Ron, As a P.S. I should say that my GA35 is in the over head space along
with an antenna for my back up GPS496 because I have my nav aerial at
the top of the tunnel just behind the D panel and my transponder antenna
attached to the bottom of the tail weight tower and of course the radio
antenna in the tail fin. That plan hoped to spread them out optimally
and it has worked very satisfactorily. David
On 2020-09-25 09:02, davidjoyce@doctors.org.uk wrote:
> Ron, I have a GA35 antenna for my G3X touch system with GPS20A and
> GTX45R. The installation instructions at the time (Rev B) made no
> mention of a ground plate and mine is installed at head level between
> the doors on a ply panel filling that recess with no form of ground
> plate. It has worked perfectly with all tests OK. I note that in the
> current Rev F instructions it does not say a ground plane is necessary,
> simply something like 'for best results a ground plane is advisable.'
> It would not be too difficult putting a ground plane in that space
> although it would not be as wide as recommended but I see no reason to
> do so in the light of my experience. Regards, David Joyce, GXSDJ
>
> On 2020-09-25 01:14, rparigoris wrote:
>
>>
>> Hi Bill The Garmin GA 35 is an active antenna and requires a ground
>> plane that extends 7.5" off the edge of the antenna. Somehow 5vdc gets
>> put in and being active it amplifies signal. I spoke to Garmin and
>> Steinair and both said it's necessary. Comant antenna does not need a
>> ground plane. Ron P.
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=4985; -->
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