INSTRUCTION MANUAL VHF MARINE TRANSCEIVER iM504
FOREWORD IMPORTANT Thank you for purchasing this Icom product. The IC-M504 VHF MARINE TRANSCEIVER is designed and built with Icom’s state of the art technology and craftsmanship. With proper care, this product should provide you with years of troublefree operation. READ ALL INSTRUCTIONS carefully and completely We want to take a couple of moments of your time to thank you for making the IC-M504 your radio of choice, and hope you agree with Icom’s philosophy of “technology first.
IN CASE OF EMERGENCY NOTE If your vessel requires assistance, contact other vessels and the Coast Guard by sending a Distress call on Channel 16. A WARNING STICKER is supplied with the transceiver. To comply with FCC regulations, this sticker must be affixed in such a location as to be readily seen from the operating controls of the radio as in the diagram below. Make sure the chosen location is clean and dry before applying the sticker. USING CHANNEL 16 DISTRESS CALL PROCEDURE 1. “MAYDAY MAYDAY MAYDAY.
RADIO OPERATOR WARNING Icom requires the radio operator to meet the FCC Requirements for Radio Frequency Exposure. An omnidirectional antenna with gain not greater than 9 dBi must be mounted a minimum W ARN ING of 5 meters (measured from the lowest point of the antenna) vertically above the main deck and all possible personnel. This is the minimum safe separation distance estimated to meet all RF exposure compliance requirements.
TABLE OF CONTENTS FOREWORD …………………………………………………………… i IMPORTANT …………………………………………………………… i EXPLICIT DEFINITIONS ……………………………………………… i IN CASE OF EMERGENCY…………………………………………… ii NOTE …………………………………………………………………… ii RADIO OPERATOR WARNING ……………………………………… iii TABLE OF CONTENTS ……………………………………………… iv PRECAUTIONS ………………………………………………………… v 1 OPERATING RULES ……………………………………………… 1 2 PANEL DESCRIPTION ………………………………………… 2–5 ■ Front panel ……………………………………………………… 2 ■ Function display ………………………………………………… 4 ■ Microphone …………………………………
PRECAUTIONS RWARNING! NEVER connect the transceiver to an AC outlet. This may pose a fire hazard or result in an electric shock. CAUTION: Changes or modifications to this device, not expressly approved by Icom Inc., could void your authority to operate this device under FCC regulations. NEVER connect the transceiver to a power source of more than 16 V DC or use reverse polarity. This will ruin the transceiver. NEVER cut the DC power cable between the DC plug at the back of the transceiver and fuse holder.
OPERATING RULES D PRIORITIES • Read all rules and regulations pertaining to priorities and keep an up-to-date copy handy. Safety and Distress calls take priority over all others. • You must monitor Channel 16 when you are not operating on another channel. • False or fraudulent distress signals are prohibited and punishable by law. D PRIVACY • Information overheard but not intended for you cannot lawfully be used in any way.
2 PANEL DESCRIPTION ■ Front panel Speaker Function display (p. 4) q w e r t !3 !2 y !1 !0 o i u Depends on version q DISTRESS KEY [DISTRESS] Push for 5 sec. to transmit a Distress call. (p. 23) w DSC MENU KEY [MENU] Push to toggle the DSC menu appear or disappear. (p. 15) e CLEAR KEY [CLR] Push to cancel the entered function, exit Set mode. (p. 55) 2 r HAIL/RX SPEAKER KEY [HAIL•RX ] ➥ Push to turn the hailer mode ON or OFF. (p. 52) ➥ Push and hold for 1 sec.
PANEL DESCRIPTION u CHANNEL SELECTOR [DIAL•ENTER] ➥ Rotate to select the operating channels, Set mode settings, etc. (pgs. 6–8, 55) ➥ While pushing and holding [H/L], rotate to adjust the brightness of the LCD and key backlight. (p. 10) ➥ Push to enter the input channel comment, selected item, etc. (pgs. 10, 55) ➥ Rotate to check TAG channels, changes scanning direction or resumes the scan manually during scan. (p.
