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34
DUAL TONE MULTI-FREQUENCY (DTMF) FUNCTIONS
You can send DTMF tones by using the DTMF keys on
the keypad. The keypad includes the 12 keys found on
a push-button telephone plus 4 additional keys
(A, B, C, D). These additional keys are required for
various control operations by some repeater systems.
MAKING DTMF CALLS
1
Press and hold the
PTT
switch.
2
Press the keys in sequence on the keypad to send
DTMF tones.
•
The corresponding DTMF tones are transmitted.
■
DTMF Tone TX Hold
This function makes the transceiver remain in the
transmit mode for 2 seconds after you release each
key. So you can release the
PTT
switch after
beginning to press keys.
1
Press
[F]
,
[BAND]
to enter Menu mode.
2
Select Menu No. 13 (2S).
3
Press
[BAND]
to switch the function ON or OFF
(default).
4
Press any key other than
[BAND]
,
[LAMP]
, and
[MONI]
to exit Menu mode.
■
Autopatch (U.S.A. and Canada)
Some repeaters in the U.S.A. and Canada offer a
service called Autopatch. Autopatch allows you to
access the public telephone network by sending
DTMF tones. Some repeaters require a special key
sequence to activate Autopatch. Check with the
repeater control operator.
1336
Freq. (Hz)
1477
1209
1
4
7
1633
697
770
852
941
A (CALL)
B (VFO)
C (MR)
D (F)
2
5
8
0
3
6
9
(MHz)
(REV)
Содержание TH-G71A
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