Icom IC-M73 Instruction Manual
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Icom IC-M73 Instruction Manual

Vhf marine transceiver
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INSTRUCTION MANUAL
VHF MARINE TRANSCEIVER
iM73
iM73EURO
This device complies with Part 15 of the FCC Rules. Opera-
tion is subject to the condition that this device does not cause
harmful interference.

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  • Page 1 INSTRUCTION MANUAL VHF MARINE TRANSCEIVER iM73 iM73EURO This device complies with Part 15 of the FCC Rules. Opera- tion is subject to the condition that this device does not cause harmful interference.

  • Page 2: Important

    ☞ Submersible construction Thank you for purchasing this Icom product. The IC-M73/IC- B u i l t t o u g h t o w i t h s t a n d t h e p u n i s h i n g m a r i n e...

  • Page 3: Precaution

    Icom, Icom Inc. and the Icom logo are registered trademarks of Icom Incorporated (Japan) in the United States, the United Kingdom, Germany, France, Spain, Russia and/or other countries.

  • Page 4: Radio Operator Warning

    RADIO OPERATOR WARNING FAILURE TO OBSERVE THESE LIMITS MAY ALLOW Icom requires the radio operator to meet the THOSE WITHIN THE MPE RADIUS TO EXPERIENCE RF FCC Requirements for Radio Frequency Expo- RADIATION ABSORPTION WHICH EXCEEDS THE FCC sure. An omnidirectional antenna with gain not MAXIMUM PERMISSIBLE EXPOSURE (MPE) LIMIT.

  • Page 5: Avertissement Pour Les Opérateurs Radio

    AVERTISSEMENT POUR LES OPÉRATEURS RADIO Icom exige que l'opérateur radio se conforme aux LE NON-RESPECT DE CES LIMITES PEUT CAUSER, POUR LES exigences de la FCC en matière d'exposition aux PERSONNES SITUÉES DANS LE RAYON D'EXPOSITION MAXI- radiofréquences. Une antenne omnidirectionnelle MALE ADMISSIBLE, UNE ABSORPTION DE RAYONNEMENT DE dont le gain ne dépasse pas 9dBi doit être fixée...

  • Page 6: Fcc Information

    Germany Slovenia Greece Spain CAUTION: Changes or modifications to this device, not ex- Hungary Sweden pressly approved by Icom Inc., could void your authority to Iceland Switzerland operate this device under FCC regulations. Ireland Turkey Italy United Kingdom...

  • Page 7: In Case Of Emergency

    IN CASE OF EMERGENCY RECOMMENDATION C L E A N T H E T R A N S C E I V E R T H O RO U G H LY W I T H If your vessel requires assistance, contact other vessels and FRESH WATER after exposure to saltwater, and dr y the Coast Guard by sending a distress call on Channel 16.

  • Page 8: Table Of Contents

    TABLE OF CONTENTS FOREWORD ................. i ■ Starting a scan ............15 6 DUALWATCH/TRI-WATCH ..........16 IMPORTANT ................i EXPLICIT DEFINITIONS ............i ■ Description ..............16 FEATURES ................i ■ Operation..............16 PRECAUTION ..............ii 7 FUNCTION MODE OPERATION ........17 RADIO OPERATOR WARNING .......... iii ■...

  • Page 9: Operating Rules

    OPERATING RULES Priorities (2) OPERATOR’S LICENSE A Restricted Radiotelephone Operator Permit is the license • Read all rules and regulations pertaining to call priorities, most often held by small vessel radio operators when a radio and keep an up-to-date copy handy. Safety and distress is not required for safety purposes.

  • Page 10: Supplied Accessories And Attachments

    SUPPLIED ACCESSORIES AND ATTACHMENTS ■ Supplied accessories ■ Attachments The following accessories are supplied: Qty. Flexible antenna q Handstrap ............... 1 Connect the supplied flexible w Battery charger (with two screws) ......... 1 antenna to the antenna connector. e Belt clip (with two screws)..........1 CAUTION: Transmitting without r Li-Ion battery pack ............
  • Page 11 SUPPLIED ACCESSORIES AND ATTACHMENTS D Battery pack D Belt clip q Attach the battery pack into the transceiver as below. Attach the belt clip to the transceiver as illustrated below. Supplied screws w Lock the battery pack with the latch. CAUTION: NEVER attach or detach the battery pack when wet.

