Icom IC-E2820 - UT-123 Optional Unit; UT-123 Voltage Diagram and Parts

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REPEATER OPERATION
D DTMF tones
➥ Push [DTMF-S], then push the keys of the de-
sired DTMF digits.
• The function indicator lights green.
• 0–9, A–D, ✱(E) and #(F) are available.
• When “1” is displayed, cancel the DTMF memory
encoder in advance. (p. 82)
• Push [DTMF-S] again to return the keypad to nor-
mal function control.
✔ For your convenience!
The transceiver has 16 DTMF memory channels for au-
topatch operation. See p. 81 for details.
D 1750 Hz tone
The microphone has 1750 Hz tone capability, used for ring
tone when calling, etc.
z Push [FUNC].
• The function indicator lights orange.
x Push [✱(TONE-1)] to transmit a 1750 Hz tone
call signal for 0.5 sec.; push and hold
[0(TONE-2)] to transmit a 1750 Hz tone call
signal for an arbitrary period.
• The function indicator goes out automatically.
Push ,
then or .
TONE-1
TONE-2
then push desired keys.
Push ,
DTMF-S