!IC-M302_draft.qxd 03.9.1 6:02 PM Page 1 (1,1) New2001 INSTRUCTION MANUAL VHF MARINE TRANSCEIVER iM302 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.
!IC-M302_draft.qxd 03.9.1 6:02 PM Page i (1,1) New2001 IMPORTANT READ ALL INSTRUCTIONS carefully and completely before using the transceiver. SAVE THIS INSTRUCTION MANUAL This in-
struction manual contains important operating instructions for the IC-M302. EXPLICIT DEFINITIONS WORD R WARNING!
CAUTION NOTE DEFINITION Personal injury, re hazard or electric shock may occur. Equipment damage may occur. Recommended for optimum use. No risk of personal injury, re or electric shock. FOREWARD Thank you for purchasing this Icom product. The IC-
M302 VHF MARINE TRANSCEIVER is designed and built with Icoms state of the art technology and craftsman-
ship. With proper care, this product should provide you with years of trouble-free operation. We want to take a couple of moments of your time to thank you for making the IC-M302 your radio of choice, and hope you agree with Icoms philosophy of tech-
nology rst. Many hours of research and development went into the design of your IC-M302. DFEATURES Standard 48ush mount design Built-in DSC meets ITU Class D requirement Rugged waterproof construction Large LCD with dot matrix characters Superior receiver performance Optional COMMANDMICTM
(2 systems are connectable) i
!IC-M302_draft.qxd 03.9.1 6:02 PM Page ii (1,1) New2001 IN CASE OF EMERGENCY NOTE A WARNING STICKER is supplied with the transceiver. To comply with FCC regulations, this sticker must be afxed in such a location as to be readily seen from the operating con-
trols of the radio as in the diagram below. Make sure the cho-
sen location is clean and dry before applying the sticker. (p. ?) EXAMPLE If your vessel requires assistance, contact other vessels and the Coast Guard by sending a distress call on Channel 16. USING CHANNEL 16 DISTRESS CALL PROCEDURE 1. MAYDAY MAYDAY MAYDAY. 2. THIS IS ............... (name of vessel) 3. Your call sign or other indication of the vessel (AND 9-
digit DSC ID if you have one). 4. LOCATED AT ............... (your position) 5. The nature of the distress and assistance required. 6. Any other information which might facilitate the rescue. Or, transmit your distress call using digital selective calling on Channel 70. USING DIGITAL SELECTIVE CALLING (Ch 70) DISTRESS CALL PROCEDURE 1. While lifting up the switch cover, push and hold
[DISTRESS] for 5 sec. until you hear 5 short beeps change to one long beep. 2. Wait for an acknowledgment from a coast station. Channel 16 is automatically selected. 3. Push and hold [PTT], then transmit the appropriate information as at left. ii
!IC-M302_draft.qxd 03.9.1 6:02 PM Page iii (1,1) New2001 W ARNING RADIO OPERATOR WARNING Icom requires the radio operator to meet the FCC Requirements for Radio Frequency Expo-
sure.An omnidirectional antenna with gain not greater than 9 dBi must be mounted a minimum 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 re-
quirements. This 5 meter distance is based on the FCC Safe Maximum Permissible Exposure (MPE) distance of 3 meters added to the height of an adult (2 meters) and is appropriate for all vessels. For watercraft without suitable structures, the antenna must be mounted so as to maintain a minimum of 1 meter vertically between the antenna, (measured from the lowest point of the antenna), to the heads of all persons AND all persons must stay outside of the 3 meter MPE radius. Do not transmit with radio and antenna when persons are within the MPE radius of the antenna, unless such persons
(such as driver or radio operator) are shielded from antenna eld by a grounded metallic barrier. The MPE Radius is the minimum distance from the antenna axis that person should maintain in order to avoid RF exposure higher than the allow-
able MPE level set by FCC. iii FAILURE TO OBSERVE THESE LIMITS MAY ALLOW THOSE WITHIN THE MPE RADIUS TO EXPERIENCE RF RADIATION ABSORPTION WHICH EXCEEDS THE FCC MAXIMUM PERMISSIBLE EXPOSURE (MPE) LIMIT. IT IS THE RESPONSIBILITY OF THE RADIO OPERATOR TO ENSURE THAT THE MAXIMUM PERMISSIBLE EXPO-
SURE LIMITS ARE OBSERVED AT ALL TIMES DURING RADIO TRANSMISSION. THE RADIO OPERATOR IS TO ENSURE THAT NO BYSTANDERS COME WITHIN THE RADIUS OF THE MAXIMUM PERMISSIBLE EXPOSURE LIMITS. Determining MPE Radius THE MAXIMUM PERMISSIBLE EXPOSURE (MPE) RA-
DIUS HAS BEEN ESTIMATED TO BE A RADIUS OF ABOUT 3M PER OET BULLETIN 65 OF THE FCC. THIS ESTIMATE IS MADE ASSUMING THE MAXIMUM POWER OF THE RADIO AND ANTENNAS WITH A MAXI-
MUM GAIN OF 9dBi ARE USED FOR A SHIP MOUNTED SYSTEM.
