Autopatch (U.s.a. Version Only) - Kenwood TM-721A Instruction Manual

in Europe a 1750 Hz tone is used in transmit. Press and
hold the TONE key to transmit the access tone, then press
the PTT switch.
In the United Kingdom a 1750 Hz tone burst at the beginn-
ing of each transmission is used. Press the Tone key.
Since use of this tone is required in the Europe and the
United Kingdom, and 1750 Hz tone encoder is enciuded as
standard equipment.
@ Tone Activation (TM-721A only)
To activate the TONE function depress the TONE key.
The T indicator will appear in the display to signify the tone
has been activated. To turn the tone OFF press the TONE
key again.
Tone frequency selection Tone Frequency
1. Press the F key and then 67.0 Hz | 107.2Hz | 167.9 Hz
T 7 . 71.9 Hz | 110.9hz | 173.8 Hz
ONE/T.SEL key 74.4Hz | 114.8Hz | 179.9 Hz
The current tone fre- 770 tz [118.8 Hz | 186.2 He
quency will be dis- 79.7 Hz | 123.0 Hz | 192.8 Hz
82.5 Hz | 127.3 Hz | 203.5 Hz
played. 85.4 Hz | 131.8Hz | 210.7 Hz
2. Rotate the MAIN Tun- 88.5 Hz | 136.5 Hz | 218.1 Hz
ing control or press the 91.5 Hz 141.3 Hz | 225.7 Hz
- : 04.8 tz | 146.2 He | 239.6 He
Microphone
UP/DWN | trozatalisia te | 241.8 He
switches until the 700.0 Hz | 156.7 Hz | 250.3 Hz
desired tone frequency {103-5 Hz | 162.2 he
appears in the display. Note: 27.4 Hz is available only
3. To turn to the normal frequency display, press the
TONE key, any one of the keys, or Microphone PTT
switch. Or automatically release return after 5
seconds of the selection.
4-4-4, AUTOPATCH (U.S.A. version only)
Some repeaters offer a service known as autopatch. This
allows you to dial a telephone number from your
transceiver and carry out a telephone conversation, much
like a car telephone, or cellular telephone. This function re-
quires the use of a DTMF (Dual Tone Multi Frequency) pad.
In addition to the normal 12 keys that are found on your
telephone the MC-488 microphone also provides 4 addi-
tional keys, A, B, C, and D. These keys are required by
some repeater systems for various control functions. You
should check with the control operator of your repeater to
determine if their use is required. A chart is provided that
lists the tones that are generated when you press each key.
1. To activate the DTMF pad, press and hold the PTT
switch.
2. Now press the keys just as you would dial a telephone.
3. The transceiver wiil remain keyed for about 2 seconds
after you press each number, so you can release the PTT
switch without unkeying the transceiver.
Note:
Some repeaters will re- Audio tones (Hz)
quire a special sequence Column
. 1209 | 1336 | 1477 | 1633
of keys to activate the Row
Autopatch. Again you 697 1 2 3]a
should check with the
770 | 4 5 6 8
contro! operator of your
repeater for this se- 852 U 8 9 c
quence. 941 * 0 # Dd
21