User manual ICOM IC-M503

[. . . ] INSTRUCTION MANUAL VHF MARINE TRANSCEIVER iM503 IN CASE OF EMERGENCY If your vessel requires assistance, contact other vessels and the Coast Guard by sending a distress call on Channel 16. Or, transmit your distress call using digital selective calling on Channel 70 (the optional DS-100 (#02) must be installed). USING CHANNEL 16 DISTRESS CALL PROCEDURE 1. "THIS IS . . . . . . . . . . . . . . . " (name of vessel) 3. Your call sign or other indication of the vessel (AND 9-digit DSC ID if you have one). [. . . ] Set mode Scan mode Priority scan (default) Normal scan ï Dual/tri watch This item sets the [DUAL] switch function as dual watch or triwatch. See the section `Dual watch/Tri-watch' for details. Set mode DUAL/TRI Dual watch (default) Tri-watch ï Scan resume timer The scan resume timer can be selected as a pause (OFF) or timer scan (ON). When OFF is selected, the scan pauses until the signal disappears. When ON is selected, the scan pauses 5 sec. and resumes even if a signal is being received on channels, except for Channel 16. Set mode Scan timer Scan timer ON (default) Scan timer OFF ï Beep tone You can select silent operation by turning beep tones OFF or you can have confirmation beeps sound at the push of a switch by turning beep* tones ON. Set mode Beep Beep tone ON (default) Beep tone OFF *Beep tones setting are selectable on IC-M503 and HM-134 independently 15 6 SET MODE ï Internal speaker When an optional external speaker is connected, the speakers on the transceiver and microphone can be muted. Set mode Internal speaker Internal speaker ON (default) Internal speaker OFF Set mode Scrambler code Scrambler code 0 (UT-98 default) Scrambler code 127 ï Scrambler type When an optional scrambler unit is connected, the scrambler unit can be selected in set mode depending on dealer setting. Set mode *Internal speaker setting is selectable on IC-M503 and HM-134 independently ï LCD contrast This item adjusts the contrast of the LCD in 8 steps. Set mode LCD contrast LCD contrast 4 (default) *LCD contrast setting is adjustable on IC-M503 and HM-134 independently Scrambler type UT-98 scrambler unit UT-112 scrambler unit ï ATIS check The ATIS ID code can be checked in set mode. Set mode ATIS check 0123456789 ATIS code ï Scrambler code When an optional scrambler unit is connected, the scrambler code can be set depending on dealer setting. When the UT-98 or UT-112 is installed, 128 or 32 codes (0 to 127 or 1 to 32) can be selected, respectively. 16 INTERCOM OPERATION I Intercom operation The optional intercom function allows you to talk to the deck from the cabin. The optional HM-134* REMOTE-CONTROL MICROPHONE is required for intercom operation. *DO NOT connect another remote-control microphone. 7 · To adjust the IC-M503's speaker output level, rotate [VOL]. · To adjust the HM-134's speaker output level, push [Y]/[Z] after pushing [VOL]. Connect an optional HM-134 as described on p. 39. · Transmitting is impossible during intercom operation. · The received signal is muted during intercom operation. INT INT Intercom TALK IC-M503 (caller) HM-134 (listener) q Push and holding [DIMMER] for 1 sec. to enter intercom mode. · The HM-134 power is automatically turned ON, even if the power is OFF. INT INT r After releasing the PTT switch you can hear the response through the speaker. t To return to normal operation, push [DIMMER] momentarily. · Other switches also turn the function OFF, however, the corresponding function is then activated e. g. pushing [16] selects Channel 16. Intercom IC-M503 HM-134 w Push and hold [DIMMER] again to call up. · The transceiver and microphone emit call beeps. e Push and hold the PTT switch and speak at a normal voice level into the microphone. · "TALK" or "LSTN" appears on the caller or listener function display, respectively. · While in the intercom mode, the transceiver functions (transmit and receive) are interrupted. If the transceiver is in transmit condition, the intercom function is not available. 17 8 CONNECTIONS AND MAINTENANCE I Antenna A key element in the performance of any communication system is an antenna. Ask your dealer about antennas and the best places to mount them. I Unpacking The following accessories are supplied: Qty. [. . . ] q Connection cable (OPC-1000: 6 m; 20 ft) . . . . . . . . . . . . . . . . . . . . . . 1 w Mounting base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 e Microphone hanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 r Screws (M3 × 16; tapping) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]