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Dual tone multi-frequency (dtmf) – Kenwood TH-D72E User Manual

Page 21

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DUAL TONE MULTI-FREQUENCY (DTMF)

The keys on the keypad function as DTMF keys; the 12 keys found on a push-button telephone plus 4 additional keys (A,
B, C, D). This transceiver provides 10 dedicated memory channels. You can store a DTMF code with up to 16 digits.

Some repeaters in the U.S.A. and Canada offer a service called Autopatch. You can access the public telephone network
via such a repeater by sending DTMF tones. For further information, consult your local repeater reference.

MANUAL DIALING

Manual Dialing requires only two steps to send DTMF
tones.

1 Press and hold [PTT].

2 Press the keys in sequence on the keypad to send

DTMF tones.

The corresponding DTMF tones are transmitted.

If the DTMF Hold function is activated, you not need hold
down [PTT] while pressing keys. After transmitting the
first tone (by pressing [PTT] and the first key), pressing
additional keys will keep the transceiver in transmit mode
for 2 seconds.

Frequency (Hz)

1209

1336

1447

1633

697

[1]

[2]

[3]

[A]

770

[4]

[5]

[6]

[B]

852

[7]

[8]

[9]

[C]

941

[ ]

[0]

[#]

[D]

Q DTMF Hold

Activate this function to remain in transmit mode, after
beginning to press keys when making a call.

1 Enter Menu mode and access Menu 173.

2 Set DTMF Hold to “On” to continue transmitting

when pressing keys.

Set this menu to “Off” to stop the 2 second continuous
transmission.

AUTOMATIC DIALER

There are 10 dedicated DTMF Memory channels available
to store DTMF codes. You can store up to 16 digits in
each channel.

Q Storing a DTMF Code in Memory

1 Enter Menu mode and access Menu 170.

2 Press [

(OK)]

3 Press [

]/[

] or rotate the Tuning control to select

a channel number.

4 Press [

OK] or [MENU] to set the selected

channel number.

The name entry display appears.

5 Enter a name for the channel, the press [

OK] or

[MENU] to set it.

The code entry display appears.

6 Enter a DTMF code for the channel, then press [

OK] or [MENU] to set it.

When a space is entered, it becomes a “Pause” code.

DTMF – 1

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