
transponders and it is by far the easiest.
6. The power output is a little confusing. Most of them offer 250W
output from the set with an estimated 125W at the antenna. Some
manufacturers quote set power and others antenna power.
7. The Becker is significantly more expensive than the rest and seems
to offer no advantages to justify the extra price.
>From the above, on balance the Filser seems to be the most suitable
for my requirements.
Regards
Nigel Charles
-----Original Message-----
From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-
server@matronics.com] On Behalf Of Remi Guerner
Sent: 23 August 2008 19:29
Subject: Europa-List: Mode S transponders
Hi Nigel,
I have replaced my GTX320 by a 328. In spite of being deeper, the 328
fits perfectly in the same place as the 320. Same panel cut out, too.
However, a 90 degree elbow antenna connector is required. Same panel
cut out, too.
Regards
Remi Guerner
F-PGKL
options for replacing my Garmin 320 transponder. The logical choice
would initially appear to be the Garmin 328. However having checked on
the specifications the 328 is too deep for the central avionics stack
on
the Europa
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