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Advanced Operation
DTMF Operation
DTMF tones (Dual Tone Multi Frequencies) are the tones you hear when dialing from a
telephone keypad. The FTM-3207DR/DE transceiver can transmit the DTMF codes by
using the keys on the microphone or recalling registered number strings from memories.
The maximum of 16-digit DTMF codes can be registered in up to 10 memory channels.
It is convenient to register telephone patch numbers, and network linking sequences to
the DTMF memory channels.
Note: The two combined frequencies of the DTMF tone transmitted for each key are
indicated in the following table:
Transmitting a DTMF code manually
You can generate DTMF tones during transmission manually.
1. Press and hold in the [ MHz ( SETUP )] key for
one second to enter the Set mode.
2. Rotate the DIAL knob to select "DT AUTO
15".
3. Press the [ MHz ( SETUP )] key momentari-
ly, and then rotate the DIAL knob to select
"MANUAL".
4. Press and hold in the [ MHz ( SETUP )] key for one second to save the new setting and
exit to normal operation.
5. While pressing and holding PTT, press the desired DTMF characters ( [ 0 ] to [ 9 ] , [
or [ A ] to [ D ] ), sequentially on the microphone keypad.
6 Release PTT.
While transmitting the DTMF code, transmission status is sustained even when PTT is
released.
10
1209 Hz
697 Hz
1
770 Hz
4
852 Hz
7
941 Hz
]
1336 Hz
1477 Hz
2
3
5
6
8
9
0
#
VOL
FTM-3207DR/DE Advance Manual
1633 Hz
A
B
C
D
DIAL
SQL
REV
D/A
M H z
V / M
TXPO
D W
M W
SETUP
] , [ # ] ,
]
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