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INSTRUCTION MANUAL

iM73

VHF MARINE TRANSCEIVER

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.

iM73EURO

IC-M73

IC-M73EURO

Summary of Contents for IC-M73

Page 1: ...TION MANUAL iM73 VHF MARINE TRANSCEIVER 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 iM73EURO IC M73 IC M73EURO ...

Page 2: ...t the IC M73 IC M73EURO s submersible con struction meets IPX8 ratings of the International Stan dard IEC 60529 2001 In addition the speaker grill structure with a water self draining Aquaquake function is helpful for easily remov ing rain or seawater Dualwatch and Tri watch functions Convenient functions that allow you to monitor the dis tress channel Ch 16 while receiving one other channel of yo...

Page 3: ...er will result in serious damage to the transceiver The transceiver meets IPX8 requirements for waterproof pro tection However once the transceiver has been dropped wa terproof protection cannot be guaranteed because of possible damage to the transceiver s case or the waterproof seal use or place the transceiver in direct sunlight or in areas with temperatures below 20 C 4 F or above 60 C 140 F fo...

Page 4: ...DO NOT operate the radio without a proper antenna attached as this may damaged the radio and may also cause you to exceed FCC and IC RF exposure limits A proper antenna is the antenna supplied with this radio by the manufacturer or antenna specifically authorized by the manufacturer for use with this radio DO NOT transmit for more than 50 of total radio use time 50 duty cycle Transmitting more tha...

Page 5: ...riée y soit fixée car ceci risque d endommager la radio et causer une exposition supérieure aux limites établies par la FCC et d IC L antenne appropriée est celle qui est fournie avec cette radio par le fabricant ou une antenne spécialement autorisée par le fabricant pour être utilisée avec cette radio NE PAS émettre pendant plus de 50 du temps total d utilisation de l appareil 50 du facteur d uti...

Page 6: ...sted and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide rea sonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequen cy energy and if not installed and used in accordance with the instruction manual may...

Page 7: ... of the distress and assistance required 6 Give any other information which might facilitate the rescue RECOMMENDATION after exposure to saltwater and dry it before operation Otherwise the transceiver s keys switches and controllers may become inoperable due to salt crystallization wash the transceiver in water if there is any reason to sus pect the waterproofing may not be effective For example i...

Page 8: ... Dutch version 14 15 Scan types 14 Setting Favorite channels 15 Starting a scan 15 6 DUALWATCH TRI WATCH 16 Description 16 Operation 16 7 FUNCTION MODE OPERATION 17 24 About the function mode 17 Manual recording function Depending on versions 18 Automatic recording function Depending on versions 19 Play back function Depending on versions 20 Channel naming function 21 Opening comment entry functio...

Page 9: ...h is your craft s identification for radio purposes 2 OPERATOR S LICENSE A Restricted Radiotelephone Operator Permit is the license most often held by small vessel radio operators when a ra dio is not required for safety purposes If required the Restricted Radiotelephone Operator Permit must be posted or kept with the operator If required only a licensed radio operator may operate a transceiver Ho...

Page 10: ...n antenna may damage the transceiver D D Handstrap Pass the handstrap through the loop on the top corner of the transceiver as illustrated to the left This facilitates carrying the transceiver Flexible antenna Cigarette lighter cable Handstrap Not supplied or different type may be supplied depending on the version May not be supplied depending on the version Battery Charger with two screws Belt cl...

Page 11: ... NEVER remove or attach the battery pack when the transceiver is wet or soiled This may result in water or dust getting into the transceiver and battery pack and may result in them being damaged Be careful The latch is tightly locked so use caution when releasing it DO NOT use your finger nail Use the edge of a coin or screwdriver tip to carefully release it D D Belt clip Attach the belt clip to t...

Page 12: ... adjust the squelch level with Y Z p 13 While holding down this switch turn the ON power to enter the SET mode p 25 r CHANNEL 16 KEY 16 C Selects Channel 16 when pushed p 8 Selects the Call channel when pushed for 1 second p 8 Enters the Call channel write mode when the Call channel is selected and this key is held down for 3 seconds p 12 t FUNCTION KEY F Enters the Function mode when pushed p 17 ...

