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IC-M501
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14 Operation with DSC terminal connected
When DSC terminal is connected the radio, DSC terminal will commands
channel selection for DSC operation
Transmitting Distress Call
1. When operator repressed DISTRESS button on DS-100, the Radio will beep once, and
will switch the channel to CH70
Continue holding DISTRESS button will beep once a second for 5 seconds. Then DSC
terminal will send distress signals to radio for distress transmission
At that time the radio emits beep sound with full volume
2. After transmission of distress call, the radio will switch to CH16 for
voice communication
3.
If the DSC terminal does not receive acknowledgment within 3.5 – 4.5 minutes, the
radio will switch the channel to CH 70 at 5 seconds before repeating distress call
transmission.
After transmission of repeating distress call, the radio will switch back to CH16
Transmitting All ship call
1. When transmitting ALL SHIP CALL, the DSC terminal (DS-100) commands radio
to switch the channel to CH70. Then supplying All Ship Call signals to radio
for transmission
2. After transmission of All Ship Call, the radio will switch the channel
to CH16 for voice communication (Gateway channel can be set by DS-100 if you
desired)
70
70
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