Yaesu FTM-7250DR, Руководство для продвинутых пользователей

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13
Advanced Operation
DTMF Operation
DTMF tones (Dual Tone Multi Frequencies) are the tones you hear when dialing from a
telephone keypad. The FTM-7250DR 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 the [
MHz
(
SETUP
)] key to enter the
Set mode.
2. Rotate the DIAL knob to select “ DT AUTO 16 ”.
3. Press the [ MHz
(
SETUP
)] key momentarily, and
then rotate the DIAL knob to select “MANUAL”.
4. Press and hold the [ MHz
(
SETUP
)] key to save the new setting and exit to normal op-
eration.
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.