2 PANEL DESCRIPTION ■ Function display q w e r t !5 !4 !3 !2 BUSY 25W INT LOC RX DUP SCRAM TAG NORMAL SCAN !1 -34°34.506N 123°23.236W Local 1:10 !0 y CALL CHANNEL INDICATOR (pgs. 6, 9) Appears when the call channel is selected. y CALL u i i CHANNEL NUMBER READOUT Indicates the selected operating channel number. o CHANNEL COMMENT INDICATOR Channel comment appears if programmed. (p. 10) CALLING o q RX SPEAKER INDICATOR (p. 51) Appears during the RX Speaker mode. w POWER INDICATOR (p.
PANEL DESCRIPTION 2 ■ Microphone !1 POSITION INDICATOR ➥ Shows the GPS position data. • “??” may blink every 2 sec. instead of position data when the GPS position data is invalid. In such a case, the last position data is held for up to 23.5 hours. • “??” may blink every 2 sec. instead of position data 4 hours after the position data is input manually, up until 23.5 hours have past. ➥ “No Position” appears when no GPS receiver is connected and no position data is input manually.
3 BASIC OPERATION ■ Channel selection ï Channel 16 ï Channel 9 (Call channel) Channel 16 is the distress and safety channel. It is used for establishing initial contact with a station and for emergency communications. Channel 16 is monitored during both Dualwatch and Tri-watch. While standing by, you must monitor Channel 16. Each regular channel group has a separate leisure-use call channel. The call channel is monitored during Tri-watch. The call channels can be programmed (p.
BASIC OPERATION 3 ï U.S.A., international and Canadian channels ï Weather channels The IC-M504 is pre-programmed with 57 U.S.A., 57 international and 61 Canadian channels. These channel groups may be specified for the operating area. The IC-M504 has 10 pre-programmed weather channels. These are used for monitoring broadcasts from NOAA (National Oceanographic and Atmospheric Administration.) q Push [CH/WX•DUAL•U/I/C] to select a regular channel.
3 BASIC OPERATION ■ Receiving and transmitting CAUTION: Transmitting without an antenna may damage the transceiver. q Push [POWER] 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. ➥ Rotate [SQL] clockwise until the noise disappears. e While pushing and holding [H/L], push [CH/WX•DUAL• U/I/C] to change the channel group. (p. 7) r Rotate [DIAL] to select the desired channel. (pgs.
BASIC OPERATION 3 ■ Call channel programming Call channel is used to select Channel 9 (default); however, you can program the call channel with your most often-used channels in each channel group for quick recall. q While pushing and holding [H/L], push [CH/WX•DUAL• U/I/C] one or more times to select the desired channel group (U.S.A., International or Canada) to be programmed. w Push [16•9] for 1 sec. to select the call channel of the selected channel group. • “CALL” and call channel number appear.
3 BASIC OPERATION ■ Channel comments ■ Microphone Lock function Memory channels can be labelled with a unique alphanumeric ID of up to 10 characters. The Microphone Lock function electrically locks [Y]/[Z] and [HI/LO] keys on the supplied microphone. This prevents accidental channel changes and function access. Capital letters, small letters, 0 to 9, some symbols (– . /) and space can be used. ➥ While pushing and holding [HI/LO] on the microphone, turn power ON to toggle the Lock function ON and OFF.
BASIC OPERATION 3 ■ Optional voice scrambler operation D Activating the scrambler D Programming scrambler codes The optional voice scrambler provides private communications. In order to receive or send scrambled transmissions you must first activate the scrambler function. To activate the function, an optional scrambler unit is necessary. See pgs. 57, 62 for setting the scrambler unit. Ask your dealer for details.
4 SCAN OPERATION ■ Scan types Scanning is an efficient way to locate signals quickly over a wide frequency range. The transceiver has Priority scan and Normal scan. When the Weather Alert function is turned ON, the previously selected (last used) weather channel is also checked while scanning. (p. 56) PRIORITY SCAN CH 01 CH 02 CH 16 CH 05 CH 03 CH 04 Priority scan searches through all TAG channels in sequence while monitoring Channel 16.
