47 CFR Ch. I (10–1–10 Edition) § 80.143

§ 80.143 47 CFR Ch. I (10–1–10 Edition)

90–160 kHz must be capable of transmit- (2) The primary intership safety fre- ting and receiving Class A1A emission quency 156.300 MHz; on the frequency 143 kHz, and on at (3) One or more working frequencies; least two additional working fre- and quencies within this band except that (4) All other frequencies necessary portion between 140 kHz and 146 kHz. for its service. (3) Each ship station using teleg- (c) Where a ship ordinarily has no re- raphy and operating in the bands be- quirement for VHF communications, tween 4000–27500 kHz must be capable handheld VHF equipment may be used of transmitting and receiving Class solely to comply with the bridge-to- A1A or J2A emission on at least one bridge navigational communication re- frequency authorized for calling and at quirements contained in subpart U of least two frequencies authorized for this part. working in each of the bands for which [51 FR 31213, Sept. 2, 1986, as amended at 52 facilities are provided to carry on its FR 35244, Sept. 18, 1987; 68 FR 46961, Aug. 7, service. 2003] (4) Each ship station using teleg- raphy in Region 2 on frequencies with- § 80.145 [Reserved] in the band 2065–2107 kHz must be capable of transmitting and receiving Class SHIPBOARD GENERAL PURPOSE WATCHES A1A or J2A emission on at least one frequency in this band authorized for § 80.146 [Reserved] working in addition to a frequency in § 80.147 Watch on 2182 kHz. this hand authorized for calling. Ship stations must maintain a watch [51 FR 31213, Sept. 2, 1986, as amended at 54 on 2182 kHz as prescribed by § 80.304. FR 49993, Dec. 4, 1989; 68 FR 46961, Aug. 7, 2003; 69 FR 64672, Nov. 8, 2004] [68 FR 46962, Aug. 7, 2003]

§ 80.143 Required frequencies for § 80.148 Watch on 156.8 MHz (Channel radiotelephony. 16). (a) Except for compulsory vessels, Each compulsory vessel, while under- each ship radiotelephone station li- way, must maintain a watch for radio- censed to operate in the band 1605–3500 telephone distress calls on 156.800 MHz kHz must be able to receive and trans- whenever such station is not being mit J3E emission on the frequency 2182 used for exchanging communications. kHz. Ship stations are additionally au- For GMDSS ships, 156.525 MHz is the thorized to receive and transmit H3E calling frequency for distress, safety, emission for communications with for- and general communications using dig- eign coast stations and with vessels of ital selective calling and the watch on foreign registry. If the station is used 156.800 MHz is provided so that ships for other than safety communications, not fitted with DSC will be able to call it must be capable also of receiving and GMDSS ships, thus providing a link be- transmitting the J3E emission on at tween GMDSS and non-GMDSS compli- least two other frequencies in that ant ships. The watch on 156.800 MHz is band. However, ship stations which op- not required: erate exclusively on the Mississippi (a) Where a ship station is operating River and its connecting waterways, only with handheld bridge-to-bridge and on high frequency bands above 3500 VHF radio equipment under § 80.143(c) kHz, need be equipped with 2182 kHz of this part; and one other frequency within the (b) For vessels subject to the Bridge- band 1605–3500 kHz. to-Bridge Act and participating in a (b) Except as provided in paragraph Vessel Traffic Service (VTS) system (c) of this section, at least one VHF ra- when the watch is maintained on both diotelephone transmitter/receiver must the bridge-to-bridge frequency and a be able to transmit and receive on the separately assigned VTS frequency; or following frequencies: [51 FR 31213, Sept. 2, 1986, as amended at 58 (1) The distress, safety and calling FR 16504, Mar. 29, 1993; 68 FR 46962, Aug. 7, frequency 156.800 MHz; 2003; 73 FR 4480, Jan. 25, 2008]

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