FCC 73.1545 Revised as of October 1, 2007
Goto Year:2006 |
2008
Sec. 73.1545 Carrier frequency departure tolerances.
(a) AM stations. The departure of the carrier frequency for monophonic
transmissions or center frequency for stereophonic transmissions may not
exceed ±20 Hz from the assigned frequency.
(b) FM stations. (1) The departure of the carrier or center frequency of an
FM station with an authorized transmitter output power more than 10 watts
may not exceed ±2000 Hz from the assigned frequency.
(2) The departure of the carrier or center frequency of an FM station with
an authorized transmitter output power of 10 watts or less may not exceed
±3000 Hz from the assigned frequency.
(c) TV stations. (1) The departure of the visual carrier frequency of a TV
station may not exceed ±1000 Hz from the assigned visual carrier frequency.
(2) The departure of the aural carrier frequency of a TV station may not
exceed ±1000 Hz from the actual visual carrier frequency plus exactly 4.5
MHz.
(d) International broadcast stations. The departure of the carrier frequency
of an International broadcast station may not exceed 0.0015% of the assigned
frequency on which the station is transmitting.
(e) Class A TV stations. The departure of the carrier frequency of Class A
TV stations may not exceed the values specified in Sec. 74.761 of this chapter.
Provided, however, that Class A TV stations licensed to operate with a
carrier offset, including those stations licensed with a maximum effective
radiated power and/or antenna height greater than the values specified in
their initial Class A TV station authorization, must comply with paragraph
(c) of this section.
Note to paragraph(e): At a date not later than nine months after release of
the Memorandum Opinion and Order on Reconsideration in MM Docket No. 00–10
(the proceeding that established the Class A TV service), all licensed Class
A stations must operate with a carrier frequency offset. See Memorandum
Opinion and Order on Reconsideration, In the Matter of Establishment of a
Class A Television Service, MM Docket No. 00–10, released April 13, 2001.
[ 44 FR 58734 , Oct. 11, 1979; 44 FR 64408 , Nov. 7, 1979, as amended at 47 FR 13165 , Mar. 29, 1982; 65 FR 30004 , May 10, 2000; 67 FR 21691 , May 1, 2001]
Effective Date Note: At 66 FR 21691 , May 1, 2001, Sec. 73.1545 was amended by
revising and adding a note to paragraph (e). This paragraph contains
information collection and recordkeeping requirements and will not become
effective until approval has been given by the Office of Management and
Budget.
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