SCAN OPERATION 4 ■ Setting TAG channels ■ Starting a scan For more efficient scanning, add the desired channels as TAG channels 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. Set scan type (Priority or Normal scan) and scan resume timer in advance, using Set mode. (p.
5 DUALWATCH/TRI-WATCH ■ Description ■ Operation Dualwatch monitors Channel 16 while you are receiving on another channel; Tri-watch monitors Channel 16 and the call channel while receiving another channel. Dualwatch/Triwatch is convenient for monitoring Channel 16 when you are operating on another channel. q Select Dualwatch or Tri-watch in Set mode. (p. 56) w Rotate [DIAL] to select the desired operating channel. e Push [CH/WX•DUAL•U/I/C] for 1 sec. to start Dualwatch or Tri-watch.
DSC OPERATION 6 ■ MMSI code programming The 9-digit MMSI (Maritime Mobile Service Identity: DSC self ID) code can be programmed at power ON. This code programming can be performed only twice. q Turn power OFF. w While pushing [MENU], turn power ON to enter MMSI code programming condition. e After the display appears, release [MENU]. r Push [MENU] again to enter the DSC menu. t Rotate [DIAL] to select “Set up,” push [DIAL•ENTER].
6 DSC OPERATION ■ MMSI code check The 9-digit MMSI (DSC self ID) code can be checked. q Push [MENU] to enter the DSC menu. w Rotate [DIAL] to select “Set up,” push [DIAL•ENTER]. --DSC Menu-Select Item Position Report Polling Request Received Calls Distress Setting ˘Set up Exit e Rotate [DIAL] to select “MMSI [DIAL•ENTER]. --DSC Menu-Set up DEL:Group ID Offset Time ˘MMSI Check Auto ACK NMEA Output Exit 16 r Check the 9-digit MMSI (DSC self ID) code.
DSC OPERATION 6 ■ DSC address ID A total of 100 DSC address IDs can be programmed and named with up to 10 characters. D Programming Individual ID q Push [MENU] to enter the DSC menu. w Rotate [DIAL] to select “Set up,” push [DIAL•ENTER]. --DSC Menu-Select Item Position Report Polling Request Received Calls Distress Setting ˘Set up Exit r Rotate [DIAL] to set the individual ID and ID name. • Push [16•9] or [CH/WX•DUAL•U/I/C] to move the cursor forward or backward, respectively.
6 DSC OPERATION D Deleting Individual ID q Push [MENU] to enter the DSC menu. w Rotate [DIAL] to select “Set up,” push [DIAL•ENTER]. --DSC Menu-Select Item Position Report Polling Request Received Calls Distress Setting ˘Set up Exit e Rotate [DIAL] to select “DEL:INDV [DIAL•ENTER]. 18 --DSC Menu-Select ID John Paul ˘George Michael ID,” push • When no address ID is programmed, “No ID” is displayed. Push [CLR] to exit.
DSC OPERATION D Programming Group ID q Push [MENU] to enter the DSC menu. w Rotate [DIAL] to select “Set up,” push [DIAL•ENTER]. --DSC Menu-Select Item Position Report Polling Request Received Calls Distress Setting ˘Set up Exit e Rotate [DIAL] to select “Add:Group [DIAL•ENTER]. --DSC Menu-Set up Add:INDV ID ˘Add:Group ID DEL:INDV ID DEL:Group ID Offset Time MMSI Check ID,” push 6 r Rotate [DIAL] to set the group ID and ID name. • The group ID is a unique number that you create for your group.
6 DSC OPERATION D Deleting Group ID q Push [MENU] to enter the DSC menu. w Rotate [DIAL] to select “Set up,” push [DIAL•ENTER]. --DSC Menu-Select Item Position Report Polling Request Received Calls Distress Setting ˘Set up Exit e Rotate [DIAL] to select “DEL:Group [DIAL•ENTER]. 20 --DSC Menu-Select ID Icom Group A ˘Group B Group C ID,” push • When no address ID is programmed, “No ID” is displayed. Push [CLR] to exit.
