ICOM orporated IC-T90A Amateur Transceiver with Scanning Receiver User Manual IC T90A IM

ICOM Incorporated Amateur Transceiver with Scanning Receiver IC T90A IM

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IC T90A User Manual HTML Version

Users Manual

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 02.5.28 01:12 PM Page a (1,1)

FOREWORD

Thank you for purchasing this Icom product. The IC-T90A

MULTIBAND TRANSCEIVER is designed and built with

Icom’s superior technology and craftsmanship. With proper

care, this product should provide you with years of trouble-

free operation.

The IC-T90A is a tri-band, 6 m, 2 m (140 MHz), 440 MHz FM

transceiver that offers a wide-band AM, FM and WFM scan-

ning receiver. Not only you can hear your favorite TV pro-

grams with the pre-programmed TV memories, but also you

can listen to short wave, AM and FM broadcast radio stations,

police, ﬁre, military, aircraft, various amateur bands and more.

New DMS(Dynamic Memory Scan) bank scanning provides

555 alphanumeric memory channels, including 50 band

edges, with a maximum of 18 banks or 100 channels per

bank, you 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 outputs. Along with the energy conserving settings the

BP-217 provides up to 5 to 6 hours of operating time.

The supplied MB-83 swivel type belt clip performs quick draw

action for attach/detach the transceiver from the belt clip.

And newly designed antenna also provides a stable signal

strength.

We want to thank you for making your IC-T90A your radio of

choice, and hope

you agree with Icom’s philosophy of “technology ﬁrst.” Many

hours of research and development went into the design of

your IC-T90A.

ïï

FEATURES

❍

Tri-band FM transceiver

❍

Wide-band receiver

—Covers 495 KHz to 999.990 MHz

❍

New DMS (Dynamic Memory Scan)

bank scan

❍

Lithium-Ion technology

❍

Rugged palm sized, weather-resis-

tant construction

❍

DTCS and CTCSS tone squelch

❍

Simple operation

IC-T90A_IM.qxd 02.5.28 01:12 PM Page b (1,1)

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-T90A.

EXPLICIT DEFINITIONS

The explicit deﬁnitions below apply to this instruction manual.

WORD

WARNING

CAUTION

NOTE

DEFINITION

Personal injury, fire hazard or electric

shock may occur.

If disregarded, 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 States, the United Kingdom,

Germany, France, Spain, Russia and/or other countries.

SUPPLIED ACCESSORIES

Accessories included with the transceiver: Qty.

qLi-Ion battery pack (BP-217) .......................................... 1

wWall charger* (BC-110AR/D/DR) .................................... 1

eMB-83 swivel belt clip .............................................. 1 set

rHandstrap........................................................................ 1

tAntenna (FA-S6270D; with 50M band adapter) ....... 1 set

* Not supplied with some versions.

ert

IC-T90A_IM.qxd 02.5.28 01:12 PM Page 1 (1,1)

iii

WARNING RF EXPOSURE! This device emits

Radio Frequency (RF) energy. Extreme caution should be

observed when operating this device. If you have any ques-

tions regarding RF exposure and safety standards please

refer to the Federal Communications Commission Office of

Engineering and Technology’s report on Evaluating

Compliance with FCC Guidelines for Human Radio frequency

Electromagnetic Fields (OET Bulletin 65)

WARNING! NEVER hold the transceiver so that the

antenna is very close to, or touching exposed parts of the

body, especially the face or eyes, while transmitting. The

transceiver will perform best if the microphone is 1 to 2 in (2

to 5 cm) away from the lips and the transceiver is vertical.

WARNING! NEVER operate the transceiver with a

headset or other audio accessories at high volume levels.

Hearing experts advise against continuous high volume oper-

ation. If you experience a ringing in your ears, reduce the vol-

ume level or discontinue use.

NEVER CONNECT a power supply more than

11.5 V DC to the DC jack. The supply voltage must be

between 5.5 V and 11.5 V to prevent damaging the trans-

ceiver.

NEVER connect the transceiver to an 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, but higher fuse values will not give

proper protection against such accidents and the transceiver

will be ruined.

DO NOT operate the transceiver near unshielded electrical

blasting caps or in an explosive atmosphere.

AVOID using or placing the transceiver in direct sunlight or

in areas with temperatures below +14°F (–10°C) or above

+140°F (+60°C).

The use of non-Icom battery packs/chargers may impair

transceiver performance and invalidate the warranty.

Even when the transceiver power is OFF, a slight current still

ﬂows in the circuits. Remove the battery pack or case from

the transceiver when not using it for a long time. Otherwise,

the battery pack or installed batteries will become exhausted.

For U.S.A. only

CAUTION: Changes or modiﬁcations to this device, not ex-

pressly approved by Icom Inc., could void your authority to

operate this device under FCC regulations.

CAUTIONS

IC-T90A_IM.qxd 02.5.28 01:12 PM Page 2 (1,1)

FOREWORD ............................................. i

IMPORTANT ............................................. ii

EXPLICIT DEFINITIONS .......................... ii

SUPPLIED ACCESSORIES ..................... ii

CAUTIONS ............................................... iii

TABLE OF CONTENTS ........................... iv

qQUICK REFERENCE GUIDE ........ 1 – 6

wPANEL DESCRIPTION ................ 7– 12

■Panel description ............................. 7

■Function display ............................. 11

eBATTERY CHARGING .............. 13 – 16

■Battery attachment ......................... 13

■Battery cautions ............................. 13

■Regular charging ........................... 14

■Rapid charging ............................... 15

■Battery case ................................... 16

■External power operation ............... 16

rBASIC OPERATION .................. 17 – 34

■Turning power ON ......................... 17

■Tuning step .................................... 18

■Setting a frequency ........................ 19

■Mode selection ............................... 20

■Operating band and receive mode

selection ......................................... 21

■Setting squelch level ...................... 22

■Receiving ....................................... 23

■RIT function ................................... 27

■Attenuator function ......................... 27

■Transmitting ................................... 28

■Repeater operation ........................ 29

■Duplex operation ............................ 31

■Split operation ................................ 32

■Auto repeater function ................... 33

■1750 Hz tone ................................. 34

tMEMORY/CALL CHANNELS .... 35 – 44

■General .......................................... 35

■Calling up memory channels ......... 36

■Programming memory channels .... 37

■Transferring memory contents

to VFO ........................................... 38

■Copying memory contents ............. 39

■Memory names .............................. 39

■Memory bank ................................. 41

■Memory clear ................................. 43

■Call channel ................................... 44

ySCAN OPERATION ................... 45 – 49

■Scan types ..................................... 45

■VFO scan ....................................... 46

■Frequency skip function ................. 47

■Skip channel setting ....................... 47

■Memory scan ................................. 48

■Memory bank scan ........................ 48

■Scan notes ..................................... 49

uPRIORITY WATCH .................... 50 – 54

■Priority watch types ........................ 50

■Priority alert .................................... 50

■Priority watch operation ................. 51

iSET MODE ................................ 55 – 66

■Set mode ....................................... 55

■Set mode items ............................. 56

oOTHER FUNCTIONS ................ 67– 80

■Programming a DTMF code .......... 67

■Transmitting a DTMF code ............ 68

■Clearing a DTMF memory ............. 69

■Conﬁrming a DTMF memory ......... 69

■Tone frequency and DTCS code .... 70

■Tone/DTCS squelch ....................... 71

■Pocket beep ................................... 71

■Available tone frequencies ............. 72

■Available DTCS code ..................... 72

■Tone scan ...................................... 73

■Beep tones ..................................... 74

■Dial speed acceleration ................. 74

■Lock function .................................. 74

■Morse code synthesizer ................. 75

■Power save .................................... 75

■Time-out timer ................................ 76

■PTT lock ......................................... 76

■Auto power OFF ............................ 76

■Auto power ON .............................. 76

■Weather channel operation ............ 77

■Cloning function ............................. 79

■[SP/MIC] jacks ............................... 79

■Resetting ........................................ 80

!0 HM-75A REMOTE CONTROL

MICROPHONE ................................. 81

!1 TROUBLESHOOTING ..................... 82

!2 TV FREQUENCY TABLE ........... 83 – 86

!3 SPECIFICATIONS ..................... 87 –88

!4 OPTIONS ................................... 89– 90

POCKET GUIDE

TABLE OF CONTENTS

!!00

!!11

!!22

!!33

!!44

IC-T90A_IM.qxd 02.5.28 01:12 PM Page 3 (1,1)

QUICK REFERENCE GUIDE

■Installing the battery pack

qOpen the latch. Then, attach the Li-Ion battery pack

(BP-217) or battery case (BP-216).

•Be sure to observe the correct direction.

•Charge Li-Ion battery pack before use.

wLock the latch.

NOTE: The battery pack is provided uncharged. BE SURE to

charge the battery before using it with the transceiver.

DInstalling 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 week.

■Accessory attachment

DAttach the swivel belt clip

Supplied swivel belt clip is useful for easy detach/attach the

transceiver from/to the belt.

qAttach the stopper to

the transceiver with

the supplied screw.

wClip the belt clip to

your belt.

Battery pack or

battery case

Latch

stopper

supplied

screw

IC-T90A_IM.qxd 02.5.28 01:12 PM Page 4 (1,1)

QUICK REFERENCE GUIDE

eInsert the transceiver to the end of the

clip as shown right.

•Once the transceiver

is locked in place, it

will swivel 360

degrees as shown

right.

To remove:

rTurn the transceiver upside down, and then lift to release

the transceiver from the belt clip as shown upper right.

DHandstrap

Slide the handstrap through the loop on

the top of the belt clip as shown right.

Facilitates carrying.

QUICK REFERENCE GUIDE

iC-t

CAUTION!

HOLD THE TRANSCEIVER TIGHTLY, WHEN ATTACHING

OR REMOVING THE TRANSCEIVER TO/FROM THE

BELT CLIP.

If the transceiver accidentally dropped and the swivel belt

clip’s stopper is scratched, the swivel belt clip may not work

properly.

IC-T90A_IM.qxd 02.5.28 01:12 PM Page 5 (1,1)

1QUICK REFERENCE GUIDE

50M band

adapter

Attach the 50M band

adapter

Hold the base , then screw the

anttenna

for BC

band to 50M band,

through to 800M band

for WFM band

800M band

Detach the top cap*

*KEEP the the anttenna top cap

in the safe place during it not

in use.

DInstalling the antenna

Insert the supplied wide band antenna into the antenna con-

nector and screw down the antenna as shown below.

• 50M band adapter

Attach the 50M band antenna adapter before operating 50 M

band or receiving the signal below 50M band. Be sure to use

this 50M band adapter during the operation below 50M band.

You can operate the whole band with this adapter.

CAUTION!

TRANSMITTING WITHOUT ANTENNA MAY DAMAGE THE

TRANSCEIVER.

NEVER HOLD the anten-

na when carrying the trans-

ceiver or never brandish the

transceiver.

KEEP the jack covers at-

tached when the jack is not

in use, to avoid bad con-

tacts from dust and mois-

ture.

NOTE:

Commercially available antennas may increase transceiver

performance. An optional AD-92SMA ANTENNA CONNECTOR

ADAPTER is available to connect an external antenna with a

BNC connector.

IC-T90A_IM.qxd 02.5.28 01:12 PM Page 6 (1,1)

QUICK REFERENCE GUIDE

■Charging the Li-Ion battery pack

DCharging with the wall charger

qPush and hold [PWR] to turn the transceiver power OFF.

wInsert the charger plug into the DC power jack of the trans-

ceiver.

ePlug the charger into AC wall outlet.

rCharging starts and battery indicator “” on the display

blinks.

tIt takes approximately 15 hours to charge an empty BP-

217 Li-Ion battery pack.

yUnplug the charger from the AC wall outlet when charging

is completed.

DCharging with the CP-19 Cigarette Lighter

cable (optional)

qInsert the cigarette lighter adapter cable into the DC power

jack of the transceiver.

wConnect the CP-19 cigarette lighter adapter cable to the

cigarette lighter socket.

eCharging starts and battery indicator on the display ﬂash.

NOTE:

•The BP-217 can be charged in background during you operate the

transceiver. (p. 5).

•Charging will be suspended during transmitting.

•“CHG_F” appears when the charging is completed with the power

turned OFF.

•NEVER connect the cigarette lighter socket or external regulated

DC power supply directly to the transceiver. Such a connection will

damage the transceiver.

•Remove CP-19 from the transceiver when not using it. Otherwise,

the vehicle battery will become exhausted.

IC-T90A with BP-217

BC-110AR/D/DR

DC power jack

to AC outlet

CP-19

(optional)

DC power

jack

to a 12 V

cigarette lighter

socket

QUICK REFERENCE GUIDE

IC-T90A_IM.qxd 02.5.28 01:12 PM Page 7 (1,1)

1QUICK REFERENCE GUIDE

■Rapid charging

The optional BC-139 provides rapid charging of the battery

pack.

CAUTION: To avoid damage to the transceiver, turn trans-

ceiver OFF while charging.

•Charging period: 2.5 hours (w/BP-217)

■External power operation

An optional CP-19 cigarette lighter cable can be used for ex-

ternal power operation from a 12 V DC cigarette lighter

socket.

•Power supply range is between 5.5–11.5 V DC.

NEVER CONNECT OVER 11.5 V DC direct into the

DC power jack of the transceiver.

•BE SURE to use the CP-19 when connecting 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 maximum output power is 5.0 W regardless of the

power supply voltage.

•Remove the cables from the transceiver when not using

it. Otherwise, the vehicle battery will become exhausted.

CP-19

(optional)

DC power

jack

to a 12 V

cigarette lighter

socket

Turn power

OFF.

Check the

orientation.

BP-217

Li-Ion battery pack

to AC

outlet

BC-139 (optional)

desktop charger

BC-123

(supplied with

BC-139)

to [AC ADAPTER] jack

Adapter (supplied

with BC-139)

LED

Charging:

Orange

Finished:

Green

Charging

terminal

IC-T90A_IM.qxd 02.5.28 01:12 PM Page 8 (1,1)

QUICK REFERENCE GUIDE

■Your ﬁrst contact

Now that you have your IC-T90A ready to operation, you are

probably excited to get on the air. We would like to take you

through a few basic operation steps to make your first “On

The Air” an enjoyable experience.

DFirst contact

qPush and hold [PWR] for 1 sec. to turn the transceiver

power ON.

•The function display shows “ICOM,” current voltage then the op-

erating frequency.

wPush [BAND] several times until 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 desired audio

level.

rRotate [DIAL] to select receive frequency.

‘Direct frequency input’via the keypad also available.

(p. 19)

tHold the transceiver approximately 2 in. (5 cm) from your

mouth.

yPush and hold [PTT], then speak in your normal voice

level.

uRelease [PTT] switch to receive.

•Repeat steps, t, yand uto continue communication.

[DIAL]

[PTT]

[UP/DOWN]

[BAND]

[PWR]

[Mic]

QUICK REFERENCE GUIDE

FM DUP SKIPTP

[EXAMPLE] Setting the

receive frequency to

444.350 MHz

IC-T90A_IM.qxd 02.5.28 01:12 PM Page 9 (1,1)

■Panel description qPOWER SWITCH [PWR]

Push for 1 sec. to turn the transceiver power ON and OFF.

wBAND SWITCH [BAND]

➥Push to select the operating band (5MHz, Air, VHF, UHF,

etc.). (p. 21)

➥Push to select the memory bank or push to proceed the

memory name cursor while programming the memory

option. (pgs. 39, 41)

➥Push for 1 sec. to have Morse code synthesizer. (p. 75)

➥While pushing [PTT], this key sends a DTMF “D.”

eUP/DOWN SWITCHES [Y]/[Z]

➥Push to adjust the audio level by 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)

rMONITOR SWITCH [SQL] (p. 22)

➥Push and hold to temporarily open the squelch and

monitor the operating frequency.

➥While pushing, rotate the tuning dial to set the squelch

threshold level.

tTRANSMIT/RECEIVE INDICATOR

➥Lights green while receiving a signal or when the

squelch is open; lights red while transmitting.

