Transmitting A Dtmf Code Sequence - Icom ic-U80 Instruction Manual

■ Transmitting a DTMF code sequence

The transceiver has three methods of transmitting a DTMF
code sequence. Select a desired option in the Set mode.
q Push [FUNC](M), and then [SET](8) to enter the Set mode.
w Push [p] or [q] to select the DTMF TX key item (dmt).
e Rotate [VOL] to select a desired option.
• dmt.k : Transmits the appropriate DTMF code assigned to a
pushed key.
• dmt.m : Transmits the programmed DTMF code sequence in the
DTMF memory channel assigned to a pushed key.
• dmt.t : No DTMF code can be transmitted. However, while
holding down [PTT], pushing either the [p] or [q]
transmits a 1750 Hz tone burst signal.
r Push [# ENT] to exit the Set mode.
D Manual DTMF code transmission
First, set the DTMF TX key to "dmt.k" in the Set mode.
➥ While holding down [PTT], push the desired keys to trans-
mit a DTMF code sequence manually.
• Push [0]–[9] for "0"–"9," [MONI] for "A," [p] for "B," [q] for "C,"
[VFO/MR/CALL] for "D," [M] for "M," and [# ENT] for "#."
D Using a DTMF memory channel
First, set the DTMF TX key to "dmt.m" in the Set mode.
➥ While holding down [PTT], push one of the keys to trans-
mit the programmed DTMF code sequence in the DTMF
memory.
• Pushing [0] to [9], [MONI](A), [p](B), [q](C), [VFO/MR/CALL]
M
(D), [ ](E), or [# ENT](F) transmits a DTMF code channel
(d0–d9, dA, dB, dC, dD, dE or dF) respectively.
D 1750 Hz tone
To access some European repeaters, the transceiver must
transmit a 1750 Hz tone burst signal.
• This tone can be used as a 'Call signal' in countries out of Europe.
First, set the DTMF TX key to "dmt.t" in the Set mode.
➥ While holding down [PTT], hold down either the [p] or
[q] for 1 or 2 seconds to transmit a 1750 Hz tone burst
signal.
• The tone is transmitted until you release the key.
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DTMF MEMORY
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