!IC-M302_draft.qxd 03.9.1 6:02 PM Page iv (1,1) New2001 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 PRECAUTION v 1 OPERATING RULES 1 2 PANEL DESCRIPTION 24 I Panel description 2 I Function display 3 I Microphone 4 3 BASIC OPERATION 58 I Channel selection 5 I Receiving and transmitting 7 I Call channel programming 8 I Channel names 8 I Microphone lock function 8 4 DUALWATCH/TRI-WATCH 9 I Description 9 I Operation 9 5 SCAN OPERATION 1011 I Scan types 10 I Setting tag channels 11 I Starting a scan 11 6 SET MODE 1214 I SET mode programming 12 I SET mode items 13 7 TROUBLESHOOTING 15 8 CHANNEL LIST 16 9 SPECIFICATIONS AND OPTIONS 17 iv
!IC-M302_draft.qxd 03.9.1 6:02 PM Page v (1,1) New2001 PRECAUTION RWARNING! NEVER connect the transceiver to an AC outlet. This may pose a fire hazard or result in an electric shock. CAUTION: Changes or modications to this device, not ex-
pressly 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 trans-
ceiver. NEVER cut the DC power cable between the DC plug and fuse holder. If an incorrect connection is made after cutting, the transceiver may be damaged. NEVER place the transceiver where normal operation of the vessel may be hindered or where it could cause bodily injury. KEEP the transceiver at least 3.3 ft (1 m) away from the ships navigation compass. DO NOT use or place the transceiver in areas with temper-
atures below 4F (20C) or above +140F (+60C) or, in areas subject to direct sunlight, such as the dashboard. AVOID the use of chemical agents such as benzine or al-
cohol when cleaning, as they may damage the transceiver surfaces. v BE CAREFUL! The transceiver rear panel will become hot when operating continuously for long periods. Place the transceiver in a secure place to avoid inadvertent use by children. BE CAREFUL! The transceiver and optional HM-127 em-
ploy waterproof construction, which corresponds to JIS wa-
terproof specication, Grade 7 (1 m/30 min.). However, once the transceiver or microphone has been dropped, water-
proong cannot be guaranteed due to the fact that the case may be cracked, or the waterproof seal damaged, etc.
!IC-M302_draft.qxd 03.9.1 6:02 PM Page 1 (1,1) OPERATING RULES 1 DD 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.