Page 13: ...N KEYS Y Z Selects the operating channel pp 8 10 Selects the SET mode option of the item p 25 Selects the SET mode item when pushed along with p 25 Checks Favorite TAG channels or changes the scanning direction during a scan p 15 Selects the Function mode item p 17 o TRANSMIT POWER LOCK KEY H L LOCK Selects high middle or low power when pushed p 11 Toggles the lock function ON OFF when held down f...

Page 14: ... when a duplex channel is selected y p 12 Appears when the monitor function is ac tivated u p 19 Appears when the automatic recording is activated This may not appear depend ing on the transceiver version i Appears while the receiving audio is recording pp 18 19 This may not appear depending on the transceiver ver sion o Indicates or scrolls the operating channel name comment or ATIS code pp 21 23...

Page 15: ...pears when ATIS 3 channel group is selected 1 Only USA UK EXP CHN and AUS versions 2Only USA EXP and CHN versions 3 Only HOL version 4 WEATHER CHANNEL WEATHER ALERT ICONS p 10 appears when the Weather channel group is selected appears when the Weather alert function is activated Selectable on only the USA EXP and AUS versions 5 TRANSMIT POWER ICONS p 11 LOW appears when low power is selected MID a...

Page 16: ...C to select Channel 16 w Push CH WX U I C to return to the condition before selecting Channel 16 or push Y Z to select the operating channel Push D D Call channel Each regular channel group has separate leisure use call channels The Call channel is monitored during Tri watch The Call channels can be reprogrammed p 12 and may be used to store your most often used channels in each channel group for ...

Page 17: ...annel If the weather channel appears push again w w Push YZ to select a channel DUP appears for duplex channels e e To change the channel group hold down for 1 second Repeat until you reach the desired channel group U S A channels International channels Hold down for 1 second Hold down for 1 second Hold down for 1 second Hold down for 1 second Hold down for 1 second For Dutch version For U S A Exp...

Page 18: ...d ministration The transceiver can automatically detect a weather alert tone on the selected weather channel or while scanning See the SET mode items on page 26 for details For only the USA EXP and AUS versions q q Push CH WX U I C to select the weather channel group w w Push Y Z to select a weather channel e e Push CH WX U I C to return to the screen before you selected the Weather channel group ...

Page 19: ...to conserve battery power choose high power for longer distance communications Some channels are for only low transmission t t Hold down to transmit and speak at your normal voice level The appears while transmitting Channel 70 cannot be used for transmission y y Release to receive To maximize the readability of your transmitted signal pause a second after pushing Hold the microphone 5 to 10 cm 2 ...

Page 20: ...l channel program ming mode The Call channel number to be pro grammed blinks r r Push YZ to select the desired channel t t Push to program the displayed channel as the Call channel The Call channel number stops blinking This function electronically locks all keys except for and to prevent accidental channel changes and function access Push for 1 second to turn the lock function ON or OFF Hold down...

Page 21: ... normal condition w Push again to return to normal operating mode Push Shows the squelch level Appears during squelch level adjustment AquaQuake water draining function The AquaQuake water draining function clears water away from the speaker grill Without this function water may muffle the sound coming from the speaker The transceiver emits a vibrating beep when this function is activated While ho...

Page 22: ...such as digital communica tions Choose priority or normal scan in the SET mode p 26 NORMAL SCAN CH 01 CH 02 WX CH 05 CH 04 CH 03 Previously selected weather channel when weather alert function is ON Normal scan like priority scan sequentially searches through all Favorite channels However unlike priority scan Channel 16 is not checked unless it is set as a Favorite channel PRIORITY SCAN WX CH 01 C...

Page 23: ...t set the weather alert function priority scan function scan resume timer and auto scan function using the SET mode pp 26 27 q Make sure the desired channel group e g USA CAN INT ATIS is selected Move between channel groups by re peatedly pushing CH WX U I C for 1 second at a time When the weather alert function is in use select the desired weather channel with CH WX U I C and Y Z For only the USA...

