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, M(E) and #(F) are available.• When “d” is displayed in place of the 100 MHz digit,cancel the DTMF memory encoder in advance.(p. 49)• Push [DTMF-S] again to return the keypad to nor-mal function control.✔ For your convenient!The transceiver has 16 DTMF memory channels for au-topatch operation. See p. 47 for details.D 1750 Hz toneThe microphone has 1750 Hz tone capability, used for ringtone when calling, etc.z Push [FUNC].• The function indicator lights orange.x Push [MM(TONE-1)] to transmit a 1750 Hz tonecall signal for 0.5 sec.; push and hold[0(TONE-2)] to transmit a 1750 Hz tone callsignal for an arbitrary period.• The function indicator goes out automatically.Push ,then or .TONE-1TONE-2then push desired keys.Push ,DTMF-S234 REPEATER OPERATION