receiver antenna placement

[EHaury at aol.com]

Wayne

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. 

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.

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. 

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. 

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.

Earl
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