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INSTRUCTION MANUAL
VHF MARINE TRANSCEIVER
iM422
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FOREWORD IMPORTANT Thank you for purchasing this Icom product. The READ ALL INSTRUCTIONS carefully and completely IC-M422 VHF MARINE TRANSCEIVER is designed and built with before using the transceiver. Icom’s state of the art technology and craftsmanship. With proper care, this product should provide you with years of SAVE THIS INSTRUCTION MANUAL — This in- trouble-free operation. struction manual contains important operating instructions for the IC-M422. We want to take a couple of moments of y
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IN CASE OF EMERGENCY NOTE If your vessel requires assistance, contact other vessels and A WARNING STICKER is supplied with the transceiver. the Coast Guard by sending a Distress call on Channel 16. To comply with FCC regulations, this sticker must be affixed in such a location as to be readily seen from the operating con- USING CHANNEL 16 trols of the radio as in the diagram below. Make sure the cho- DISTRESS CALL PROCEDURE sen location is clean and dry before applying the sticker. 1. “MAYDAY MA
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RADIO OPERATOR WARNING Icom requires the radio operator to meet the FAILURE TO OBSERVE THESE LIMITS MAY ALLOW FCC Requirements for Radio Frequency Expo- THOSE WITHIN THE MPE RADIUS TO EXPERIENCE RF sure. An omnidirectional antenna with gain not RADIATION ABSORPTION WHICH EXCEEDS THE FCC greater than 9 dBi must be mounted a minimum MAXIMUM PERMISSIBLE EXPOSURE (MPE) LIMIT. WARNING of 5 meters (measured from the lowest point of IT IS THE RESPONSIBILITY OF THE RADIO OPERATOR the antenna) vertically
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TABLE OF CONTENTS FOREWORD ……………………………… i 6 DSC OPERATION ……………… 13–29 12 COMMANDMIC II™ HM-157 … 40–53 IMPORTANT ……………………………… i MMSI code programming ……… 13 Panel description ………………… 40 EXPLICIT DEFINITIONS ………………… i MMSI code check ………………… 13 Function display ………………… 42 IN CASE OF EMERGENCY …………… ii DSC Address ID ………………… 14 Channel selection ………………… 44 NOTE ……………………………………… ii Position indication………………… 15 Receiving and transmitting ……… 45 RADIO OPERATOR WARNING………… iii Distr
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PRECAUTIONS BE CAREFUL! The transceiver rear panel will become RWARNING! NEVER connect the transceiver to an AC hot when operating continuously for long periods. outlet. This may pose a fire hazard or result in an electric Place the transceiver in a secure place to avoid inadvertent shock. use by children. CAUTION: Changes or modifications to this device, not ex- pressly approved by Icom Inc., could void your authority to BE CAREFUL! The transceiver and the optional HM-157 operate this device und
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OPERATING RULES 1 (2) OPERATOR’S LICENSE D D PRIORITIES 1 A Restricted Radiotelephone Operator Permit is the license • Read all rules and regulations pertaining to priorities and most often held by small vessel radio operators when a radio keep an up-to-date copy handy. Safety and Distress calls is not required for safety purposes. take priority over all others. The Restricted Radiotelephone Operator Permit must be • You must monitor Channel 16 when you are not operating posted or kept with the
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PANEL DESCRIPTION 2 Front panel w CHANNEL/WEATHER CHANNEL KEY [CH/WX•DUAL] Function ➥ Selects and toggles the regular channel and Weather Speaker display (p. 4) qw e channel when pushed momentarily. (p. 6) ➥ Push for 1 sec. to start Dualwatch or Tri-watch. (p. 12) ➥ Push to stop Dualwatch or Tri-watch when either is acti- vated. (p. 12) r ➥ Advance the cursor while in the channel comment pro- gramming condition. (p. 9) e DSC/POSITION KEY [DSC•POS] ➥ Push to select the DSC menu. (p. 13) ➥ Push
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PANEL DESCRIPTION 2 Microphone i PUBLIC ADDRESS/RX SPEAKER KEY [PA•RX ] 2 ➥ Push to turn the Public Address mode ON or OFF. (p. 31) ➥ Push for 1 sec. to turn the RX Speaker mode ON or q OFF. (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 clear the displayed channel as Microphone a TAG (scanned) channel. ➥ While pushing [HI/LO] on the microphone, push for w e 3 sec. to clear or set all TAG channels in the selected channel grou
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2 PANEL DESCRIPTION Function display y DSC INDICATOR ! ! ! Indicates the DSC status. • “DSC” appears when a DSC call is received. (pgs. 25, 26) q • “POS REPLY” appears when a Position Request Reply call or ! w Position Report Reply call is received. (pgs. 28, 29) ! e u GPS INDICATOR r ! ➥ Appears while valid position data is received. t ➥ Blinks when invalid position data is received. ➥ Disappears when no GPS receiver is connected. ou i y i DUPLEX INDICATOR (p. 6) q CHANNEL COMMENT INDICATOR A
