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Subject: transponder ground plane
From: Jon Hadlich <hackmo15@gmail.com>
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Having installed 100's of antennas in carbon airframes I generally insist on
some type of ground plane. Antenna manufacturers recommend this practice
also.
There are guys that say they get satisfactory performance with the carbon as
a ground plane. If you plan to try this be sure and scuff the carbon till
you see fibers. That is critical to getting the antenna to bond electrically
to the carbon.
Good luck

BTW, the copper paint applied inside the airplane is a good ground plane and
is easy to apply as a retro fit installation.

-- 
Jon Hadlich
AI Systems
(541) 815-7381

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Having installed 100&#39;s of antennas in carbon airframes I generally insi=
st on some type of ground plane. Antenna manufacturers recommend this pract=
ice also. <br>There are guys that say they get satisfactory performance wit=
h the carbon as a ground plane. If you plan to try this be sure and scuff t=
he carbon till you see fibers. That is critical to getting the antenna to b=
ond electrically to the carbon.<br>
Good luck<br><br>BTW, the copper paint applied inside the airplane is a goo=
d ground plane and is easy to apply as a retro fit installation.<br clear=
=3D"all"><br>-- <br>Jon Hadlich<br>AI Systems<br>(541) 815-7381<br>
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up"></div><style type=3D"text/css">#avg_ls_inline_popup {  position:absolut=
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nt-size: 10px;  text-align: left;  line-height: 13px;}</style>

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