Hi! Richard,
My aerial for the transponder is a small rod with a chrome knob on the end
pointing down out of the bottom of the plane but I have a piece of aluminium
which is laid round the base of the fuselage and almost up the sides as a
ground plane. It is the same aerial as I used for the original Mode c
Transponder.
Bob H G-PTAG
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Richard Iddon
Sent: 14 March 2012 06:37
Subject: Europa-List: Transponder aerial
>> I am planning to fit a Mode S transponder. My current setup is a Microair
T2000 which has worked OK but occasionally ground stations report no signal
so I would like to look at improving my aerial setup at the same time. I
plan to upgrade the coax from RG58 to RG400. My current ground plane is an
aluminium plate about 8in diameter, half moon shape with a lip which is
fixed behind the baggage bay bulkhead.
>>
>> Suggestions for improvement from those with more knowledge on the black
art of radio waves?
>>
>> Richard Iddon
>>
>> G-RIXS
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