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Model RG1 Owner’s Manual
Page 15 www.midlandradio.com
Digital Selective Calling is a process of establishing a radio call, it has been chosen by
the International Maritime Organization (IMO) as an international standard for establish-
ing VHF, MF and HF radio calls. Digital Selective Calling has also been selected as part of
the Global Maritime Distress and Safety System (GMDSS).
This service will let you instantly send a Distress call with GPS position (when optional
GPS receiver is connected to the REGATTA 1) to the US Coast Guard and other vessels
within range of the transmission. DSC will also let you initiate or receive distress,
urgency, safety, position information and routine calls to or from another vessel outfitted
with a DSC transceiver.
Press the DSC Button to enter DSC Call Mode. DSC has 2 options as follows:
1. INDIVIDUAL
- Press the DSC button once. IN will be displayed on the LCD.
- Press Select to choose INDIVIDUAL MODE.
- You will then need to enter the MMSI number for the individual you would like
to call. Use the CH UP/DOWN arrows to choose the 1st digit. Press select to
move to the next digit. It will be blinking. Repeat this procedure until all 9 digits
have been programmed. When finished press SELECT and the unit will scan one
by one through the digits entered. Press SELECT again and it sends the DSC call
to the MMSI number entered.
Note:
Only 2 digits at a time can display on the LCD while programming the
MMSI into the radio.
2. ALL SHIPS
This radio has the ability to send 3 types of all ships calls. The following are examples of
what these types of calls would be used for:
Urgency - This call is for a vessel not yet in Distress, but may have a serious
problem.
Safety - This call is used for a reason like debris in the water.
Routine - This call is used for normal calls.
How to Use
- Press the DSC button once. Use the CH UP/DOWN buttons to toggle to ALL
SHIPS MODE. AL will be displayed on the LCD.
- Press SELECT to choose ALL SHIPS MODE. The radio will then have you choose
which type of ALL SHIPS message you would like to send: URGENCY (UR),
SAFETY (SA), or ROUTINE(RO).
Note:
ROUTINE calls tune to the previously selected channel.
- Use the CH UP/DOWN buttons to toggle to URGENCY or SAFETY. When chosen,
press SELECT to transmit the ALL SHIPS DSC call.
When sending either an URGENCY or SAFETY message, all radios will automatical-
ly move to channel 70 until all of the data is received. After your selected
URGENCY or SAFETY ALL SHIPS call is transmitted, the radio will switch to
Channel 16. You should wait a few minutes before transmitting the ALL SHIPS call
information again.
DIGITAL SELECTIVE CALLING
DIGITAL SELECTIVE CALLING