Goto Section: 80.357 | 80.361 | Table of Contents
FCC 80.359
Revised as of October 1, 2008
Goto Year:2007 |
2009
Sec. 80.359 Frequencies for digital selective calling (DSC).
(a) General purpose calling. The following table describes the calling
frequencies for use by authorized ship and coast stations for general
purpose DSC. There are three series of paried frequencies. One series is for
worldwide use; the other two series are for regional use. The “Series A”
designation includes coast stations along, and ship stations in, the
Atlantic Ocean, the Gulf of Mexico, and the Caribbean Sea. The “Series B”
designation includes stations in any remaining areas. Stations must initiate
contact on the appropriate regional frequency depending upon the location of
the called station and propagation conditions. Acknowledgement is made on
the paired frequency. The worldwide frequencies may be used for
international calling, if calls on the appropriate regional frequencies are
unsuccessful, or the regional series does not contain the appropriate band (
e.g., 2 MHz). During normal working hours, all public coast stations capable
of DSC operations must monitor the worldwide and regional frequencies
appropriate for its location. The specific frequencies to be monitored will
vary with propagation conditions.
General Purpose DSC
[In kHz unless otherwise noted]
Worldwide Series A Series B
Ship Coast Ship Coast Ship Coast
458.5 455.5
2189.5 ^12177.0
4208.0 4219.5 4208.5 4220.0 4209.0 4220.5
6312.5 6331.0 6313.0 6331.5 6313.5 6332.0
8415.0 8436.5 8415.5 8437.0 8416.0 8437.5
12577.5 12657.0 12578.0 12657.5 12578.5 12658.0
16805.0 16903.0 16805.5 16903.5 16806.0 16904.0
18898.5 19703.5 18899.0 19704.0 18899.5 19704.5
22374.5 22444.0 22375.0 22444.5 22375.5 22445.0
25208.5 26121.0 25209.0 26121.5 25209.5 26122.0
^2156.525 ^2156.525
^1The frequency 2177.0 kHzs is also available to ship stations for intership
calling and acknowledgement of such calls only.
^2MHz.
(b) Distress and safety calling. The frequencies 2187.5 kHz, 4207.5 kHz,
6312.0 kHz, 8414.5 kHz, 12577.0 kHz, 16804.5 kHz and 156.525 MHz may be used
for DSC by coast and ship stations on a simplex basis for distress and
safety purposes, and may also be used for routine ship-to-ship
communications provided that priority is accorded to distress and safety
communications. The provisions and procedures for distress and safety
calling are contained in ITU–R Recommendation M.541–9, “Operational
Procedures for the Use of Digital Selective-Calling Equipment in the
Maritime Mobile Service,” with Annexes 1 through 5, 2004, and Sec. 80.103(c).
ITU–R Recommendation M.541–9 with Annexes is incorporated by reference. The
Director of the Federal Register approves this incorporation by reference in
accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies of this standard
can be inspected at the Federal Communications Commission, 445 12th Street,
SW., Washington, DC (Reference Information Center) or at the National
Archives and Records Administration (NARA). For information on the
availability of this material at NARA, call 202–741–6030, or go to:
http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_loc
ations.html . The ITU–R Recommendation can be purchased from the
International Telecommunication Union (ITU), Place des Nations, CH–1211
Geneva 20, Switzerland.
(c) Working frequencies. Coast and ship stations may use DSC techniques for
general calling purposes on their assigned working frequencies in the
2000–27500 kHz band and on those frequencies in the 156–162 MHz band which
are allocated for maritime control, commercial, non-commercial and public
correspondence communications.
[ 51 FR 31213 , Sept. 2, 1986, as amended at 54 FR 49995 , Dec. 4, 1989; 56 FR 9890 , Mar. 8, 1991; 56 FR 14150 , Apr. 5, 1991; 68 FR 46969 , Aug. 7, 2003; 73 FR 4485 , Jan. 25, 2008]
Goto Section: 80.357 | 80.361
Goto Year: 2007 |
2009
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