(2) OPERATORS LICENSE A Restricted Radiotelephone Operator Permit is the license most often held by small vessel radio operators when a radio is not required for safety purposes. 1 You must monitor Channel 16 when you are not operating on another channel. False or fraudulent distress signals are prohibited and pun-
ishable by law. DD PRIVACY Information overheard but not intended for you cannot law-
fully be used in any way. Indecent or profane language is prohibited. DD RADIO LICENSES
(1) SHIP STATION LICENSE You must have a current radio station license before using the transceiver. It is unlawful to operate a ship station which is not licensed. Inquire through your dealer or the appropriate government agency for a Ship-Radiotelephone license application. This government-issued license states the call sign which is your crafts identication for radio purposes. The Restricted Radiotelephone Operator Permit must be posted or kept with the operator. Only a licensed radio opera-
tor may operate a transceiver. However, non-licensed individuals may talk over a transceiver if a licensed operator starts, supervises, ends the call and makes the necessary log entries. Keep a copy of the current government rules and regulations handy. Radio license for boaters (U.S.A. only) The Telecommunications Act of 1996 permits recreational boaters to have and use a VHF marine radio, EPIRB, and marine radar without having an FCC ship station license. Boaters traveling on international voyages, having an HF single sideband radiotelephone or marine satellite termi-
nal, or required to carry a marine radio under any other regulation must still carry an FCC ship station license. For further information, see the FCC Ship Radio Stations Fact Sheet. 1
!IC-M302_draft.qxd 03.9.1 6:02 PM Page 2 (1,1) New2001 2 PANEL DESCRIPTION I Panel description Speaker Function display q i u y t r e q POWER/VOLUME CONTROL [VOL]
w Turns power ON and OFF and adjusts the audio level. (p. 7) w SQUELCH CONTROL [SQL]
Sets the squelch threshold level. (p. 7) e DISTRESS SWITCH [DISTRESS]
Transmits distress call when pushed for 5 sec. r CHANNEL 16/CALL CHANNEL SWITCH [169]
Selects channel 16 when pushed. (p. 5) Selects call channel when pushed for 1 sec. (p. 5) CALL appears when call channel is selected. Push for 3 sec. to enter call channel programming con-
dition when call channel is selected. (p. 8) While pushing [CH/WXDUAL], enters channel name programming condition. (p. 8) Enters set mode when pushed while turning power ON.
(p. 12) 2 t DSC/POSITION SWITCH [DSC/ENTPOS]
Selects the DSC menu when pushed. Shows current position and time from a GPS receiver, etc. when pushed for 1 sec. y CHANNEL/WEATHER CHANNEL SWITCH
[CH/WXDUAL]
Selects and toggles the regular channels and weather channel when pushed momentarily. (p. 6) Starts dualwatch or tri-watch when pushed for 1 sec.
(p.9) Stops dualwatch or tri-watch when either is activated. u SCAN SWITCH [SCANTAG]
Starts and stops normal or priority scan. Sets or clears the displayed channel as a tag (scanned) channel when pushed for 1 sec. While pushing [HI/LO] on the microphone, clears all tag channels in the selected channel group when pushed for 3 sec. i CHANNEL UP/DOWN SWITCHES [YY]/[ZZ][U/I/C]
Selects an operating channel. (p. 6) Selects the SET mode condition of item. (p. 12) While pushing [SCANTAG], push [Y]/[Z] to adjust the brightness of the LCD and switch backlight. Selects one of 3 regular channels in sequence when both switch are pushed. (p. 6) International, U.S.A. and Canadian channels are available for regular channels.
!IC-M302_draft.qxd 03.9.1 6:02 PM Page 3 (1,1) New2001 I Function display q w e r
!2
!1
!0 t y u o i q TRANSMIT INDICATOR (p. 7) appears while transmitting. w BUSY INDICATOR (p. 7) appears when receiving a signal or when the squelch opens. e CHANNEL NUMBER READOUT Indicates the selected operating channel number. A appears when a simplex channel is selected. (p.6) In set mode, indicates the selected condition. (p. 12) r CHANNEL NAME INDICATOR Channel name appears if programmed. (p. 8) scrolls when the battery voltage drops to approx. 10 V DC or below. blinks during dualwatch;
blinks during tri-
watch. (p. 9) PANEL DESCRIPTION 2 t TAG CHANNEL INDICATOR (p. 11) Appears when a tag channel is selected. y GPS INDICATOR GPS appears while valid position data is received. GPS blinks when invalid position data is received. GPS disappears when no GPS receiver is connected. u DSC INDICATOR Indicates the DSC status. i DUPLEX INDICATOR (p. 6) Appears when a duplex channel is selected. o WEATHER CHANNEL INDICATOR (p. 6) WX appears when a weather channel is selected. WX ALT appears when the weather alert function is in use; blinks when an alert tone is received.