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BASIC OPERATION 3 Channel selection 2 ï ï Channel 16 ï ï Channel 9 (Call channel) Channel 16 is the distress and safety channel. It is used for Each regular channel group has a separate leisure-use call 3 establishing initial contact with another station and for emer- channel. The call channel is monitored during Tri-watch. The gency communications. Channel 16 is monitored during both call channels can be programmed (p. 8) and are used to store Dualwatch and Tri-watch. While standing by, you m
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3 BASIC OPERATION ï ï U.S.A., international and Canadian channels ï ï Weather channels The IC-M422 is pre-programmed with 57 U.S.A., 57 interna- The IC-M422 has 10 weather channels. These are used for tional and 61 Canadian channels. These channel groups may monitoring broadcasts from NOAA (National Oceanic and At- be specified for the operating area. mospheric Administration.) The transceiver can detect a weather alert tone on the se- q Push [CH/WX•DUAL] to select a regular channel. lected weath
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BASIC OPERATION 3 Receiving and transmitting CAUTION: Transmitting without an antenna may dam- Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83 CAN- age the transceiver. NOT be lawfully used by the general public in U.S.A. wa- 3 ters. q Push [VOL] for 2 sec. to turn power ON. IMPORTANT: To maximize the readability of your trans- w Set the audio and squelch levels. mitted signal, pause a few sec. after pushing [PTT], hold ➥ Rotate [SQL] fully counterclockwise in advance. the microphone 2 to 4
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3 BASIC OPERATION Call channel programming Call channel is used to select Channel 9 (default), however, r Push [Y] or [Z] to select you can program the call channel with your most often-used the desired channel. channels in each channel group for quick recall. q Push both [Y] and [Z] on the transceiver one or more t Push [16•9] to program the times to select the desired displayed channel as the channel group (U.S.A., In- call channel. • Push [CH/WX•DUAL] to can- ternational or Canada) to be ce
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BASIC OPERATION 3 Channel comments Microphone Lock function Memory channels can be labeled with alphanumeric com- The Microphone Lock function electrically locks [Y]/[Z] and ments of up to 10 characters each for easy channel recogni- [HI/LO] keys on the supplied microphone. This prevents ac- 3 tion. cidental channel changes and function access. Comments more than 7 characters long automatically scroll ➥ While pushing [HI/LO] on the microphone, turn power ON at the channel comment indicator a
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SCAN OPERATION 4 Scan types Scanning is an efficient way to locate signals quickly over a Set the TAG channels (scanned channel) before scanning. wide frequency range. The transceiver has Priority scan and Clear the TAG channels which inconveniently stop scanning, Normal scan. such as those for digital communication use. (Refer to right page for details.) When the Weather Alert function is turned ON, the previously selected (last used) weather channel is also checked while Choose Priority or No
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SCAN OPERATION 4 Setting TAG channels Starting a scan For more efficient scanning, add the desired channels as TAG Set scan type (Priority or Normal scan) and scan resume channels or clear the TAG for unwanted channels. timer in advance, using Set mode. (p. 32) Channels that are not tagged will be skipped during scanning. q Push both [Y] and [Z] to select the desired channel group 4 TAG channels can be assigned to each channel group (USA, (USA, INT, CAN) if desired. INT, CAN) independently. w
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DUALWATCH/TRI-WATCH 5 Description Operation Dualwatch monitors Channel 16 while you are receiving q Select Dualwatch or Tri-watch in Set mode. (p. 33) another channel; Tri-watch monitors Channel 16 and the call w Push [Y] or [Z] to select the desired operating channel. channel while receiving another channel. Dualwatch/Tri-watch e Push [CH/WX•DUAL] for 1 sec. to start Dualwatch or Tri- is convenient for monitoring Channel 16 when you are oper- watch. • “ ” blinks during Dualwatch; “ ” blinks
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DSC OPERATION 6 MMSI code programming MMSI code check The 9-digit MMSI (Maritime Mobile Service Identity: DSC self The 9-digit MMSI (DSC self ID) code can be checked. ID) code can be programmed at power ON. q Push [DSC•POS] to enter the DSC menu. This function is not available when the MMSI code has w Push [Y] or [Z] to select “ ” and push [DSC•POS]. been programmed by the dealer. This code programming 5 can be performed only twice. 6 q Turn power OFF. w While pushing [DSC•POS], turn power O
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6 DSC OPERATION DSC Address ID A total of 100 DSC address IDs (9-digit) can be programmed r Push [Y] or [Z] to set the 9-digit Individual/Group ID. • Push [CH/WX•DUAL] or [16•9] to move the cursor forward or and named with up to 7 characters. backward, respectively. • Push [LO/DX•IC] to cancel and exit the condition. D Programming Address ID 1st digit ‘0’ is fixed for a Group ID. When you input 1st digit ‘0’ q Push [DSC•POS] to enter the DSC menu. and other 8 digits, the ID is automatically reg
