FCC 2.1047 Revised as of October 1, 2014
Goto Year:2013 |
§ 2.1047 Measurements required: Modulation characteristics.
(a) Voice modulated communication equipment. A curve or equivalent data
showing the frequency response of the audio modulating circuit over a
range of 100 to 5000 Hz shall be submitted. For equipment required to
have an audio low-pass filter, a curve showing the frequency response
of the filter, or of all circuitry installed between the modulation
limiter and the modulated stage shall be submitted.
(b) Equipment which employs modulation limiting. A curve or family of
curves showing the percentage of modulation versus the modulation input
voltage shall be supplied. The information submitted shall be
sufficient to show modulation limiting capability throughout the range
of modulating frequencies and input modulating signal levels employed.
(c) Single sideband and independent sideband radiotelephone
transmitters which employ a device or circuit to limit peak envelope
power. A curve showing the peak envelope power output versus the
modulation input voltage shall be supplied. The modulating signals
shall be the same in frequency as specified in paragraph (c) of
§ 2.1049 for the occupied bandwidth tests.
(d) Other types of equipment. A curve or equivalent data which shows
that the equipment will meet the modulation requirements of the rules
under which the equipment is to be licensed.
[ 39 FR 5919 , Feb. 15, 1974. Redesignated and amended at 63 FR 36599 ,
July 7, 1998]
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