An other solution is a dipole antenna inside the fuselage.
There is no Ground Plane with this kind of antenna and nothing outside
the fuselage.
Available from Spruce. Part #: 11-04212.
See:http://www.aircraftspruce.com/catalog/avpages/antennasystems1.php
See the attached pictures about the installation inside my Classic with
the TRIG TT21 main unit
close to the antenna. The same installation has been made with the radio.
These installations has been passed all the checks and work fine.
Best regards, Ruedi
Am 24.12.2017 um 09:17 schrieb Ivor:
>
> like wise i fitted a trig 21 mode S replacing my Garmin 327 and kept the
> same size ground plane as Bob Nuckolls suggested,
> it works fine so why put in more weight for no quantifiable return
> merry christmas
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=476732#476732
>
>
--
Ruedi Vogel
Wiesenweg 6
CH-3380 Wangen a.A.
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