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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. 

iT90A

MULTIBAND FM TRANSCEIVER

INSTRUCTION MANUAL

WARNING: 

MODIFICATION OF THIS DEVICE TO RECEIVE CEL-

LULAR RADIO TELEPHONE SERVICE SIGNALS IS PROHIBITED
UNDER FCC RULES AND FEDERAL LAW. 

IC-T90A_IM.qxd  02.6.6 08:44 AM  Page a (1,1)

Summary of Contents for IC-T90

Page 1: ...erence and 2 this device must accept any interference received including interference that may cause undesired operation iT90A MULTIBAND FM TRANSCEIVER INSTRUCTION MANUAL WARNING MODIFICATION OF THIS...

Page 2: ...can pick and choose any desired channel for scan ning from the 500 memories The supplied BP 217 LITHIUM ION BATTERY PACK provides full 5 W output Along with the energy conserving settings the BP 217...

Page 3: ...sregarded inconvenience only No risk of personal injury fire or electric shock Equipment damage may occur Icom Icom Inc and the logo are registered trademarks of Icom Incorporated Japan in the United...

Page 4: ...AC outlet Such a connection will damage the transceiver NEVER connect the transceiver to a power source that is DC fused at more than 5 A Accidental reverse connection will be protected by this fuse...

Page 5: ...mory bank 41 Memory clear 43 Call channel 44 y SCAN OPERATION 45 49 Scan types 45 VFO scan 46 Frequency skip function 47 Skip channel setting 47 Memory scan 48 Scan notes 49 u PRIORITY WATCH 50 54 Pri...

Page 6: ...ing the alkaline batteries Install 2 R6 AA size alkaline batteries into BP 216 Be sure to observe the correct polarity Keep battery contacts clean It s a good idea to clean battery terminals once a we...

Page 7: ...ceiver from the belt clip as shown at upper right DHandstrap Slide the handstrap through the loop on the top of the belt clip as shown at right QUICK REFERENCE GUIDE 1 q q iC t90a CAUTION HOLD THE TRA...

Page 8: ...na adapter before operating on or receiving the signal below the 50 MHz band Be sure to use this 50 MHz band adapter during operation below the 50 MHz band You can operate on the whole band with this...

Page 9: ...w Connect the CP 19 cigarette lighter adapter cable to the cigarette lighter socket e Charging starts and the battery indicator on the display blinks NOTE The BP 217 can be charged while you are opera...

Page 10: ...onnecting a regulated 12 V DC power supply If a battery pack is attached the voltage of the external power supply must be within 11 5 16 V DC otherwise the battery power may be used for operation The...

Page 11: ...the desired operating band VHF 51 000 146 010 or UHF 440 000 as default appears on the display ePush Y or Z several times to adjust to the desired audio level rRotate DIAL to select the receive freque...

Page 12: ...y default p 17 Push to adjust the frequency when Y Z and DIAL are exchanged by pushing 1 V D for 1 sec p 23 r MONITOR SWITCH SQL p 22 Push and hold to temporarily open the squelch and monitor the oper...

Page 13: ...optional CP 19 cigarette lighter cable To connect regulated power supply with optional CP 19 cigarette lighter cable 1 MODE SCAN SWITCH MODE SCAN Push to select the operating mode FM WFM AM p 21 Push...

Page 14: ...ivate the following tone functions in order Subaudible tone encoder T appears p 29 Tone squelch T SQL appears p 71 Pocket beep T SQLS appears p 71 DTCS squelch DTCS appears p 71 DTCS beep SDTCS appear...

Page 15: ...TCH 7 T SCAN Push for 1 sec to start a tone scan p 73 Inputs digit 7 for frequency input memory channel selection etc While pushing PTT this key sends the DTMF code 7 3 SET MODE SWITCH 8 SET Push for...

Page 16: ...e frequency blinks during scan w LOCK INDICATOR p 74 Indicates that the lock function is in use e RECEIVE MODE INDICATORS p 21 Shows the receive mode AM FM and WFM are available r DUPLEX INDICATORS pg...

Page 17: ...i PRIORITY WATCH INDICATOR p 50 Appears when priority watch is in use o MEMORY MODE INDICATOR p 20 Appears when a memory channel is selected 0 MEMORY CHANNEL NUMBER READOUT p 20 Shows the memory or c...

Page 18: ...y metal objects so be careful when placing bat tery packs in handbags etc If your battery pack seems to have no capacity even after being charged completely discharge it by leaving the power ON overni...