!0 CALL CHANNEL INDICATOR CALL appears when the call channel is selected. (p. 5)
!1 CHANNEL GROUP INDICATOR Indicates whether a U.S.A. (USA), International (INT), or Canadian (CANADA) channel is in use.
!2 LOW POWER INDICATOR (p. 7) LOW appears when low power is selected. 2 3
!IC-M302_draft.qxd 03.9.1 6:02 PM Page 4 (1,1) New2001 2 PANEL DESCRIPTION I Microphone q w Microphone e q PTT SWITCH [PTT]
Push and hold to transmit; release to receive. (p. 7) w CHANNEL UP/DOWN SWITCHES [YY]/[ZZ]
Push either switch to change the operating memory chan-
nel, set mode contents, etc. (pgs. 6, 12) e TRANSMIT POWER SWITCH [HI/LO]
Toggles high and lower power when pushed. (p. 7) Some channels are set to low power only. 4
!IC-M302_draft.qxd 03.9.1 6:02 PM Page 5 (1,1) I Channel selection Channel 16 Channel 16 is the distress and safety channel. It is used for establishing initial contact with another station and for emer-
gency communications. Channel 16 is monitored during both dualwatch and tri-watch. While standing by, you must monitor Channel 16. Push [169] momentarily to select channel 16. Push [CH/WXDUAL] to return to the condition before select-
ing Channel 16, or push [Y]/[Z] to select operating channel. Push BASIC OPERATION 3 Channel 9 (Call channel) 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. 8) and are used to store your most often used channels in each channel group for quick recall. Push [169] for 1 sec. to select the call channel of the se-
lected channel group. Each channel group may have an independent call channel after and call channel number appear. programming a call channel. Push [CH/WXDUAL] to return to the condition before se-
lecting call channel, or push [Y]/[Z] to select an operating channel. Push for 1 sec. 2 3 5
!IC-M302_draft.qxd 03.9.1 6:02 PM Page 6 (1,1) New2001 3 BASIC OPERATION U.S.A.,Canadian and international channels There are 57 U.S.A., 61 Canadian and 57 international chan-
nels.These channel groups may be specied for the operating area. q Push [CH/WXDUAL] to select a regular channel. If a weather channel appears, push [CH/WXDUAL] again. w Push both [Y] and [Z] to change the channel group, if necessary. U.S.A., International (INT) and Canadian channels can be se-
lected in sequence. e Push [Y] or [Z] to select a channel. DUP appears for duplex channels. A appears for simplex channels. Weather channels There are 10 weather channels. Used for monitoring weather channels from the NOAA (National Oceanographic and At-
mospheric Administration) broadcasts. The transceiver can detect a weather alert tone on the se-
lected weather channel while receiving the channel, during standby on a regular channel or while scanning. (p. 13) q Push [CH/WXDUAL] once or twice to select a weather channel. WX appears when a weather channel is selected. WX ALT appears when the weather alert function is in use.
(p. 13) w Push [Y] or [Z] to select a channel. U.S.A. channels Push and Canadian channels International channels 6 Push once or twice When weather alert is OFF. When weather alert is ON.
