978 MHZ UAT home brew antenna

Made a F-type version of the 1/4 wave ground plane antenna for 978 & 1090 using RG-6 cable.

I bought one of the F-type wall plates rated for +2 GHz and removed the coax post with washer/nut. I then soldered 3 of the ground plane leads to the 4th lead that has a copper wire loop that fits over the coax post …

I installed the ground plane on the coax post between 2 large washers and tightened/locked it in place with the original washer/nut combo, bent the 4 leads down to a 45-degree angle, and then inserted the center antenna lead to complete the assembly.

The original clipped 1090 antenna was picking up planes ~50 miles away and this new F-type antenna has picked up a few planes 80 miles away.

2 Likes