Page 19: ...can be used instead of the AC adapters of the above charg ers DBattery indicators The battery indicators blink while charging but do not indicate the power condition CHG_F appears when the charging is...

Page 20: ...TER jack NEVER use another manufactures charger An optional cable CP 19 for 12 V cigarette lighter socket can be used instead of the supplied AC adapter Connect one of these to the DC11V jack in this...

Page 21: ...batteries with new same brand alkaline batteries External power operation An optional cable CP 19 for 12 V cigarette lighter socket can be used for external power operation Power supply range is betw...

Page 22: ...e ex panded set mode 1 p 64 DSetting volume level The audio level can be adjusted through 32 levels Push Y or Z to set the desired audio level Rotating the tuning dial while pushing Y or Z also sets t...

Page 23: ...Rotate DIAL to select the desired tuning step Rotating the tuning dial while pushing 9 TS also selects the tuning step Tuning step can be set in VFO and memory modes e Push 9 TS or VFO to exit DMHz tu...

Page 24: ...evant of the se lected band When inputting a frequency outside of the frequency range the previously selected frequency is automatically selected after in putting 1 kHz digit 1 V D 2 TONE 3 H L 4 DUP...

Page 25: ...cies Push MR to select memory mode Pushing MR in memory mode toggles memory channel and memory bank indi cations To program a memory Ch refer to p 37 DCall TV weather channels Call channels are used f...

Page 26: ...d for the avionics band 108 135 995 MHz and WFM is used for FM broadcast stations 76 107 995 MHz When pushing PTT a beep tone sounds indicating the mode is not FM mode The transceiver cannot transmit...

Page 27: ...9 is tight squelch AUTO indicates automatic level adjust ment with a noise pulse count system e Release SQL to return to the previ ous indication Squelch level indication DMonitor function This functi...

Page 28: ...Y Y Z Z functions The functions of tuning dial and Y Z switches can be ex changed if desired Push 1 V D for 1 sec to exchange the functions of the tuning dial and Y Z switches VOL appears when the fun...

Page 29: ...RF indicator shows the relative signal strength DReceiving amateur bands EXAMPLE Receiving 145 600 MHz q Select VFO mode with VFO w For direct frequency input push 1 4 5 6 0 0 Skip e and t in this ca...

Page 30: ...s a call TV and weather channel p 77 U S A version only in sequence w Rotate DIAL to select the desired TV channel Rotate DIAL while pushing BAND to select all TV channels e When a signal is received...

Page 31: ...skip channels and others as skip channels Rotate DIAL to select the receivable TV channel Rotate DIAL while pushing BAND to select all TV channels DTV skip channel setting The skip channel setting ca...

Page 32: ...Attenuator function The attenuator prevents a desired signal from distorting when very strong signals are near the desired frequency or when very strong electric fields such as from a broadcasting sta...

Page 33: ...nd 0 for the example below DSelecting output power and transmitting q Push 3 H L for 1 sec to select the output power Rotating the tuning dial while pushing 3 H L also toggles the output power LOW app...

Page 34: ...ppears Refer to p 70 for tone frequency settings r Push and hold PTT to transmit The displayed frequency au tomatically changes to the transmit frequency repeater input frequency If OFF appears check...

Page 35: ...he amateur band the off band indication OFF appears on the display when PTT is pushed Check the offset frequency or duplex direction in this case p 31 U S A and Korea versions Auto repeater function u...

Page 36: ...mode U S A and Korea versions Auto repeater function uses the setting of the offset fre quency Take care the offset frequency p 33 DSetting duplex direction Push 4 DUP for 1 sec to select DUP or DUP...

Page 37: ...ion ON or OFF o Push VFO to exit set mode SPA or SPB appears and the split frequency operation is activated DSplit frequency operation example EXAMPLE VFO A FM 145 240 MHz VFO B FM 145 340 MHz q Push...

Page 38: ...t auto repeater set mode t Rotate DIAL to turn the auto repeater function ON DUP ONLY or DUP TONE or OFF U S A version DUP ONLY Activates duplex only DUP TONE Activates duplex and tone OFF Auto repeat...

Page 39: ...er output frequency t Set the shift direction of the transmit frequency DUP or DUP see p 31 for details y While pushing PTT push SQL for 1 to 2 sec to transmit a 1750 Hz tone burst signal If OFF appea...