!IC-M302_draft.qxd 03.9.1 6:02 PM Page 7 (1,1) New2001 I Receiving and transmitting CAUTION: Transmitting without an antenna may dam-
age the transceiver. q Rotate [VOL] 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 To change the channel group, push both [Y] and [Z]. (p. 6) r Push [Y]/[Z] to select the desired channel. (p. 6) When receiving a signal, appears and audio is emitted from the speaker. Further adjustment of [VOL] may be necessary at this point. t Push [HI/LO] on the microphone to select the output power if necessary. LOW appears when low power is selected. Choose high power for longer distance communications. Some channels are for low power only. y Push and hold [PTT] to transmit, then speak into the mi-
crophone (M). appears. Channel 70 cannot be used for transmission (for GMDSS use). u Release [PTT] to receive. BASIC OPERATION 3 Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83 CAN-
NOT be lawfully used by the general public in U.S.A. wa-
ters. IMPORTANT: To maximize the readability of your trans-
mitted signal, pause a few sec. after pushing [PTT], hold the microphone 2 to 4 inches (5 to 10 cm) from your mouth and speak to M at a normal voice level. 3 q y u M re w r t 7
!IC-M302_draft.qxd 03.9.1 6:02 PM Page 8 (1,1) New2001 3 BASIC OPERATION I Call channel programming The call channel is used to select Channel 9, however, you can program your most often-used channels in each channel group for quick recall. q Push both [Y] and [Z] one or more times to select the de-
sired channel group (U.S.A., International, Canada) to be programmed. w Push [169] for 1 sec. to se-
lect the call channel of the selected channel group. CALL and call channel number appear. e Push [169] again for 3 sec. (until a long beep changes to 2 short beeps) to enter call channel pro-
gramming condition. Channel number starts blinking. r Push [Y]/[Z] to select the desired channel. t Push [169] to program the displayed channel as the call channel. Push [CH/WXDUAL] to can-
cel. The channel number stops blinking. 8 I Channel names Memory channels can be tagged with alphanumeric names of up to 10 characters each. Capital letters, small letters (except f, j, p, s, y, x, z), 0 to 9, some symbols (= + . /) and space can be used. q Select the desired memory channel. Cancel dual watch, tri-watch or scan in advance. w While pushing [CH/WX DUAL], push [169] to edit the channel name. A cursor and the first char-
acter starts blinking alter-
nately. e Select the desired character by pushing [Y]/[Z]. r Push [CH/WXDUAL] or [169] for cursor movement. t Repeat steps e and r to input all characters. y Push [DSCPOS] to set the channel name. u Repeat steps q to y to program other memory channel names, if desired. I Microphone lock function The microphone lock function electrically locks the [Y]/[Z]
and [HI/LO] switches on the supplied microphone. This pre-
vents accidental channel changes and function access. While pushing [HI/LO] on the microphone, turn power ON to toggle the lock function ON and OFF.
!IC-M302_draft.qxd 03.9.1 6:02 PM Page 9 (1,1) DUAL WATCH/TRI-WATCH 4 I Description Dualwatch monitors Channel 16 while you are receiving another channel; tri-watch monitors Channel 16 and the call channel while receiving another channel. DUALWATCH/TRI-WATCH SIMULATION I Operation q Select the desired operating channel. w Push [SCNDUAL] for 1 sec. to start dualwatch or tri-watch
(depending on SET mode setting). A beep tone sounds when a signal is received on Channel 16. e To cancel dualwatch/tri-watch, push [SCNDUAL] again. blinks during dualwatch;
blinks during tri-watch. Call channel
[Example]:
