Thread: MRT PTX transponder? confused?
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Old 17-03-2017
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Teaboy Teaboy is offline
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Join Date: Apr 2011
Location: Sunny Cwmbran
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Ive just dug out an old MRT transponder and it flashes with a red light rather than blue that my other transponder flashes with is this the pre rc4 one?

Not sure if the red light means its not working anymore.

Cheers

Rich
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