➥Flashes green for 5 sec. when the scan stop LED func-

tion is in use and a scan is stopped. (pgs. 46, 62)

Keypad !6–@5

Function display

Speaker

Microphone

2PANEL DESCRIPTION

IC-T90A_IM.qxd 02.5.28 01:12 PM Page 10 (1,1)

PANEL DESCRIPTION

yPTT SWITCH [PTT]

➥Push and hold to transmit in 50/144/430 MHz amateur

bands; release to receive. (p. 28)

•When WFM or AM mode is selected, transmission is impossi-

ble.

uANTENNA CONNECTOR (p. 3)

Connects the supplied antenna.

iEXTERNAL SPEAKER AND MICROPHONE JACKS

[SP/MIC]

Connects an optional speaker-microphone or headset, if

desired. The internal microphone and speaker will not

function when any external equipment is connected. (See

pgs. 89, 90 for a list of available options.)

oTUNING DIAL [DIAL]

➥Rotate [DIAL] to set operating frequencies, memory

channels, set mode contents, etc. (pgs. 19, 36, 55)

➥While pushing [SQL], sets the squelch level. (p. 22)

➥While pushing [BAND], sets the operating band in VFO

mode. (p. 21)

➥While pushing [Y]/[Z], adjusts the audio level (when

[Y]/[Z] and [DIAL] are not exchanged). (p. 17)

!0 EXTERNAL DC POWER JACK [DC 11.0 V]

➥Allows charging of the BP-217 using the BC-110A/D wall

charger, or using an 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 for 1 sec. to start a scan. (p. 45)

➥While pushing [PTT], this key sends a DTMF “#” (F).

!2 VFO SWITCH [VFO MHz]

➥Selects and toggles between VFO A and B.

(p. 20)

➥Selects and toggles between the 1 MHz or 10

MHz tuning steps when pushed for 1 sec.

(p. 18)

➥Returns to previous operating condition while setting fre-

quency or memory channel, or while in set mode.

➥While pushing [PTT], this key sends a DTMF code “A”.

!3 MEMORY SWITCH [MR S.MW]

➥Selects and toggles between memory mode

and memory bank. (p. 20)

➥Push for 1 sec. to enter memory write condi-

tion. (p. 37)

➥Push for 2 sec. to write the operating frequency into the

selected memory channel in VFO mode.

•Keep pushing for 2 sec. or more to automatically select the

next memory channel, if desired. (p. 38)

➥Push [MR S.MW] for 2 sec. to transfer the displayed fre-

quency into the VFO in memory mode. (p. 38)

S.MW

VFO

MHz

MODE

SCAN

PANEL DESCRIPTION

IC-T90A_IM.qxd 02.5.28 01:12 PM Page 11 (1,1)

2PANEL DESCRIPTION

➥While pushing [PTT], this key sends a DTMF “B”.

!4 CALL/LOCK SWITCH [CALL/TV LOCK]

➥Toggles between call channel, TV channel,

weather channel (U.S.A. version only) and

VFO mode in sequence. (p. 20)

➥Push for 1 sec. to toggle the lock function ON and OFF.

(p. 74)

•“

” appears while the key lock function is in use.

➥While pushing [PTT], this key sends a DTMF code “C”.

!5 DTMF MEMORY SWITCH [• DTMF.M]

➥Push for 1 sec. to enter the DTMF memory

channel. (p. 67)

➥Inputs MHz digit for frequency input. (p. 19)

➥While pushing [PTT], this key sends a DTMF cod “M(E)”.

!6 VOLUME/DIAL SWITCH [1 V↔D]

➥Push for 1 sec. to exchange [Y]/[Z] and

[DIAL] functions. (p. 23)

•“VOL” appears when the tuning dial functions as a

volume control.

➥Inputs digit ‘1’for frequency input, memory channel se-

lection, etc.

➥While pushing [PTT], this key sends a DTMF code “1”.

!7 TONE SWITCH [2 TONE] (p. 70)

➥Push for 1 sec. to activate 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” appears. (p. 71)

•No tone operation — no tone indicator appears.

➥Inputs digit ‘2’for frequency input, memory channel se-

lection, etc.

➥While pushing [PTT], this key sends a DTMF code “2”.

!8 OUTPUT POWER SWITCH [3 H/L] (p. 28)

➥Push for 1 sec. to toggle output power be-

tween high and low.

•“LOW” appears when low output power is selected.

➥Inputs digit ‘3’for frequency input, memory channel se-

lection, etc.

➥While pushing [PTT], this key sends a DTMF code “3”.

!9 DUPLEX SWITCH [4 DUP] (pgs. 29, 31)

➥Push for 1 sec. to activate the following duplex

functions in order.

•Minus duplex operation — “–DUP” appears.

•Plus duplex operation — “DUP” appears.

•Simplex operation — no duplex indicator appears.

➥Inputs digit ‘4’for frequency input, memory channel se-

lection, etc.

➥While pushing [PTT], this key sends a DTMF code “4”.

DUP

H/L

TONE

V D

DTMF.M

CALL/TV

LOCK

IC-T90A_IM.qxd 02.5.28 01:12 PM Page 12 (1,1)

PANEL DESCRIPTION

@0 FREQUENCY SKIP SWITCH [5 SKIP]

➥Push for 1 sec. to turn the frequency skip func-

tion ON and OFF in VFO mode. (p. 47)

•“P SKIP” appears when the frequency skip function

is in use.

➥Push for 1 sec. to set the memory channel as the fol-

lowing skip channel in memory mode in order. (p. 48)

•Skip channel — “SKIP” appears.

•Frequency skip channel — “P SKIP” appears.

•Non-skip channel — no skip indicator appears.

➥Push for 1 sec. to program the pausing frequency as a

skip frequency while scanning. (p. 48)

➥Inputs digit ‘5’for frequency input, memory channel se-

lection, etc.

➥While pushing [PTT], this key sends a DTMF code “5”.

@1 MEMORY NAME SWITCH [6 M.N]

➥Push for 1 sec. to turn the memory name indi-

cation ON and OFF. (p. 39)

•Frequency appears for nameless memory chan-

nels.

➥Inputs digit ‘6’for frequency input, memory channel se-

lection, etc.

➥While pushing [PTT], this key sends a DTMF code “6”.

@2 TONE SCAN SWITCH [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 a DTMF code “7”.

@3 SET MODE SWITCH [8 SET]

➥Push for 1 sec. to enter the set mode. Push to

select the displayed set mode item after se-

lecting with [DIAL] while in the set mode.

(p. 55)

➥Inputs digit ‘8’for frequency input, memory channel se-

lection, etc.

➥While pushing [PTT], this key sends a DTMF code “8”.

@4 TUNING STEP SWITCH [9 TS]

➥Push for 1 sec. to select the tuning step.

(p. 18)

➥Inputs digit ‘9’for frequency input, memory

channel selection, etc.

➥While pushing [PTT], this key sends a DTMF code “9”.

@5 RIT/ATTENUATOR SWITCH [0 RIT]

➥Push for 1 sec. to enter the RIT/attenuator set

mode. Push to select the item after selecting

with [DIAL]. (p. 27)

•RIT function is available for 630.000 MHz and above.

•Attenuator for 629.995 MHz or less.

➥Inputs digit ‘0’for frequency input, memory channel se-

lection, etc.

➥While pushing [PTT], this key sends a DTMF code “0”.

RIT

SET

T.SCAN

M.N

SKIP

PANEL DESCRIPTION

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 13 (1,1)

2PANEL DESCRIPTION

■Function display

qFREQUENCY READOUT

Shows the operating frequency, set mode contents, etc.

•The smaller “75,” “50” and “25” to the right of the readout indi-

cate 0.75, 0.5 and 0.25 kHz, respectively.

•The decimal point of the frequency ﬂashes during scan.

wLOCK INDICATOR (p. 74)

Indicates that the lock function is in use.

eRECEIVE MODE INDICATORS (p. 21)

Show the receive mode.

•AM, FM and WFM are available.

rDUPLEX INDICATORS (pgs. 29, 31)

Appear when semi-duplex operation (repeater operation)

is in use.

•“–DUP” appears when minus duplex is selected; “DUP” only, ap-

pears when plus duplex is selected.

we r t yu

!1!2!5 !3!4

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 14 (1,1)

PANEL DESCRIPTION

tTONE INDICATORS (p. 70)

➥Appear when the following tone functions are activated.

•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” appears. (p. 71)

➥“S” ﬂashes when the correct tone or code is received

during pocket/DTCS beep operation. (p. 71)

yRIT INDICATOR (p. 27)

Appears when the RIT (Receive Incremental Tuning) func-

tion for 630.000 MHz and above is in use.

uSKIP SCAN INDICATOR (p. 48)

➥“SKIP” appears when a selected memory channel is set

as a skip channel.

➥“P SKIP” appears when the memory channel frequency

is set as a skip frequency in memory mode.

➥“P SKIP” appears when the frequency skip function is

turned ON in VFO mode.

iPRIORITY WATCH INDICATOR (p. 50)

Appears when priority watch is in use.

oMEMORY MODE INDICATOR (p. 21)

Appears when a memory channel is selected.

!0 MEMORY CHANNEL NUMBER READOUT (p. 20)

Shows the memory or call channel number, etc.

!1 S/RF INDICATORS (p. 28)

Shows the relative signal strength while receiving. Shows

the relative output power while transmitting.

!2 LOW POWER INDICATOR (p. 28)

Appears when low output power is selected.

!3 VOLUME EXCHANGE INDICATOR (p. 23)

Appears when the functions of tuning dial and [Y]/[Z]

switches are exchanged.

!4 BATTERY INDICATORS

➥Both segments appear when the batteries have ample

capacity.

•They do not appear when operating with an external power

source.

➥Only the right segment “” appears when the batteries

are nearing exhaustion.

➥Flash while charging the attached Li-Ion battery pack.

!5 ATTENUATOR INDICATOR (p. 27)

Appears when attenuator is in use.

PANEL DESCRIPTION

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 15 (1,1)

■Battery attachment

qAttach the Li-Ion battery pack (BP-217) or battery case

(BP-216).

•Be sure to observe the correct direction.

•Charge Li-Ion battery pack before use.

wLock the latch.

DOperating periods

The operating periods with BP-217 are:

50 MHz Approx. 6 hr.

144 MHz Approx. 5 hr.

440 MHz Approx. 5 hr.

at high power, Tx : Rx : Standby = 1:1:8

■Battery cautions

NEVER incinerate used battery packs. Internal battery gas

may cause an explosion.

NEVER immerse the battery pack in water. If the battery pack

becomes wet, be sure to wipe it dry BEFORE attaching it to

the transceiver.

NEVER short terminals of the battery pack. Also, current may

ﬂow into nearby 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 overnight. Then, fully charge the battery pack again. If the

battery pack still does not retain a charge (or very little), a

new battery pack must be purchased.

Use Icom battery packs, chargers and cables only. The use of

non-Icom products may impair transceiver performance and

invalidate the warranty.

Even when the transceiver power OFF, a slight current still

ﬂows in the circuits. Remove the battery pack or case from

the transceiver when not using it for a long time. Otherwise,

the battery pack or installed batteries will become exhausted.

Battery pack or

battery case

Latch

3BATTERY CHARGING

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 16 (1,1)

BATTERY CHARGING

■Regular charging

Prior to using the transceiver for the first time, the battery

pack must be fully charged for optimum life and operation.

CAUTION: To avoid damage to the transceiver, turn trans-

ceiver OFF while charging.

•Recommended temperature range for charging:

+32°F to +95°F; 0°C to +35°C

•Use the wall charger* (BC-110AR/D/DR) only. NEVER use

another manufactures’charger.

* Not supplied with some versions.

•An optional cable CP-19 (for 12 V cigarette lighter socket)

can be used instead of the AC adapters of the above charg-

ers.

DBattery indicators

The battery indicators ﬂash while charging with no relation of

the power condition.

“CHG_F” appears when the charging is completed. Discon-

nect the wall charger in this case.

qAttach the battery pack to the transceiver.

wBe sure to turn the transceiver power OFF.

eConnect the AC adapter* (BC-110AR/D/DR) as shown

below.

* Not supplied with some versions.

rRemove any cables from the [DC11V] jack.

•Charging period: 15 hours (w/BP-217)

BATTERY CHARGING

IC-T90A with BP-217 BC-110AR/D/DR

to AC outlet

CP-19

(optional)

DC power

jack

to a 12 V

cigarette lighter

socket

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 17 (1,1)

3BATTERY CHARGING

■Rapid charging

The optional BC-139 provides rapid charging of the battery

pack.

•Charging period: 2.5 hours (w/BP-217)

CAUTION: To avoid damage to the transceiver, turn it OFF

while charging.

•Recommended temperature range for charging:

0°C to +35°C; +32°F to +95°F

•NEVER connect 2 chargers to the [AC ADAPTER] and

[DC11V] jacks.

•Use the supplied BC-123 for the BC-139 desktop charger.

Connect BC-123 to the [AC ADAPTER] 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 case.

If the charge indicator flashes orange, there may be a

problem with the battery pack (or charger). Re-insert the

battery pack or contact your dealer.

Turn power

OFF.

Check the

orientation.

BP-217

Li-Ion battery pack

to AC

outlet

BC-139 (optional)

desktop charger

BC-123

(supplied with

BC-139)

to [AC ADAPTER] jack

Adapter (supplied

with BC-139)

LED

Charging:

Orange

Finished:

Green

Charging

terminal

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 18 (1,1)

■Battery case

qInstall 2 R6 (AA) size alkaline

batteries into BP-216.

•Be sure to observe the correct

polarity.

wInstall the battery case as

shown at right.

Keep battery contacts clean.

It’s a good idea to clean bat-

tery terminals once a week.

DBattery information

The batteries may seem to have low capacity when using in

low temperature such as +14 °F (–10 °C) or below. Please

keep the battery case or pack warm in this case.

DBattery replacement

When the batteries become exhausted, the function display

may ﬂash or have a lower contrast. In these cases, replace

all 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 between 5.5–11.0 V DC.

NEVER CONNECT OVER 11.5 V DC direct into

the DC power jack of the transceiver.

•BE SURE to use CP-19 when connecting regulated

12 V DC power supply.

•If a battery pack is attached, the voltage of the external

power must be within 11.5–16 V DC, otherwise, the bat-

tery power may be used for operation.

•The maximum output power is 5.0 W regardless of the

power supply voltage.

•Remove the cables from the transceiver when not using

it. Otherwise, the vehicle battery will become exhausted.

BATTERY CHARGING

CP-19

(optional)

DC power

jack

to a 12 V

cigarette lighter

socket

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 19 (1,1)

4BASIC OPERATION

■Turning power ON

DTurning power ON

qMake sure alkaline batteries are installed in the battery

case or battery pack is charged, and attach them. (p. 13)

wPush [PWR] for 1 sec. to turn the power ON.

•The function display shows “ICOM,” current voltage then the op-

erating frequency.

•Repeat this step to turn power OFF.

The opening message can be turned ON or OFF in the 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 the

audio level.

•[Y]/[Z] and [DIAL] can be exchanged by [1 V↔D]. (p. 23)

DVolume level indication

The frequency display shows the volume level while setting

as shown below.

[∫]

[√]

Shows volume level.

[PWR]

FM SKIPP

Frequency indication

Opening message ‘ICOM’

Voltage indication

Indication Audio level

0 (no sound)

19–23 (default)

24–27

28–30

31 (Maximum)

1–11

12–18

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 20 (1,1)

BASIC OPERATION

■Tuning step

When using the tuning dial to change

the frequency, or when a scan function

is activated, the frequency changes in

increments determined by the set tun-

ing step. Tuning steps can be selected

for each band. This transceiver has 13

tuning steps as follows:

•5 kHz •6.25 kHz •8.33 kHz

•9 kHz •10 kHz •12.5 kHz

•15 kHz •20 kHz •25 kHz

•30 kHz •50 kHz •100 kHz

•200 kHz

DSetting the tuning step

qPush [9 TS] for 1 sec. to enter tuning

step set mode.

•“TS” appears.

wRotate [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.

ePush [9 TS] or [VFO] to exit.

DMHz tuning step

This is useful to change the frequency

rapidly.

qSelect VFO mode with [VFO].

wPush [VFO MHz] for 1 sec. to select

1 MHz tuning step.

ePush [VFO MHz] for 1 sec. again to

select 10 MHz tuning step, if re-

quired.

rRotate [DIAL] to select the desired

MHz frequency.

tPush [VFO] to exit MHz tuning step.

FM SKIPP

1 MHz tuning step

10 MHz tuning step

5 kHz tuning step

20 kHz tuning step

[9 TS]

[DIAL]

[VFO MHz]

BASIC OPERATION

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 21 (1,1)

4BASIC OPERATION

DSetting the frequency with keypad

qSelect VFO mode with [VFO].

wPush the desired numeral buttons until inputting 1 kHz digit to set the frequency.

•When you want to change the 100 kHz digit and below, push [•] ﬁrst, then the numeral but-

tons.

•Acceptable digits for the 1 kHz digit depend on the 10 kHz digit.

■

Setting a frequency

Push numeral keys and [•] to input the

desired frequency.

•Frequency can be set irrelevant to 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.