Operating dualwatch on INT channel 25 Operating INT channel 25 tri-watch on Dualwatch Tri-watch If a signal is received on Channel 16, dualwatch/tri-watch pauses on Channel 16 until the signal disappears. If a signal is received on the call channel during tri-watch, tri-watch becomes dualwatch until the signal disappears. To transmit on the selected channel during dualwatch/tri-
watch, push and hold [PTT]. Tri-watch starts. Tri-watch starts. Signal is received on Channel 16 takes priority. Signal is received on call channel. Dualwatch resumes after the signal disappears. Signal is received on Channel 16 takes priority. Tri-watch resumes after the signal disappears. 3 4 9
!IC-M302_draft.qxd 03.9.1 6:02 PM Page 10 (1,1) New2001 5 SCAN OPERATION I Scan types Scanning is an efcient way to locate signals quickly over a wide frequency range. The transceiver has priority scan and normal scan. When the weather alert function is in use, the selected weather channel is checked while scanning. (p. 13) Set the tag channels (scanned channel) before scanning. Clear the tag channels which inconveniently stop scanning, such as digital communication use. Choose priority or normal scan in SET mode. (p. 13) PRIORITY SCAN NORMAL SCAN CH 01 CH 02 CH 01 CH 02 CH 06 CH 16 CH 03 CH 06 CH 03 CH 05 CH 04 CH 05 CH 04 Priority scan searches through all tag channels in sequence while monitoring Channel 16. When a signal is detected on Channel 16, scan pauses until the signal disappears; when a signal is detected on a channel other than Channel 16, scan becomes dualwatch until the signal disappears. Normal scan, like priority scan, searches through all tag channels in sequence. However, unlike priority scan, Chan-
nel 16 is not checked unless Channel 16 is set as a tag channel. 10
!IC-M302_draft.qxd 03.9.1 6:02 PM Page 11 (1,1) New2001 SCAN OPERATION 5 I Setting tag channels For more efficient scanning, add desired channels as tag channels or clear the tag for unwanted channels. Non-tag channels will be skipped during scanning. Tag chan-
nels can be assigned to each channel group (USA, INT, CAN) independently. I Starting a scan Set scan type (priority or normal) and scan resume timer in advance, using SET mode. (p. 13) q Set tag channels as described at left. w Make sure the squelch is closed to start a scan. e Select the desired channel group (USA, CAN, INT) by 5 q Select the desired channel group (USA, INT, CAN) by pushing both [Y] and [Z], if desired. pushing both [Y] and [Z], if desired. w Select the desired channel to set as a tag channel. e Push [SCANTAG] for 1 sec. to set the displayed channel as a tag channel. appears in the function display. r To cancel the tag channel setting, push [SCANTAG] for 1 sec. disappears. Clearing all tag channels in the selected channel group While pushing [HI/LO] on the microphone, push [SCANTAG]
for 3 sec. to clear all tag channels in the selected channel group. r Push [SCANTAG] to start priority or normal scan. or appears in the function display. When a signal is detected, scan pauses until the signal disap-
pears or resumes after pausing 5 sec. according to set mode setting. (Channel 16 is still monitored during priority scan.) Push [Y] or [Z] to check the scanning tag channels, to change the scanning direction or resume the scan manually. on channel name indicator blinks and a beep tone sounds when a signal is received on Channel 16 during priority scan. t To stop the scan, push [SCANTAG].
[Example]: Starting a normal scan. Scan starts. When a signal is received. Push 11
!IC-M302_draft.qxd 03.9.1 6:02 PM Page 12 (1,1) New2001 6 SET MODE I Set mode programming Set mode is used to change the conditions of the trans-
