Am I the only one to find some irony in FCC being concerned about
spurious emissions from ham HF rigs, but wanting to pollute HF with
BPL?
rob/K5UJ
From ARRL Letter, V. 23, no. 19:
The most extensive and substantive rule change involves §97.307, Emission
standards, where the FCC revised the wording of §97.307(d), which defines
spurious emissions. The updated language imposes a slightly higher
standard on newer transmitters or amplifiers of any power level. Starting
June 1, the rule will provide that:
* the mean power of any spurious emission from HF transmitters or
external RF power amplifiers installed after January 1, 2003, must be at
least 43 dB below the mean power of the fundamental emission.
* the mean power of any spurious emission from HF transmitters or
external RF power amplifiers installed on or before January 1, 2003, must
not exceed 50 mW and must be at least 40 dB below the mean power of the
fundamental emission. If the mean power output of such as transmitter is
less than 5 W, the attenuation must be at least 30 dB.
Still exempt from the provisions of §97.307(d) are transmitters built
before April 15, 1977, or those first marketed before January 1, 1978.
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