Page 40: ...e pgs 65 70 Memory bank p 41 Memory name p 39 Scan skip setting p 48 DDefault memory contents example CHANNEL DESCRIPTION 000 499 Memory channel Mch Regular memory channel Default memory channel examp...

Page 41: ...annel 001 Push 0 0 and 1 Selecting memory channel 056 Push 0 5 and 6 Selecting memory channel 499 Push 4 9 and 9 CONVENIENT The memory channels 000 099 can be selected with 1 or 2 digits plus MR Selec...

Page 42: ...d e Push MR S MW for 1 sec to indicate memory channels Memory channel indicator and channel readout blinks Do not hold MR S MW for more than 2 sec otherwise the pre viously selected memory channel con...

Page 43: ...channel q Push VFO several times to select VFO A or B to be trans ferred w Push MR to select memory mode e Set the desired memory channel with DIAL Call or scan edge channel contents can be transferre...

Page 44: ...channels can be pro grammed with an alphanumeric name such as a repeater name club name etc for easy recognition Names can be a maximum of 6 characters see the table at right for avail able characters...

Page 45: ...ired name Available characters The memory names are automatically programmed into the memory channels DMemory name indication Turn the memory name indication ON and OFF as follows Push 6 M N for 1 sec...

Page 46: ...tuning dial while pushing BAND also selects the memory bank Select to clear the memory bank information y Rotate the tuning dial to select the desired channel Previously used memory bank channel canno...

Page 47: ...nk indication Memory channel indication t Push BAND to select memory bank y Rotate DIAL to select memory bank channel r Push CALL TV Each push selects BANK NAME SKIP CLEAR and S MW in sequence Memory...

Page 48: ...nks Do not hold MR S MW for more than 2 sec otherwise the pre viously selected VFO or memory channel will be overwritten w Select the memory channel to be cleared with DIAL Scan edges 0A 0B cannot be...

Page 49: ...l q Push CALL TV to select a call channel Pushing CALL TV selects a call TV and weather U S A ver sion only channel in sequence w Rotate DIAL counterclockwise or clockwise to select a programmed call...

Page 50: ...ater output frequencies etc DMemory scans FULL MEMORY SCAN p 48 Repeatedly scans all mem ory channels except skip channels SELECT BAND SCAN p 48 Repeatedly scans memory channels except skip chan nels...

Page 51: ...in advance Program scan edges in the same manner as programming a memory channel p 37 q Select VFO mode with VFO w Push 5 SKIP for 1 sec to toggle the frequency skip func tion ON or OFF P SKIP appear...

Page 52: ...n or clear the memory channel p 43 Skip channel setting Memory channels can be set to be skipped for memory skip scan In addition memory channels can be set to be skipped for both memory skip scan and...

Page 53: ...ile receiving an unwanted signal and scan pauses push 5 SKIP for 1 sec to set the received channel as a skip channel r Push VFO to stop the scan DFull bank scan Bank scan Bank scan repeatedly scans me...

Page 54: ...scan In addition memory channels can be set to be skipped for both memory skip scan and frequency skip scan These are useful to speed up the scan interval p 47 DWhen receiving a signal The scan pause...

Page 55: ...to speed up the scan VFO SCAN with MEMORY or CALL CHANNEL WATCH While scanning in VFO mode priority watch checks for sig nals in the selected memory or call channel every 5 sec VFO SCAN with MEMORY SC...

Page 56: ...to select the priority watch ON or priority watch with alert BELL u Push VFO to exit set mode and start the priority watch The transceiver checks the memory channel frequency every 5 sec The watch re...

Page 57: ...y watch checks for a signal in memory channels every 5 sec q Select VFO mode then set an operating frequency w Select memory mode e Push MODE SCAN for 1 sec to start a memory scan r Push 8 SET for 1 s...

Page 58: ...memory channels select for watch o Push VFO while the display shows the VFO frequency to stop the VFO scan and priority watch DCall channel watch While operating on a VFO frequency priority watch che...

Page 59: ...u Rotate DIAL to select the priority watch ON or priority watch with alert BELL i Push VFO to exit set mode and start the priority watch o Push MODE SCAN for 1 sec to start a VFO scan full scan band s...

Page 60: ...mode w Rotate DIAL until the desired item appears e Push 8 SET to select the set mode item r Rotate DIAL to select a set mode item t Push VFO to exit set mode or push 8 SET then rotate DIAL to select...

