10
Advanced Operation
FTM-3100R Advance Manual
DTMF Operation
DTMF tones (Dual Tone Multi Frequencies) are the tones you hear when dialing from a
telephone keypad. The FTM-3100R 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:
1209 Hz
1336 Hz
1477 Hz
1633 Hz
697 Hz
1
2
3
A
770 Hz
4
5
6
B
852 Hz
7
8
9
C
941 Hz
]
0
#
D
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
10
”.
VOL
DIAL
D W
M W
SETUP
REV
SQL
TXPO
V / M
M H z
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.