  • Page 12: Panel Description

    PANEL DESCRIPTION ■ Front, top and side panels q VOLUME CONTROL [VOL] Turns power ON and adjusts the audio level. w PTT SWITCH [PTT] Hold down to transmit; release to receive. e MONITOR KEY [ • Manually opens the squelch for monitoring the channel Function while held down.
  • Page 13 PANEL DESCRIPTION u CHANNEL/WEATHER CHANNEL KEY !0 FAVORITE (TAG) KEY [FAV•★] [CH/WX•U/I/C] (IC-M73), [CH] (IC-73EURO) • Push this key to sequentially select the Favorite (TAG) • Selects and toggles the regular channels and weather channels, while ignoring untagged channels, in a channel* when pushed.

  • Page 14: Function Display

    PANEL DESCRIPTION ■ Function display r DUALWATCH/TRI-WATCH INDICATORS (p. 16) “DUAL” blinks during dualwatch; “TRI” blinks during tri- watch. t VOX INDICATOR (p. 12) Appears when the VOX function using is available. Ask your dealer for details. y MONITOR INDICATOR (p. 10) Appears when the monitor function is activated.
  • Page 15 PANEL DESCRIPTION !2 CALL CHANNEL INDICATOR (p. 7) Appears when the call channel is selected. !3 CHANNEL GROUP INDICATOR (p. 8) “USA” appears when U.S.A.; “INT” appears when International; “CAN*” appears when Canadian channel group is selected. *Available with the U.S.A. and EXP versions only !4 WEATHER CHANNEL/WEATHER ALERT INDICATORS (p.

  • Page 16: Basic Operation

    BASIC OPERATION ■ Channel selection D Channel 9 (Call channel) IMPORTANT!: Prior to using the transceiver for the first time, fully charge the battery pack. This will help maxi- Channel 9 is the leisure-use call channel. Each regular mize the capability and life of the battery. To avoid dam- channel group has separate call channels.
  • Page 17 BASIC OPERATION D U.S.A., International, Canadian and ATIS For German and Holland versions channels The IC-M73/IC-M73EURO have U.S.A.* , International, Hold down Canadian* and ATIS* channels. You must select the proper channels for the operating area. U.S.A., EXP, China and U.K. versions only for 1 sec.
  • Page 18 Push [CH/WX•U/I/C] to return to the condition before selecting the weather channel group. ✔ CONVENIENT! The IC-M73 can detect a weather alert tone on the selected weather channel while in another channel (when the power or during scanning. See the “SET save function is turned ON) mode items”...

  • Page 19: Receiving And Transmitting

    ➥ Rotate [VOL] to set the volume level. ➥ Push [ ] , and push [Y]/[Z] to set the squelch level. IC-M73 has a time-out timer function. This timer cuts a e Push [Y]/[Z] to select the desired channel. transmission OFF after 5 min. of continuous transmission.

  • Page 20: Call Channel Programming

    BASIC OPERATION ■ Call channel programming ■ Lock function The call channel key is used to select Channel 9 by default, This function electronically locks all keys (except for [PTT], to prevent accidental channel changes and [H/L•LOCK]) however, you can program your most often-used channel in each channel group for quick recall.

  • Page 21: Adjusting The Squelch Level

    BASIC OPERATION ■ Adjusting the squelch level ■ AquaQuake water draining function To adjust the IC-M73/IC-M73EURO’s squelch level, use the The IC-M73/IC-M73EURO uses a new technology to clear [Y]/[Z] keys as desired below. In order to receive signals water away from the speaker grill: AquaQuake. AquaQuake...

  • Page 22: Scan Operation

    SCAN OPERATION ■ Scan types Set the Favorite channels before scanning. Scanning is an efficient way to quickly locate signals over a (scanned channel) Clear those Favorite channels which are not needed or in- wide frequency range. The transceiver has a priority scan conveniently stop scanning, such as digital communications.

  • Page 23: Setting Favorite Channels

    SCAN OPERATION ■ Setting Favorite channels ■ Starting a scan For more efficient scanning, add desired channels as Favor- Set the weather alert function, priority scan function, scan ite channels or clear the Favorite for unwanted channels. resume timer and auto scan function in advance, using the Untagged will be skipped during scanning.

  • Page 24: Dualwatch/Tri-Watch

    DUALWATCH/TRI-WATCH ■ Description ■ Operation Dualwatch monitors Channel 16 while you are receiving q Select the desired operating channel. another channel; tri-watch monitors Channel 16 and the call w Hold down [SCAN•DUAL] for 1 second to start dualwatch channel while receiving another channel. or tri-watch (depending on the SET mode setting;...

  • Page 25: Function Mode Operation

    FUNCTION MODE OPERATION ■ About the function mode D Entering the function mode There are 7 transceiver functions in the function mode: Play q Turn power ON. back function, Manual recording function, Automatic record- w Push [F] to enter the function mode. ing function, backlight function, channel naming function, •...