Page 61: ...Optional HM 75A functions p 61 WX ALT Weather Alert p 62 EXP1 Expanded set mode 1 upper right EXP2 Expanded set mode 2 lower right EXP1 Expanded set mode 1 STOP B Scan stop beep p 62 STOP L Scan stop...

Page 62: ...r operation within 0 159 995 MHz range 023 025 026 031 032 036 043 047 051 053 054 065 071 072 073 074 114 115 116 122 125 131 132 134 143 145 152 155 156 162 165 172 174 205 212 223 225 226 243 244 2...

Page 63: ...signal until it disappears Ro tate the tuning dial to resume manually Priority watch PRIO Activates priority watch or priority watch with alert BELL OFF The priority watch is turned OFF default ON Th...

Page 64: ...e display backlighting is turned OFF Busy LED BUSY The TX RX indicator lights green while receiving a signal or when the squelch is open This indication can be turned OFF to conserve the battery power...

Page 65: ...ernal DC power source 10 11 5 V DC For packet operation the power save should be turned OFF to receive reliable packet data Monitor switch action MONI The monitor switch can be set as a sticky switch...

Page 66: ...acters can be set to accommodate operating needs DISPLAY INTERVAL SPEED 100 100 msec 5 0 cps 200 200 msec 2 5 cps 300 300 msec 1 6 cps 500 500 msec 1 0 cps cps characters sec Optional HM 75A function...

Page 67: ...lt Scan stop LED STOP L Turns the scan stop LED ON or OFF Turn the expanded set mode 1 ON in advance ON The keypad backlighting blinks in green and orange when a scan is stopped OFF The keypad backlig...

Page 68: ...he band edge beep is turned OFF default Auto power ON AP ON Turns the transceiver power ON after 30 min to 24 hrs in 30 min steps Turn the expanded set mode 1 ON in advance When operating with battery...

Page 69: ...rast of the LCD can be adjusted from 4 levels Turn the expanded set mode 1 ON in advance 1 low contrast 4 high contrast 3 default Opening message OPN MSG Turns the opening message ON or OFF Turn the e...

Page 70: ...t Time out timer TOT To prevent accidental prolonged transmission etc the trans ceiver has a time out timer This timer cuts a transmission OFF after 1 3 5 or 10 min of continuous transmission This tim...

Page 71: ...lects the narrow FM devia tion for FM mode OFF Selects the normal FM devia tion for FM mode default Morse code synthesizer MC SYN The transceiver announces the operating frequency or TV channel number...

Page 72: ...1 sec to enter programming mode Previously programmed DTMF code is cleared r Push the desired keys to input the characters VFO inputs A MR inputs B CALL TV inputs C BAND inputs D inputs M E and MODE i...

Page 73: ...chan nel r Push VFO to exit DTMF memory t While pushing PTT push SQL to transmit the selected DTMF code DTransmitting a DTMF code directly DTMF code can be transmitted via keypad directly while trans...

Page 74: ...ramming mode Confirming a DTMF memory The DTMF memory can be confirmed with a DTMF tone q Push DTMF M for 1 sec to enter DTMF memory mode w Rotate DIAL to select the desired DTMF memory chan nel e Pus...

Page 75: ...has called while you were away from the transceiver The same code is used for DTCS squelch and beep DSetting subaudible tones for repeater or tone squelch q Push 8 SET for 1 sec to enter set mode w Ro...

Page 76: ...and hold SQL Pocket beep function q Set the desired operating frequency w Set the desired CTCSS tone or DTCS code e Push 2 TONE for 1 sec one or more times to activate the pocket beep or DTCS beep T...

Page 77: ...74 4 77 0 79 7 82 5 85 4 88 5 91 5 94 8 97 4 100 0 103 5 107 2 110 9 114 8 118 8 123 0 127 3 131 8 136 5 141 3 146 2 151 4 156 7 159 8 162 2 165 5 167 9 171 3 173 8 177 3 179 9 183 5 186 2 189 9 192 8...

Page 78: ...tone frequency or DTCS code is decoded the set mode contents are programmed with the frequency or code The tone scan pauses approx 10 sec when a tone frequency or DTCS code is detected The decoded ton...

Page 79: ...set mode p 60 Lock function The lock function prevents accidental frequency changes and accidental function access Push CALL TV LOCK for 1 sec to toggle the lock function ON and OFF PWR VOL SQL and P...

Page 80: ...nthesizer ON or OFF Power save The power save function reduces the current drain to con serve battery power The power save duty cycle the ratio of receive circuit on to receive circuit off while stand...

