[RFI] DirecTV to ground or not to ground

Paul Christensen w9ac at arrl.net
Sun Dec 21 15:41:27 EST 2008


> It looks as if the NEC is here concerned not with electrical
> characteristics, but with mechanical ones. Cortland
> KA5S

It may be related to both mechanical and electrical safety concerns since 
the NEC (Sec. 810) dictates wire size irrespective of RF power level -- and 
that the specified gauges are adequate for maximum authorized FCC power in 
the amateur service.  Perhaps the concern is with the feeding of a thin wire 
radiator/transmission line with high power, and a portion begins to burn, 
fall, then comes in contact with persons or flammable materials.

Paul, W9AC

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