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Earl:<br>
I find that extremely interesting. The only radio I've had to run a
bonding wire with was my first one, a Babcock 3 channel ca. 1954. They
wanted everything bonded, from the rudder control wire, rudder/throttle
exscapements, servo case, etc.<br>
up to and including the engine. Every piece of metal on the airplane,
including the landing gear. What a pain! It was, of course, AM.<br>
<br>
Bill Glaze<br>
<br>
<a class="moz-txt-link-abbreviated" href="mailto:EHaury@aol.com">EHaury@aol.com</a> wrote:<br>
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<div>Wayne</div>
<div> </div>
<div>I've no experience with the full carbon fuse - antenna issue.
However, a few years ago I experienced all sorts of range / glitching
problems in an airplane that had metallic paint, metal cables and other
potential points of metal - metal contacts (landing gear, landing gear
door mechanisms, etc.) Running the antenna through a wing helped a
bunch, as it moved the antenna away from noise generators. The real fix
was to wire all metal objects together with a "ground wire" that was
connected to the negative battery lead. Antenna then worked fine inside
the fuse. All this was with an AM receiver on 6-meters. </div>
<div> </div>
<div>A similar experience occurred with a different airplane that had
a small fuselage and a lot of servo leads near a good portion of the
antenna, range was nonexistent until moving the antenna to the wing. In
this case the receiver was single conversion FM on 6-meters.</div>
<div> </div>
<div>My conclusions were that the metallic paint is not a problem,
metal to metal generated noise is (at lease with AM), and antenna -
servo lead proximity can be. </div>
<div> </div>
<div>I've not had any problems with dual-conversion FM on 6-meters
with the antenna inside or outside the fuse, although I maintain a
couple of inches separation between servo leads - cables and the
antenna. </div>
<div> </div>
<div>Current flights with the Partner haven't demonstrated any issues
with the antenna inside the Kevlar rear of the fuse (as expected),
although I've flown head on trimming stuff that has put the carbon
front of the fuse between the antennae.</div>
<div> </div>
<div>Earl</div>
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