V D

TONE

H/L

DUP

SKIP

M.N

RIT

T.SCAN

SET

DTMF.M

[VFO]

TONE

DUP

DTMF.M

RIT

M.N

SET

DTMF.M

SKIPP

RIT

DUP

SKIP

H/L

DUP

SET

DTMF.M

RIT

SKIPP

•Setting to 0.684 MHz

•Setting to 433.580 MHz

•Changing 100 kHz and

below.

Setting 433.580 MHz to

433.240 MHz.

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 22 (1,1)

BASIC OPERATION

■Mode selection

DVFO mode

VFO mode is used for setting a desired

frequency within the band range.

➥Push [VFO] to select VFO mode.

•Pushing [VFO] in VFO mode toggles

VFO A and B.

What is VFO?

VFO is an abbreviation of Variable Fre-

quency Oscillator. Frequencies for

transmitting and receiving are gener-

ated and controlled by the VFO.

DMemory mode

Memory mode is used for operation of

memory channels which have pro-

grammed frequencies.

➥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 for most-often-

used frequencies for quick recall. TV

and weather (U.S.A. version only)

channels can be selected with

[CALL/TV].

➥Push [CALL/TV] to select a call, TV

and weather channel in sequence.

[MR]

Memory channel

Memory bank

A00–Y99 appear when a

memory bank is programmed.

[VFO]

VFO A

VFO B

FM SKIPP

BASIC OPERATION

FMW

[CALL/TV]

Call channel

TV channel

Weather channel (U.S.A. only)

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 23 (1,1)

■Operating band and receive mode selection

DSelecting the operating

band

The transceiver can receive the BC

(broadcast) bands, 5M band, 50M

band, FM broadcast band, Air band, 2

m (VHF) band, 220M band, 300M band,

440M (UHF) band or 800M band.

*Frequency coverage depends on versions.

qSelect VFO mode with [VFO].

wPush [BAND] several times to select

the desired band.

•Rotating the tuning dial while pushing

[BAND] also selects the operating band.

[VFO]

[BAND]

4BASIC OPERATION

DSelecting the receive mode

Receive modes are determined by the

physical properties of the radio signals.

The transceiver has 3 receive modes:

FM, AM and WFM modes. Typically, AM

mode is used for the avionics band

(108–135.975 MHz) and WFM is used

for FM broadcast stations

(76–107.75 MHz).

When pushing [PTT], a beep tone

sounds indicating the mode is not

FM mode. The transceiver cannot

transmit in AM or WFM mode.

FM SKIPP

FM SKIPPW

AM SKIPP

FM mode

WFM mode

AM mode

MODE

SCAN

MODE

SCAN

MODE

SCAN

Push

to toggle the

operating

mode.

SKIPP

SKIPP SKIPP

SKIPPSKIPP

SKIPP

SKIPPAM FM

BAND

SKIPP

FMW

BC (broadcast) bands 5M bands 50M band* WFM bands*

800M band

UHF band* 300M band

Air bands*

VHF band

220M band*

0.495–1.620 MHz 1.625–34.995 MHz 35.000–75.995 MHz*

108.000–135.975 MHz

76.000–107.750 MHz*

550.000–999.990 MHz

383.000–549.995 MHz 255.000–383.975 MHz 220.000–254.975 MHz 136.000–221.975 MHz

Push [BAND] several times to

select the desired band.

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 24 (1,1)

■Setting squelch level

BASIC OPERATION

The squelch circuit mutes the received

audio signal depending on the signal

strength. The transceiver has 9 squelch

levels, a continuously open setting and

an automatic squelch setting.

DSetting squelch level

qWhile pushing and holding [SQL], ro-

tate [DIAL] one-click to display the

currently squelch level.

wRotate [DIAL] successively to adjust

the squelch level.

•“LEVEL1” is loose squelch and

“LEVEL9” is tight squelch.

•“AUTO” indicates automatic level adjust-

ment with a noise pulse count system.

eRelease [SQL] to return to the previ-

ous indication.

[Squelch level indication]

DMonitor function

This function is used to listen to weak

signals or to open the tone squelch

manually.

➥Push and hold [SQL] to monitor the

operating frequency.

The [SQL] switch can be set as a

monitor ON/OFF switch in set mode.

(p. 60)

[SQL]

Blinks while monitoring.

FM SKIPP

BASIC OPERATION

[SQL]

[DIAL]

Indication Squelch level

Open

Automatic (default)

Level 1 (loose)

Level 2

Level 3

Level 4

Level 5

Level 6

Level 7

Level 8

Level 9 (tight)

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 25 (1,1)

4BASIC OPERATION

■Receiving

DSetting volume level

➥Push [Y] or [Z] to set the desired audio level.

•Rotating the tuning dial while pushing [Y] or [Z] also sets the

audio level.

DSetting squelch level

qWhile pushing [SQL], rotate [DIAL] to select the squelch

level.

•“LEVEL1” is loose squelch and “LEVEL9” is tight squelch.

wRelease [SQL] to return to the previous indication.

DExchange [DIAL] and [YY]/[ZZ] 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 functions are exchanged.

[DIAL]

[Y]/[Z]

Default setting

Frequency setting

Memory channel setting

Scan direction setting

Set mode setting

Volume setting

Exchanged setting

Frequency setting

Memory channel setting

Scan direction setting

Set mode setting

VOL

SKIPP

[DIAL]

[∫]

[√]

Appears when the functions

are exchanged.

[1 V D]

[DIAL]

[SQL] [∫]

[√]

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 26 (1,1)

BASIC OPERATION

DReceiving FM broadcast

[EXAMPLE]: Receiving 88.200 MHz.

qSelect VFO mode with [VFO].

wFor direct frequency input, push [8], [8], [•], [2], [0], [0].

•Skip eand tin this case.

ePush [BAND] several times to select the FM broadcast

band.

•Default frequency (FM broadcast band): 76.000 or 88.000 MHz

rPush [MODE] several times to select WFM mode if re-

quired.

tRotate [DIAL] to set 88.200 MHz.

yWhen a signal is received:

➥The TX/RX indicator lights green.

➥Squelch opens and audio is emitted from the speaker.

➥The S/RF indicator shows the relative signal strength.

DReceiving amateur bands

[EXAMPLE]: Receiving 145.600 MHz.

qSelect VFO mode with [VFO].

wFor direct frequency input, push [1], [4], [5], [•], [6], [0], [0].

•Skip eand tin this case.

ePush [BAND] several times to select the 144 MHz band.

•Default frequency (144 MHz band): 145.000 MHz

rPush [MODE] several times to select FM mode if required.

tRotate [DIAL] to set 145.600 MHz.

yWhen a signal is received:

➥The TX/RX indicator lights green.

➥Squelch opens and audio is emitted from the speaker.

➥The S/RF indicator shows the relative signal strength.

FM SKIPP

[DIAL]

[VFO]

[MODE]

[BAND] S meter

FM SKIPPW

[DIAL]

[VFO]

[MODE]

[BAND] S meter

BASIC OPERATION

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 27 (1,1)

4BASIC OPERATION

DReceiving TV channels

Available TV channels depends on the version. Refer to the

TV frequency table (p. 83) for details. Some channels are set

as skip channels. Refer to the skip channel setting (p. 26) for

details. TV channel frequency and skip setting can be re-pro-

grammed via the CS-T90A cloning soft ware, ask your dealer

for details.

qSelect TV mode with [CALL/TV].

•Pushing [CALL/TV] toggles a call, TV and weather channel

(p. 77; U.S.A. version only) in sequence.

wRotate [DIAL] to select the desired TV channel.

•Rotate [DIAL] while pushing [BAND] to select all TV channels.

eWhen a signal is received:

➥The TX/RX indicator lights green.

➥Squelch opens and audio is emitted from the speaker.

➥The S/RF indicator shows the relative signal strength.

Pushing [CALL/TV] selects the call channel and does not

return to the previous TV channel even if the previous

mode (VFO or memory) is selected from TV channel.

FMW

[BAND]

[DIAL]

[CALL/TV]

TV mode indicationTV channel indication

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 28 (1,1)

BASIC OPERATION

DTV skip scan

The transceiver automatically programs the receivable TV

channels as non-skip channels and others as skip channels.

qSelect TV mode with [CALL/TV].

•Pushing [CALL/TV] selects a call, TV and weather channel

(U.S.A. version only) in sequence.

wPush [MODE SCAN] for 1 sec. to start TV skip scan.

•The transceiver automatically scans all TV channels.

eWhen the scan is ﬁnished:

➥The receivable TV channels have been programmed as non-

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 can be set manually.

qSelect TV mode with [CALL/TV].

•Pushing [CALL/TV] selects a call, TV and weather channel

(U.S.A. version only) in sequence.

wRotate [DIAL] while pushing [BAND] to select the desired

TV channel.

ePush [5 SKIP] for 1 sec. to toggle the skip setting.

•“SKIP” appears when the channel is set as skip channel.

FM SKIPW

[BAND]

[DIAL]

[5 SKIP]

Skip indication

FM SKIPW

[BAND]

[DIAL]

[CALL/TV]

[MODE SCAN]

BASIC OPERATION

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 29 (1,1)

4BASIC OPERATION

■RIT function

To compensate for the off frequency of a transmitting station,

the transceiver has receive incremental tuning for receiving fre-

quencies above 630.000 MHz. The RIT function cannot be used

in TV mode and automatically cancelled below 630.000 MHz.

The receive incremental tuning (RIT) shifts only the receive

frequency within approx. ±5 kHz.

qSet an operating frequency above 630.000 MHz.

wPush [0 RIT] for 1 sec. to select the RIT set mode item.

•If “ATT” appears, rotate [DIAL] to select “RIT.”

ePush [0 RIT] again to select the RIT set mode.

rRotate [DIAL] to adjust the shift frequency.

•–5 to +5 appears while setting the shift frequency.

tPush [VFO] to exit the RIT set mode.

■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-

tion, are near your location. The attenuation level is approx.

10 dB.

qPush [0 RIT] for 1 sec. to select the ATT set mode item.

•“RIT” or “ATT” appears. If “RIT” appears, rotate [DIAL] to select

“ATT.” When the operating frequency is 629.995 MHz or below,

ATT set mode is automatically selected.

wPush [0 RIT] again to select the ATT set mode.

ePush [VFO] to exit the ATT set mode.

Attenuator is in use

FM SKIPP

ATT

ATT appears

If the operating frequency is

629.995 MHz or below, this

menu does not appear.

RIT/ATT selection menu Attenuator set mode

FM SKIPP

RIT indication

RIT frequency adjustment

Approx. +3 kHz shift

RIT function example

RIT function OFFRIT set mode

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 30 (1,1)

BASIC OPERATION

■Transmitting

DAmateur band operation

CAUTION: Transmitting without

an antenna may damage the trans-

ceiver.

Make sure a charged battery pack or al-

kaline batteries are installed. (p. 1)

IMPORTANT: To maximize the read-

ability of your transmitted signal, pause

a few sec. after pushing [PTT], hold the

microphone 1 to 2 inches (2.5 to 5 cm)

from your mouth and speak at a nor-

mal voice level.

Protect circuit interrupts the output

power when over 11.5 V DC is con-

nected.

DOperating band and

frequency setting

qSelect VFO mode with [VFO].

wPush [BAND] several times to select

the desired amateur band.

•Rotating the tuning dial while pushing

[BAND] also selects the operating band.

eSet an operating frequency with the

tuning dial. (p. 19)

•To input the frequency directory, push

[4], [3], [5], [•], [6], [8] and [0] for the ex-

ample below.

DSelecting output power and

transmitting

qPush [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” appears when low output power

is selected. If “LOW” does not appear,

high output power is selected.

wPush and hold [PTT] to transmit,

then speak into the microphone.

•TX/RX indicator lights red.

•The S/RF indicator shows the output

power selection.

•Approx.

output power:

4.5 W/0.5 W with 11 V DC (w/CP-19)

5.0 W/0.5 W with BP-217

0.1 W with BP-216 (ﬁxed to low power)

The output power is fixed to low

while operating with battery case.

eRelease [PTT] to receive.

DFM narrow mode (transmit only)

The transceiver has narrow deviation

(±2.5 kHz) mode. Set narrow mode in

expanded set mode 2, if desired. (p. 66)

FM SKIPP

LOW

When LOW power is selected.

When HIGH power is selected.

FM SKIPP

Lights

red while

transmitting

[3 H/L]

[BAND]

Microphone

[DIAL]

[PTT]

BASIC OPERATION

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 31 (1,1)

4BASIC OPERATION

■Repeater operation

When using a repeater, the transmit frequency is shifted from

the receive frequency by the offset frequency. (p. 31) It is con-

venient to program repeater information into memory chan-

nels. (p. 37)

qSet the receive frequency (repeater output frequency).

wSet the shift direction of the transmit frequency. (–DUP or

DUP; see p. 31 for details.)

•When the auto repeater function is in use (U.S.A. and Korea ver-

sions only), this selection and step eare not necessary. (p. 33)

ePush [2 TONE] for 1 sec. to activate the subaudible tone

encoder, according to repeater requirements.

•“T” appears. Refer to p. 65 for tone frequency settings.

rPush and hold [PTT] to transmit.

•The displayed frequency au-

tomatically changes to the

transmit frequency (repeater

input frequency).

•If “OFF” appears, check the

offset frequency or shift di-

rection. (p. 31)

tRelease [PTT] to receive.

yPush and hold [SQL] to check whether the other station’s

transmit signal can be directly received or not.

U.S.A. and Korea versions:

Auto repeater function uses the settings of the repeater

tone frequency and offset frequency.

FM DUP SKIPTP

While receiving While transmitting

FM DUP SKIPTP

“DUP” appears.

Station A Station B

Repeater

439.340 MHz

434.340 MHz 434.340 MHz

439.340 MHz

Uplink

Downlink

(transmitting freq.)

(receiving freq.)

Lights

red while

transmitting.

[PTT]

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 32 (1,1)

BASIC OPERATION

DChecking the repeater input signal

The transceiver can check whether the other station’s trans-

mit signal can be received directly or not.

➥Push and hold [SQL] to check whether the other station’s

transmit signal can be directly received or not.

•When the other station’s signal can be directly received, move to

a non-repeater frequency with simplex. (duplex OFF)

DOff band indication

If the transmit frequency is out of the 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 uses the setting of the offset fre-

quency.

➲CONVENIENT

Tone scan function: When you don’t know the subaudible

tone used for a repeater, the tone scan is convenient for de-

tecting the tone frequency.

➥Push [7 T.SCAN] for 1 sec. to activate. See p. 73 for more

information.

DUP T

FM SKIPP

SQL

FM DUP SKIPTP

[SQL]

Indication while receiving

Receives –5 MHz shift frequency

BASIC OPERATION

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 33 (1,1)

4BASIC OPERATION

■Duplex operation

DSetting offset frequency

When communicating through a repeater, the transmit fre-

quency is shifted from the receive frequency by an amount

determined by the offset frequency.

qSelect VFO mode or desired memory channel to be pro-

grammed.

wPush [8 SET] for 1 sec. to enter set mode.

eRotate [DIAL] until “OFFSET” appears.

rPush [8 SET] again to select offset frequency.

tRotate [DIAL] to set the desired offset frequency.

•The tuning step becomes the selected tuning step.

•Push [VFO MHz] for 1 sec. to use the MHz tuning step, if desired.

yPush [VFO] to exit set 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”.

•“–DUP” or “DUP” indicates the transmit frequency for minus shift

or plus shift, respectively.

•When offset frequency

is 500 kHz.

U.S.A. and Korea versions:

Auto repeater function has priority over the manual duplex

setting. If the frequency changes after setting, the auto re-

peater function may change the duplex setting.

FM DUP SKIPTP

–Duplex example

+Duplex example

Receiving

Transmitting

[SQL]

[4 DUP]

[DIAL]

[8 SET]

[VFO MHz]

5.0 MHz offset

20.0 MHz offset

No offset frequency

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 34 (1,1)

BASIC OPERATION

■Split operation

Split frequency operation allows you to transmit and receive

on two different frequencies in the same band. The split fre-

quency operation is performed using 2 frequencies one in

VFO A and one in B.

DSetting split frequency operation

qPush [8 SET] for 1 sec. to enter set mode.

wRotate [DIAL] until “EXP2” appears.

ePush [8 SET] to select expanded set mode 2.

rRotate [DIAL] to turn the expanded set mode 2 ON.

tPush [8 SET] to exit expanded set mode 2.

yRotate [DIAL] until “SPLIT” appears.

uPush [8 SET] to select split function.

iRotate [DIAL] to select split function ON or OFF.

oPush [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

qPush [VFO] several times to select VFO A.