DSC OPERATION 6 ■ Position and time programming A distress call should include the ship’s position and time data. If no GPS is connected, your position and UTC (Universal Time Coordinated) time should be input manually. They are included automatically when a GPS receiver (NMEA0183 ver. 2.0 or 3.01) is connected. q Push [MENU] to enter the DSC menu. w Rotate [DIAL] to select “Position Input,” and push [DIAL•ENTER].
6 DSC OPERATION ■ Position and time indication ■ GPS information indication When a GPS receiver (NMEA0183 ver. 2.0 or 3.01) is connected, the transceiver displays the current position and time. When no GPS receiver is connected, the transceiver displays the manually entered position and time. When a GPS receiver (NMEA0183 ver. 2.0 or 3.01) is connected, the transceiver displays the GPS information after pushing and holding [DIAL•ENTER] for 1 sec.
DSC OPERATION 6 ■ Distress call A distress call should be transmitted, if in the opinion of the Master, the ship or a person is in distress and requires immediate assistance. NEVER USE THE DISTRESS CALL WHEN YOUR SHIP OR A PERSON IS NOT IN AN EMERGENCY. A DISTRESS CALL CAN BE USED ONLY WHEN IMMEDIATE HELP IS NEEDED. e After transmitting the distress call, the transceiver waits for an acknowledgment call on Channel 70. • The distress call is automatically transmitted every 3.5 to 4.5 minutes.
6 DSC OPERATION ➥ A distress alert contains (default); • Nature of distress : Undesignated distress • Position data : GPS or manual input position data held for 23.5 hrs or until the power is turned OFF. ➥ The distress call is repeated every 3.5–4.5 min., until receiving an ‘acknowledgement.’ ➥ Push [CLR] to cancel the ‘Call repeat’ mode. ➥ “??” may blink instead of position and time indications when the GPS data is invalid, or has not been manually updated after 4 hours.
DSC OPERATION When a GPS receiver (NMEA0183 ver. 2.0 or 3.01) is connected, steps r and t (Current position/time programming) do not appear. Go to step y. --DSC Menu-Input UTC Time __:__ Null r The position information appears. Set your position (latitude and longitude) data by rotating [DIAL]. • Push [16•9] or [CH/WX•DUAL•U/I/C] to move the cursor forward or backward, respectively.
6 DSC OPERATION i After receiving the acknowledgment, reply using the microphone. 25W INT TAG Received DistressACK To ensure correct operation of the DSC function, please make sure you set the squelch correctly. (p. 8) D Transmitting an individual call CALLING ➥ A distress alert contains (default); • Nature of distress : Selected nature of the distress • Position data : GPS or manual input position data is held for 23.5 hrs or until the power is turned OFF.
DSC OPERATION e Rotate [DIAL] to select the desired pre-programmed indiInput,” push vidual address or “Manual [DIAL•ENTER]. • The ID code for the individual call can be set in advance. (p. 17) • When “Manual Input” is selected, set the 9-digit MMSI number for the individual you wish to call by rotating [DIAL]. 1st digit must not be ‘0’. --DSC Menu-Select Address Manual Input John ˘Paul George Michael 6 r Rotate [DIAL] to select a desired intership channel, push [DIAL•ENTER].
6 DSC OPERATION y Standby on Channel 70 until an acknowledgement is received. --DSC Menu-Individual Call TX Complete Now Waiting for ACK 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 comply’ is received, the display returns to the operated channel (before enter the DSC menu) with beeps.
DSC OPERATION r Rotate [DIAL] to select “Able to Comply” or “Unable to Comply,” push [DIAL•ENTER]. • When “Unable to Comply” is selected, “No Reason Given” will be transmitted. --DSC Menu-Select Action ˘Able to Comply Unable to Comply --DSC Menu-Individual ACK Ready t Push [DIAL•ENTER] to transmit the acknowledgement call to the selected station.
6 DSC OPERATION r Rotate [DIAL] to select a desired intership channel, push [DIAL•ENTER]. • Intership channels are already preset into the transceiver in recommended order. --DSC Menu-Select Intership CH ˘08 69 77 06 --DSC Menu-Group Call Ready t Push [DIAL•ENTER] to transmit the group call. • If Channel 70 is busy, the transceiver stands by until the channel becomes clear.