  • Page 26: Play Back Function

    FUNCTION MODE OPERATION ■ Play back function This transceiver has the two voice recorders. q Push [F] to enter the function mode. One is the manual recording function which can record for • “PLAY” appears. 30 seconds, the other is the automatic recording function w Push [H/L•KEY] to enter the play back selection mode, which can record the end of 60 seconds of the receiving sig- and then push [Y]/[Z] to select the desired play back...

  • Page 27: Manual Recording Function

    FUNCTION MODE OPERATION ■ Manual recording function You can record the received signal whenever you want by q Push [F] to enter the function using the manual recording function. mode, and then push [Y]/[Z] This function can record the receiving signal for 30 seconds. to select the manual recording function.

  • Page 28: Automatic Recording Function

    FUNCTION MODE OPERATION ■ Automatic recording function When this function turns ON, the transceiver automatically q Push [F] to enter the function records the receiving signal into the memory. mode, and then push [Y]/[Z] to A maximum recording length of 60 seconds can be recorded select the automatic recording into the memory.

  • Page 29: Backlighting Function

    FUNCTION MODE OPERATION ■ Backlighting function ■ Channel naming function The IC-M73/IC-M73EURO has a capability to assign up to This function is convenient for nighttime operation. The back- 10-character channel names for each operating channel, lighting can be turned OFF in the SET mode. (p. 19) including each weather channel.

  • Page 30: Opening Comment Entry Function

    ■ Opening comment entry function D Channel name programming q Push [Y]/[Z] to select a channel to The IC-M73/IC-M73EURO has a capability to assign up to program. 10-character opening comments. • Hold down [CH/WX•U/I/C] for 1 second You may replace the factory-set opening comment with to select a channel group, if necessary.

  • Page 31: Atis Code Programming

    FUNCTION MODE OPERATION ■ ATIS code programming The 10-digit ATIS code can be programmed and confirmed e Push [Y]/[Z] to select a character. with the following operation. r Push [CH/WX• U/I/C] to move to the right; then push [Y]/[Z] to select a The ATIS code programming is not necessary and confi character.
  • Page 32 FUNCTION MODE OPERATION e Push [Y]/[Z] to select a char- D ATIS code confirmation acter. (When the ATIS code has been programmed) r Push [CH/WX• U/I/C] to move q Push [F] to enter the function mode, and then push [Y]/ to the right;...

  • Page 33: Set Mode

    SET MODE ■ SET mode programming D SET mode operation SET mode is used to change the condition of 17 transceiver q Turn power OFF. functions: beep tone function, weather alert function, scan w While holding down [ ] , turn power ON to enter the type, scan resume timer, auto scan function, dual/tri-watch SET mode.

  • Page 34: Set Mode Items

    ON, any detected weather scan pauses for 5 seconds after receiving a signal and then alert will make the IC-M73 activate a blinking “WXALT” alert resumes even if the signal has been received. indicator on the function display and repeatedly sound a beep tone.
  • Page 35 SET MODE D Auto scan function “ ” D Monitor key action “ ” The auto scan function starts the desired scan automatically The monitor key action cuts off the squelch function when no signal is received, and no operation is performed temporarily.
  • Page 36 SET MODE D LCD contrast selection “ ” D Channel name scroll type “ ” The contrast of the LCD can be selected from Hi (default) Selects the channel name/comment scroll type from 1 and 2. and Lo. • 1: The first 7 characters are displayed for 1 second (approx.) then scrolls.
  • Page 37 SET MODE D RX Noise Cancel function “ ” D RX bass boost function “ ” Set the Noise Cancel function for receive. Set the bass boost function for receive. OFF : Turns OFF the function. OFF : Turns OFF the function. : The Noise Cancel function reduces random noise compo- ON : The RX bass boost function boosts the level of the re- nents in the received signal to approximately one half.
  • Page 38 SET MODE D Automatic recording threshold level “ ” Set the automatic recording threshold level. : Set the threshold level to shallow. The weak signal will automatically record into the memory. : Set the threshold level to middle. : Set the threshold level to deep. The weak signal will not automatically record into the memory.