•Pushing [VFO] toggles VFO A and B.

wPush [BAND] several times to select the 144 MHz band.

ePush [MODE] several times to select FM mode.

rSet the operating frequency to 145.240 MHz with the tun-

ing dial.

tPush [VFO] to select VFO B.

yPush [BAND] several times to select the 144 MHz band.

uPush [MODE] several times to select FM mode.

iSet the operating frequency to 145.340 MHz.

oPush [PTT] to start the split frequency operation.

FM SKIPP

SKIPPFM

[DIAL]

[PTT]

[BAND]

[MODE]

[VFO]

[8 SET]

VFO A

VFO B

FM SKIPP

BASIC OPERATION

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 35 (1,1)

4BASIC OPERATION

■Auto repeater function

(U.S.A. and Korea versions only)

The U.S.A. and Korea versions automatically activate the re-

peater settings (duplex ON/OFF, duplex direction, tone en-

coder ON/OFF) when the operating frequency falls within or

outside of the general repeater output frequency range. The

offset and repeater tone frequencies are not changed by the

auto repeater function, reset these frequencies, if necessary.

DFrequency range and offset direction

•U.S.A. version

•Korea version

qSelect VFO mode with [VFO].

wPush [8 SET] for 1 sec. to enter set mode.

eRotate [DIAL] until “AUTO RP” appears.

rPush [8 SET] to select auto repeater set mode.

tRotate [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 repeater function is turned OFF.

Korea version:

•“ON”Activates duplex and tone.

•“OFF”Auto repeater function is turned OFF.

yPush [VFO] to exit set mode.

DUPDUP

Duplex activated only. Duplex and tone activated.

Duplex and tone activated.Auto repeater function

is turned OFF.

FREQUENCY RANGE SHIFT DIRECTION

439.000–440.000 MHz “–DUP” appears

FREQUENCY RANGE SHIFT DIRECTION

151.620–151.995 MHz

152.500–152.995 MHz

153.500–153.995 MHz

“–DUP” appears

147.000–147.395 MHz “DUP” appears

442.000–444.995 MHz “DUP” appears

447.000–449.995 MHz “–DUP” appears

145.200–145.495 MHz

146.610–146.995 MHz “–DUP” appears

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 36 (1,1)

BASIC OPERATION

■1750 Hz tone

Some European repeaters require a 1750 Hz tone to be ac-

cessed. For such European repeaters, perform the following.

•This tone can be use as a ‘Call signal’out of Europe countries.

qPush [• DTMF.M] for 1 sec. to select DTMF memory.

wRotate [DIAL] counter-clockwise until “T-CALL” appears.

ePush [VFO] to exit DTMF memory.

rSet the receive frequency (repeater output frequency).

tSet the shift direction of the transmit frequency. (–DUP or

DUP; see p. 31 for details.)

yWhile pushing [PTT], push [SQL] for 1 to 2 sec. to transmit

a 1750 Hz tone burst signal.

•If “OFF” appears, check the offset frequency or shift direction.

(p. 31)

•The displayed frequency automatically changes to the transmit

frequency (repeater input frequency).

uPush and hold [PTT] to transmit.

iRelease [PTT] to receive.

oPush and hold [SQL] to check whether the other station’s

transmit signal can be received directly or not.

BASIC OPERATION

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 37 (1,1)

5MEMORY/CALL CHANNELS

■General

The transceiver has 500 memory channels, 50 scan edge

channels and 5 call channels for storage of often-used fre-

quencies.

Memory channels can be named with 6 characters and as-

signed to 18 banks.

DMemory/call channel contents

The following information can be programmed into memory

or call channels:

•Operating frequency (p. 19)

•Receive mode (p. 21)

•Tuning step (p. 18)

•Duplex direction (DUP or –DUP) with an offset frequency

(p. 31)

•Subaudible tone encoder, tone squelch or DTCS squelch

ON/OFF (pgs. 29, 71)

•Subaudible tone and tone squelch frequencies (p. 70)

•DTCS code with code phase mode (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 example

Mch 000 151.000 MHz

Mch 001 145.000 MHz

Mch 002 430.000 MHz

*Mch 003–499 are blank channels.

0A/0B–

24A/24B

(Scan edge

channel)

•Program scan edge channel

25 pairs (50 channels)

•Default scan edge example

0A: 1110.495 MHz 0B: 440.000 MHz

1A: 1150.000 MHz 1B: 1152.000 MHz

2A: 1144.000 MHz 2B: 1146.000 MHz

3A: 1430.000 MHz 3B: 1440.000 MHz

*4A/4B–24A/24B are blank channels.

C0–C4

(Call channel)

•Calling channel for amateur bands

•

Can be used as regular memory channel

•Default call channel example

C0 151.000 MHz

C1 145.000 MHz

C2 430.000 MHz

*C3 and 4 are blank channels.

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 38 (1,1)

MEMORY/CALL CHANNELS

■Calling up memory channels

Memory channels can be selected with

the [DIAL] and keypad.

•Blank channels cannot be selected via

[DIAL].

•Blank channels can be selected via key-

pad.

•Previously selected channels appear

when the wrong memory channel num-

ber is entered.

DSelecting with tuning dial

qPush [MR] to select memory mode.

wRotate [DIAL] to select the desired

memory channel.

DSelecting with keypad

qPush [MR] to select memory mode.

wPush the desired numeral keys to

select the desired memory channel.

•Selecting memory channel 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].

•Selecting memory channel 005.

Push [5] and [MR].

•Selecting memory channel 024.

Push [2], [4] and [MR].

DCheck contents of all

memory channels

qPush [MR S.MW] for 1 sec. to enter

memory write condition.

•Memory channel readout ﬂashes.

wRotate [DIAL] to check the desired

memory channel.

Rotating [DIAL] while pushing

[BAND] also selects all memory

channels.

Memory mode indication

Memory channel number

Appears

[DIAL]

[MR S.MW]

V D

TONE

H/L

DUP

SKIP

M.N

RIT

T.SCAN

SET

keypad

MEMORY/CALL CHANNELS

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 39 (1,1)

5MEMORY/CALL CHANNELS

Program the desired frequency into a memory channel, call

channel or scan edge channel as follows.

The memory channels are shared with all bands. Memory

channels 003–499 are blank (non-programmed) channels as

a factory setting.

DProgramming a memory channel

[EXAMPLE]: 433.520 MHz into Mch 11

qSelect VFO mode with [VFO].

wSet the desired frequency:

➥Select the desired band with [BAND].

➥Set the frequency using [DIAL].

➥Set other data (e.g. offset frequency, duplex direction,

subaudible tone frequency, etc.), if required.

ePush [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 will be overwritten.

rRotate [DIAL] to select the desired channel.

•Call channels (C0–C4), VFO (VF) and scan edge channels

(0A/0B–24A/24B), as well as regular memory channels, can be

programmed in this way.

tPush [MR S.MW] for 1 sec. to program.

[DIAL]

[MR S.MW]

[VFO]

[BAND]

FM SKIPPFM SKIPP

e Push [MR S.MW] for 1 sec. r Select the desired channel. t Push [MR S.MW] for 1 sec.

VFO mode is selected after writing.

“ ” and memory channel

readout blinks.

q, w Set the frequency.

■

Programming m

emory channels

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 40 (1,1)

MEMORY/CALL CHANNELS

DAuto memory channel increment

While programming a memory channel, the next memory

channel can be selected automatically. This is convenient

when programming memory channels one after another.

➥Keep pushing [MR S.MW] for 2 sec. or more, at step tof

the left section, to select the next memory channel auto-

matically.

■Transferring memory

contents to VFO

This is convenient when operating around a memory or call

channel.

qPush [VFO] several times to select VFO A or B to be trans-

ferred.

wPush [MR] to select memory mode.

eSet the desired memory channel with [DIAL].

•Call or scan edge channel contents can be transferred in the

same manner. Select a call channel in this case.

rPush [MR S.MW] for 2 sec. to transfer.

[EXAMPLE]: Transferring memory channel 26 to VFO A.

S.MW

FM DUP SKIPT

FM DUP T

[DIAL]

[MR]

Select the desired Mch.

for 2 sec.

Transfer to VFO.

FM SKIPP

Keep pushing [MR S.MW].Push [MR S.MW] for 1 sec.

VFO is selected.

Next memory channel is

automatically selected.

MEMORY/CALL CHANNELS

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 41 (1,1)

5MEMORY/CALL CHANNELS

■Copying memory contents

This is convenient when programming memory contents into

a scan edge channel or call channel.

•Call or scan edge channel contents can be copied in the same

manner.

Push [MR S.MW]

to select memory mode.

wSelect the memory channel to be copied with [DIAL].

Push [MR S.MW] for 1 sec.

•Memory channel indicator and number blinks.

•Do not hold [MR S.MW] for more than 2 sec., otherwise the pre-

viously selected VFO will be overwritten.

rRotate [DIAL] to select the target memory channel.

tPush [MR S.MW] for 2 sec. to copy.

■Memory names

Each memory, scan edge and call 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.

DMemory name input

qPush [MR] to select memory mode.

wSet the desired memory channel with [DIAL].

Push [MR S.MW] for 1 sec. to indicate the memory channel.

•Memory channel indicator ﬂashes.

•Do not hold [MR S.MW] for more than 2 sec., otherwise the pre-

viously selected VFO will be overwritten.

rPush [CALL/TV] several times to select “NAME.”

•Memory name screen appears. The 1st character of the name

and “X” ﬂashes.

•Previously programmed name appears, if programmed.

FM DUP T

[DIAL]

[MR]

Select a channel to copy.

Select desired channel.

Write into the channel.

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 42 (1,1)

MEMORY/CALL CHANNELS

tRotate the tuning dial to select the desired character.

•See the following list for available characters.

yPush [BAND] to advance the cursor.

•Rotating the tuning dial while pushing [BAND] also selects the

cursor.

uRepeat tand yuntil the desired name is input.

iPush [VFO] to program the name.

oIf you want to set other channels, repeat wthrough ito

set the desired 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. to toggle the memory name indi-

cation ON and OFF.

•Frequencies are displayed for the memory channels which do

not have memory names. You cannot display both.

•To change the memory name, program a new memory name

again.

FM DUP T

[DIAL]

[BAND]

[MR]

[VFO]

[CALL/TV]

[8 SET]

Memory name ON

Memory name indication

Space

FM DUP T FM DUP T

MEMORY/CALL CHANNELS

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 43 (1,1)

5MEMORY/CALL CHANNELS

■Memory bank

The transceiver has 500 memory channels that can be as-

signed to 18 banks for faster memory access, memory

arrangement, etc.

Each bank (A–H, J, L, N–R, T, U and Y) can be assigned up

to 100 memory channels.

Memory bank is used for arrangement of a memory chan-

nel. When you edit the original memory channel contents,

the memory bank contents are updated automatically.

DSetting memory bank

qPush [MR] to select memory mode.

wSet the desired memory channel with [DIAL].

ePush [MR S.MW] for 1 sec. to indicate a memory channel.

•Memory channel indicator ﬂashes.

•Do not hold [MR S.MW] for more than 2 sec., otherwise the pre-

viously selected VFO will be overwritten.

rPush [CALL/TV] several times to select “BANK.”

•Memory bank screen appears.

•Previously programmed memory bank appears, if programmed.

tPush [BAND] to select a memory bank.

•Rotating the tuning dial while pushing [BAND] also selects the

memory bank.

•Select “-- -- -- --” to clear the memory bank information.

yRotate the tuning dial to select the desired channel.

•Previously used memory bank channel cannot be selected.

uPush [VFO] to program the memory bank channel.

000 51.000 MHz

001 145.000 MHz

002 433.000 MHz

003 145.120 MHz

004 435.340 MHz

005 145.040 MHz

006 433.560 MHz

007 850.480 MHz

008 52.560 MHz

009 1.620 MHz

010 50.140 MHz

011 118.200 MHz

012 76.500 MHz

013 118.125 MHz

014 145.540 MHz

015 369.850 MHz

016 434.720 MHz

017 848.98750 MHz

018 852.720 MHz

019 75.795 MHz

020 127.700 MHz

021 146.300 MHz

499 119.870 MHz

A00–99 144 MHz Repeater*

B00–99 440 MHz Repeater*

C00–99 VHF air frequencies

D00–99

E00–99

F00–99

G00–99

H00–99

J00–99

L00–99

N00–99

O00–99

P00–99

Q00–99

R00–99

T00–99

U00–99

Y00–99

Mch contents Memory bank contents

A00

B00

A01

B01

C00

C01

A02

B02

C02

A03

C03

Memory bank

*Above sample is collected 144

MHz Repeater channels to bank A

and 440 MHz Repeater channels

to bank B.

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 44 (1,1)

MEMORY/CALL CHANNELS

Push [MR] to select memory mode.

w Select Mch with [DIAL].

e Push [MR S.MW] for 1 sec. to

indicate Mch.

VFO mode

Memory channel indicator flashes.

Release [CALL/TV].

Push

[VFO].

Memory bank is programmed and

memory mode is selected.

Memory bank indication

Memory channel indication

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 bank and

channel.

FM SKIPP

Selected memory channel.

[DIAL]

[BAND]

[MR S.MW]

[CALL/TV]

➥Push [BAND] to select the memory bank in sequence.

➥Pushing [MR] toggles the memory channel indication

and memory bank indication.

MEMORY/CALL CHANNELS

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 45 (1,1)

5MEMORY/CALL CHANNELS

■Memory clear

Unwanted memory channels can be cleared (erased). Before

clearing a memory channel make sure it is no longer needed

as cleared memories cannot be recalled. Scan edges (0A/0B)

cannot be cleared.

qPush [MR S.MW] for 1 sec. to indicate a memory channel.

•Memory channel indicator ﬂashes.

•Do not hold [MR S.MW] for more than 2 sec., otherwise the pre-

viously selected VFO or memory channel will be overwritten.

wSelect the memory channel to be cleared with [DIAL].

•Scan edges (0A/0B) cannot be cleared.

ePush [CALL/TV] several times to select “CLEAR.”

rPush [MR S.MW] for 1 sec. to clear the selected memory

channel.

•3 beeps sound, then the frequency is cleared.

tPush [VFO] to return to the previous mode.

[DIAL]

[VFO]

[CALL/TV]

[MR S.MW]

FMAM SKIPP

VFO mode Memory mode

FM DUP T

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 46 (1,1)

MEMORY/CALL CHANNELS

■Call channel

5 call channels are available to store the most-often-used fre-

quencies for quick recall.

The call channels can be programmed in a similar manner to

memory channel programming.

➥Select C0–C4 for programming call channel 0–4 in step r

in “Programming a memory channel.” (p. 37)

DSelecting a call channel

qPush [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.

wRotate [DIAL] counterclockwise or clockwise to select a

programmed call channel.

•Rotating [DIAL] while pushing [BAND] selects all call channels.

ePush [VFO] or [MR] to return to the previously selected

mode.

•Call channel example (depends on version)

[DIAL]

[BAND]

[MR]

[CALL/TV]

FM FM

50M band call channel UHF band call channel

VHF band call channel

MEMORY/CALL CHANNELS

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 47 (1,1)

6SCAN OPERATION

■Scan types Up to 25 programmed scan ranges (0A/0B to 24A/24B), full

scan, band scan and memory bank scan provide scanning

versatility. Each scan can have skip channels programmed.

DVFO scans

FULL SCAN (p. 46)

Repeatedly scans all fre-

quencies over the entire re-

ceive range.

•Some frequency ranges

are restricted depending on

versions.

BAND SCAN (p. 46)

Repeatedly scans all fre-

quencies over the entire se-

lected band.

PROGRAMMED SCAN (p. 46)

Repeatedly scans between

two user-programmed fre-

quencies. Used for checking

for frequencies within a

specified range such as re-

peater output frequencies,

etc.

DMemory scans

MEMORY SCAN (p. 48)

Repeatedly scans all mem-

ory channels except skip

channels.

FULL BANK SCAN (p. 48)

Repeatedly scans memory

channels except skip chan-

nels within all memory banks

(i.e. memory channels,

A00–Y99).

MEMORY BANK SCAN (p. 48)

Repeatedly scans memory

channels except skip chan-

nels within a memory bank

(i.e. memory channels,

A00–A99).

A00

A01 CH

A02 CH

A03

A04

A05

A06

A99

SKIP

A00

A01 CH

A02 CH

B00

C00

D00

E00

Y00

SKIP

000

001 CH

002 CH

003

004

CH-005

006

499

SKIP

Jump

Lower

scan edge

(0A–24A)

Upper

scan edge

(0B–24B)

Scan

Jump

Lower

band edge

Upper

band edge

Scan

Jump

Start

Lower

edge

Upper

edge

Scan

Jump

P SKIPP SKIP

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 48 (1,1)

SCAN OPERATION

■VFO scan

The following scans are available for the VFO scan.