Page 81: ...ansceiver can be set to automatically turn OFF after a specified period with a beep when no switch is pushed 120 min 90 min 60 min 30 min and OFF can be speci fied The specified period is retained eve...

Page 82: ...announcement When the alert sig nal is detected the AL T and the WX channel are displayed alternately and sounds a beep tone until the transceiver is operated The previously selected used weather chan...

Page 83: ...he receiving signal or audio will be interrupted momentarily every 5 sec approx in the case that the alert function is turned ON This symp tom is caused by the WX alert function To cancel these sympto...

Page 84: ...l CS T90A CLONING SOFTWARE and the optional OPC 478 CLONING CABLE are available to clone and edit contents with a PC for Microsoft Windows 95 98 ME Microsoft and Windows are registered trademarks of M...

Page 85: ...nts to their default settings Partial reset If you want to initialize the operating conditions VFO frequency VFO set tings set mode contents without clear ing the memory contents a partial resetting f...

Page 86: ...75A in the SP MIC jacks NORM 1 default A Selects band B Toggles VFO and memory Y UP Z DOWN NORM 2 A Toggles monitor function B Toggles VFO and memory Y UP Z DOWN SIMPLE A Toggles monitor function B Se...

Page 87: ...e beep tone level is low Turn beep tones ON or set the beep tone level to appropriate level in set mode pgs 58 59 No contact possible with another station Different tone is selected with tone DTCS squ...

Page 88: ...1 25 685 75 CH Video Audio 50 687 25 691 75 51 693 25 697 75 52 699 25 703 75 53 705 25 709 75 54 711 25 715 75 55 717 25 721 75 56 723 25 727 75 57 729 25 733 75 58 735 25 739 75 59 741 25 745 75 60...

Page 89: ...67 75 34 569 25 574 75 35 576 25 581 75 36 583 25 588 75 37 590 25 595 75 38 597 25 602 75 New Zealand channels CH Video Audio 1 45 25 50 75 2 55 25 60 75 3 62 25 67 75 4 175 25 180 75 5 182 25 187 75...

Page 90: ...5 861 75 57 863 25 869 75 58 871 25 877 75 59 879 25 885 75 60 887 25 893 75 61 895 25 901 75 62 903 25 909 75 63 911 25 917 75 64 919 25 925 75 65 927 25 933 75 66 935 25 941 75 67 943 25 949 75 68 9...

Page 91: ...540 75 30 543 25 548 75 31 551 25 556 75 32 559 25 564 75 33 567 25 572 75 34 575 25 580 75 35 583 25 588 75 36 591 25 596 75 37 599 25 604 75 CH Video Audio 38 607 25 612 75 39 615 25 620 75 40 623...

Page 92: ...cal Rx rated audio 220 mA typical standby 100 mA typical power save 65 mA typical Antenna connector SMA 50 Dimensions 29 32 W 37 16 H 15 32 D in projections not included 58 W 87 H 29 D mm Weight appro...

Page 93: ...MHz 1 3 V at 10 dB S N 5 000 29 995 MHz 0 56 V 118 000 136 000 MHz 0 5 V 222 000 229 995 MHz 0 79 V 320 000 329 995 MHz 1 V Selectivity except WFM Less than 15 kHz 9 dB More than 30 kHz 60 dB Spurious...

Page 94: ...in 50MHz band with high power Tx Rx Standby 1 1 8 HM 54 SPEAKER MICRO PHONE Slim dimensions Equipped with an earphone jack and a transmit indicator HM 75A REMOTE CONTROL MICROPHONE Allows you to remot...

Page 95: ...e transceiver via a DC power source 11 5 16 V DC CS T90A CLONING SOFTWARE OPC 478 CLONING CABLE Allows you to transfer data from memories etc and quickly and easily edit and store data via a PC for Mi...

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Page 97: ...AL to change the setting r Push 8 SET momentarily to return to the condition of step w t Push VFO to exit the SET mode CPU reset operation ALL reset q Turn power OFF w While pushing and holding BAND V...

Page 98: ...te DIAL to select MR CH 2 t Push and hold MR S MW for 1 sec VFO mode is selected after programming MEMORY channel clearing q Select the desired memory channel w Push and hold MR S MW for 1 sec w Push...

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Page 100: ...Count on us 1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan A 6134H 1EX Printed in Japan 2002 Icom Inc IC T90A_IM qxd 02 6 6 08 45 AM Page z 1 1...

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