> I am installing a GX60 and I seem to recall a minimum size requirement for
> the GPS antenna, however upon scouring the installation manual I can't
> find a reference to this. Has anyone out there had experience with
> installing approach certified GPS unit and have any recommendations ?
>
> Thanks Paul
My Apollo GX-65 manual is silent re ground plane also, likely due to its being
largely irrelevant for airborne use. The circularly polarized antenna inside
is of unique design, nothing like a 1/4-wave whip antenna which needs a ground
plane for sure. It's thus designed to work in conjunction with the metal base
of the antenna package they give you.
Regards,
Fred F.
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