GB> 75th Anniversary of FM Radio Special Event

kd4e doc at KD4E.COM
Tue Dec 2 23:53:08 EST 2008


I recall discussing this back when I was contemplating the 
restoration of a Sonar HF exciter and it was determined that 
the legal restriction made it functionally impractical to 
run FM below 10M, despite the technicality that it was 
theoretically possible - not sure if it was that the 
modulation would be too pinched or if it was that FM was 
insufficiently efficient to make sense there.  Memories 
fails other than that I was persuaded that it would be a 
Quioxtic undertaking.

WDYT?

> FM and PM are legal on any frequency that phone operation
> is allowed except for the 60 meter band.  The only
> restriction is that the modulation index cannot exceed 1
> on frequencies below 29.0 MHz.
> 
> Glen, K9STH


-- 

Thanks! & 73, doc, KD4E
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