ceivers functions: scan type (normal or priority), scan resume timer, weather alert, dual/tri-watch, DSC watch, transceivers beep tone and Auto ACK. Available functions may differ depending on dealer setting. D SET mode operation q Turn power OFF. w While pushing [169], turn power ON to enter SET mode. appears on channel name indicator. e After the display appears, release [169]. r Push [169] to select the desired item, if necessary. t Push [Y]/[Z] to select the desired condition of the item. y Turn power OFF, then ON again to exit set mode. 12 D SET MODE CONSTRUCTION Scan mode Scan resume timer Starting item Weather alert Push Auto acknowledgement Dual/tri watch Beep tone DSC watch
!IC-M302_draft.qxd 03.9.1 6:02 PM Page 13 (1,1) New2001 I SET mode items D Scan type The transceiver has 2 scan types: normal scan and priority scan. Normal scan searches all tag channels in the selected channel group. Priority scan searches all tag channels in se-
quence while monitoring Channel 16. SET MODE 6 DD Weather alert An NOAA broadcast station transmits a weather alert tone be-
fore important weather information. When the weather alert function is turned ON, the transceiver detects the alert, then the WX ALT indicator blinks until the transceiver is operated. The previously selected (used) weather channel is checked any time during standby or while scanning. WX ALT appears instead of WX indication when the function is set ON. 6 Normal scan (default) Priority scan DD 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 has been re-
ceived on channels except for Channel 16. Weather alert OFF (default) Weather alert ON DD Dual/Tri-watch This item can be selected as dual watch or tri-watch. (p. 9) Scan timer OFF (default) Scan timer ON Dual watch (default) Tri-watch 13
!IC-M302_draft.qxd 03.9.1 6:02 PM Page 14 (1,1) New2001 6 SET MODE DD DSC watch DSC watch monitors Channel 70 while you are receiving an-
other channel. If a distress signal is received on Channel 70, the transceiver monitors Channel 16 and 70 alternately until the distress sig-
nal disappears. If a signal is received on another channel, DSC watch pauses until the signal disappears. This function may not be available for some channel groups depending on dealer setting. DSC watch OFF (default) DSC watch ON DD 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. Beep tone ON (default) Beep tone OFF 14 DD Auto acknowledgement The transceiver automatically transmits position reply or po-
sition report reply when a position request or position report call is received, respectively when this function is turned ON. Auto acknowledgement OFF (default) Auto acknowledgement ON
!IC-M302_draft.qxd 03.9.1 6:02 PM Page 15 (1,1) TROUBLESHOOTING 7 PROBLEM POSSIBLE CAUSE SOLUTION REF. The transceiver does not turn ON. No sound from speaker. Squelch level is too deep. Bad connection to the battery pack. Check the connection to the transceiver. p. ?
Volume level is too low. Speaker has been exposed to water. Some channels are for low power or re-
ceive only. Set squelch to the threshold point. Set [VOL] to a suitable level. Drain water from the speaker. Change channels. p. 7 p. 7 pgs. 5, 6, 16 p. 7 6 7 Transmitting is impossi-
ble, or high power can not be selected. Scan does not start. No beeps. Distress call cannot be transmitted. The output power is set to low. Push [HI/LO] on the microphone to select high power. TAG channels are not programmed. Beep tones are turned OFF. The squelch is open. MMSI (DSC self ID) code is not pro-
Set the desired channels as TAG channels. p. 11 p. 14 Turn the beep tone ON in SET mode. p. 7 Set squelch to the threshold point. Program the MMSI (DSC self ID) code. p. ?
grammed. 15