FULL SCAN

Repeatedly scans all frequencies over the entire receive

range.

•Some frequency ranges are restricted depending on versions.

BAND SCAN

Repeatedly scans all frequencies over the entire selected

band.

PROGRAMMED SCAN

Repeatedly scans between two user-programmed frequen-

cies. Used for checking for frequencies within a specified

range such as repeater output frequencies, etc.

Skip frequencies are not scanned when the frequency skip

function is in use. (“P SKIP” appears)

If the same frequencies are programmed into a pair of

scan edges, programmed scan does not start.

For programmed scan, scan edges must be programmed

in advance. Program scan edges in the same manner of

programming a memory channel. (p. 37)

qSelect VFO mode with [VFO].

wPush [5 SKIP] for 1 sec. to toggle the frequency skip func-

tion ON or OFF.

•“P SKIP” appears when the frequency skip function is turned ON.

eSet the squelch level, if desired.

rWhile pushing [MODE SCAN], rotate [DIAL] to select the

desired scan range.

•“ALL” for full scan, “BAND” for band scan or “PROG 0–24” for

programmed scan.

tRelease [MODE SCAN] to start the scan.

•Decimal point ﬂashes while scanning.

•“P SKIP” ﬂashes when the frequency skip function is turned ON.

•To change the scanning direction, rotate [DIAL].

•If the pocket beep or DTCS beep function is activated, the trans-

ceiver automatically selects the tone squelch or DTCS squelch

function when a scan starts.

yTo stop the scan, push [VFO].

FM SKIPP

Full scan Band scan

Programmed scan Scanning example

Flashes while scanning.

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 49 (1,1)

6SCAN OPERATION

■Frequency skip function

Unwanted frequencies can be skipped and programmed as

skip channels when full scan, band scan or programmed scan

is pausing.

qStart a VFO scan. (p. 46)

wWhile receiving an unwanted signal and scan pauses,

push [5 SKIP] for 1 sec. to program the received frequency

as a skip frequency.

•The transceiver emits 3 beeps and the scan resumes.

•Non-programmed memory channels (blank channels) are used

for skip frequency programming in reverse sequence.

•Do not release [5 SKIP] before 1 sec., otherwise, scan stops and

the transceiver enters frequency setting condition.

To scan the skip frequency after programming, cancel the

skip information 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 frequency skip scan. These

are useful to speed-up the scan interval.

qSelect memory mode with [MR].

wRotate [DIAL] to select memory channel to set the skip in-

formation.

ePush [5 SKIP] for 1 sec. one or more times to select con-

dition.

•“OFF” for no skipping of channels, “SKIP” for memory skip scan

or “P SKIP” for frequency skip scan and memory skip scan.

“P SCAN” setting is effective when the frequency skip func-

tion is turned ON. (p. 46)

FM SKIPP

Skip indication

FM SKIPP

Push [5 SKIP] for 1 sec. to program

the frequency as a skip frequency.

Blank channels are used in

reverse sequence.

Flashes while scanning.

When scan pauses.

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 50 (1,1)

SCAN OPERATION

■Memory scan

Memory scan repeatedly scans all memory channels except

skip channels.

qSelect memory mode with [MR].

•Pushing [MR] toggles the memory channel and memory bank in-

dications.

wSet the squelch level, if desired.

ePush [MODE SCAN] for 1 sec. to start the memory scan.

•Decimal point ﬂashes while scanning.

•To change the scanning direction, rotate [DIAL].

•While receiving an unwanted signal and scan pauses, push [5

SKIP] for 1 sec. to set the received channel as a skip channel.

rTo stop the scan, push [VFO].

■Memory bank scan

Memory bank scan repeatedly scans memory channels ex-

cept skip channels within all memory banks or a memory

bank.

qSelect memory bank mode with [MR].

•Pushing [MR] toggles the memory channel and memory bank in-

dications.

•Program 2 or more memory channels to a memory bank in ad-

vance.

wSet the squelch level, if desired.

eFor the memory bank scan, push [BAND] to select the de-

sired memory bank.

rWhile pushing [MODE SCAN], rotate [DIAL] to select the

desired scan range.

•“ALL” for full bank scan or “BANK” for memory bank scan.

tRelease [MODE SCAN] to start the memory scan.

•Decimal point ﬂashes while scanning.

•To change the scanning direction, rotate [DIAL].

yTo stop the scan, push [VFO].

FM SKIPP

FM SKIPPW

Scanning example Scanning example

Full bank scan Memory bank scan

Flashes while scanning.

FM SKIPP

Flashes while scanning.

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 51 (1,1)

6SCAN OPERATION

■Scan notes

DSquelch setting

Scanning stops when the squelch opens. Make sure the

squelch is set to the threshold point or desired squelch level.

➥Rotate the tuning dial while pushing [SQL] to select auto-

matic squelch (AUTO) or a level (1–9) where the noise is

muted. (p. 22)

DTuning dial while scanning

➥Scan starts in the upward direction. To change the scan-

ning direction, rotate [DIAL] clockwise or counterclockwise.

➥Rotating [DIAL] while pausing a scan resumes the scan

manually.

DTuning step while scanning

Tuning steps while scanning becomes the selected tuning

step. Reset the tuning step before scanning, if necessary.

(p. 13)

DSkip function

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 frequency skip scan. These

are useful to speed-up the scan interval. (p. 48)

DWhen receiving a signal

The scan pauses according to the scan pause time (default:

10 sec.). It can be selected as a pause or timer scan

(2–20 sec.) in set mode. (p. 58)

The scan restarts after a signal disappears according to the

resume time (default: 2 sec.). It can be selected to 0–5 sec. or

‘hold’(indeﬁnitely) in set mode. (p. 58)

DScan stop beep

A beep sounds when a scan stops to confirm the scan de-

tects a signal. This function can be turned ON or OFF in ex-

panded set mode 1. (p. 62)

DScan stop LED

The keypad backlighting ﬂashes when a scan stops to con-

ﬁrm the scan detects a signal. This function can be turned ON

or OFF in expanded set mode 1. (p. 62)

DReceive indicator ON/OFF

The receive indicator can be turned ON or OFF in set mode.

(p. 59)

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 52 (1,1)

PRIORITY WATCH

■Priority watch types

Priority watch checks for signals on a frequency every 5 sec.

while operating on a VFO frequency or scanning. The trans-

ceiver has 6 priority watch types to suit your needs.

The watch resumes according to the selected scan resume

condition. See p. 58 for details.

MEMORY or CALL CHANNEL WATCH

While operating on a VFO frequency, priority watch checks

for a signal in the selected memory or call channel every 5

sec.

•A memory channel with skip information can be watched.

MEMORY SCAN WATCH

While operating on a VFO frequency, priority watch checks

for signals in each memory channel in sequence.

•The memory skip function is useful 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 SCAN WATCH

While scanning in VFO mode, priority watch checks for sig-

nals in memory channels every 5 sec.

If the pocket beep function is activated, the transceiver au-

tomatically selects the tone squelch function when priority

watch starts.

■Priority alert

You can be alerted with beeps and a ﬂashing “S,” when a

priority watch detects a signal on the watching frequency.

qPush [8 SET] for 1 sec. to enter set mode.

wRotate [DIAL] until “PRIO” appears.

ePush [8 SET] to select the priority watch item.

rRotate [DIAL] to select the priority alert item. (“BELL”)

tPush [VFO] to exit set mode and start the priority watch.

PRIORITY WATCH

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 53 (1,1)

7PRIORITY WATCH

■Priority watch operation

DMemory channel watch

While operating on a VFO frequency, priority watch checks

for a signal in the selected memory channel every 5 sec.

•A memory channel with skip information can be watched.

qSelect VFO mode; then, set an operating frequency.

wSelect the desired memory channel.

ePush [8 SET] for 1 sec. to enter set mode.

rRotate [DIAL] until “PRIO” appears.

tPush [8 SET] to select the priority watch item.

yRotate [DIAL] to select the priority watch (“ON”) or priority

watch with alert (“BELL”).

uPush [VFO] to exit set mode and start the priority watch.

•The transceiver checks the memory channel frequency every

5 sec.

•The watch resumes according to the selected scan resume con-

dition. (p. 58)

iPush [VFO] while the display shows the VFO frequency to

stop the watch.

PRIO

FM SKIPP

Checks for a signal in the selected

memory channel every 5 sec.

While operating on a VFO

frequency

The watch stops on the selected

channel when a signal is received.

PRIO

SKIPP

[VFO]

[DIAL]

[8 SET]

Priority watch item

Priority watch with alert

Push [VFO] to start.

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 54 (1,1)

PRIORITY WATCH

DVFO scan with memory channel watch

While scanning in VFO mode, priority watch checks for sig-

nals in the selected memory channel every 5 sec.

•A memory channel with skip information can be watched.

qSelect the desired memory channel to be watched.

wSelect VFO mode.

ePush [MODE SCAN] for 1 sec. to start a VFO scan. (full

scan, band scan or programmed scan)

rPush [8 SET] for 1 sec. to enter set mode.

tRotate [DIAL] until “PRIO” appears.

yPush [8 SET] to select the priority watch item.

uRotate [DIAL] to select the priority watch (“ON”) or priority

watch with alert (“BELL”).

iPush [VFO] to exit set mode and start the priority watch.

oPush [VFO] while the display shows the VFO frequency to

stop the VFO scan and priority watch.

DMemory scan watch

While operating on a VFO frequency, priority watch checks

for a signal in memory channels every 5 sec.

qSelect VFO mode; then, set an operating frequency.

wSelect memory mode.

ePush [MODE SCAN] for 1 sec. to start a memory scan.

rPush [8 SET] for 1 sec. to enter set mode.

tRotate [DIAL] until “PRIO” appears.

yPush [8 SET] to select the priority watch item.

uRotate [DIAL] to select the priority watch (“ON”) or priority

watch with alert (“BELL”).

iPush [VFO] to exit set mode and start the priority watch.

oPush [VFO] while the display shows the VFO frequency to

stop the watch.

CH-000

CH-499

CH-400

CH-300

CH-200

CH-100

CH-006

CH-005

CH-004

CH-003

CH-002

CH-001

Memory scan

VFO frequency 5 sec.

Pauses when a signal

is received in Mch.

Watches Mch while

operating on VFO.

FM SKIPP

PRIO

VFO scan

Memory channel

5 sec.

Watches Mch while

VFO scanning.

Pauses when a signal

is received in Mch.

PRIO

145.100

145.120

145.140

145.200

145.220

145.240

145.260

51.000

850.000

433.500

433.000

145.280

PRIORITY WATCH

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 55 (1,1)

7PRIORITY WATCH

DVFO scan with memory scan watch

While scanning in VFO mode, priority watch checks for sig-

nals in memory channels every 5 sec.

qSelect memory mode.

wPush [MODE SCAN] for 1 sec. to start a memory scan.

•Start the memory scan ﬁrst, otherwise, memory scan watch does

not start.

ePush [8 SET] for 1 sec. to enter set mode.

rRotate [DIAL] until “PRIO” appears.

tPush [8 SET] to select the priority watch item.

yRotate [DIAL] to select the priority watch (“ON”) or priority

watch with alert (“BELL”).

uPush [VFO] to exit set mode and start the memory scan

watch.

iPush [MODE SCAN] for 1 sec. to start a VFO scan. (full

scan, band scan or programmed scan)

•VFO scan with memory scan watch is now activated.

•The scan or watch pauses when a signal is received on a VFO

frequency or watching memory channels.

oPush [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 checks

for a signal in the selected call channel every 5 sec.

qSelect VFO mode; then, set an operating frequency.

wPush [CALL/TV] to select call channel mode.

eRotate [DIAL] to select the desired call channel.

rPush [8 SET] for 1 sec. to enter set mode.

tRotate [DIAL] until “PRIO” appears.

yPush [8 SET] to select the priority watch item.

uRotate [DIAL] to select the priority watch (“ON”) or priority

watch with alert (“BELL”).

iPush [VFO] to exit set mode and start the priority watch.

oPush [VFO] while the display shows the VFO frequency to

stop the watch.

PRIO

SKIPPFM

PRIO

Checks for a signal in the selected

call channel every 5 sec.

While operating on a VFO

frequency

The watch stops on the selected

channel when a signal is received.

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 56 (1,1)

PRIORITY WATCH

DVFO scan with call channel watch

While scanning in VFO mode, priority watch checks for sig-

nals in the selected call channel every 5 sec.

qSelect VFO mode.

wPush [CALL/TV] to select call channel mode.

eRotate [DIAL] to select the desired call channel.

rPush [8 SET] for 1 sec. to enter set mode.

tRotate [DIAL] until “PRIO” appears.

yPush [8 SET] to select the priority watch item.

uRotate [DIAL] to select the priority watch (“ON”) or priority

watch with alert (“BELL”).

iPush [VFO] to exit set mode and start the priority watch.

oPush [MODE SCAN] for 1 sec. to start a VFO scan. (full

scan, band scan or programmed scan)

!0 Push [VFO] while the display shows the VFO frequency to

stop the VFO scan and priority watch.

VFO scan

Call channel

5 sec.

Watches call Ch

while VFO scanning.

Pauses when a signal

is received in call Ch.

PRIO

145.100

145.120

145.140

145.200

145.220

145.240

145.260

51.000

850.000

433.500

433.000

145.280

PRIORITY WATCH

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 57 (1,1)

8SET MODE

■Set mode

Set mode is used for programming in-

frequently changed values or conditions

of functions.

In addition, this transceiver has 2 ex-

panded set modes which are used for

programming more infrequently

changed values or conditions of func-

tions. When turning the expanded set

modes OFF, only half of the set mode

items are displayed for simple opera-

tion.

DEntering set mode

qPush [8 SET] for 1 sec. to enter set

mode.

wRotate [DIAL] until the desired item

appears.

ePush [8 SET] to select the set mode

item.

rRotate [DIAL] to select a set mode

item.

tPush [VFO] to exit set mode or push

[8 SET] then rotate [DIAL] to select

another set mode item.

DExpanded set mode

ON/OFF

qPush [8 SET] for 1 sec. to enter set

mode.

wRotate [DIAL] until “EXP1” or “EXP2”

appears.

ePush [8 SET] to select an expanded

set mode.

rRotate [DIAL] to turn the expanded

set mode ON or OFF.

tPush [8 SET] then rotate [DIAL] to

select a set mode item in the ex-

panded set mode, or push [VFO] to

exit set mode.

SKIPP

[VFO]

[8 SET]

[DIAL]

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 58 (1,1)

SET MODE

■Set mode items

Set mode is used for programming infrequently changed val-

ues or conditions of functions.

General set mode

R TONE Repeater tone (p. 57)

C TONE Tone squelch/pocket beep frequency (p. 57)

CODE DTCS squelch/beep code (p. 57)

OFFSET Offset frequency (p. 57)

RESUME Scan resume time (p. 58)

PAUSE Scan pause timer (p. 58)

PRIO Priority watch (p. 58)

BEEP LV Beep tone level (p. 58)

BEEP Beep tone (p. 59)

LIGHT Display backlighting (p. 59)

BUSY Busy LED (p. 59)

AP OFF Auto power-off (p. 59)

P SAVE Power save (p. 60)

MONI Monitor switch action (p. 60)

SPEED Dial speed acceleration (p. 60)

AUTORP Auto repeater (p. 61)

DTMF DTMF speed (p. 61)

MIC Optional HM-75A functions (p. 61)

WX ALT Weather alert function (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 LED (p. 62)

LIGHT P Backlighting position (p. 62)

COLOR Backlighting color (p. 63)

EDGE B Band edge beep (p. 63)

AP ON Auto power-on (p. 63)

LOCK Key lock effect (p. 63)

PTT LK PTT lock (p. 64)

CONT Contrast (p. 64)

OPN.MSG Opening message (p. 64)

Appears when expanded set mode 1 is ON.

EXP2 (Expanded set mode 2)

DTCS P DTCS phase mode (p. 65)

LK OUT Busy lock out (p. 65)

TOT Time-out timer (p. 65)

ACTIVE Active band (p. 65)

SPLIT Split operation (p. 66)

NARROW FM narrow deviation (p. 66)

MC SYN Morse code synthesizer (p. 66)

KY SPD Morse code keying speed (p. 66)

Appears when expanded set mode 2 is ON.

SET MODE

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 59 (1,1)

8SET MODE

•Repeater tone (R TONE)

Selects tone encoder frequency for accessing a repeater, etc.

from one of 50 available tone frequencies.

•67.0–254.1 Hz (50 tones):

88.5 Hz (default)

•Tone squelch frequency (C TONE)

Selects tone squelch or pocket beep frequency from one of

50 available tone frequencies.

