[MRCA] [MMRCG] AT-803 coaxial stub

[Tim]

Hi Ray - I'm not familiar with the AT-803 but it sure looks exactly like
the radiating element of the AS-390 standard UHF shipboard antenna.  Aka
the "Spider", center fed dipole, 225-400 mc.  The mounting plate has
radials welded to it, very bullet proof.  Radials at the base of a center
fed vertical dipole?  Yup...
Tim
N6CC

On Wed, Oct 27, 2021 at 7:19 AM Ray Fantini <RAFANTINI at salisbury.edu> wrote:

> I have a AT-803 Coaxial Stub antenna that to me looks like a fat vertical
> dipole. It appears to be designed for mounting on flat surfaces and covers
> 225 to 400 MHz Want to install it on my M151A1 and use as a receive antenna
> on the UHF aviation band with the URC-110
>
> Figure I can throw together a bracket maybe attached to the mount of the
> 110 being that the back of the mutt is somewhat full of sticks now with the
> huge whip for the GRC-106, medium antenna for the RT-524 and small antenna
> for the VHF side of the 110 but the issue is that looking at the antenna it
> appears to me to be a dipole and figuring if it’s a dipole it won’t need a
> ground plane or radials but in seeing other beer can antennas think they
> may have had a ground plane attached.
>
> Anyone have any thoughts about if this would need a ground plane or not?
>
>
>
> Ray F/KA3EKH
>
>
>
>
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