C.F.R. » Title 47 » CHAPTER I—FEDERAL COMMUNICATIONS COMMISSION › SUBCHAPTER D—SAFETY AND SPECIAL RADIO SERVICES › PART 95—PERSONAL RADIO SERVICES › Subpart B—Family Radio Service (FRS)

47 C.F.R. § 95.575

FRS modulation limits

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Each FRS transmitter type must be designed such that the peak frequency deviation does not exceed 2.5 kHz, and the highest audio frequency contributing substantially to modulation must not exceed 3.125 kHz.