Message-ID: <002d01be5706$046fab00$10c295cf@bill>
From: "William T Bartlett" <wtbart@olympus.net>
To: <lancair.list@olsusa.com>
Subject: Antenna placement
Date: Fri, 12 Feb 1999 20:04:45 -0800
Mime-Version: 1.0

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COMMUNICATIONS
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COM 1 Weir dipole vertical stabilizer

COM 2 Weir dipole baggage compt behind left seat

NAVIGATION
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GPS 1 on glare shield    GPS 2 - HH Backup in my dreams

NAV 1 Weir dipole left wing

NAV 2  Weir dipole right wing

Glide Slope Weir dipole under passenger floorboard

Marker Beacon Weir dipole in H stabilizer (it doesn't have to run fore
 & aft)

OTHER
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Strike Finder In my dreams

Transponder Under pilot floor board. This occasionally is blanked. I
think by the carbon fiber in the spar caps. I do have a Weir transponder
antenna in a wing, but it won't work. I have made several Weir
transponder antennas and none of them would work. The rest of Weir's
stuff is the greatest and all my antenna cost less than $10.

ELT Weir dipole made of  # 18 wire in baggage compt behind passenger

All antennae have great VSWR readings. I had trouble with no range on the
com when I first started.  The problem turned out to be the cheap
intercom (Softcom) I had installed. The cheap intercoms have
no filtering
or RF caps and in a RF transparent airplane it fouled the transmitter.
I have seen this in various other airplanes subsequently including a
C140 that had skylights that were inline with the com antenna and
the intercom.

Bill N7WB