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VOR won't show to indication.

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schu(at)schu.net
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Posted: Sun Jun 22, 2008 4:10 pm Post subject: VOR won't show to indication.

List,



I'm having some problems with my VOR in my cessna 150 which has the 

RT328C radio.  The problem is that I can't get it to show a to 

indication.  The from indication seems to work and is consistent with 

what my GPS says so I dial 180* off and the needle kinda centers but the 

indicator shows off.



So far I have pulled the radio and head and had the avionics shop test 

it and it worked just fine on the bench showing to and from for the 

generated vor signal, so I figured the problem was the antenna cable.  I 

then replaced the antenna cable with RG400 using the balun shown here:



http://www.aeroelectric.com/articles/BALUN/Balun_Fabrication.html



There isn't any connectors or breaks in the cable as it runs directly 

from the radio up to the tail where the balun and antenna is.  My 

connections are clean so I'm certain that the cable isn't the problem.



The AWOS and identifier seem to come though ok, though there is some 

radio noise.



At this point I'm not sure what else to look at.  Anyone have any 

suggestions?



Thanks,

schu

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