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Date: Fri, 10 Jun 2005 10:48:54 -0400
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From: "N320GG" <n320g@hotmail.com>
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Subject: [LML] Re: LNC2 - TruTrak altrak
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Thanks to all that posted.  Turns out it was nothing more than the proximity 
of the coax.  I used zip ties with 1 inch of fuel tubing as a spacer and the 
problem went away.  But now I can no longer use the fuel gauge as the 
transmitter indicator!  LOL
The Tru-Trak is working great, I am pleased.

I am so glad to have the LML to keep me informed and to help me solve 
problems, thanks to all posters.
Gary Melton
LNC2 N320GG 450hours


> Posted for Tammy and Mike Salzman <arrow54t@yahoo.com>:
>
>  Hi Gary,
>  I would think that the PTT circuit would not be capable of causing this
>  problem.  Usually, the PTT is used as a small amplitude signal to make
>  the audio panel close the transmit relay...
>  The more likely antagonist is RF from your Xmit antenna or coax cable
>  inducing noise in your avionics.  If you can, try temporarily
>  relocating the antenna and see if anything changes.  If you have access
>  to a 50 ohm dummy load of adequate power rating for your radios output,
>  you can substitute that in place of the antenna for testing.  I don't
>  recommend transmitting without an antenna installed, you could blow the
>  transistors in your radio.
>  Keep us informed of your troubleshooting.
>  TruTrak has provided me with superior technical assistance with my
>  installation.  They are your best bet at this point.
>  Mike Salzman
> Fairfield, CA
>  LNCE
>
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