•67.0–254.1 Hz (50 tones):

88.5 Hz (default)

[Repeater/Tone squelch tone table]

•DTCS squelch code (CODE)

Selects DTCS squelch code from one of 104 available codes.

•023–754 (104 codes):

023 (default)

[DTCS code table]

•Offset frequency (OFFSET)

Sets the offset frequency for duplex

(repeater) operation within

0–159.995 MHz range.

The offset frequency changes

according to the selected tuning

steps. (p. 18)

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

245

246

251

252

255

261

263

265

266

271

274

306

311

315

325

331

332

343

346

351

356

364

365

371

411

412

413

423

431

432

445

446

452

454

455

462

464

465

466

503

506

516

523

526

532

546

565

606

612

624

627

631

632

654

662

664

703

712

723

731

732

734

743

754

67.0

69.3

71.9

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

196.6

199.5

203.5

206.5

210.7

218.1

225.7

229.1

233.6

241.8

250.3

254.1

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 60 (1,1)

SET MODE

•Scan resume time (RESUME)

Selects the scan resume time from pausing on a frequency

after the received signal disappears.

•0 scan resumes when a received

signal disappears.

•1–5 scan pauses 1–5 sec. after a

received signal disappears.

(default: 2 sec.)

•Hold scan pauses on a received sig-

nal even if it disappears. Rotate

the tuning dial to resume manu-

ally.

•Scan pause timer (PAUSE)

Selects the scan pause time. When receiving signals, the

scan pauses according to the scan pause time.

•2–20 scan pauses for 2–20 sec. on

a received signal in 2 sec.

steps. (default: 10 sec.)

•Hold scan pauses on a received

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 The transceiver checks

the memory channel fre-

quency every 5 sec.

•BELL The transceiver checks

the memory channel fre-

quency every 5 sec. You

can be alerted with beeps

and a ﬂashing “S”.

•Beep tone level (BEEP LV)

Adjusts confirmation beep output level to the desired level

within 32 levels or to the related level with volume.

The confirmation beep (next item) must be turned on to

have a beep tone.

•VOLUME The beep tone volume

level is linked with the

receive volume level.

(default)

•- - - - - - The beep tone volume

ooo ooo level can be set in 32

steps.

SET MODE

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 61 (1,1)

8SET MODE

•Beep tone (BEEP)

Turns conﬁrmation beep ON or OFF.

•ON The conﬁrmation beep is turned

ON. (default)

•OFF The conﬁrmation beep is turned

OFF.

•Display backlighting (LIGHT)

The transceiver has display backlighting with a 5 sec. timer

for nighttime operation. The display backlighting can be

turned ON continuously or turned OFF, if desired.

“AUTO” setting turns the backlight-

ing ON while operating with an ex-

ternal DC power. (10–11.5 V DC)

•AUTO The display backlighting is

ON with a 5 sec. timer. (de-

fault)

•ON The display backlighting is turned ON.

•OFF The 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, if desired.

•ON The indicator lights green

while receiving a signal or

when the squelch is open.

(default)

•OFF The indicator does not func-

tion even if a signal is re-

ceived.

•Auto power-off (AP OFF)

The transceiver can be set to automatically turn OFF after a

speciﬁed period with beep in which no switch is pushed.

120 min., 90 min., 60 min., 30 min.

and OFF can be specified. The

specified period is retained even

when the transceiver is turned OFF

by the auto power-off function. To

cancel the function, select “OFF” in

this set mode.

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 62 (1,1)

SET MODE

•Power save (P SAVE)

The power save function reduces the current drain to con-

serve battery power. This item sets the power save duty

cycle—the ratio of receive circuit on to receive circuit off while

standing by. The duty cycle can be set to automatic (default),

1:1, 1:4, 1:8, 1:16 or OFF.

“AUTO” selects “1:4” duty ratio when receiving no signal for 5

sec., then “1:8” 60 sec. after that.

When “AUTO” is selected, the power save automatically

turns OFF while operating with an external DC power

(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. When set

to the sticky condition, each push of [SQL] toggles the moni-

tor function on and off.

•PUSH Set the monitor switch to

normal. (default)

•HOLD Set the monitor switch to

sticky switch.

•Dial speed acceleration (SPEED)

The dial speed acceleration automatically speeds up the tun-

ing dial speed when rotating the [DIAL] rapidly.

•ON The dial speed acceleration

is turned ON. (default)

•OFF The dial speed acceleration

is turned OFF.

SET MODE

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 63 (1,1)

•Auto repeater (AUTO RP)

The auto repeater function automatically turns ON or OFF the

duplex operation with specified shift direction and tone en-

coder, when the operating frequency falls within or outside of

the general repeater output frequency range.

U.S.A. version:

•ONLY

Activates duplex only. (default)

•TONE Activates duplex and tone.

•OFF Deactivates the function.

Korea version:

•ON Activates duplex and tone. (de-

fault)

•OFF Deactivates the function.

•DTMF speed (DTMF)

The rate at which DTMF memories send individual DTMF

characters 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 functions MIC

Microphone simple mode is used to change the function as-

signments for switches on the optional HM-75A REMOTE CON-

TROL MICROPHONE.

•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] Selects call channel C0.

[Y] Selects memory Ch 000.

[Z] Selects memory Ch 001.

VFO mode cannot be selected via the microphone when

SIMPLE mode is selected.

8SET MODE

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 64 (1,1)

SET MODE

•Wether Alert (WX ALT)

(USA version only)

Turns wether alert function ON or OFF.

•ON The WX alert beep sounds

when a alert signal is

received.

•OFF The WX alert beep does not

sound. (default)

•Scan stop beep (STOP B)

Turns scan stop beep ON or OFF.

•Turn the expanded set mode 1 ON in advance.

•ON The scan stop beep sounds

when a scan is stopped.

•OFF The scan stop beep does not

sound even when a scan is

stopped. (default)

•Scan stop LED (STOP L)

Turns scan stop LED ON or OFF.

•Turn the expanded set mode 1 ON in advance.

•ON The keypad backlighting

ﬂashes in green and orange

when a scan is stopped.

•OFF The keypad backlighting

does not ﬂash even when a

scan is stopped. (default)

•Backlighting position (LIGHT P)

Selects the lighting area from keypad only, function display

only and both keypad and function display.

•Turn the expanded set mode 1 ON in advance.

•ALL Lighting area is both keypad

and function display. (de-

fault)

•KEY Lighting area is keypad only.

•LCD Lighting area is function dis-

play only.

SET MODE

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 65 (1,1)

8SET MODE

•Backlighting color (COLOR)

Selects backlighting color between green, orange or red.

•Turn the expanded set mode 1 ON in advance.

•GREEN Green backlighting color.

(default)

•ORANGE Orange backlighting color.

•RED Red backlighting color.

•Band edge beep (EDGE B)

Turns band edge beep ON or OFF. The band edge beep

sounds when the operating frequency changes across the

band edge.

•Turn the expanded set mode 1 ON in advance.

•ON The band edge beep is turned

ON.

•OFF The 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

pack or case and the battery is

exhausted, auto power-on does

not function.

•Key lock effect (LOCK)

While the lock function is ON, [PWR], [PTT], [SQL], [Y]/[Z]

and [CALL/TV LOCK] can still be accessed. Accessible

switches can be set to 1 of 4 groups.

•Turn the expanded set mode 1 ON in advance.

•NORMAL [PWR], [PTT], [SQL]

and [Y]/[Z] are acces-

sible.

•NO SQL [PWR], [PTT] and

[SQL] are accessible.

•NO VOL [PWR], [PTT] and

[Y]/[Z] are accessible.

•ALL [PWR] and [PTT] are accessible.

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 66 (1,1)

SET MODE

•PTT lock (PTT LK)

Turns PTT lock ON or OFF.

•Turn the expanded set mode 1 ON in advance.

•ON The PTT lock is turned ON.

•OFF The PTT lock is turned OFF.

(default)

•LCD contrast (CONT)

The contrast 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 opening message ON or OFF.

•Turn the expanded set mode 1 ON in advance.

•ON Displays the opening mes-

sage at power ON. (default)

•OFF Does not display the open-

ing message at power ON.

SET MODE

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 67 (1,1)

8SET MODE

•DTCS phase mode (DTCS P)

Selects DTCS phase mode.

•Turn the expanded set mode 2 ON in advance.

•BOTH N Normal phases are used for

both Tx and Rx. (default)

•TN-RR Normal phase is used for

Tx; Reverse phase for Rx.

•TR-RN Reverse phase is used for

Tx; Normal phase for Rx.

•BOTH R Reverse phases are used

for both Tx and Rx.

•Busy lock out (LK OUT)

Turns the busy lockout function ON and OFF. This function

inhibits transmission while receiving a signal or when the

squelch is open.

•Turn the expanded set mode 2 ON in advance.

•ON The busy lockout is turned ON.

•OFF The busy lockout is turned

OFF. (default)

•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

timer can be cancelled.

•Turn the expanded set mode 2 ON in advance.

Approx. 10 sec. before the time-out timer is activated, the

transceiver emits a beep tone as a warning.

•OFF The time-out timer is turned

OFF. (default)

•1–10 The transmission is cut OFF

after the set period elapses.

•Active band (ACTIVE)

Allows continuous frequency selection of the operating fre-

quency across all bands.

•ALL The operating frequency

can be selected continu-

ously. (default)

•SINGLE The operating frequency

can be selected within

the current band. Push

[BAND] for band selec-

tion in this case.

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 68 (1,1)

SET MODE

•Split operation (SPLIT)

Turns the split operation ON or OFF. Split frequency opera-

tion allows you to transmit and receive on two different fre-

quencies. Split frequency operation uses 2 frequencies, one

in VFO A and the other in VFO B.

•Turn the expanded set mode 2 ON in advance.

•ON The split operation is turned

ON. ‘SPA’appears for VFO A;

‘SPB’appears for VFO B.

•OFF The split operation is turned

OFF. (default)

•FM narrow deviation (NARROW)

Selects the maximum FM deviation for normal or narrow FM

mode on transmit mode.

•ON Selects 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 in Morse code.

•Turn the expanded set mode 2 ON in advance.

•ON The Morse code synthesizer

is turned ON.

•OFF The Morse code synthesizer

is turned OFF. (default)

Turning power ON while pushing

[CALL/TV] also toggles the

Morse code synthesizer ON or OFF.

•Morse code keying speed (KY SPD)

The keying speed of the Morse code synthesizer can be ad-

justed within 10 to 25 WPM for your convenience.

•Turn the expanded set mode 2 ON in advance.

•10–25 WPM in 5 WPM steps

20 WPM (default)

SET MODE

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 69 (1,1)

9OTHER FUNCTIONS

■Programming a DTMF code

DTMF codes are used for autopatching, accessing repeaters,

controlling other equipment, etc. The transceiver has 10

DTMF memory channels (D0–D9) for storage of often-used

DTMF codes of up to 16 digits.

qPush [• DTMF.M] for 1 sec. to enter DTMF memory.

wRotate [DIAL] to select the desired DTMF memory chan-

nel.

•“T-CALL” appears when a 1750 Hz tone burst signal is selected.

(p. 29)

ePush [• DTMF.M] for 1 sec. to enter programming mode.

•Previously programmed DTMF code is cleared.

rPush 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] inputs “F” (#).

•Up to 16 digits can be programmed.

tRepeat runtil the desired code is input.

yPush [SQL] or [PTT] to program the DTMF code and exit

programming mode.

•Entering 16the digit automatically exits the programming mode.

Next display appears when

7th digit is input.

The display returns to 1st display

when 16th digit is input.

Programming mode

DTMF memory

channel

Blank channel

indication

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 70 (1,1)

OTHER FUNCTIONS

■Transmitting a DTMF code

DTransmitting from DTMF memory

The selected DTMF code is transmitted at each push of the

[SQL] switch while transmitting.

The rate at which DTMF memories send individual DTMF

characters can be set in set mode. (p. 56)

qSet the desired frequency.

wPush [• DTMF.M] for 1 sec. to enter DTMF memory.

eRotate [DIAL] to select the desired DTMF memory chan-

nel.

rPush [VFO] to exit DTMF memory.

tWhile pushing [PTT], push [SQL] to transmit the selected

DTMF code.

DTransmitting a DTMF code directly

DTMF code can be transmitted via keypad directly while

transmitting.

qSet the desired frequency.

wWhile pushing [PTT], push the desired keys to transmit the

DTMF code.

•[VFO] transmits “A,”[MR] transmits “B,”[CALL/TV] transmits “C,”

[BAND] transmits “D,” [•] transmits “E” (M) and [MODE] transmits

“F” (#).

FM SKIPP

[PTT]

DTMF code is not displayed.

[SQL]

[PTT]

[• DTMF.M]

[DIAL]

[VFO]

DTMF code is displayed

6 digits at a time.

OTHER FUNCTIONS

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 71 (1,1)

9OTHER FUNCTIONS

■Clearing a DTMF memory

An unwanted DTMF memory can be cleared (erased).

qPush [• DTMF.M] for 1 sec. to enter DTMF memory mode.

wRotate [DIAL] to select the desired DTMF memory chan-

nel to be cleared.

ePush [• DTMF.M] for 1 sec. to enter programming mode

and clear the selected DTMF memory channel.

•The DTMF memory channel is cleared.

rPush [SQL] or [PTT] to exit programming mode.

■Conﬁrming a DTMF memory

The DTMF memory can be conﬁrmed with DTMF tone.

qPush [• DTMF.M] for 1 sec. to enter DTMF memory mode.

wRotate [DIAL] to select the desired DTMF memory chan-

nel.

ePush [SQL] to conﬁrm the DTMF memory contents.

•The display returns to frequency indication after conﬁrmation.

FM SKIPP

[SQL]

[• DTMF.M]

[DIAL] DTMF code is displayed

6 digits at a time.

The display returns to

frequency indication.

[SQL]

[PTT]

[• DTMF.M]

[DIAL]

[VFO]

Select DTMF memory

to be cleared.

DTMF programming mode

The DTMF memory

becomes blank.

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 72 (1,1)

OTHER FUNCTIONS

•Subaudible (repeater) tone

Some repeaters require subaudible

tones to be accessed. Subaudible

tones are superimposed over your nor-

mal signal and must be set in advance.

•Tone and DTCS squelches

The tone squelch (CTCSS) or DTCS

squelch opens only when receiving a

signal containing a matching subaudi-

ble tone or DTCS code, respectively.

You can silently wait for calls from

group members using the same tone or

code. Separate tone frequencies can

be set for repeater and tone

squelch/pocket beep operation.

•Pocket and DTCS beep

These functions use subaudible tones

or DTCS code for calling and can be

used as a “common pager” to inform

you that someone has called while you

were away from the transceiver. Same

code is used for DTCS squelch and

beep.

Setting subaudible tones for

repeater or tone squelch

qPush [8 SET] for 1 sec. to enter set

mode.

wRotate [DIAL] until “R TONE” (re-

peater tone) or “C TONE” (CTCSS

tone) appears.

ePush [8 SET].

rRotate [DIAL] to select the desired

repeater or CTCSS tone.

•Each operating band and each memory

channel have independent settings.

tPush [VFO] to exit set mode.

DSetting DTCS code for

DTCS squelch or beep

qPush [8 SET] for 1 sec. to enter set

mode.

wRotate [DIAL] until “CODE” appears.

ePush [8 SET].

rRotate [DIAL] to select the desired

DTCS code.

•Each operating band and each memory

channel have independent settings.

tPush [VFO] to exit set mode.

DTCS phase mode can be selected

in expanded set mode 2. (p. 60)

■Tone frequency and DTCS code

OTHER FUNCTIONS

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 73 (1,1)

9OTHER FUNCTIONS

■Tone/DTCS squelch

qSet the desired operating frequency, CTCSS tone and

DTCS code.

wPush [2 TONE] for 1 sec. one or more times to activate the

tone or DTCS squelch. (T SQL or DTCS)

•Subaudible tone encoder “T,” tone squelch “T SQL,” pocket beep

“T SQLS,” DTCS squelch “DTCS,” DTCS beep “SDTCS”

and no tone operation are activated in order.

•Rotating [DIAL] while pushing [2 TONE] also selects the tone

functions.

eOperate the transceiver in the normal way.

rWhen the received signal includes a matching tone,

squelch opens and the signal can be heard.

•When the received signal’s tone does not match, tone squelch

does not open, however, the S-indicator shows signal strength.

•To open the squelch manually, push and hold [SQL].