!IC-M302_draft.qxd 03.9.1 6:02 PM Page 16 (1,1) New2001 8 CHANNEL LIST New2001 Channel number USA INT 01 02 03 Frequency (MHz) CAN Transmit Receive 156.050 160.650 01 156.050 156.050 156.100 160.700 156.150 160.750 156.150 156.150 156.200 160.800 04A 156.200 156.200 156.250 160.850 05A 156.250 156.250 156.300 156.300 06 156.350 160.950 07A 156.350 156.350 156.400 156.400 08 156.450 156.450 09 156.500 156.500 10 11 156.550 156.550 12 156.600 156.600 13*1 156.650 156.650 14 156.700 156.700 15*1 156.750 156.750 16 156.800 156.800 17*1 156.850 156.850 156.900 161.500 18A 156.900 156.900 156.950 161.550 01A 03A 05A 06 07A 08 09 10 11 12 13*2 14 15*2 16 17*1 18A 02 03 04 05 06 07 08 09 10 11 12 13 14 15*1 16 17 18 19 23 22 21 20 INT 22A 21A 24 25 23A 24 25 Channel number Frequency (MHz) CAN Transmit Receive USA 19A 156.950 156.950 19A 20 20*1 157.000 161.600 20A 157.000 157.000 157.050 161.650 21 21A 157.050 157.050 21b Rx only 161.650 157.100 161.700 22A 157.100 157.100 157.150 161.750 23 157.150 157.150 157.200 161.800 24 25 157.250 161.850 25b Rx only 161.850 157.300 161.900 26 27 157.350 161.950 28 157.400 162.000 28b Rx only 162.000 60 156.025 160.625 156.075 160.675 61A 156.075 156.075 156.125 160.725 62A 156.125 156.125 156.175 160.775 156.175 156.175 156.225 160.825 26 27 28 26 27 28 60 61 61A 63A 64 62 63 64 Channel number USA 64A INT Channel number USA 83A INT Frequency (MHz) CAN Transmit Receive 64A 156.225 160.825 156.275 160.875 65A 156.275 156.275 156.325 160.925 156.325 156.325 66A*1 156.375 156.375 67 156.425 156.425 68 69 156.475 156.475 70*3 156.525 156.525 156.575 156.575 71 72 156.625 156.625 156.675 156.675 73 74 156.725 156.725 77*1 156.875 156.875 156.925 161.525 78A 156.925 156.925 156.975 161.575 79A 156.975 156.975 157.025 161.625 80A 157.025 157.025 157.075 161.675 81A 157.075 157.075 157.125 161.725 82A 157.125 157.125 157.175 161.775 83 65A 66A 67*2 68 69 70*3 71 72 73 74 77*1 78A 79A 80A 81A 82A 65 65A 66 66A 67 68 69 70*3 71 72 73 74 77 78 79 80 81 82 83 85 Frequency (MHz) CAN Transmit Receive 83A 157.175 157.175 83b Rx only 161.775 157.225 161.825 84 157.225 157.225 157.275 161.875 157.275 157.275 157.325 161.925 157.325 157.325 157.375 161.975 157.375 157.375 157.425 162.025 157.425 157.425 86 87 88 84 85 86 87 88 84 84A 85 85A 86 86A 87 87A 88 88A WX channel 1 2 3 4 5 6 7 8 9 10 Frequency (MHz) Transmit Receive RX only 162.550 162.400 RX only 162.475 RX only 162.425 RX only 162.450 RX only 162.500 RX only 162.525 RX only 161.650 RX only RX only 161.775 163.275 RX only
*1Low power only.
*2Momentary high power.
*3Receive only. NOTE: Simplex channels, 3, 21, 23, 61, 64, 81, 82 and 83 CANNOT be lawfully used by the general public in U.S.A. waters. 16
!IC-M302_draft.qxd 03.9.1 6:02 PM Page 17 (1,1) New2001 SPECIFICATIONS AND OPTIONS 9 I Options MB-69 FLUSH MOUNT For mounting the transceiver to a panel. MB-92 DUST COVER For mounting the transceiver to a front panel to avoid expo-
sure the keys and knobs to water when the transceiver is not used. I Specications General Frequency coverage
Transmit Receive Mode Channel spacing Current drain (at 13.8 V) Power supply requirement Frequency stability Dimensions
(Projection not included) Weight Transmitter Output power Modulation system Max. frequency deviation Spurious emissions 156.025157.425 MHz 156.050163.275 MHz
: FM (16K0G3E) DSC(16K0G2B)
: 25 kHz
: TX high Max. audio
: 13.8 V DC
: 10 ppm (20C to +60C;4F to +140F)
: 153(W) 67(H) 141.6(D) mm 6 1/32(W) 2 5/8(H) 5 9/16(D) in
: 825 g ; 1.8 lb 5.5 A max. 1.5 A max.
: 25 W and 1 W
: Variable reactance frequency modulation
: 5.0 kHz
: Less than 70 dB Receiver
: Double conversion superheterodyne Receive system
: Less than 0.22V (typical) Sensitivity (12 dB SINAD)
: Less than 0.22V (typical) Squelch sensitivity Intermodulation rejection ratio
: More than 70 dB Spurious response rejection ratio : More than 70 dB
: More than 70 dB Adjacent channel selectivity
: More than 4.5W at 10% distortion with a 4 Audio output power load All stated specications are subject to change without notice or obligation. 8 9 17
!IC-M302_draft.qxd 03.9.1 6:02 PM Page 18 (1,1) New2001 A-6308D-1US Printed in Japan 2003 Icom Inc. 1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003 Japan