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Federal regulations · Through 2026-08-25 · Newer source version available

47 CFR 73.1545: Carrier frequency departure tolerances.

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Where this section sits in the code
  1. Title 47—Telecommunication
  2. CHAPTER I—FEDERAL COMMUNICATIONS COMMISSION
  3. SUBCHAPTER C—BROADCAST RADIO SERVICES
  4. PART 73—RADIO BROADCAST SERVICES
  5. Subpart H—Rules Applicable to All Broadcast Stations

(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) [Reserved]

(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.

Collected 2026-08-27T02:26:28Z. Source file · JSON

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