■Pocket beep function

qSet the desired operating frequency.

wSet the desired CTCSS tone or DTCS code.

ePush [2 TONE] for 1 sec. one or more times to activate the

pocket beep or DTCS beep. (T SQLSor SDTCS)

•Rotating [DIAL] while pushing [2 TONE] also selects the tone

functions.

rWhen a signal with the correct tone or code is received,

the transceiver emits beep tones for 30 sec. and ﬂashes

“S”.

tPush [PTT] to answer or push [SQL] to stop the beeps and

ﬂashing.

➲CONVENIENT

Store subaudible tone frequencies, DTCS code, DTCS phase

mode and tone/DTCS squelch ON/OFF settings in memories

(call) for easy recall.

FM DTCS SKIPP

FM SQL SKIPTP

Pocket beep

by CTCSS dode

Pocket beep

by DTCS code

FM SKIPP

FM SKIPTP

FM SQL SKIPTP

FM DTCS SKIPP

No tone operation

Subaudible tone encoder

Tone squelch

Pocket beep

DTCS beep

DTCS squelch

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 74 (1,1)

OTHER FUNCTIONS

■Available tone frequencies

The transceiver has 50 tone frequencies for repeater and

tone squelch (CTCSS)/pocket beep operation. Separate tone

frequencies can be set for repeater and tone squelch/pocket

beep operation.

(unit: Hz)

The transceiver has 50 tone frequencies and consequently

their spacing is narrow compared with units having 38

tones. Therefore, some tone frequencies may receive in-

terference from adjacent tone frequencies.

■Available DTCS codes

The transceiver has 104 DTCS codes for DTCS squelch and

DTCS beep.

67.0

69.3

71.9

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

196.6

199.5

203.5

206.5

210.7

218.1

225.7

229.1

233.6

241.8

250.3

254.1

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

245

246

251

252

255

261

263

265

266

271

274

306

311

315

325

331

332

343

346

351

356

364

365

371

411

412

413

423

431

432

445

446

452

454

455

462

464

465

466

503

506

516

523

526

532

546

565

606

612

624

627

631

632

654

662

664

703

712

723

731

732

734

743

754

OTHER FUNCTIONS

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 75 (1,1)

9OTHER FUNCTIONS

■Tone scan

The transceiver can detect the subaudible tone frequency and

DTCS code in a received signal. By monitoring a signal that

is being transmitted on a repeater input frequency, you can

determine the tone frequency required to access the repeater.

qSet the desired frequency or memory channel to be

checked for a tone frequency or DTCS code.

wPush [2 TONE] for 1 sec. one or more times to activate the

repeater tone, tone squelch or DTCS squelch. (T, T SQL

or DTCS)

•Rotating [DIAL] while pushing [2 TONE] also selects the tone

functions.

ePush [7 T.SCAN] for 1 sec. to start the tone scan.

•To change the scanning direction, rotate [DIAL].

rWhen the 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 tone frequency is used for the repeater tone fre-

quency when the tone squelch or DTCS squelch is OFF.

•The decoded tone frequency is used for the tone squelch fre-

quency when the tone squelch is ON.

•The decoded DTCS code is used for the DTCS code when the

DTCS squelch is ON.

•“CT,” “rT” or “CD” appears according to the tone setting.

tPush [VFO] to stop the scan.

•If the scan is cancelled before the transceiver detects the tone

or code, the set mode contents are not changed.

[DIAL]

[VFO]

[2 TONE]

[7 T.SCAN]

Tone scan for tone squelch

Tone scan for repeater tone

Tone scan for DTCS squelch

Flashes while scanning.

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 76 (1,1)

OTHER FUNCTIONS

■Beep tones

You can select to have conﬁrmation beeps sound at the push

of a switch. The output level can be adjusted within 32 levels

or to the related level of the volume. (p. 58)

You can select silent operation by turning beep tones OFF.

(p. 59)

These can be selected in set mode.

■Dial speed acceleration

The dial speed acceleration automatically speeds up the tun-

ing dial speed when rotating the [DIAL] rapidly.

This function can be turned ON and OFF in 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 [PTT] can still be accessed while the

lock function is ON. (default)

DLock function effect

While the lock function is ON, [PWR], [VOL], [SQL] and [PTT]

can still be accessed. Accessible switches can be set to 1 of 4

groups in expanded set mode 1. (p. 63)

•“NORMAL”: [PWR], [VOL], [SQL] and [PTT] are accessible.

•“NO SQL”: [PWR], [SQL] and [PTT] are accessible.

•“NO VOL”: [PWR], [VOL] and [PTT] are accessible.

•“ALL”: [PWR] and [PTT] are accessible.

FM SKIPP

Lock indication

OTHER FUNCTIONS

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 77 (1,1)

9OTHER FUNCTIONS

■Morse code synthesizer

The transceiver announces the operating frequency or TV

channel number in Morse code. The keying speed can be ad-

justed within 10 to 25 WPM in 5 WPM steps for your conve-

nience. This can be selected in expanded set mode 2. (p. 66)

➥Push [BAND] for 1 sec. for

frequency announcement

when the Morse code syn-

thesizer is turned ON.

Turning power ON while

pushing [CALL/TV] also

toggles the Morse code

synthesizer 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 standing by, can be set to automatic

(default), 1:1, 1:4, 1:8, 1:16 or OFF in set mode. (p. 60)

•“AUTO” selects “1:4” duty ratio when receiving no signal for 5 sec.,

then “1:8” 60 sec. after that.

When automatic is selected, the power save automatically

turns OFF while operating with an external DC power sup-

ply. (11.0 V DC ±5%)

Circuit on

Circuit off

150 msec.

60 sec.

600 msec. 1200 msec.

No signal

5 sec.

[PWR]

[BAND]

[CALL/TV]

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 78 (1,1)

OTHER FUNCTIONS

■Time-out timer

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

timer can be cancelled (default).

Approx. 10 sec. before the time-out timer is activated, the

transceiver emits a beep tone as a warning.

This can be selected in expanded set mode 2. (p. 65)

■PTT lock

To prevent accidental transmission, etc., the transceiver has a

PTT lock function.

This can be selected in expanded set mode 1. (p. 64)

■Auto power OFF

The transceiver can be set to automatically turn OFF after a

speciﬁed period with beep in which no switch is pushed.

120 min., 90 min., 60 min., 30 min. and OFF can be speci-

fied. The specified period is retained even when the trans-

ceiver is turned OFF by the auto power-off function. To cancel

the function, select “OFF” in the auto power-off item in set

mode.

This can be selected in set mode. (p. 59)

■Auto power ON

The transceiver can be set to automatically turn ON after a

speciﬁed period. The timer can be selected within 30 min. to

24 hrs. in 30 min. steps.

This can be selected in expanded set mode 1. (p. 63)

When operating with battery pack or case and the battery

is exhausted, auto power-on does not function.

OTHER FUNCTIONS

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 79 (1,1)

9OTHER FUNCTIONS

■Weather channel operation

(USA version only)

There are 10 weather channels for moni-

toring weather channels from the NOAA

(National Oceanographic and Atmospheric

Administration) broadcasts.

DDWeather channel selection

qPush [CALL/TV LOCK] one or two times to select weather

channel mode.

•“WX” and the weather channel number appear.

wRotate [DIAL] to select the desired weather channel.

qPush [VFO] or [MR] to return to the previous frequency.

DDWeather alert function

NOAA broadcast stations transmit weather alert tones before

important weather announcements. When the weather alert

function is turned ON, the selected weather channel is moni-

tored each 5 sec. for the 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 channel is

checked periodically during standby or while scanning.

qSelect the desired weather channel.

wTurn the weather alert function ON in set mode.

➥Push [8 SET] for 1 sec. to enter set mode.

➥Rotate [DIAL] to select the [WX ALT] (weather alert

function), then push [8 SET].

➥Rotate the [DIAL] to set ON.

➥Push [VFO] to exit set mode.

eSets the desired stand-by condition.

•Selects VFO, memory or call channel.

•Scan or priority watch operation can also be selected.

rWhen the alert is detected, a beep sounds and the follow-

ing indication will be displayed.

tTurn the weather alert function OFF in set mode.

[DIAL]

[

CALL/TV

LOCK]

Shows above indications alternately.

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 80 (1,1)

OTHER FUNCTIONS

NOTE: While receiving a signal (on a frequency other than

the weather alert ON frequency), the receiving signal or

audio will be interrupted momentarily every 5 sec. (approx.)

in case the alert function is turned ON. This symptom is

caused by the WX alert function. To cancel these symp-

toms, set the weather alert item OFF in set mode.

OTHER FUNCTIONS

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 81 (1,1)

9OTHER FUNCTIONS

■Cloning function

The IC-T90A has transceiver-to-transceiver data cloning ca-

pability. This function is useful when you want to copy all of

the programmed contents from one IC-T90A to another. An

optional OPC-474 CLONING CABLE is required.

qConnect an optional OPC-474 between both [SP] jacks.

wWhile pushing [8 SET] and [MR], push [PWR] for 1 sec. to

enter cloning mode.

•“CLONE” appears.

ePush [PTT] on the “master” transceiver.

•“CL OUT” appears and the signal indicator shows that cloning is

taking place.

rPush [PWR] for 1 sec. to turn power OFF.

The optional 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 Microsoft Corporation in

the U.S.A. and other countries.

■[SP/MIC] jacks

To connect external equipment such as speaker, microphone,

TNC, etc. refer to the diagram below.

The center terminal of [MIC] outputs 3.2 V DC via 330 Ω

External

speaker

[SP] jack

GND

ø3.5 mm

plug

[MIC] jack

33 kΩ

MIC

GND

External

microphone

ø2.5 mm

plug

PTT

3.2 V (See below)

Impedance 8 Ω

Impedance 2 kΩ

MIC

3.2V

MIC GND

SP (AF OUT)

REMOTE

SP GND

OPC-474 to

[SP]

Signal indicator shows that

cloning is taking place.

Cloning period

Cloning mode

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 82 (1,1)

OTHER FUNCTIONS

■Resetting

The function display may occasionally

display erroneous information (e.g.

when ﬁrst applying power). This may be

caused externally by static electricity or

by other factors.

If this problem occurs, turn power OFF.

After waiting a few seconds, turn power

ON again. If the problem persists, per-

form either or both procedures below.

•All reset

Reset the CPU before operating the

transceiver for the first time, or when

the internal CPU malfunctions to clear

and return all programmed contents 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 function is available for the

transceiver.

DAll reset

qPush [POWER] for 2 sec. to turn

power OFF.

wWhile pushing [BAND], [VFO] and

[MR], turn power ON to reset the

CPU.

•“CLEAR” appears when resetting the

CPU.

CAUTION: Resetting the CPU re-

turns all programmed contents to

their default settings.

DPartial reset

qPush [POWER] for 2 sec. to turn

power OFF.

wWhile pushing [VFO], turn power ON

to partially reset the transceiver.

•Total resetting

FM SKIPP

[PWR]

[BAND]

[VFO]

[MR]

OTHER FUNCTIONS

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 83 (1,1)

10 HM-75A REMOTE CONTROL MICROPHONE

The optional HM-75A allows you to remotely select operating

frequencies, memory channels, etc.

Remote control functions can be selected from 3 settings.

This can be selected in set mode. (p. 56)

The HM-75A has a lock switch on the backside to prevent ac-

cidental frequency changes, etc.

Be sure to turn power OFF when plugging the HM-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] Selects call channel C0.

[Y] Selects memory Ch 000.

[Z] Selects memory Ch 001.

VFO mode cannot be selected via the microphone when

SIMPLE mode is selected.

SIMPLE mode can select only 3 channels and is useful for

group operations during touring, etc.

OFF ON

LOCK

PTT switch

Transmit LED

Earphone jack

Microphone

Speaker

OPTIONAL

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 84 (1,1)

TROUBLESHOOTING

PROBLEM POSSIBLE CAUSE SOLUTION REF.

No power comes ON. •The batteries are exhausted.

•The battery polarity is reversed.

•Replace the batteries or charge the battery pack.

•Check the battery polarity.

pgs. 1, 16

p. 1

No sound comes from the

speaker.

•Volume level is too low.

•Different tone is selected with tone/DTCS

squelch.

•Push [Y] to a suitable level.

•Check the tone using tone/DTCS scan.

p. 17

p. 70

Transmitting is

impossible.

•The batteries are exhausted.

•A frequency outside of the 50/144/400

MHz amateur bands is set.

•Replace the batteries or charge the battery pack.

•Reset the frequency inside the 50/144/400 MHz

amateur bands.

pgs. 13, 16

p. 19, 87

Tuning dial or [Z]/[Y]

function is strange.

•Tuning dial and [Z]/[Y] functions are

exchanged.

•Push [1 V↔D] for 1 sec. to cancel the function. p. 23

No beeps sound. •Beep tones are turned OFF or the beep

tone level is low.

•Turn beep tones ON or set the beep tone level to

appropriate level in set mode.

pgs. 58,

No contact possible with

another station.

•Different tone is selected with tone/DTCS

squelch.

•Check the tone using tone scan. p. 70

Receive audio is

distorted.

•The operating mode is not selected

correctly.

•Select a suitable operating mode in set mode. p. 21

Desired set mode item

cannot be selected.

•The desired set mode item is in expanded

set mode 1 or 2.

•Some set mode items can be selected

from VFO or memory mode only.

•Turn the expanded set mode 1 or 2 ON.

•Enter set mode from appropriate operating mode.

p. 55

pgs. 17, 18

22, 27

Frequency cannot be set. •The lock function is activated.

•Memory or call channel is selected.

•

Push [CALL/TV LOCK] for 1 sec. to cancel the function.

•Push [VFO] to select VFO mode.

p. 74

p. 20

If your transceiver seems to be malfunctioning, please check

the following points before sending it to a service center.

!!00

!!11

HM-75

REMOTE CONTROL MICROPHONE

TROUBLESHOOTING

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 85 (1,1)

The following tables show the channels versus video and

audio frequencies depending on each version.

■U.S.A. channels ■CCIR channels

12 TV FREQUENCY TABLE

CH Video Audio

2 55.25 59.75

3 61.25 65.75

4 67.25 71.75

5 77.25 81.75

6 83.25 87.75

7 175.25 179.75

8 181.25 185.75

9 187.25 191.75

10 193.25 197.75

11 199.25 203.75

12 205.25 209.75

13 211.25 215.75

14 471.25 475.75

15 477.25 481.75

16 483.25 487.75

17 489.25 493.75

18 495.25 499.75

19 501.25 505.75

20 507.25 511.75

21 513.25 517.75

22 519.25 523.75

23 525.25 529.75

24 531.25 535.75

25 537.25 541.75

CH Video Audio

26 543.25 547.75

27 549.25 553.75

28 555.25 559.75

29 561.25 565.75

30 567.25 571.75

31 573.25 577.75

32 579.25 583.75

33 585.25 589.75

34 591.25 595.75

35 597.25 601.75

36 603.25 607.75

37 609.25 613.75

38 615.25 619.75

39 621.25 625.75

40 627.25 631.75

41 633.25 637.75

42 639.25 643.75

43 645.25 649.75

44 651.25 655.75

45 657.25 661.75

46 663.25 667.75

47 669.25 673.75

48 675.25 679.75

49 681.25 685.75

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

60 747.25 751.75

61 753.25 757.75

62 759.25 763.75

63 765.25 769.75

64 771.25 775.75

65 777.25 781.75

66 783.25 787.75

67 789.25 793.75

68 795.25 799.75

69 801.25 805.75

CH Video Audio

1 41.25 46.75

2 48.25 53.75

3 55.25 60.75

4 62.25 67.75

5 175.25 180.75

6 182.25 187.75

7 189.25 194.75

8 196.25 201.75

9 203.25 208.75

10 210.25 215.75

11 217.25 222.75

12 224.25 229.75

21 471.25 476.75

22 479.25 484.75

23 487.25 492.75

24 495.25 500.75

25 503.25 508.75

26 511.25 516.75

27 519.25 524.75

28 527.25 532.75

29 535.25 540.75

30 543.25 548.75

CH Video Audio

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

38 607.25 612.75

39 615.25 620.75

40 623.25 628.75

41 631.25 636.75

42 639.25 644.75

43 647.25 652.75

44 655.25 660.75

45 663.25 668.75

46 671.25 676.75

47 679.25 684.75

48 687.25 692.75

49 695.25 700.75

50 703.25 708.75

51 711.25 716.75

52 719.25 724.75

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 86 (1,1)

