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INSTRUCTION MANUAL
VHF MARINE TRANSCEIVER
iM502
This device complies with Part 15 of the FCC rules. Operation is sub-
ject to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
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IMPORTANT READ ALL INSTRUCTIONS carefully and completely SAVE THIS INSTRUCTION MANUAL — This in- before using the transceiver. struction manual contains important operating instructions for the IC-M502. IN CASE OF EMERGENCY If your vessel requires assistance, contact other vessels and Or, transmit your distress call using digital selective calling on the Coast Guard by sending a distress call on channel 16. channel 70. USING CHANNEL 16 USING DIGITAL SELECTIVE CALLING (Ch 70) DISTRESS CALL PROCED
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TABLE OF CONTENTS IMPORTANT .............................................. i n Position and time programming .... 14 12 SPECIFICATIONS AND IN CASE OF EMERGENCY ...................... i n Position indication ......................... 15 OPTIONS ........................... 42–43 TABLE OF CONTENTS ............................ ii n Distress call .................................. 16 n Specifications ............................... 42 CAUTIONS ............................................... iii n Tra
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CAUTIONS RWARNING! NEVER connect the transceiver to an AC AVOID the use of chemical agents such as benzine or al- outlet. This may pose a fire hazard or result in an electric cohol when cleaning, as they may damage the transceiver shock. surfaces. CAUTION: Changes or modifications to this device, not ex- BE CAREFUL! The transceiver rear panel will become pressly approved by Icom Inc., could void your authority to hot when operating continuously for long periods. operate this device under FCC regu
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OPERATING RULES 1 (2) OPERATOR’S LICENSE PRIORITIES 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. •You must monitor channel 16 when you are not operating on The Restricted Radiotelephone Operator Permit must be another channel. posted or ke
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PANEL DESCRIPTION 2 n Panel description !1 !0 o i VHF MARINE iM502 Function display DISTRESS WATERPROOF Speaker DSC/ENT SCAN CH/WX 16 9 POS TAG DW U/I/C q LO/DX HI/LO POWER IC SCR VOL SQL wer t y u q POWER SWITCH [POWER] r TRANSMIT POWER SWITCH [HI/LO] Push to toggle the transceiver power ON and OFF. Toggles high and low power when pushed. (p. 8) •Some channels are set to low power only. w VOLUME CONTROL [VOL] While pushing this switch, other switches perform sec- Adjusts the audio level. (p
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PANEL DESCRIPTION 2 While pushing [HI/LO], rotate [CHANNEL] to adjust the i DISTRESS SWITCH [DISTRESS] brightness of the LCD and switch backlight. Transmits distress call when pushed for 5 sec. (p. 16) y ATTENUATOR/INTERCOM/SCRAMBLER SWITCH o CHANNEL/DUALWATCH/TRI-WATCH SWITCH [LO/DX•IC•SCR] [CH/WX•DW•U/I/C] Toggles the attenuator function ON and OFF when Selects and toggles the regular channels and weather pushed momentarily. (p. 8) channel when pushed momentarily. (pgs. 6, 7) •“LOCAL” ap
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2 PANEL DESCRIPTION “Low battery” flashes when the battery voltage drops to n Function display approx. 10 V DC or below. “DUAL” appears during dualwatch; “TRI” appears dur- o i ing tri-watch. (p. 11) q t SCRAMBLER INDICATOR (p. 10) BUSY INT w Appears when an optional voice scrambler is activated. 25W CALL u e TAG SC DUP y DUPLEX INDICATOR (p. 6) r CALLING Appears when a duplex channel is selected. ty u CHANNEL NUMBER READOUT Indicates the selected operating channel number. “A” appears when
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PANEL DESCRIPTION 2 n Microphone q Speaker Microphone w e q PTT SWITCH [PTT] Push and hold to transmit; release to receive. (p. 8) w CHANNEL UP/DOWN SWITCHES [Y Y]/[Z Z] Push either switch to change the operating memory chan- nel, set mode contents, etc. (p. 8) e TRANSMIT POWER SWITCH [HI/LO] Same as the [HI/LO] switch on the front panel. (p. 8) While pushing [HI/LO] on the supplied microphone, turn power ON to toggle the lock function ON and OFF. (p. 7) 5
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BASIC OPERATION 3 Push [16•9] for 1 sec. to select the call channel of the se- n Channel selection lected channel group. •“CALL” and call channel number appear. Channel 16 •Each channel group may have an independent call channel after Channel 16 is the distress and safety channel. It is used for changing a call channel. establishing initial contact with another station and for emer- Push [CH/WX] to return to the condition before selecting gency communications. Channel 16 is monitored during
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BASIC OPERATION 3 q Push [CH/WX] once or twice to select a weather channel. •“WEATHER” appears when a weather channel is selected. “WX USA ALT” appears when the weather alert function is in use. (p. 31) w Rotate the channel selector to select a channel. •Channels are memorized separately for each channel group. U.S.A. channels WEATHER CH/WX HI/LO Push + DW U/I/C Push once CH/WX When weather alert is OFF. CANADA INT DW U/I/C or twice WXÊALT DUP Canadian channels International channels When weathe
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3 BASIC OPERATION u Push and hold [PTT] to transmit, then speak into the mi- n Receiving and transmitting crophone. •“TX” appears. CAUTION: Transmitting without an antenna may dam- •Channel 70 cannot be used for transmission (for GMDSS use). age the transceiver. Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83 CAN- q Push [POWER] to turn power ON. NOT be lawfully used by the general public in U.S.A. wa- w Set the audio and squelch levels. ters. Rotate [SQL] fully counterclockwise in advance.