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 all ships within range, use the all ships call function. q Push [MENU] to enter the DSC menu. w Rotate [DIAL] to select “All Ships Call,” and push [DIAL•ENTER]. • “Position Input” item appears when a GPS receiver (NMEA0183 ver. 2.0 or 3.01) is not connected.
6 DSC OPERATION t After the all ships call has been transmitted, the following indication is displayed. --DSC Menu-All Ships Call TX Complete y Push [CLR] to exit and the transceiver selects Channel 16 automatically. • Even if [CLR] hasn’t been pushed, the transceiver automatically selects Channel 16 after 2 sec. of inactivity. D Transmitting a position request call Transmit a position request call when you want to know a specific ship’s current position, etc.
DSC OPERATION --DSC Menu-Select Address Manual Input John ˘Paul George Michael --DSC Menu-POS Request Ready 6 t After the position request call has been transmitted, the following indication is displayed. --DSC Menu-Position Request TX Complete Now Waiting for ACK 6 y Push [CLR] to return to the previous indication before entering the DSC menu.
6 DSC OPERATION D Transmitting a position report call Transmit a position report call when you want to announce your own position to a specific ship and to get an answer, etc. q Push [MENU] to enter the DSC menu. w Rotate [DIAL] to select “Position Report,” push [DIAL•ENTER]. • “Position Input” item appears when a GPS receiver (NMEA0183 ver. 2.0 or 3.01) is not connected.
DSC OPERATION --DSC Menu-Input UTC Time __:__ Null OK> --DSC Menu-Position Report Ready 6 u After the position report call has been transmitted, the following indication is displayed. --DSC Menu-Position Report TX Complete Now Waiting for ACK 6 i Push [CLR] to return to the previous indication before entering the DSC menu.
6 DSC OPERATION D Transmitting a polling request call Transmit a polling request call when you want to know if a specific vessel is within communication range. q Push [MENU] to enter the DSC menu. w Rotate [DIAL] to select “Polling Request,” push [DIAL•ENTER]. --DSC Menu-Select Item Individual Call Group Call All Ships Call Position Request Position Report ˘Polling Request e Rotate [DIAL] to select the desired pre-programmed indiInput,” push vidual address or “Manual [DIAL•ENTER].
DSC OPERATION t After the polling request call has been transmitted, the following indication is displayed. --DSC Menu-Polling Request TX Complete Now Waiting for ACK y Push [CLR] to return to the previous indication before entering the DSC menu. • Even if [CLR] hasn’t been pushed, the display automatically returns to the previous indication after 2 sec. of inactivity.
6 DSC OPERATION When a GPS receiver (NMEA0183 ver. 2.0 or 3.01) is connected, next steps r, t (Current position/time programming) do not appear. Go to step y. r The position information appears. Set your position (latitude and longitude) data by rotating [DIAL]. • Push [16•9] or [CH/WX•DUAL•U/I/C] to move the cursor forward or backward, respectively.
DSC OPERATION 6 D Transmitting a position report reply call Transmit a position report reply call when a position report call is received. q Push [MENU] to enter the DSC menu. w Rotate [DIAL] to select “POS Report Reply,” push [DIAL•ENTER]. • “POS Report Reply” item appears after a position report call is received.
6 DSC OPERATION D Transmitting a polling request reply call Transmit a polling reply call when a polling request call is received. q Push [MENU] to enter the DSC menu. w Rotate [DIAL] to select “Polling Reply,” push [DIAL•ENTER]. • “Polling Reply” item appears after a polling request call is received. --DSC Menu-Select Item Group Call All Ships Call Position Request Position Report Polling Request ˘Polling Reply e Rotate [DIAL] to select the desired individual address or ID code, push [DIAL•ENTER].
DSC OPERATION 6 ■ 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 [CLR] to stop the alarm. ➥ “Received Distress” appears in the display, then Channel 16 is automatically selected. ➥ Continue monitoring Channel 16 as a coast station may require assistance.
6 DSC OPERATION D Receiving an individual call D Receiving a group call While monitoring Channel 70 and an individual call is received: ➥ The emergency alarm or beeps sound depending on the received category. ➥ “Received Individual” appears in the display. ➥ Push [CLR] to stop the beep, then push [DIAL•ENTER] to reply the call and select the channel specified by the calling station for voice communication (depending on your replying condition see p.
