Dual Tone Multi-Frequency(Dtmf); Manual Dialing; Automatic Dialer - Kenwood TH-D74A User Manual

11 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 do 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.
Selecting a Transmit Speed
Some repeaters may not respond correctly if a DTMF code is
transmitted at fast speed. If this happens, change the DTMF
code transmission speed.
1 Access Menu No. 160.
2 Select [50], [100], or [150] msec.
Selecting a Pause Duration
You can change the pause duration stored in DTMF Memory
channels.
1 Access Menu No. 161.
2 Select [100], [250], [500], [750], [1000], [1500], or [2000]
msec.
DTMF Hold
Activate this function to remain in transmit mode, after
beginning to press keys when making a call.
1 Access Menu No. 162.
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.
Storing a DTMF Code in Memory
1 Access Menu No. 163.
2 Select a channel number, then press [ENT].
The name entry display appears.
3 Enter a name for the channel, then press [ENT] to set it.
4 Press [ENT].
The code entry display appears.
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