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Old 30th Sep 2017, 10:33 am   #2
Peter.N.
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Join Date: Jul 2008
Location: Charmouth, Dorset, UK.
Posts: 3,601
Default Re: Why is aeronautical VHF AM?

I've wondered that - but not enough to do any research. Presumable it worked OK so they have kept it. Being VHF there's not to much noise about anyway, especially in an aircraft or the middle of an airfield.

I had AM PMR for many years and it seemed to work as well as FM.

Peter
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