Icom IM422 - Manual

iv FOREWORD ……………………………… iIMPORTANT ……………………………… iEXPLICIT DEFINITIONS ………………… iIN CASE OF EMERGENCY …………… iiNOTE ……………………………………… iiRADIO OPERATOR WARNING………… iiiTABLE OF CONTENTS ………………… ivPRECAUTIONS ………………………… v 1 OPERATING RULES ………………… 1 2 PANEL DESCRIPTION …………… 2–4 ■ Front panel ………………………… 2 ...

v PRECAUTIONS R WARNING! NEVER connect the transceiver to an AC outlet. This may pose a fire hazard or result in an electricshock. CAUTION: Changes or modifications to this device, not ex- pressly approved by Icom Inc., could void your authority tooperate this device under FCC regulations. NEVER con...

1 1 OPERATING RULES D D PRIORITIES • Read all rules and regulations pertaining to priorities and keep an up-to-date copy handy. Safety and Distress callstake priority over all others. • You must monitor Channel 16 when you are not operating on another channel. • False or fraudulent distress signals ...

2 PANEL DESCRIPTION 2 ■ Front panel q CHANNEL 16/CALL CHANNEL KEY [16• 9 ] ➥ Push to select Channel 16. (p. 5) ➥ Push for 1 sec. to select Call channel. (p. 5) • “ CALL ” appears when Call channel is selected. ➥ Push for 3 sec. to enter Call channel programming con-dition when Call channel is select...

3 2 PANEL DESCRIPTION i PUBLIC ADDRESS/RX SPEAKER KEY [PA• RX ] ➥ Push to turn the Public Address mode ON or OFF. (p. 31) ➥ Push for 1 sec. to turn the RX Speaker mode ON orOFF. (p. 31) o SCAN KEY [SCAN• TAG ] (p. 11) ➥ Push to start and stop Normal or Priority scan. ➥ Push for 1 sec. to set or clea...

4 2 PANEL DESCRIPTION ■ Function display q CHANNEL COMMENT INDICATOR ➥ Channel comment appears and scrolls if programmed.(p. 9) ➥ “ ” or “ ” blinks during Dualwatch or Tri-watch, re- spectively. (p. 12) ➥ “ ” or “ ” appears during Priority or Normal scan, respectively. (p. 11) ➥ In Set mode, indicat...

5 3 BASIC OPERATION 2 3 ■ Channel selection ï ï Channel 16 Channel 16 is the distress and safety channel. It is used forestablishing initial contact with another station and for emer-gency communications. Channel 16 is monitored during bothDualwatch and Tri-watch. While standing by, you must moni-to...

6 3 BASIC OPERATION ï ï U.S.A., international and Canadian channels The IC-M422 is pre-programmed with 57 U.S.A., 57 interna-tional and 61 Canadian channels. These channel groups maybe specified for the operating area. q Push [CH/WX• DUAL ] to select a regular channel. • If a weather channel appears...

7 3 BASIC OPERATION 3 ■ Receiving and transmitting CAUTION: Transmitting without an antenna may dam- age the transceiver. q Push [VOL] for 2 sec. to turn power ON. w Set the audio and squelch levels. ➥ Rotate [SQL] fully counterclockwise in advance. ➥ Rotate [VOL] to adjust the audio output level. ➥...

8 3 BASIC OPERATION ■ Call channel programming Call channel is used to select Channel 9 (default), however,you can program the call channel with your most often-usedchannels in each channel group for quick recall. q Push both [ Y ] and [ Z ] on the transceiver one or moretimes to select the desiredc...

9 3 BASIC OPERATION 3 ■ Channel comments Memory channels can be labeled with alphanumeric com-ments of up to 10 characters each for easy channel recogni-tion. Comments more than 7 characters long automatically scrollat the channel comment indicator after the channel selection. Capital letters, small...

10 SCAN OPERATION 4 ■ Scan types Scanning is an efficient way to locate signals quickly over awide frequency range. The transceiver has Priority scan andNormal scan. When the Weather Alert function is turned ON, the previouslyselected (last used) weather channel is also checked whilescanning. (p. 33...

11 4 SCAN OPERATION 4 ■ Setting TAG channels For more efficient scanning, add the desired channels as TAGchannels or clear the TAG for unwanted channels. Channels that are not tagged will be skipped during scanning.TAG channels can be assigned to each channel group (USA,INT, CAN) independently. q Pu...

