3BASIC OPERATION13 Repeater operationD GeneralWhen using a repeater, the transmit frequency is shifted fromthe receive frequency by the offset frequency. It is convenientto program repeater information into memory channels(p. 15).➀ Set the operating band and receive frequency (repeateroutput frequency).➁ Push [(TONE) DUP] for 1 sec. once to select – DUP or twiceto select DUP.• “– DUP” or “DUP” appears to indicate the transmit frequency forminus shift or plus shift, respectively.• When the auto repeater function is in use (U.S.A. version only)this selection and step ➂ are not necessary (p. 24).➂ Push [TONE] to activate the subaudible tone encoder,according to repeater requirements.• “T” appears.• Refer to the table of tone frequencies on the following page.➃ Push and hold [PTT] to transmit.• The displayed frequency automatically changes to the transmitfrequency (repeater input frequency).• If “OFF” appears, check the offset frequency (p. 14).➄ Release [PTT] to receive.➅ Push and hold [MONI] to check whether the other station’stransmit signal can be directly received or not.D Tone informationSome repeaters require a tone to be accessed. In this case,precede step ➃ at left with the required tone.DTMF TONES (U.S.A. and Asia versions only)While pushing [PTT], push the desired digit key(s) to transmitDTMF tones• The transceiver has 9 DTMF memory channels. See p. 17 fordetails.1750 Hz TONE (Europe and Italy versions only)While pushing [PTT], push and hold [TONE] for 1 to 2 sec. totransmit a 1750 Hz tone signal.✔ CONVENIENTTone scan function: When you don’t know the subaudibletone used for a repeater, the tone scan is convenient fordetecting the tone frequency.Push and hold [T SCAN?] to activate. See p. 22 for moreinformation.

explicit definitions

PANEL DESCRIPTION

panel description

I Function display

BATTERY PACKS AND ACCESSORIES

I Charging connections

I Battery case

I Accessory attachment

BASIC OPERATION

I Setting tuning steps

I Selecting a memory channel

I Repeater operation

programming during selection

programming after selection

I DTMF memory operation

I Scan operation

I Subaudible tone operation

pocket beep operation

OTHER FUNCTIONS

function display backlighting

lcd contrast

I Channel indication mode

TROUBLESHOOTING

OPTIONS

SPECIFICATIONS

MODE ARRANGEMENT

Icom IC-T7H Instruction Manual

Switches, controls, keys and connectors

PANEL DESCRIPTION ............................................ 1

Battery pack charging

Charging connections

Battery case

BATTERY PACKS AND ACCESSORIES ................ 6

Power ON

Setting tuning steps

Selecting a memory channel

Repeater operation

3 basic operation

Memory/call channels

DTMF memory operation

Scan operation

advanced functions

Subaudible tone operation

Initial set mode

dtmf speed

Channel indication mode

mode arrangement

IC-T7H

LOGIC UNIT

RECEIVER CIRCUITS

TRANSMITTER CIRCUITS

PLL CIRCUITS

POWER SUPPLY CIRCUITS

PORT ALLOCATIONS

PLL AND TRANSMITTER ADJUSTMENT

RECEIVER ADJUSTMENT

logic unit