Digital Selective Calling; General - Standard Horizon MATRIX GX3000S Owner's Manual

11 DIGITAL SELECTIVE CALLING

11.1 GENERAL

This radio is designed to generate a digital maritime distress and safety
call to facilitate search and rescue. To be effective as a safety device,
this equipment must be used only within communication range of a shore-
based VHF marine channel 70 distress and safety watch system. The
range of signal may vary but under normal conditions should be ap-
proximately 20 nautical miles.
A DSC Warning sticker is included
with the GX3000S. To comply with
FCC regulations this sticker must be
mounted in a location that can be eas-
ily viewed from the location of the
GX3000S. Make sure the chosen lo-
cation is clean and dry before apply-
ing the sticker.
Digital Selective Calling is a semi-automated method of establishing a radio
call, it has been designated by the International Maritime Organization (IMO)
as an international standard for establishing VHF, MF, and HF radio calls. It
has also been designated as part of the Global Maritime Distress and Safety
System (GMDSS). It is planned that DSC will eventually replace aural watches
on distress frequencies and will be used to announce routine and urgent mari-
time safety information broadcasts.
This system allows mariners to instantly send a distress call with GPS position
(when connected to the transceiver) to the Coast Guard and other vessels within
range of the transmission. DSC will also allow mariners to initiate or receive Dis-
tress, Urgency, Safety, Routine, POSITION REQUEST, POSITION SEND, and
Group calls to or from another vessel equipped with a DSC transceiver.
GX3000S
WARNING
NOTE
WARNING
STICKER
DIST RESS
P UL L OP E N
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