{"data":{"id":"us/47-cfr-22.355","jurisdiction":"us","citation":"47 CFR 22.355","heading":"Frequency tolerance.","body":"Except as otherwise provided in this part, the carrier frequency of each transmitter in the Public Mobile Services must be maintained within the tolerances given in Table C-1 of this section.\nTable C-1—Frequency Tolerance for Transmitters in the Public Mobile Services\nFrequency range (MHz) Base, fixed (ppm) Mobile \u003e3 watts (ppm) Mobile ≤3 watts (ppm)\n25 to 50 20.0 20.0 50.0\n50 to 450 5.0 5.0 50.0\n450 to 512 2.5 5.0 5.0\n821 to 896 1.5 2.5 2.5\n928 to 929 5.0 n/a n/a\n929 to 960 1.5 n/a n/a\n2110 to 2220 10.0 n/a n/a","path":["Title 47—Telecommunication","CHAPTER I—FEDERAL COMMUNICATIONS COMMISSION","SUBCHAPTER B—COMMON CARRIER SERVICES","PART 22—PUBLIC MOBILE SERVICES","Subpart C—Operational and Technical Requirements"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-47.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:28Z","sha256":"7fc56866aa714a5e043612d8fd8cf88bff19067742342755493964208aa1efc5","source_id":"us-cfr","stale":true,"prev":"us/47-cfr-22.353","next":"us/47-cfr-22.357"},"notice":"GroundRules: Original legal text. Not legal advice."}