12 DUALWATCH/TRI-WATCH 5 ■ Description Dualwatch monitors Channel 16 while you are receiving another channel; Tri-watch monitors Channel 16 and the callchannel while receiving another channel. Dualwatch/Tri-watchis convenient for monitoring Channel 16 when you are oper-ating on another channel. ■ Op...

13 6 DSC OPERATION 5 6 ■ MMSI code programming The 9-digit MMSI (Maritime Mobile Service Identity: DSC selfID) code can be programmed at power ON. This function is not available when the MMSI code hasbeen programmed by the dealer. This code programmingcan be performed only twice. q Turn power OFF. w...

14 6 DSC OPERATION ■ DSC Address ID A total of 100 DSC address IDs (9-digit) can be programmedand named with up to 7 characters. D Programming Address ID q Push [DSC• POS ] to enter the DSC menu. w Push [ Y ] or [ Z ] to select “ ,” push [DSC• POS ] . e Push [ Y ] or [ Z ] to select “ ,” push [DSC• ...

15 6 DSC OPERATION 6 D Deleting Address ID q Push [DSC• POS ] to enter the DSC menu. w Push [ Y ] or [ Z ] to select “ ,” and push [DSC• POS ] . e Push [ Y ] or [ Z ] to select “ ,” push [DSC• POS ] . • When no address ID is programmed, “ ” is displayed. r Push [ Y ] or [ Z ] to select the desired I...

16 6 DSC OPERATION ■ Distress call A Distress call should be transmitted, if in the opinion of theMaster, the ship or a person is in distress and requires imme-diate assistance. NEVER USE THE DISTRESS CALL WHEN YOUR SHIP OR A PERSON IS NOT IN AN EMERGENCY.A DISTRESS CALL CAN BE USED ONLY WHENIMMEDIA...

17 6 DSC OPERATION 6 ■ Transmitting DSC calls To ensure correct operation of the DSC function, pleasemake sure you set the squelch correctly. (P. 7) D Transmitting an Individual call The Individual call function allows you to transmit a DSC sig-nal to a specific ship only. q Push [DSC• POS ] to ente...

18 6 DSC OPERATION y Stands by on Channel 70 until an acknowledgement is re-ceived. • “ ” scrolls at the channel comment indicator. u When the acknowledgement ‘Able to comply’ is received,the specified channel (in step r ) is selected with beeps automatically. Or, when the acknowledgement ‘Unable to...

D Transmitting a Group call The Group call function allows you to transmit a DSC signalto a specific group only. q Push [DSC• POS ] to enter the DSC menu. w Push [ Y ] or [ Z ] to select “ ,” push [DSC• POS ] . e Push [ Y ] or [ Z ] to select the desired pre-programmed Group address, push [DSC• POS ...

21 6 DSC OPERATION 6 D Transmitting an All Ships call Large ships use Channel 70 as their ‘listening channel.’When you want to announce a message to these ships, usethe ‘All Ships call’ function. q Push [DSC• POS ] to enter the DSC menu. w Push [ Y ] or [ Z ] to select “ .” e Push [DSC• POS ] to ent...

22 6 DSC OPERATION D Transmitting a Position Request call Transmit a Position Request call when you want to know aspecified ship’s current position, etc. q Push [DSC• POS ] to enter the DSC menu. w Push [ Y ] or [ Z ] to select “ ,” push [DSC• POS ] . e Push [ Y ] or [ Z ] to select the desired pre-...

23 6 DSC OPERATION 6 D Transmitting a Position Report call Transmit a Position Report call when you want to announceyour own position to a specific ship and to get an answer, etc. q Push [DSC• POS ] to enter the DSC menu. w Push [ Y ] or [ Z ] to select “ ,” push [DSC• POS ] . e Push [ Y ] or [ Z ] ...

24 6 DSC OPERATION D Transmitting a Polling Request call Transmit a Polling Request call when you want to know aspecific ship is in the communication area, etc. q Push [DSC• POS ] to enter the DSC menu. w Push [ Y ] or [ Z ] to select “ ,” push [DSC• POS ] . e Push [ Y ] or [ Z ] to select the desir...

25 6 DSC OPERATION 6 D Transmitting a Position Request Reply call Transmit a Position Request Reply call when a Position Re-quest call is received. q When a Position Request call is received, “ DSC ” appears and “ ” scrolls at the channel comment in- dicator. w Push [DSC• POS ] to reply to the Posit...

