[BC] AM daytimers

[Phil Alexander]

On 22 Feb 2006 at 8:34, Dan Strassberg wrote:


> A few Class C AMs (AKA graveyarders) that run 250W may still be around. The
> minimum efficiency for Class C AMs is 241.5 mV/m/kW @ 1km. A 250W Class C
> could thus have an RMS of only 120.8 mV/m @ 1 km, yet the FCC would still
> not consider it a daytimer. 

Originally, Class IV's were granted 250 W maximum with some permitted at
100 W. I haven't looked it up, but there may be some 100 W grandfathered
Class C nighttimers on the air today. IIRC, some provisions in the rules
refer to such.

Phil Alexander, CSRE, AMD
Broadcast Engineering Services and Technology 
(a Div. of Advanced Parts Corporation) 
Ph. (317) 335-2065   FAX (317) 335-9037





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