Page 24: ...h becomes Dualwatch when receiving a signal on the Call channel e To cancel Dualwatch Tri watch push SCAN DUAL again DUALWATCH TRI WATCH SIMULATION Dualwatch Tri watch Call channel Ch 88 Ch 16 Ch 88 Ch 16 Ch 88 Ch 9 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 become...

Page 25: ...F to enter the function mode PLAY Play back function appears When no key is pushed for 5 seconds the transceiver returns to its normal condition w w Push Y Z to select the desired item e e Push H L LOCK to select or decide the desired option of the item Some items exit the function mode when pushing H L LOCK r r To exit the function mode push F D FUNCTION MODE ITEMS Playback function Manual record...

Page 26: ...ing REC appears When the signal disappears the transceiver continues recording without audio e e Push F to stop the recording The recording will automatically stop after 30 seconds Manual recording mode appears REC appears while recording Example Manual recording Less than 30 seconds More than 30 seconds Example 20 seconds 30 seconds When receiving a signal for 30 seconds or less this function rec...

Page 27: ...hen the function is turned ON After pushing H L LOCK exits the function mode e e When a signal is received the transceiver automatically starts recording REC appears while recording The recording will automatically stop when the received signal dis appears or the received signal strength becomes weaker than the set threshold level in the set mode p 30 Automatic recording mode appears REC is appear...

Page 28: ...S Play back the automaticaliy re corded signal for 60 seconds e e Push H L LOCK to play back the recorded signal PL blinks To stop the play back push H L LOCK again DO NOT detach the battery pack while the transceiver is turned ON Otherwise the data could be lost or deleted Deleting a recorded signal While selecting the desired data to delete hold down FAV for 3 seconds until 2 short beeps sound B...

Page 29: ...t a channel group if nec essary w w Push F to enter the function mode and then push Y Z to select the channel naming function CH NAME appears e e Push H L LOCK to edit the chan nel name The 1st character of the currently pro grammed name blinks r r Push Y Z to select a character t t Push CH WX U I C to move to the right then push Y Z to se lect a character Push SCAN DUAL to move to the left y y Co...

Page 30: ...tion OC EDIT appears w w Push H L LOCK to edit the open ing comment The 1st character of the currently pro grammed comment blinks e e Push Y Z to select a character r r Push CH WX U I C to move to the right then push Y Z to se lect a character Pushing SCAN DUAL moves to left i i Continue until the desired charac ters have been entered then push H L LOCK to return to normal op eration Deleting the ...

Page 31: ... e e Push Y Z to select a number r r Push CH WX U I C to move to the right then push Y Z to se lect a number Push SCAN DUAL to move to the left t t After inputting the 10 digit ATIS code push H L LOCK to write the code into the memory then goes to the ATIS code confirma tion mode Deleting the ATIS code All clear While in the ATIS code editing mode push FAV to de lete D D ATIS code confirmation Whe...

Page 32: ... 27 Push any key other than PTT to turn ON the backlight ing The backlighting is automatical ly turned OFF after 5 seconds of inactivity q q Push F to enter the function mode and then push Y Z to select the backlighting function LIGHT appears w w Push H L LOCK to turn the func tion ON or OFF After pushing H L LOCK exits from the function mode Backlight mode appears ...

Page 33: ...tion q q Turn OFF power w w While holding down turn ON power to enter the SET mode The BEEP Beep tone function setting appears e e Push or push and Y Z to select the de sired item r r Push Y Z to select the desired option of the item t t To exit the SET mode push 16 C D D SET MODE ITEMS Beep tone function Weather alert function Priority scan Scan resume timer Auto scan start function Dual Tri watc...

Page 34: ... any time during standby or while scan ning when the power save function is activated appears when the function is turned ON Push Weather alert function OFF default Weather alert function ON D D Priority scan function Except for the HOL version the transceiver has 2 scan types normal OFF and priority ON scans Normal scan searches all Favorite TAG channels in the selected chan nel group Priority sc...

Page 35: ... cuts off the squelch function This key action contains PUSH Pu or HOLD Ho settings as shown below Pu PUSH After pushing for 1 second the squelch opens and audio is heard The squelch is held open while continuously holding down default Ho HOLD After pushing for 1 second the squelch opens and audio is heard even if is released To close the squelch push any key Push Push setting default Hold setting...