DSC OPERATION 25W TAG Received All Ships INT SAFETY D Receiving a geographical area call While monitoring Channel 70 and a geographical area call (for the area you are in) is received: ➥ Emergency alarm or beeps sound depending on the received category. ➥ “Received Geographic” appears in the display.
6 DSC OPERATION D Receiving a polling request call D Receiving a position report reply call While monitoring Channel 70 and a polling request call is received: ➥ “Received POLL REQ” appears in the display. ➥ Push [CLR] to stop the beep, then push [DIAL•ENTER] to reply to the call; push [CLR] to ignore the call. While monitoring Channel 70 and a position report reply call is received: ➥ “Received POS Reply” appears in the display.
DSC OPERATION 6 ■ Received messages The transceiver automatically stores up to 20 distress messages and 20 other messages. The messages can be used as an assistance to the logbook. w Rotate [DIAL] to scroll to the desired message, push [DIAL•ENTER]. • Messages which are blinking have not been read. --DSC Menu-Select Message ˘12:15 John 04:43 George q Push [MENU] to enter the DSC menu. w Rotate [DIAL] to select “Received Calls,” push [DIAL•ENTER].
6 DSC OPERATION D Other messages q Rotate [DIAL] to select “Other,” push [DIAL•ENTER]. --DSC Menu-Select Message Distress ˘Other w Rotate [DIAL] to scroll to the desired message, push [DIAL•ENTER]. • Messages which are blinking have not been read. --DSC Menu-Select Message ˘Individual Call Group Call Position Replay All Ships Call 46 e Rotate [DIAL] to scroll the message. • The stored message has various information, depending on the type of distress call.
DSC OPERATION 6 ■ DSC Set mode D MMSI code check (See p. 16) D Add Individual ID/Group ID (See pgs. 17, 19) D Delete Individual ID/Group ID (See pgs. 18, 20) D Offset time This item sets the offset time from the UTC (Universal Time Coordinated) time. q Push [MENU] to enter the DSC menu. up,” and push w Rotate [DIAL] to select “Set [DIAL•ENTER].
6 DSC OPERATION D Automatic acknowledgement This item sets the automatic acknowledgement function to ON or OFF. When a position request, position report or polling request call is received, the transceiver automatically transmits a position request reply, position report reply or polling reply call, respectively. q Push [MENU] to enter the DSC menu. w Rotate [DIAL] to select “Set up,” push [DIAL•ENTER].
DSC OPERATION D NMEA Output Select an NMEA Output function from OFF, All Station or List Station. When receiving position acknowledgment, the transceiver outputs it to the external equipment via the NMEA connector. q Push [MENU] to enter the DSC menu. w Rotate [DIAL] to select “Set up,” push [DIAL•ENTER]. e Rotate [DIAL] to select “NMEA [DIAL•ENTER]. r Rotate [DIAL] to select the NMEA Output function from OFF, All Station or List Station.
7 OTHER FUNCTIONS ■ Intercom operation The optional Intercom function allows you to talk to the deck from the cabin. The optional command microphone is required for Intercom operation. Connect an optional command microphone as described on p. 63. • Transmitting is impossible during Intercom operation. • The received signal is muted during Intercom operation. q Push and hold [LO/DX•IC•SCRM] for 1 sec. to enter Intercom mode.
OTHER FUNCTIONS 7 ■ RX Speaker function • 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. • When a DSC call is received, the intercom function is interrupted with an automatic return to the transceiver mode. The transceiver’s display indicates ‘Receiving DSC calls.’ (p. 41) • When a WX alert is received, “WX ALERT” blinks and a beep sounds.
7 OTHER FUNCTIONS ■ Hailer operation The IC-M504 has a hailer function for voice amplification over a loudspeaker, making it unnecessary to leave the bridge to talk a hailing party. Connect an external hailer speaker (25 W nominal at 13.8 V/4 Ω) as described on p. 58. • Transmitting is not possible during hailer operation. • The received signal is muted during hailer operation. q Push [HAIL•RX Push ] to enter hailer mode.
