User manual ICOM IC-M21

[. . . ] "LOCATED AT - - - - - - - - - - " (your position) 5. The nature of the distress and assistance required. Any other information which might facilitate the rescue. USING DIGITAL SELECTIVE CALLING (ch 70) (UX-120 required) DISTRESS CALL PROCEDURE 1. Push and hold [16·EMER] for 5 sec. [. . . ] channels 13, 15 and 67, transmission using high power is momentarily possible. To use high power, push and hold [HI/LO] while transmitting. TIME-OUT TIMER (U. S. A. version only) The transceiver has a time-out timer function to prevent continuous, long transmissions. Transmit is automatically inhibited after 5 min. 9 3 BASIC OPERATION D Scan operation Select the desired channel group (USA, CAN, INT) or WX channels with [CH/WX·U/I/C]. · When the weather alert function is in use, select the desired WX channel in the display, then perform the above operation. I Scan function The transceiver has a high speed scan function for standing by on utility signals. (except when the weather alert function is in use). Two scan types are available: normal scan (scans all tag channels in sequence) and priority scan (checks channel 16 while scanning). These scans can be selected in set mode (p. 19). Push [SCAN] to start scanning. · "SCAN" appears and flashes in the function display. · "16" appears during priority scan. To stop the scan, push [SCAN] again. · "SCAN" disappears. D Setting tag channels You can specify channels as tag channels for efficient scanning. Tag channels can be set for each channel group (USA, CAN, INT) independently. Two kinds of acknowledgements (able to comply/unable to comply) 15, 17 are available (for sending or receiving) after an individual call. This is used for announcement to all ships in the specified area--when a GPS receiver is p. 17 connected calls directed to areas other than yours are rejected. Receive only for the IC-M21. Individual call Geographical area call 12 DIGITAL SELECTIVE CALLING 4 I Distress call transmission CAUTION: Distress calls may be transmitted under conditions of emergency only i. e. your vessel is in danger of sinking and/or a person's life is in danger. When a distress acknowledgement is received, emergency alarm sounds and channel 16 is automatically selected. · Push any key to cancel the alarm. LOW BUSY ACK RCV INT Push and hold [16·EMER] until you hear 4 short beeps change to one long beep. · The display changes as at right. LOW INT ACK RCV INT Push [PTT] to transmit the distress call. LOW INT Transmit your distress call particulars by voice using the following procedure: 1. The 9-digit identity AND the call sign (or other identification of the vessel). The vessel's position if DSC does not include it. The nature of the distress and assistance required. Any other information which might facilitate the rescue. NOTE: When a GPS receiver (NMEA 0183) is connected, your vessel's position is automatically transmitted with the distress call. NOTE: Acknowledgement of a DSC distress alert is normally made by coast stations only. [. . . ] SOLUTION · Check the power cord connection. · Check the polarity of the power connection, then, replace the fuse. · Rotate [SQUELCH] counterclockwise to a suitable position. · Rotate [SQUELCH] counterclockwise to a suitable position. [. . . ]