26 6 DSC OPERATION ■ Receiving DSC calls D Receiving a Distress call While monitoring Channel 70 and a Distress call is received: ➥ The emergency alarm sounds for 2 minutes. • Push any key to stop the alarm. ➥ “ DSC ” appears and “ ” scrolls at the channel comment indicator, then Channel 16 is selec...

27 6 DSC OPERATION 6 D Receiving a Group call While monitoring Channel 70 and a Group call is received: ➥ The emergency alarm or beeps sound for 2 minutes de-pending on the received category. • Push any key to stop the alarm or beeps. ➥ “ DSC ” appears and “ ” scrolls at the channel comment indicato...

28 6 DSC OPERATION D Receiving a Position Request call While monitoring Channel 70 and a Position Request call isreceived: ➥ “ DSC ” appears and “ ” scrolls at the chan- nel comment indicator. ➥ The beeps sound for 2 minutes. • Push any key to stop the beeps. ➥ Push [DSC• POS ] to reply to the call;...

29 6 DSC OPERATION 6 D Receiving a Position Report Reply call While monitoring Channel 70 and a Position Report Reply callis received: ➥ “ DSC ” and “ POS REPLY ” appear in the display. • The ‘Latitude’ and ‘Longitude’ you have sent is displayed and scrolled at the channel comment indicator in order...

30 OTHER FUNCTIONS 7 ■ Intercom operation The optional Intercom function allows you to talk to the deckfrom the cabin. The optional HM-157 COMMANDMIC II ™ is required for Intercom operation. Connect an optional HM-157 as described on pgs. 35, 52.• Transmitting is impossible during Intercom operation...

31 7 OTHER FUNCTIONS 7 ■ Public Address (PA) function The IC-M422 has a Public Address function for voice amplifi-cation, making an announcement on-board via a PA speaker. Connect a PA speaker as described on p. 35. • Transmitting is not possible during Public Address mode. q Push [PA• RX ] to enter...

32 SET MODE 8 ■ Set mode programming Set mode is used to change the conditions of the trans-ceiver’s functions: Scan type, Scan resume timer, Weatheralert, Dual/Tri-watch, DSC watch, Beep tone, LCD backlight,LCD contrast, Auto acknowledgement and Radio power.* Available functions may differ dependin...

33 8 SET MODE 8 D D Weather alert A NOAA broadcast station transmits a weather alert tone be-fore important weather information. When the Weather Alertfunction is turned ON, the transceiver detects the alert, thenthe “ WX ALT ” indicator blinks until the transceiver is operated. The previously selec...

34 8 SET MODE D D LCD backlight The LCD backlight brightness can be adjusted from OFF, 1(dark) to 7 (bright.)LCD backlight is also adjustable via [SCAN •TAG ] key. (p. 9) • “ ” scrolls at the channel comment indicator. D D LCD contrast The LCD contrast can be adjustable in 4 levels. 1 is the low-est...

35 9 CONNECTIONS AND MAINTENANCE 8 9 ■ Connections q DC POWER CONNECTOR Connects the supplied DC power cable from this connectorto an external 12 V battery. w EXTERNAL SPEAKER LEAD (Yellow) Connects to an external speaker. e PUBLIC ADDRESS LEAD (Blue) Connects to a PA speaker. • PA output power: 4.5...

36 9 CONNECTIONS AND MAINTENANCE ■ Supplied accessories ■ Antenna A key element in the performance of any communication sys-tem is the antenna. Ask your dealer about antennas and thebest place to mount them. ■ Fuse replacement One fuse is installed in the supplied DC power cable. If a fuseblows or t...

37 9 CONNECTIONS AND MAINTENANCE 9 ■ Optional MB-69 installation An optional MB-69 FLUSH MOUNT is available for mounting the transceiver to a flat surface such as an instrument panel. CAUTION: KEEP the transceiver and microphone at least 1 meter away from your vessel’s magnetic navigation com-pass. ...

38 TROUBLESHOOTING 10 PROBLEM POSSIBLE CAUSE SOLUTION REF. No sound from speaker. • Squelch level is too high. • Volume level is too low.• Speaker has been exposed to water. p. 7p. 7 — • Set [SQL] to the threshold point. • Set [VOL] to a suitable level. • Drain water from the speaker. The transceive...

