 Receive and transmit➀ Push [POWER] for 1 sec. to turn power ON.➁ Adjust the [VOL] control to the desired level.• While pushing [MONI], rotate [VOL].➂ Set the squelch level.• While pushing [MONI], rotate [DIAL].• 4 selections are available, “OP”(open), “AT” (automatic), 1 and 2.➃ Set an operating band and frequency.When a signal is received:➥ Squelch opens and audio is emitted from the speaker.➥ The S/RF indicator shows the relative signal strength.➄ Push [H/L] to toggle output power between high and low.• “LOW” appears when low output power is selected.➅ Push and hold [PTT] to transmit; then speak into the mic.• Do not hold the microphone too close to your mouth or speaktoo loudly. This may distort the signal.• The TX/RX indicator lights red.• The S/RF indicator shows the output power selection.➆ Release [PTT] to return to receive.✔ CONVENIENTMonitor function: Push and hold [MONI] to listen to weaksignals that do not open the squelch; or push [MONI] twice tomonitor a signal without having to continuously hold [MONI].Squelch control: The transceiver employs a noise pulsecount system and therefore, squelch is adjusted automatical-ly, when “AT” is selected.123 BASIC OPERATION Selecting a memory channel➀ Push [MR] to select memorymode.➁ Push 2 digit keys to selectthe desired memory chan-nel (or rotate [DIAL]).• The first nine memory chan-nels are preceded by a “0.”• To select scan edges 1A to 4B,use [@] for “A” and [?] for “B.”• Only programmed memorychannels can be selected. Lock functionThe lock function prevents accidental frequency changesand accidental function activation.➥ Slide [LOCK] up or down to set thelock function ON or OFF, respec-tively.• “L” appears while the lock function is activated.• [PTT], [POWER], [VOL], [MONI], and [H/L] can be used regard-less of this setting.MRMRMRMR60

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