■Australian channels

CH Video Audio

39 604.25 609.75

40 611.25 616.75

41 618.25 623.75

42 625.25 630.75

43 632.25 637.75

44 639.25 644.75

45 646.25 651.75

46 653.25 658.75

47 660.25 665.75

48 667.25 672.75

49 674.25 679.75

50 681.25 686.75

51 688.25 693.75

52 695.25 700.75

53 702.25 707.75

54 709.25 714.75

55 716.25 721.75

56 723.25 728.75

57 730.25 735.75

58 737.25 742.75

59 744.25 749.75

60 751.25 756.75

61 758.25 763.75

62 765.25 770.75

CH Video Audio

0 46.25 51.75

1 57.25 62.75

2 64.25 69.75

3 86.25 91.75

4 95.25 100.75

5 102.25 107.75

5A 138.25 143.75

6 175.25 180.75

7 182.25 187.75

8 189.25 194.75

9 196.25 201.75

10 209.25 214.75

11 216.25 221.75

28 527.25 532.75

29 534.25 539.75

30 541.25 546.75

31 548.25 553.75

32 555.25 560.75

33 562.25 567.75

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

6 189.25 194.75

7 196.25 201.75

8 203.25 208.75

9 210.25 215.75

10 217.25 222.75

11 224.25 229.75

■Taiwan channels

CH Video Audio

7 175.25 179.75

8 181.25 185.75

9 187.25 191.75

10 193.25 197.75

11 199.25 203.75

12 205.25 209.75

TV FREQUENCY TABLE

CH Video Audio

53 727.25 732.75

54 735.25 740.75

55 743.25 748.75

56 751.25 756.75

57 759.25 764.75

58 767.25 772.75

59 775.25 780.75

60 783.25 788.75

61 791.25 796.75

62 799.25 804.75

63 807.25 812.75

64 815.25 820.75

65 823.25 828.75

66 831.25 836.75

67 839.25 844.75

68 847.25 852.75

69 855.25 860.75

CH Video Audio

63 772.25 777.75

64 779.25 784.75

65 786.25 791.75

66 793.25 798.75

67 800.25 805.75

68 807.25 812.75

69 814.25 819.75

!!22

TV FREQUENCY TABLE

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 87 (1,1)

12 TV FREQUENCY TABLE

■China channels

CH Video Audio

1 49.75 56.25

2 57.75 64.25

3 65.75 72.25

4 77.25 83.75

5 85.25 91.75

6 168.25 174.75

7 176.25 182.75

8 184.25 190.75

9 192.25 198.75

10 200.25 206.75

11 208.25 214.75

12 216.25 222.75

13 471.25 477.75

14 479.25 485.75

15 487.25 493.75

16 495.25 501.75

17 503.25 509.75

18 511.25 517.75

19 519.25 525.75

20 527.25 533.75

21 535.25 541.75

22 543.25 549.75

23 551.25 557.75

24 559.25 565.75

25 607.25 613.75

26 615.25 621.75

27 623.25 629.75

CH Video Audio

28 631.25 637.75

29 639.25 645.75

30 647.25 653.75

31 655.25 661.75

32 663.25 669.75

33 671.25 677.75

34 679.25 685.75

35 687.25 693.75

36 695.25 701.75

37 703.25 709.75

38 711.25 717.75

39 719.25 725.75

40 727.25 733.75

41 735.25 741.75

42 743.25 749.75

43 751.25 757.75

44 759.25 765.75

45 767.25 773.75

46 775.25 781.75

47 783.25 789.75

48 791.25 797.75

49 799.25 805.75

50 807.25 813.75

51 815.25 821.75

52 823.25 829.75

53 831.25 837.75

54 839.25 845.75

CH Video Audio

55 847.25 853.75

56 855.25 861.75

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

68 951.25 957.75

■Indonesian channels

CH Video Audio

2 48.25 53.75

3 55.25 60.75

4 62.25 67.75

5 175.25 180.75

6 182.25 187.75

7 189.25 194.75

8 196.25 201.75

9 203.25 208.75

10 210.25 215.75

11 217.25 222.75

21 471.25 476.75

22 479.25 484.75

23 487.25 492.75

24 495.25 500.75

25 503.25 508.75

26 511.25 516.75

27 519.25 524.75

28 527.25 532.75

29 535.25 540.75

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

40 623.25 628.75

41 631.25 636.75

42 639.25 644.75

43 647.25 652.75

44 655.25 660.75

45 663.25 668.75

46 671.25 676.75

47 679.25 684.75

48 687.25 692.75

49 695.25 700.75

50 703.25 708.75

51 711.25 716.75

52 719.25 724.75

53 727.25 732.75

54 735.25 740.75

55 743.25 748.75

56 751.25 756.75

57 759.25 764.75

58 767.25 772.75

59 775.25 780.75

60 783.25 788.75

61 791.25 796.75

62 799.25 804.75

63 807.25 812.75

64 815.25 820.75

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 88 (1,1)

TV FREQUENCY TABLE

■FOT channels

CH Video Audio

4 175.25 181.75

5 183.25 189.75

6 191.25 197.75

7 199.25 205.75

8 207.25 213.75

9 215.25 221.75

CH Video Audio

65 823.25 828.75

66 831.25 836.75

67 839.25 844.75

68 847.25 852.75

69 855.25 860.75

■Italian channels

CH Video Audio

A 53.75 59.25

B 62.25 67.75

C 82.25 87.75

D 175.25 180.75

E 183.25 188.75

F 192.25 197.75

G 201.25 206.75

H 210.25 215.75

H1 217.25 222.75

H2 224.25 229.75

21 471.25 476.75

22 479.25 484.75

23 487.25 492.75

24 495.25 500.75

25 503.25 508.75

26 511.25 516.75

27 519.25 524.75

28 527.25 532.75

29 535.25 540.75

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

40 623.25 628.75

41 631.25 636.75

42 639.25 644.75

43 647.25 652.75

44 655.25 660.75

45 663.25 668.75

46 671.25 676.75

47 679.25 684.75

48 687.25 692.75

49 695.25 700.75

50 703.25 708.75

51 711.25 716.75

52 719.25 724.75

53 727.25 732.75

54 735.25 740.75

55 743.25 748.75

56 751.25 756.75

57 759.25 764.75

58 767.25 772.75

59 775.25 780.75

60 783.25 788.75

61 791.25 796.75

62 799.25 804.75

63 807.25 812.75

64 815.25 820.75

CH Video Audio

65 823.25 828.75

66 831.25 836.75

67 839.25 844.75

68 847.25 852.75

69 855.25 860.75

!!22

TV FREQUENCY TABLE

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 89 (1,1)

DGeneral

•Frequency coverage : (unit: MHz)

*1Guaranteed 440–450 MHz only

*2Guaranteed 430–440 MHz only

•Mode : FM, AM (Rx only),

WFM (Rx only)

•No. of memory channels : 555 (500 regular, 50 scan edges,

5 call)

•Usable temp. range : +14°F to +140°F;

–10°C to +60°C

•Tuning steps : 5, 6.25, 8.33, 9, 10, 12.5, 15, 20,

25, 30, 50, 100 and 200 kHz

•Frequency stability : ±6 ppm (+14°F to +140°F)

•Power supply : 5.5 to 11.5 V DC or speciﬁed

battery pack

•Current drain (at 8.0 V DC):

Tx High 50 MHz 2.0 A (typical)

144, 430 MHz 2.0 A (typical)

Tx Low 50, 144 MHz 0.8 A (typical)

430 MHz 1.2 A (typical)

Rx rated audio 220 mA (typical)

standby 100 mA (typical)

power saved 65 mA (typical)

•Antenna connector : SMA (50 Ω)

•Dimensions : 2 9⁄32(W)×37⁄16(H)×15⁄32(D) in;

(projections not included) 58(W)×87(H)×29(D) mm

•Weight (approx.) : 8 15⁄32 oz; 240 g

(with antenna and BP-217)

13 SPECIFICATIONS

U.S.A

Canada

Asia

Australia

Korea

Taiwan

General

Transmit

50–53.995,

144–148, 430–450*1

50–53.995,

144–148, 430–440

50–53.995,

144–148, 420–450*2

50–53.995,

144–146, 430–440

50–50.2, 144–146,

430–432

50–53.995,

144–148, 430–440

Receive

0.495–824.000,

849–869.000,

894–999.990

0.495–999.990

0.495–53.995,

108–135.995,

144–148, 420–450

0.495–29.995,

50–53.995,

88–107.995,

144–146, 430–440

50–50.2,

76–107.995,

144–146, 430–440

0.495–999.990

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 90 (1,1)

SPECIFICATIONS

DReceiver

•Receive system : Double-conversion

superheterodyne

•Intermediate frequencies : 1st 69.45 MHz (FM/AM)

13.35 MHz (WFM)

2nd 450 kHz

•Sensitivity (except spurious points; typical values):

FM 1.625–4.995 MHz 0.4 µV

(at 12 dB SINAD) 5.000–49.995 MHz 0.18 µV

50.000–54.000 MHz 0.16 µV

54.005–143.995 MHz 0.18 µV

144.000–148.000 MHz 0.16 µV

148.005–221.995 MHz 0.4 µV

222.000–225.000 MHz 0.32 µV

225.005–246.995 MHz 0.4 µV

247.000–429.995 MHz 0.32 µV

430.000–450.000 MHz 0.16 µV

450.005–832.990 MHz 0.32 µV

833.000–999.990 MHz 1 µV

WFM 40.000–108.0 MHz 1 µV

(at 12 dB SINAD) 175–221.995 MHz 1.8 µV

470–770 MHz 3.2 µV

AM 0.495–4.995 MHz 1.3 µV

(at 10 dB S/N) 5.000–29.995 MHz 0.56 µV

118.000–136.000 MHz 0.5 µV

222.000–229.995 MHz 0.79 µV

320.000–329.995 MHz 1 µV

•Selectivity (except WFM) : Less than 15 kHz/–9 dB

More than 30 kHz/–60 dB

•Spurious and image rejection ratio:

50, 144 MHz Less than –60dB

430 (440) MHz Less than –50dB

(except half IF, 2nd image, 50 MHz band IF and WFM)

•Audio output power : 0.2 W typical at 10%

(at 8.0 V DC) distortion with an 8Ωload

•Ext. speaker connector : 2-conductor 3.5(d) mm;

1⁄8˝/8Ω

DTransmitter

•Modulation system : Variable reactance frequency

modulation

•Output power : High 5 W

(at 8.0 V DC) Low 0.5 W

•Spurious emissions : Less than –60 dB

•Max. frequency deviation: ±5.0 kHz

•Ext. MIC connector : 3-conductor 2.5(d) mm;

1⁄10˝/2 kΩ

All stated specifications are subject to change without

notice or obligation.

!!33

SPECIFICATIONS

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 91 (1,1)

AD-92SMA ANTENNA CONNECTOR ADAPTER

Allows you to connect an antenna with a BNC connector.

(SMA to BNC adapter)

BC-110AR/D/DR WALL CHARGER

Regularly charges BP-217 Li-ion battery pack in 15 hrs.

BC-139 DESKTOP CHARGER

Rapidly charges BP-217 Li-ion battery pack in 2 hrs. and 30

min.

BP-216 BATTERY CASE

Battery case for R6 (AA) ×2 alkaline batteries.

BP-217 Li-Ion BATTERY PACK

7.4 V/1300 mAh Lithium Ion battery pack. Approx. 6 hrs. and

20 min. operating time at 50M band with high power, Tx : Rx :

Standby = 1:1:8.

HM-46 SPEAKER-MICRO-

PHONE

Slim dimensions. Equipped

with an earphone jack and a

transmit indicator.

HM-75A REMOTE CONTROL

MICROPHONE

Allows you to remotely select

operating channels, etc.

HM-131 SPEAKER-MICRO-

PHONE

For operation while conve-

niently hanging the transceiver

from your belt, etc.

HM-128 EARPHONE-MICROPHONE

Ideal for hands-free operation by clipping the microphone with

PTT switch to your lapel or breast pocket.

BC-123

(supplied

with BC-139)

Charger adapter

Desktop charger

14 OPTIONS

HM-46

HM-75A

HM-131

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 92 (1,1)

HS-94 EARHOOK

HEADSET + VS-1

VOX/PTT UNIT

Flexible boom micro-

phone and rotating ear-

piece with a spring

earhook.

SP-13 EARPHONE

Provides clear receive

audio in noisy environ-

ments.

LC-152A CARRYING CASE

Helps protect the transceiver from scratches, etc.

CP-19

CIGARETTE LIGHTER CABLE WITH NOISE FILTER

Used for operation and charging a battery pack connected to

the 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 Microsoft®

Windows®95/98 and ME. 1 RS-232C (COM) port is required.

OPC-474 CLONING CABLE

Used for handheld-to-handheld cloning.

CP-19

OPTIONS

Microsoft®and Windows®are registered trademarks of Microsoft Cor-

poration in the U.S.A. and other countries.

VOX

PTT

HS-94

VS-1

!!44

OPTIONS

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 93 (1,1)

Blank page

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 94 (1,1)

■ TV channel mode selection

Push [CALL/TV] several times.

■ TV channel selection

Rotate [DIAL].

■ TV channel skip setting

q Select TV channel mode.

w Rotate [DIAL] to select desired

channel.

e Push and hold [5 SKIP] for 1 sec.

■ Cancelling skip setting

q Select TV channel mode.

w While pushing [BAND], rotate

[DIAL] to select desired skip

channel.

e Push and hold [SKIP] for 1 sec.

■ Exchange [DIAL] and [∫]/[√]

assignment

Push and hold [1 V↔D] for 1 sec.

■ Key lock function

Push and hold [CALL/TV] for 1 sec. to

turn the lock function ON and OFF.

■ SET mode operation

q Push and hold [8 SET] for 1 sec.

w Rotate [DIAL] to select SET mode

item.

e Push [8 SET] momentarily, then

rotate [DIAL] 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],

[VFO] and [MR], turn power ON.

• Partial reset

q Turn power OFF.

w While pushing and holding [VFO],

turn power ON.

FM SKIPP

V D

TONE

BAND

H/L

MODE

SCAN

VFO

MHz

iC-t90a

DUP

SKIP

M.N

RIT

S.MW

T.SCAN

SET

DTMF.M

CALL/TV

LOCK

MULTIBAND TRANSCEIVER

POCKET GUIDE

Important operating instructions are summed up in this and the following page

for your simple reference.

By cutting along the line and folding on the dotted line, it will become a card

sized operating guide which can easily be carried in a card case or wallet,

etc.

q Cut w Fold e Complete

POCKET GUIDE

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 95 (1,1)

QUICK REFERENCE

■ VFO/MEMORY MODE selection

VFO mode : Push [VFO].

MEMORY mode : Push [MR].

■ Changing frequency band

Push [BAND].

■ Frequency setting

q Select VFO mode.

w Rotate [DIAL], or enter the desired

frequency from the keypad.

[e.g. 1] 445.600 MHz

[4], [4], [5], [•], [6], [0], [0]

[e.g. 2] 0.684 MHz

[0], [•], [6], [8], [4]

■ Changing receiving mode

Push [MODE].

■ Adjusting audio output level

Push [∫]/[√] (continuously changes

while holding).

■ Adjusting squelch level

While pushing [SQL] rotate [DIAL].

■ MEMORY channel selection

q Select MEMORY mode.

w Rotate [DIAL], or use keypad.

■ MEMORY channel programming

[e.g.] Program 445.600 MHz into MR

CH 2

q Select VFO mode.

w Rotate [DIAL], or use keypad to

set 445.600 MHz.

e Push and hold [MR S.MW] for

1 sec. to indicate memory channels.

r Rotate [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 [CALL/TV] several times to

select “CLR”.

e Push and hold [MR S.MW] for

1 sec. to clear the information.

■ Scanning in VFO mode

q Select VFO mode.

w While pushing and holding [MODE

SCAN], rotate [DIAL] to select

scan edge from full (ALL), band

(BAND) and program (PROG

0–24) scans.

e Release [MODE SCAN] to start the

scan.

r Push [VFO] to stop the scan.

■ Scanning in MEMORY mode

q Select MEMORY mode.

w For the memory bank scan, push

[MR] to select memory bank mode

and push [BAND] to select the de-

sired memory bank.

e While pushing and holding [MODE

SCAN], rotate [DIAL] to select

scan mode from memory (ALL)

and bank (BANK) scans.

r Release [MODE SCAN] to start the

scan.

t Push [VFO] to stop the scan.

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 96 (1,1)

IC-T90A_IM.qxd 02.5.28 01:13 PM Page 97 (1,1)

Count on us!

1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003 Japan

A-6134H-1EX

Printed in Japan

IC-T90A_IM.qxd 02.5.28 01:13 PM Page z (1,1)

ICOM orporated IC-T90A Amateur Transceiver with Scanning Receiver User Manual IC T90A IM

ICOM Incorporated Amateur Transceiver with Scanning Receiver IC T90A IM

Users Manual

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