Specifications

San Jose Technology, Inc. ｜11F., No.2, Sec. 4, Jhongyang Rd., Tucheng City, Taipei County 236, Taiwan
(R.O.C.) ｜Tel: [phone]｜Fax: [phone]｜[e-mail]
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www.sanav.com
5.14 DSC messages
This sentence is used to receive a call from or provide data to a radiotelephone using
digital selective calling in accordance with ITU-R M.493.
NOTE 1 Expansion indicator = “E”, null otherwise. When set to “E” this sentence is
followed by the DSC expansion
sentence $--DSE, without intervening sentences, as the next transmitted or received
sentence.
NOTE 2 Acknowledgement type:
R = Acknowledge request
B = Acknowledgement
S = Neither (end of sequence)
NOTE 3 For Distress Acknowledgement, Distress Relay and Distress Relay
Acknowledgement calls only, null
otherwise.
NOTE 4 Use two least-significant digits of symbol codes in ITU-R M.493.
NOTE 5 Maritime Mobile Service Identifier (MMSI) for the station to be called or the
MMSI of the calling station in
a received call. For a nine-digit MMSI “0” shall be added as the tenth digit. For calls to
a geographic area the area
is coded in accordance with ITU-R M.493.
System configuration (wiring) and the Talker ID are used to confirm if the sentence is
transmitted or received. The
MMSI of the calling station for transmitted calls is inserted automatically in the ITU-R
M.493 transmission at the
radiotelephone.
NOTE 6 Time (UTC) of position, four digits, hhmm (hours and minutes).
NOTE 7 Telephone number, 16 digits maximum, odd/even information to be inserted by
the DSC equipment.
NOTE 8 Latitude/longitude, degrees and minutes, 10 digits, coded in accordance with
ITU-R M.493
NOTE 9 Frequency or channel, six or twelve digits, coded in accordance with ITU-R
M.493.
NOTE 10 Distress calls only.
NOTE 11 Distress, Distress Acknowledgement, Distress Relay and Distress Relay
Acknowledgement calls only.