Page 36: ...sh Power save ON default Power save OFF D D Channel name scroll type Set the channel name comment scroll type to 1 or 2 1 The first 7 characters are displayed for approximately 1 sec ond then scrolls When the channel name or comment is 7 character or less it does not scroll default 2 The channel name or comment scrolls regardless of the num ber of characters after no name or comment blank is dis p...

Page 37: ...function for transmission The function may not be available depending on the transceiver version OFF Turns OFF the function ON The Noise Cancel function reduces random noise compo nents in the transmitted signal to one third Push TX noise cancel OFF default TX noise cancel ON D D RX bass boost function Set the bass boost function for reception The function may not be available depending on the tra...

Page 38: ...pending on the transceiver version 1 Set the threshold level to shallow Weak signals will automatically be recorded into memory 2 Set the threshold level to mid 3 Set the threshold level to deep Weak signals will not automati cally be recorded into memory Push Automatic recording threshold level 2 default Automatic recording threshold level 3 ...

Page 39: ...ing the bat tery in direct sunlight may cause the battery to rupture or catch fire Excessive temperatures may also degrade battery performance or shorten battery life R DANGER DO NOT expose the battery to rain snow seawater or any other liquids Do not charge or use a wet battery If the battery gets wet be sure to wipe it dry before using The battery by itself is not waterproof R DANGER NEVER incin...

Page 40: ... a cool dry place with the temperature range as below 20 C to 50 C 4 F to 122 F within a month 20 C to 35 C 4 F to 95 F within three months 20 C to 20 C 4 F to 68 F within a year D D Charging caution R DANGER NEVER charge the battery pack in areas with extremely high temperatures such as near fires or stoves inside a sun heated car or in direct sunlight In such environments the safety protection c...

Page 41: ...nsceiver into the charger The charge indicator lights orange e e Charge the battery pack approximately 2 5 hours de pending on the remaining power level The charge indicator lights green when charging is complete Transceiver Battery pack AC adapter Charger indicator OPC 515L for a 13 8 V power source or the CP 25H for a 12 V cigarette lighter socket can be used instead of the AC adapter CAUTION NE...

Page 42: ... are additionally required Charging time approximately 2 5 hours Six AD 129 charger adapters An AC adapter BC 157S or the DC power cable OPC 656 Desktop charger adapter 8 pin connector Supplied screws Battery pack The charger adapters are installed in each slot Transceiver Turn OFF power An AC adapter is not supplied with some versions AC adapter Connect to a DC power supply 12 to 16 V at least 7 ...

Page 43: ...nsceiv er e e Once the transceiver is locked in place it swivels Detaching Turn the transceiver upside down in the direction of the arrow and pull out from the belt clip R CAUTION HOLD THE TRANSCEIVER TIGHTLY WHEN HANGING OR DETACHING THE TRANSCEIVER FROM THE BELT CLIP Otherwise the transceiver may not be attached to the belt clip or swivelled properly if the transceiver is accidentally dropped an...

Page 44: ...low Be careful not to cross thread the connection Set the triangle mark to the front side CAUTION Attach the speaker microphone s connector securely to prevent accidental dropping or water intrusion in the connector Detaching Pull up the cap in the direction of the arrow to detach it Attaching Attach the cap in the direction of the arrow completely IMPORTANT KEEP the transceiver s SP MIC connec to...

Page 45: ...ls Recharge the battery pack Verify the battery voltage is correct Push H L LOCK to select high power Turn OFF the power leave it at room temperature for a while pp 11 12 40 42 pp 33 34 p 11 The displayed channel cannot be changed Lock function is activated Push H L LOCK for 1 second to cancel the function p 12 Scan does not start Favorite TAG channels are not programmed Set the desired channels a...

Page 46: ...nel power 70 dB Spurious emissions typical 68 dBc D D Receiver Sensitivity typical USA and EXP versions 0 22 µV 12 dB SINAD Squelch sensitivity at threshold typical 0 35 µV Intermodulation rejection ratio 70 dB typical Spurious response rejection ratio 70 dB typical Adjacent channel selectivity 70 dB typical Audio output power at 10 distortion with an 8 load 0 35 W typical External 0 7 W typical I...

