Sec.  80.143   Required frequencies for radiotelephony.

   (a) Except for compulsory vessels, each ship radiotelephone station licensed
   to operate in the band 1605–3500 kHz must be able to receive and transmit
   J3E emission on the frequency 2182 kHz. Ship stations are additionally
   authorized to receive and transmit H3E emission for communications with
   foreign coast stations and with vessels of foreign registry. If the station
   is used for other than safety communications, it must be capable also of
   receiving and transmitting the J3E emission on at least two other
   frequencies in that band. However, ship stations which operate exclusively
   on the Mississippi River and its connecting waterways, and on high frequency
   bands above 3500 kHz, need be equipped with 2182 kHz and one other frequency
   within the band 1605–3500 kHz.

   (b) Except as provided in paragraph (c) of this section, at least one VHF
   radiotelephone transmitter/receiver must be able to transmit and receive on
   the following frequencies:

   (1) The distress, safety and calling frequency 156.800 MHz;

   (2) The primary intership safety frequency 156.300 MHz;

   (3) One or more working frequencies; and

   (4) All other frequencies necessary for its service.

   (c) Where a ship ordinarily has no requirement for VHF communications,
   handheld VHF equipment may be used solely to comply with the
   bridge-to-bridge navigational communication requirements contained in
   subpart U of this part.

   [ 51 FR 31213 , Sept. 2, 1986, as amended at  52 FR 35244 , Sept. 18, 1987;  68 FR 46961 , Aug. 7, 2003]