39 11 SPECIFICATIONS AND OPTIONS ■ Specifications D D General • Frequency coverage : Tx 156.025–157.425 MHz Rx 156.050–163.275 MHz • Mode : FM (16K0G3E), DSC (16K0G2B) • Channel spacing : 25 kHz • Current drain (at 13.8 V) : TX high 5.5 A max. Max. audio 1.5 A max. • Power supply requirement : 13.8 ...

40 COMMANDMIC II ™ HM-157 12 ■ Panel description The optional HM-157 remotely controls the IC-M422 and pro-vides an optional Intercom function. D D Front and side keys q VOLUME/DIMMER/PA/RX SPEAKER KEY[VOL• PA/RX ] ➥ Push [ Y Y ] or [ Z Z ] to adjust the audio level after pushing [VOL• PA/RX ] (p. 4...

41 12 COMMANDMIC II™ HM-157 12 e ATTENUATOR/INTERCOM/SCRAMBLER KEY [LO/DX• SCR ] ➥ Push to toggle the Attenuator function ON or OFF. (p. 45) • “ LOCAL ” appears when the Attenuator function is turned ON. ➥ Push for 1 sec. to activate the Intercom function. (p. 50) ➥ Calls the IC-M422 when pushed and...

42 12 COMMANDMIC II™ HM-157 D D Top keys q POWER KEY [PWR] (p. 45) Push for 2 sec. to turn the HM-157 power ON or OFFwhen the IC-M422 power is turned ON. w SCAN KEY [SCAN• ] (p. 48) ➥ Push to start and stop Normal or Priority scan whenTAG channels are programmed. ➥ Push for 1 sec. to set the display...

46 12 COMMANDMIC II™ HM-157 ■ Call channel programming q While pushing [H/L] , push [CH/WX• U/I/C ] several times to select the desired channelgroup (USA, INT, CAN) to be pro-grammed. w Push [16• 9 ] for 1 sec. to select call channel of the selected channelgroup. • “ CALL ” and call channel number a...

47 12 COMMANDMIC II™ HM-157 12 ■ Display backlight The function display and keys can be backlit for better visibil-ity under low light conditions. The backlighting condition canalso be adjusted independently from the transceiver. q Push [VOL• PA/RX ] for 1 sec. to enter the backlightadjusting mode. ...

49 12 COMMANDMIC II™ HM-157 12 ■ Set mode programming Set mode is used to change the condition of the transceiver’sfunctions and the microphone’s own functions: Transceiver’s functions— Scan type, Scan resume timer, Weather alert, Dual/Tri-watch,Beep tone* 1 , LCD backlight* 1 , LCD contrast* 1 and ...

50 12 COMMANDMIC II™ HM-157 ■ Intercom operation q Push [LO/DX• SCR ] for 1 sec. to activate the Intercom function. w Push and hold [PTT] to talk. • “ ” appears at the channel comment indicator. e Release [PTT] to listen. • “ ” appears at the channel comment indicator when the trans-ceiver is in tal...

51 12 COMMANDMIC II™ HM-157 12 ■ Channel comments q Push [ Y Y ] or [ Z Z ] to select a channel to program a channel comment. • While pushing [H/L] , push [CH/WX• U/I/C ] several times to select the channel group (USA, INT, CAN), if desired. w While pushing [CH/WX• U/I/C ] , push [16• 9 ] . • A curs...

52 12 COMMANDMIC II™ HM-157 ■ Installation The optional HM-157 can be connected to the transceiver di-rectly, as well as via the supplied connection cable for longerdistance remote operation. The connector of the connectioncable can be installed into a cabinet, wall, etc., as a built-inplug. For lon...

54 CHANNEL LIST 13 Channel number USA CAN Transmit Receive 01 156.050 160.650 01A 156.050 156.050 02 156.100 160.700 03 156.150 160.750 03A 156.150 156.150 156.200 160.800 04A 156.200 156.200 156.250 160.850 05A 05A 156.250 156.250 06 06 156.300 156.300 156.350 160.950 07A 07A 156.350 156.350 08 08 ...

55 14 TEMPLATE 13 14 Unit: mm (inch) 164 (6 15 ⁄ 32 ) 78 (3 1 ⁄ 16 ) 149 (5 7 ⁄ 8 ) 61.6 (2 7 ⁄ 16 ) R8 (Max.) HM-157 MB-69 24 to 27 (d) ( 15 ⁄ 16 to 1 1 ⁄ 16 ) 2 ( 3 ⁄ 32 ) Cut here