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BASIC OPERATION 3 n Call channel programming n Channel names The call channel is used to select channel 9, however, you Memory channels can be tagged with alphanumeric names can program your most often-used channels in each channel of up to 10 characters each. group for quick recall. Capital letters, small letters, numerals, some symbols (! " # $ , . q While pushing [HI/LO], push [CH/WX•DW•U/I/C] one or % & ' ( ) Q + – ⁄) and spaces can be used. more times to select the desired channel group (U
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3 BASIC OPERATION n Optional voice scrambler operation Activating the scrambler Programming scrambler codes The optional voice scrambler provides private communica- There are 128 or 32 codes (0 to 127 or 1 to 32) available for tions. In order to receive or send scrambled transmissions programming when the optional UT-98 or UT-112 is installed. you must first activate the scrambler function. To activate the In order to understand one another, all transceivers in your function, an optional UT-98 or
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DUAL WATCH/TRI-WATCH 4 n Description n Operation Dualwatch monitors channel 16 while you are receiving an- q Select the desired operating channel. other channel; tri-watch monitors channel 16 and the call w Select dualwatch or tri-watch in set mode. (p. 31) channel while receiving another channel. e Push [CH/WX•DW•U/I/C] for 1 sec. to start dualwatch or tri-watch. •“DUAL” appears during dualwatch; “TRI” appears during tri-watch. •Beep tone sounds when a signal is received on channel 16. DUALWATC
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SCAN OPERATIONS 5 n 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 digital communication use. When the weather alert function is in use, the selected Choose priority or normal scan in set mode. (p. 31) weather channel is checked while scanning. (p. 31) PRIORITY SCAN NORMAL SCAN
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SCAN OPERATION 5 n Setting tag channels n Starting a scan For more efficient scanning, add desired channels as tag Set scan type (priority or normal scan) and scan resume timer channels or clear tag channels for unwanted channels. Chan- in advance using set mode. (p. 31) nels set as non-tag channels will be skipped during scanning. Tag channels can be assigned to each channel group q Set tag channels as described at left. (U.S.A., International, Canada) independently. w Make sure the squelch is
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DSC OPERATION 6 n MMSI code programming n Position and time programming The 9-digit MMSI (DSC self ID) code can be programmed at A distress call should include the ship’s position and time. If power ON. no GPS is connected, your position and UTC (Universal Time Coordinated) time should be input. They are included auto- This function is not available when the MMSI code has matically when a GPS receiver (NMEA0183 ver. 2.0) is con- been programmed by the dealer. This code programming nected. can b
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DSC OPERATION 6 r Push [DSC/ENT] to set the position and advance to time n Position indication setting condition. •Push [LO/DX] to abandon the setting and exit the condition. When an optional GPS receiver (NMEA0183 ver. 2.0) is con- nected, the transceiver can display the current position and InputÊtime
time. When no GPS receiver is connected, the transceiver UTC:ÊÊ:
displays the manually entered position and time. Nullù[H/L]
A GPS receiver appropriate for the IC-M502 is not supplied from Ic
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6 DSC OPERATION n Distress call Distress Completed A distress call should be transmitted if, in the opinion of the Master, the ship or a person is in distress and requires imme- WaitÊforÊACK diate assistance. r When receiving the acknowledgment, reply to the con- NEVER USE THE DISTRESS CALL WHEN nected station via the microphone. YOUR SHIP IS NOT IN AN EMERGENCY. A DISTRESS CALL CAN BE USED ONLY WHEN Received IMMEDIATE HELP IS NEEDED. DistressÊACK <ÊTokyoÊCG q Confirm any distress call is not bei