  • Page 39: Battery Charging

    • R DANGER! NEVER incinerate a used battery pack since internal battery gas may cause a rupture or explosion. • R DANGER! Use and charge only specified Icom battery • R DANGER! NEVER solder the battery terminals, or pack with Icom transceiver. Only Icom battery pack is NEVER modify the battery pack.
  • Page 40 ±0˚C to +45˚C (+32˚F to place with the temperature range as below; +113˚F). Icom recommends charging the battery at +20˚C –20˚C to +50˚C (–4˚F to +122˚F) (within a month) (+68˚F). The battery may heat up or rupture if charged out –20˚C to +35˚C (–4˚F to +95˚F)

  • Page 41: Supplied Battery Charger

    Battery charging ■ Supplied battery charger D Charging D BC-210 installation q Connect the AC adapter as shown below. • To a desktop • To a wall w Insert the battery pack with/without the transceiver into Supplied screws the charger. •...

  • Page 42: Optional Battery Chargers

    Battery charging ■ Optional battery chargers D AD-129 installation D Rapid charging with the BC-197+BC-157S or OPC-656 q Connect 8-pin connector of the each charger slots to the AD-129 desktop charger adapter’s plug. The optional BC-197 with the BC-157S will simultaneously w Install the adapter into the each charger slots in the charge up to 6 Li-ion battery packs.

  • Page 43: Optional Swivel Belt Clip

    OPTIONAL SWIVEL BELT CLIP ■ Attachment ■ Detachment q Screw the base clip to the Turn the transceiver upside down in the direction of the ➥ back of the transceiver arrow and pull out from the belt clip. Supplied screws using the two screws (sup- , as shown at right.

  • Page 44: Optional Speaker-Microphone

    OPTIONAL SPEAKER-MICROPHONE ■ HM-167 descriptions ■ Attachment Alligator type clip Insert the speaker-mic connector onto the [SP MIC] con- To attach the speaker-mic. nector and carefully screw it tight, as shown in the diagram to your shirt or collar, etc. below.
  • Page 45 TROUBLESHOOTING PROBLEM POSSIBLE CAUSE SOLUTION REF. The transceiver does not • The battery is depleted. • Recharge the battery pack. turn ON. 25–27 • Bad connection to the battery pack. • Check the connection to the transceiver. p. 3 N o s o u n d f r o m t h e •...

  • Page 46: Specifications

    SPECIFICATIONS • IC-M73 • Adjacent channel power : 70 dB General • Spurious emissions (typical) USA and EXP versions : –68 dBc • Frequency coverage AUS version : 0.25 µW Tx 156.025–157.425 MHz Rx 156.050–163.275 MHz (USA and EXP versions) Receiver Rx 156.300–162.025 MHz (AUS version)
  • Page 47 SPECIFICATIONS • IC-M73EURO Receiver General • Sensitivity (typical) : –4 dBµ emf at 20 dB SINAD • Squelch sensitivity (threshold) : –5 dBµ emf (typical) • Frequency coverage : Tx 156.000–161.450 MHz • Intermodulation rejection ratio : 68 dB Rx 156.000–163.425 MHz •...

  • Page 48: Vhf Marine Channel List

    VHF MARINE CHANNEL LIST For IC-M73EURO • International channels Frequency (MHz) Frequency (MHz) Frequency (MHz) Frequency (MHz) Frequency (MHz) Frequency (MHz) Transmit Receive Transmit Receive Transmit Receive Transmit Receive Transmit Receive Transmit Receive 156.050 160.650 156.550 156.550 157.050 161.650 156.075 160.675 156.575 156.575...
  • Page 49 VHF MARINE CHANNEL LIST For IC-M73EURO • USA channels (for U.K. version only) Frequency (MHz) Frequency (MHz) Frequency (MHz) Frequency (MHz) Frequency (MHz) Frequency (MHz) Transmit Receive Transmit Receive Transmit Receive Transmit Receive Transmit Receive Transmit Receive 156.050 156.050 156.600 156.600 157.100 157.100...
  • Page 50 VHF MARINE CHANNEL LIST For IC-M73 Channel number Frequency (MHz) Channel number Frequency (MHz) Channel number Frequency (MHz) Channel number Frequency (MHz) CAN Transmit Receive CAN Transmit Receive CAN Transmit Receive CAN Transmit Receive 156.050 160.650 157.275 161.875 19A 156.950 156.950 156.325 160.925...

  • Page 51: Options

    • FA-S64V flexible antenna Same as that supplied with the transceiver. D BELT CLIPS Icom optional equipment is designed for optimal perform- • MB-103 belt clip ance when used with this transceiver. We are not respon- The same as supplied with the transceiver.
  • Page 52 MEMO...
  • Page 53 MEMO...
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  • Page 55 MEMO...
  • Page 56 < Intended Country of Use > A-7070D-1EX Printed in Japan 2013 Icom Inc. © 1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan Printed on recycled paper with soy ink.

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