[Amps] Where is power measured ?
Roger D Johnson
n1rj at roadrunner.com
Wed Apr 6 05:38:09 PDT 2011
On 4/6/2011 8:11 AM, Jim Thomson wrote:
> Someone mentioned that in the US, the power is measured at the back of the amp.
> Your rules don't stipulate where it's actually measured. Dave Leeson, and other's,
> contacted FCC officials, and the FCC said it was reasonable to measure the power at the
> load, IE: ant feed-point. US broadcast TX are measured at the feed-point, or close to it, not the
> output of the amp at base of tower.
>
FCC rules 97.313
(b) No station may transmit with a transmitter power exceeding 1.5 kW PEP
73, Roger
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