OTHER FUNCTIONS 7 ■ Automatic foghorn function The automatic foghorn function sounds a horn repeatedly until the function is turned OFF. Four patterns are available for varying conditions. TYPE The foghorn outputs from the hailer speaker. To use this function, the hailer speaker must be connected to the transceiver. See p. 58 for connection details. PATTERN USAGE 5s±1 UNDERWAY One 5-second blasts every 120 seconds. Motor vessel underway and making way.
7 OTHER FUNCTIONS q While pushing and holding [H/L], push [HAIL•RX enter auto foghorn mode. 25W ] to INT TAG Push and ˘UNDERWAY STOP CALLING w Rotate [DIAL] to select the desired foghorn pattern, push [DIAL•ENTER]. • ‘UNDERWAY,’ ‘STOP,’ ‘SAIL,’ ‘TOW’ are available. (p. 53) • Even if [DIAL•ENTER] hasn’t been pushed, the display automatically changes to the next step after 5 sec. of inactivity. e Rotate [DIAL] to adjust the foghorn level, push [DIAL•ENTER].
SET MODE ■ Set mode programming ■ Set mode items Set mode is used to change the conditions of the transceiver’s functions: Scan type, Scan resume timer, Weather alert, Dual/Tri-watch, Beep tone, LCD contrast, Automatic foghorn frequency, Radio power, Scrambler type* and Scrambler code.* D Scan type *Appears only when the optional scrambler unit is installed. Available functions may differ depending on how they are set by the dealer. q Turn power OFF.
8 SET MODE D Weather alert A NOAA broadcast station transmits a weather alert tone before important weather information. When “ON” is selected, the previously selected (used) weather channel is checked any time during standby or while scanning. When “ON with WX SCAN” is selected, the weather channels are checked in sequence during standby or while scanning. The “WX ALERT” indicator blinks until the transceiver is operated after the transceiver detects the alert. .
SET MODE 8 D Automatic foghorn frequency D Scrambler type The audio frequency of the automatic foghorn can be adjusted to suit your preference. While this item is selected, pushing [PTT] outputs the foghorn— experiment with the frequencies available until you find one you like. (Appears when a scrambler unit is installed) When an optional scrambler unit is installed, the scrambler type can be selected in set mode depending on how it is set by the dealer.
9 CONNECTIONS AND MAINTENANCE ■ Connections q w e r t !0 e EXTERNAL SPEAKER LEAD (Yellow) Connects to an external speaker. Ferrite core* Do not loose! y r HAILER/FOGHORN (–) LEAD (Black) Connects to a hailer speaker (25 W nominal at 13.8 V/4 Ω). t HAILER/FOGHORN (+) LEAD (Blue) Connects to a hailer speaker (25 W nominal at 13.8 V/4 Ω). o i u q NMEA IN LEAD (Red) Connects to a GPS receiver for position indication. • A NMEA0183 ver. 2.0 or 3.
CONNECTIONS AND MAINTENANCE 9 ■ Supplied accessories CAUTION: After connecting the DC power cable, NMEA IN/OUT leads, external speaker lead and hailer/foghorn lead, cover the connector and leads with an adhesive tape as shown below, to prevent water seeping into the transceiver.
9 CONNECTIONS AND MAINTENANCE ■ Mounting the transceiver D Using the supplied mounting bracket The universal mounting bracket supplied with your transceiver allows overhead or dashboard mounting. • Mount the transceiver securely with the 4 supplied screws (5 × 20) to a surface which is more than 10 mm thick and can support more than 5 kg. • Mount the transceiver so that the face of the transceiver is at 90° to your line of sight when operating it.
CONNECTIONS AND MAINTENANCE 9 ■ MB-75 installation An optional MB-75 FLUSH MOUNT KIT 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 compass. q Using the template on the last page, carefully cut a hole into the instrument panel (or wherever you plan to mount the transceiver). w Slide the transceiver through the hole as shown below.
