Dual Tone Multi-Frequency (Dtmf) Functions; Manual Dialing; Dtmf Monitor - Kenwood TM-281A Mode D'emploi

This transceiver provides you with 10 dedicated DTMF
Memory Channels. You can store a DTMF number (16
digits max.) in each of these channels to recall later for
speed dialing.
Many 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

The keys on the Mic keypad function as DTMF keys;
the 12 keys found on a push-button telephone plus 4
additional keys (A, B, C, D).
To perform Manual Dialing, follow the steps below.
1 Press and hold Mic [PTT] to transmit.
2 While transmitting, press the keys in sequence on the
keypad, to send the DTMF tones.
10
• The corresponding DTMF tones are transmitted.
Freq. (Hz)
1209
1
697
4
770
7
852
941
50

DUAL TONE MULTI-FREQUENCY (DTMF) FUNCTIONS

1336 1477 1633
2 3 A
5 6 B
8 9 C
0 # D
• When DTMF TX Hold is activated {page 51}, you do
not need to continuously press Mic [PTT] to remain
in transmission mode. However, transmission mode
is retained for only 2 seconds after pressing a key, so
if the next key is not pressed within this time limit, the
transceiver stops transmitting.
DTMF M
ONITOR
When pressing the Mic DTMF keys, you will not hear
DTMF tones emitted from the speaker. However, you
can monitor the DTMF tones if desired.
1 Press [F], [MENU] and turn the Tuning control to
select Menu No. 33 (DT.M).
2 Press [MENU] and turn the Tuning control to select
"ON" or "OFF" (default).
3 Press [MENU] to store the setting or any other key to
cancel.
4 Press any key other than [MENU] to exit Menu Mode.