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20 VHF 300 Series Owner’s Manual
Digital Selective Calling
4. Select ACCEPT when you have entered your MMSI number.
5. Select CALL. The radio transmits the call on Channel 70, and then switches to your
current working channel. The screen displays “POS REQUEST WAITING FOR
ACKNOWLEDGE”.
Receiving Calls
Receiving Distress Calls and Distress Relay Calls
The radio sends data relative to the call over the NMEA network based on how you have
MMSI ltering congured. See page 30 for more information.
1. When receiving a distress call or a distress relay call, the screen displays the
“DISTRESS” or “DISTR RELAY” and information about the call (for example, the MMSI
number and the nature of the distress). Select ] to view additional information.
2. If necessary, select OK to tune to Channel 16. See page 27 for more information on
conguring the auto channel-change setting. If you select CANCEL, the radio does not
change channels and continues to receive on the current channel.
3. Select OK to return to the Home screen on the new channel.
Receiving All-Ships Urgency Calls
1. When receiving an all-ships urgency call, “ALL SHIPS” is displayed on the screen.
“URGENCY” is shown as the type of call.
2. If necessary, select OK to switch to Channel 16. See page 27 for more information on
conguring the auto channel change setting. If you select CANCEL, the radio does not
change channels and continues to receive on the current channel.
3. Select OK to return to the Home screen on the new channel.
Receiving All-Ships Safety Calls
1. When receiving an all-ships safety call, “ALL SHIPS” is displayed on the screen.
“SAFETY” is shown as the type of call. Select OK to change the channel. If you select
CANCEL, the radio does not change channels and continues to receive on the current
channel.
2. Select OK to return to the Home screen on the new channel.
Receiving Individual Routine Calls
1. When receiving an individual routine call, “INDIVIDUAL” is displayed on the screen.
“ROUTINE” is shown as the type of call. If the channel request is for an invalid channel,
“INVALID CH REQUEST” is displayed on the screen.
2. If the channel request is for a valid channel, select OK to change channels. If you select
CANCEL, the radio does not change channels and continues to receive on the current
channel.