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Thread: Wingtip ADSB Antenna with Uavionix Echo UAT

  1. #1
    Senior Member
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    Default Wingtip ADSB Antenna with Uavionix Echo UAT

    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.

    Jeff

    Current version (which works well)


    IMG_20180714_081831.jpg

    Original Version - (Not good)

    IMG_20180715_150016.jpg
    Attached Images Attached Images

  2. #2
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    wales,ny
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    Default Re: Wingtip ADSB Antenna with Uavionix Echo UAT

    Great tip Jeff , especially now that the mandate is upon us. I may add this simple upgrade to my already installed ADSB antenna based on your recommendation , thanks Bruce N199CL

  3. #3
    Senior Member bbs428's Avatar
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    Default Re: Wingtip ADSB Antenna with Uavionix Echo UAT

    I like it! I'll tuck this away for use later. Timely post.
    Somebody said that carrier pilots were the best in the world, and they must be or there wouldn't be any of them left alive. — Ernie Pyle

    Brett Butler
    Flying: 1998 Model 5 Outback, 912ul Zipper 110hp, G3x avionics, ss7 upgrades

  4. #4
    Senior Member Dave S's Avatar
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    Default Re: Wingtip ADSB Antenna with Uavionix Echo UAT

    Jeff,

    Curious where you have your Echo box mounted; and, how the coax is run/routed between the monopole and echo ?

    I couldn't figure that out from the original post.
    Dave S
    Kitfox 7 Trigear (Flying since 2009)
    912ULS Warp Drive

    St Paul, MN

  5. #5
    Senior Member
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    Default Re: Wingtip ADSB Antenna with Uavionix Echo UAT

    Everything is mounted on the end rib, and I
    Powered off the Nav light power. Simple.

    Jeff

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