I put my stub antenna from Uavionix in my wingtip, and made a copper tape ground plane
and flew for a while. I noticed my ADSB reports were showing dropped packets, so I started
thinking why this might happen ..? My guess is that in a bank the ground plane masks the
stub from line of site with the towers. So having played a lot with a home made Stratux in
the past I knew about an antenna called a "ADSB Spider" (from google) so I fabricated
one of these as illustrated in the picture below, and peeled out all the copper ground plane
tape and replaced it.
Results - Much better adsb reports, and I see more traffic.
The spokes are 69mm long, and at about a 40-45 degree angle, it's simply thin copper tubing
that I had in the shop and it soldered forming a ring that goes under the nut and washer of
BNC connector.
The wood mount is not used, it is simply something I made to mount the antenna in the wingtip
when I first was testing it. I tossed it, and simply used the hole from the first version.
Wingtip ADSB Antenna with Uavionix Echo UAT
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