Page 47: ...ange 10 C to 55 C Current drain at 7 4 V TX high 1 4 A approximately Max audio 0 45 A Power supply requirement 7 4 V DC nominal negative ground Frequency stability 10 ppm 10 C to 55 C Antenna impedance 50 nominal Dimensions approximately 52 5 W 125 H 30 D mm Projections not included 2 0 W 4 9 H 1 2 D inches Weight approximately 280 g 9 9 oz with BP 245N D D Transmitter Output power 5 W 3 W 1 W Mod...

Page 48: ...5 76 3 156 825 156 825 86 157 325 161 925 07 156 350 160 950 17 1 156 850 156 850 27 157 350 161 950 67 156 375 156 375 77 156 875 156 875 87 157 375 157 375 P4 2 161 425 161 425 88 157 425 157 425 08 156 400 156 400 18 156 900 161 500 28 157 400 162 000 68 69 156 425 156 425 78 156 925 161 525 09 156 450 156 450 19 156 950 161 550 37A 2 157 850 157 850 156 475 156 475 79 156 975 161 575 10 156 50...

Page 49: ... 156 325 156 975 156 975 157 375 161 975 156 750 156 750 157 250 161 850 156 375 156 375 157 025 157 025 157 375 157 375 156 250 156 250 156 800 156 800 157 300 161 900 156 425 156 425 157 075 157 075 157 425 162 025 156 300 156 300 156 850 156 850 157 350 161 950 156 475 156 475 157 125 157 125 157 425 157 425 161 425 161 425 156 350 156 350 156 900 156 900 157 400 162 000 RX Only 156 525 157 175...

Page 50: ...156 125 156 125 156 175 160 775 63 63A 156 175 156 175 64 156 225 160 825 64 64A 64A 156 225 156 225 156 275 160 875 65 65A 65A 156 275 156 275 65A 156 325 160 925 66 66A 66A 1 156 325 156 325 66A 67 1 67 156 375 156 375 67 21A 21A 157 050 157 050 USA 21 157 050 161 650 21 CAN Transmit Receive INT Channel number Frequency MHz 71 71 156 575 156 575 71 72 72 156 625 156 625 72 73 73 156 675 156 675 ...

Page 51: ...ing OPC 515L OPC 656 dc power cables Charges the battery pack using 13 8 V power source instead of the AC adapter OPC 515L For BC 210 OPC 656 For BC 197 D D BELT CLIPS MB 103 belt clip The same as supplied with the transceiver MB 86 swivel belt clip Belt clip for swivel type MB 96N F leather belt hanger D D OTHER OPTIONS HM 167 speaker microphone Full sized waterproof speaker microphone including ...

Page 52: ...stallation 33 Beep tone function 26 Belt clip 3 43 C Call channel 8 Call channel programming 12 Channel 16 8 Channel name programming 21 Channel name scroll type 28 Channel naming function 21 Channel selection 8 CHARGERS 43 Charging 33 Charging caution 32 COUNTRY CODE LIST v D DC CABLES 43 Description 16 Detaching 35 Dual Tri watch function 27 DUALWATCH TRI WATCH 16 E Entering the function mode 17...

Page 53: ...d charging with the BC 197 BC 157S or OPC 656 34 Receiver 38 39 Receiving and transmitting 11 RECOMMENDATION vi RX bass boost function 29 RX Noise Cancel function 29 S SCAN OPERATION 14 Scan resume timer 26 Scan types 14 Scrolling speed 28 SET MODE 25 SET MODE ITEMS 25 26 SET mode operation 25 SET mode programming 25 Setting Favorite channels 15 SPECIFICATIONS 38 Starting a scan 15 Supplied access...

Page 54: ...46 MEMO New2001 ...

Page 55: ...47 MEMO New2001 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ...

Page 56: ...ka 547 0003 Japan A 7070D 1EX q Printed in Japan 2013 Icom Inc New2001 Intended Country of Use AT FI IT PL GB RO BE FR LV PT IS TR CY DE LT SK LI HR CZ GR LU SI NO DK HU MT ES CH EE IE NL SE BG Printed on recycled paper with soy ink ...

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