Goto Section: 80.367 | 80.371 | Table of Contents
Revised as of September 1, 2021
Goto Year:2020 |
§ 80.369 Distress, urgency, safety, call and reply frequencies.
This section describes the general uses and frequencies assignable to
maritime stations for distress, urgency, safety, call and reply
(a) In the 1605-3500 kHz band, the frequency 2182 is an international
radiotelephony distress, urgency and safety frequency for ship
stations, public and private coast stations, and survival craft
stations. It is also used for call and reply by ship stations on a
primary basis and by public coast stations on a secondary basis. The
carrier frequency 2191 kHz may be used as a supplementary calling
frequency in areas of heavy usage of 2182 kHz. All stations must use
J3E emission when operating on 2182 and 2191 kHz, except that:
(1) H3E emission may be used on 2182 kHz for communications with
foreign coast and ship stations; or,
(2) A3E emission may be used on 2182 kHz by portable survival craft
stations, or transmitters authorized for use prior to January 1, 1972.
See § 80.203(c).
(b) The frequencies 4125.0 kHz, 6215 kHz, 8291 kHz, 12290 kHz, and
16420 kHz may be used by coast and ship stations on a simplex basis for
distress and safety communications. The frequency 4125.0 kHz may also
be used for distress and safety communications between aircraft and
maritime mobile stations.
(c) The frequency 5167.5 kHz is available to any station for emergency
communications in the State of Alaska. Peak envelope power of stations
operating on this frequency must not exceed 150 watts. This frequency
may also be used by Alaska private fixed stations for calling and
listening, but only for establishing communication.
(d) In the 4000-27500 kHz band, the following coast frequencies are
available for assignment to public coast stations for call and reply
communications. The paired ship frequencies are available for use by
authorized ship stations.
Call and Reply Frequency Pairs in the 4000-27500 kHz
Carrier Frequencies (kHz)
Channel No. Ship transmit Coast transmit
421 ^1 2 34125 ^14417
606 ^2 36215 ^16516
821 8255 8779
1221 ^312290 13137
1621 ^316420 17302
1806 18795 19770
2221 22060 22756
2510 25097 26172
^1The frequencies 4125 kHz, 4417 kHz, and 6516 kHz are also available
on a simplex basis for private communications, see § 80.373(c) of this
^2The frequencies of 4125 kHz and 6215 kHz are also available on a
simplex basis to ship and coast stations for call and reply, provided
that the peak envelope power does not exceed 1 kW.
^3The frequencies 4125 kHz, 6215 kHz, 8291 kHz, 12290 kHz, and 16420
kHz are also available on a simplex basis for distress and safety
traffic, see paragraph (b) of this section.
(e) In the 120-156 MHz band the following frequencies are used as
(1) The frequencies 121.500 MHz and 123.100 MHz using A3E emission are
available for scene of action search and rescue operations to ship,
coast and aircraft stations. Communications in support of search and
rescue operations must employ the frequency 121.500 MHz only when
communications on 123.100 MHz or other VHF frequencies is not
practicable. Ship, coast and aircraft stations engaged in such
communications on 121.500 MHz must shift to 123.100 MHz as soon as
(2) The frequency 156.525 MHz is available for intership, ship and
coast general purpose, distress and safety DSC calls.
(3) The frequency 156.800 MHz is the international radiotelephone
distress, urgency, safety, call and reply frequency for ship, public
and private coast stations. Stations operating on 156.800 MHz must be
able to transmit and receive using G3E emission.
(4) The frequency 156.450 MHz (channel 9) is available for intership,
ship and coast station general purpose calling by noncommercial
vessels, such as recreational boats. Distress, urgency and safety calls
should initially be made on 156.800 MHz (channel 16) or, if equipped
with DSC, on 156.525 MHz (channel 70).
[ 51 FR 31213 , Sept. 2, 1986, as amended at 52 FR 35245 , Sept. 18, 1987;
54 FR 49995 , Dec. 4, 1989; 56 FR 9893 , Mar. 8, 1991; 57 FR 19552 , May
Goto Section: 80.367 | 80.371
Goto Year: 2020 |
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