1. Regulations
  2. title 47
  3. chapter I-i3
  4. part 78
  5. subpart D
  6. § 78.111

View all text of Subpart D [§ 78.101 - § 78.115]

§ 78.111 - Frequency tolerance.

Stations in this service shall maintain the carrier frequency of each authorized transmitter to within the following percentage of the assigned frequency.

Frequency band (MHz) Frequency tolerance Fixed (percent) Mobile (percent) 1,990 to 2,1100.005 6,425 to 6,5250.005 6,875 to 7,1250.005 12,700 to 13,250 10.0050.005 17,700 to 18,8200.00318,820 to 18,9200.00118,920 to 19,7000.003

1 Stations that employing vestigal sideband AM transmissions shall maintain their operating frequency within 0.0005% the visual carrier, and the aural carrier shall be 4.5 MHz ±1 kHz above the visual carrier frequency.

[52 FR 7145, Mar. 9, 1987, as amended at 68 FR 12776, Mar. 17, 2003]

AUTHORITY: 47 U.S.C. 152, 153, 154, 301, 303, 307, 308, 309.

SOURCE: 37 FR 3292, Feb. 12, 1972, unless otherwise noted.

CITE AS: 47 CFR 78.111