FCC ID: K6630283X3S
IC ID: 511B-30283X3S
GX5000S / GX5500S Operating Manual
intercom mode.
10.16 VOICE SCRAMBLER
If privacy of communications is desired, a CVS2500 voice scrambler (VS) can be installed
in the transceiver. Contact your Dealer to have a CVS2500 installed. Refer to the section
10.11 VOICE SCRAMBLER to program the voice scrambler.
1. Turn on the transceiver.
2. Select a channel that was programmed for scrambler mode (“VS” will appear on the
LCD).
Ÿ If a channel is not set for the voice scrambler, the display will be as shown in the
illustration at the right (“VS” will disappear from the LCD).
Ÿ If a voice scrambler is cancelled temporarily in the “SETUP” menu, the display will be
as shown in the illustration at the right.
3. Monitor the channel before transmitting.
4. Transmit the voice message. The signal sent will be scrambled.
11
DIGITAL SELECTIVE CALLING
11.1 GENERAL
WARNING
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
approximately 20 nautical miles.
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 maritime 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 Distress, Urgency, Safety,
Routine, POSITION REQUEST, POSITION SEND, and Group calls to or from another
vessel equipped with a DSC transceiver.
Vertex Standard Co., Ltd.
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