9 CONNECTIONS AND MAINTENANCE ■ UT-112/UT-98 installation CAUTION: DISCONNECT the DC power cable from the transceiver before performing any work on the transceiver. Otherwise, there is danger of electric shock and/or equipment damage. w Disconnect the flat cable and NMEA (4 pin) from J5 of the LOGIC unit. LOGIC unit NMEA (4 pin) Follow the case opening procedure shown here when you want to install an optional scrambler unit. q Remove the 6 screws as shown below and open the transceiver.
CONNECTIONS AND MAINTENANCE 9 ■ HM-162/HM-157 installation r Return the cables and screws to the original position. • Be sure not upside down the flat cable. CAUTION: • When re-assembling the case and tightening the screws, you must keep the specified torque (0.5±0.07 N.m). Otherwise the transceiver may be damaged (torque too high) or lose waterproof efficiency (torque too low). • When uninstalling the optional unit, remove it vertically.
9 CONNECTIONS AND MAINTENANCE q Insert the supplied cable into the external microphone jack and tighten the cable nut as shown below. • HM-157 Mounting base Nut Gasket Screw holes (approx. 2 (d) mm; 3 32″) w To use the supplied cable as a wall socket, perform the following steps. e Using the mounting base as a template, carefully mark the holes where the cable and three screws will be fastened. r Drill holes at these marks. t Install the mounting base using the supplied screws as shown below.
CONNECTIONS AND MAINTENANCE 9 D HM-162 Mounting base 9 Nut Gasket Cap 65
9 CONNECTIONS AND MAINTENANCE D HM-157 Mounting base 5 mm; 3⁄16˝ 50 (d) mm; 131⁄32˝ 23 (d) mm; 29⁄32˝ 24 to 27 (d) mm (15⁄16 to 11⁄16˝) 2 mm; 3⁄32˝ Nut Gasket 66 Cap
TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTION 10 REF. The transceiver does • Bad connection to the power supply. not turn ON. • Check the connection to the transceiver. p. 58 No sound from speaker. • Squelch level is too high. • Volume level is too low. • Speaker has been exposed to water. • Set [SQL] to the threshold point. • Set [VOL] to a suitable level. • Drain water from the speaker. p. 8 p. 8 — Sensitivity is low. • Push [LO/DX•IC•SCRM] to turn the function p. 8 OFF.
11 SPECIFICATIONS AND OPTIONS ■ Specifications D General • Frequency coverage • Mode • Channel spacing • Current drain (at 13.8 V) • Power supply requirement • Frequency stability • Antenna impedance • Dimensions (Projections not included) • Weight D Receiver : Tx 156.025–157.425 MHz Rx 156.050–163.275 MHz : FM (16K0G3E), DSC (16K0G2B) : 25 kHz : TX high 5.5 A max. Max. audio 1.5 A max. : 13.8 V DC ±15% (negative ground) : ±10 ppm (–20°C to +60°C; –4°F to +140°F) : 50 Ω nominal : 165(W) × 110(H) × 123.
SPECIFICATIONS AND OPTIONS 11 ■ Options D Dimensions • MB-75 FLUSH MOUNT KIT For mounting the transceiver to a panel. • HM-162 COMMANDMIC III™ External microphone-type controller. Provides optional intercom operation. 6 m (20 feet) microphone cable and mounting base included. Black and white colors are available. Do not connect the HM-162 to the OPC-999. • HM-157 COMMANDMIC II™ External microphone-type controller. Provides optional intercom operation.
12 CHANNEL LIST Channel number Frequency (MHz) Channel number Frequency (MHz) Channel number Frequency (MHz) Channel number Frequency (MHz) USA INT CAN Transmit Receive USA INT CAN Transmit Receive USA INT CAN Transmit Receive USA INT CAN Transmit Receive 156.050 160.650 19A 64A 83A 156.050 156.050 20 20A 01 01 01A 02 02 156.100 160.700 03 03 156.150 160.750 03A 156.150 156.150 04 156.250 160.850 21 06 07A 21A 157.050 157.050 66A 66A 66A*1 156.325 156.325 21b Rx only 161.
TEMPLATE R12 (Max.
MEMO
A-6483H-1US-q Printed in Japan © 2006 Icom Inc.
