U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 21, 2026

All TitlesTitle 47Chapter IPart 80Subpart H - Subpart H—Frequencies

RADIOTELEGRAPHY AND DATA
§ 80.351 - Scope.
§ 80.353 - [Reserved]
§ 80.355 - Distress, urgency, safety, call and reply Morse code frequencies.
§ 80.357 - Working frequencies for Morse code and data transmission.
§ 80.359 - Frequencies for digital selective calling (DSC).
§ 80.361 - Frequencies for narrow-band direct-printing (NBDP), radioprinter and data transmissions.
§ 80.363 - Frequencies for facsimile.
§ 80.364 - Frequencies for VHF digital small message services (VDSMS).

RADIOTELEPHONY
§ 80.365 - Scope.
§ 80.367 - General uses—radiotelephony.
§ 80.369 - Distress, urgency, safety, call and reply frequencies.
§ 80.371 - Public correspondence frequencies.
§ 80.373 - Private communications frequencies.
§ 80.374 - Provisions for frequencies in the 4000-4063 and the 8100-8195 kHz bands shared with the fixed service.

RADIODETERMINATION
§ 80.375 - Radiodetermination frequencies.
§ 80.376 - Radio buoy operations.

SHIP EARTH STATIONS
§ 80.377 - Frequencies for ship earth stations.

AIRCRAFT STATIONS
§ 80.379 - Maritime frequencies assignable to aircraft stations.

OPERATIONAL FIXED STATIONS
§ 80.381 - Frequencies for operational fixed stations.

VESSEL TRAFFIC SERVICES SYSTEM (VTS)
§ 80.383 - Vessel Traffic Services (VTS) system frequencies.

AUTOMATED SYSTEMS
§ 80.385 - Frequencies for automated systems.

ALASKA FIXED STATIONS
§ 80.387 - Frequencies for Alaska fixed stations.

MARITIME SUPPORT STATIONS
§ 80.389 - Frequencies for maritime support stations.

DEVELOPMENTAL STATIONS
AIS STATIONS
§ 80.393 - Frequencies for AIS stations.
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