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DUAL TONE MULTI-FREQUENCY (DTMF)
The keys on the microphone 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 the microphone [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 need not 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]
n 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 300 (DT.HOLD) {page 20}.
2 Set DTMF Hold to ON to continue transmitting when pressing keys.
• Set this menu to OFF to stop the 2 second continuous transmission.