Icom IC-M804 Instruction Manual - Page 43
Receiving DSC calls (Distress), Receiving a Distress call
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DSC OPERATION 6 ■ Receiving DSC calls (Distress) The transceiver receives Distress calls, Distress Acknowledgments, Distress Cancel calls, Distress Relay calls, and Distress Relay Acknowledgments. When you receive a call, an Emergency Alarm sounds. NOTE: continuously blinks while the transceiver has a DSC call or an unread DSC message in the Received Call Log. (p. 46) D Receiving a Distress call IMPORTANT! Distress call reception should stop after one 6 sequence because the coast station should send back an Acknowledgment to the vessel. If the Distress call continues, even after the coast station sends back an Acknowledgment, the vessel in distress may not have received it. When a Distress call is received: • The emergency alarm sounds until you turn it OFF. • "Received Distress" is displayed. 1. Push Alarm Off to turn OFF the alarm. 2. Push the Software Key below the intended operation. When "Accept after 10 sec." or "Ignore after 10 sec." is selected in the CH Auto Switch setting, the countdown is displayed on the bottom of the window. (p. 50) After 10 seconds have passed since Alarm Off was pushed, the screen will move to the DSC Task screen or return to the Main screen. Ignore Hold Pause Accept : Ignores the call and returns to the Main screen. : Puts the RX task on hold and returns to the Main screen. : Pauses the countdown. : Enters the DSC Task mode immediately. Rotate • One of the Emergency Frequencies is automatically selected. Monitor it because a coast station may require assistance. • Rotate [CH/GRP] to confirm the call contents. See page 23 for details of the Software Key functions in the DSC Task mode. 3. Push Standby Mode , and then OK to return to the Main screen. TIP: When Pause is pushed in step 2, the countdown will be paused. Push Resume to resume the countdown. 38