11
SIGNALING
Q
UIET
T
ALK
(QT)/ D
IGITAL
Q
UIET
T
ALK
(DQT)
Your dealer may have programmed QT or DQT signaling on your transceiver channels. A QT tone/
DQT code is a sub-audible tone/code which allows you to ignore (not hear) calls from other parties
who are using the same channel.
O
PTIONAL
S
IGNALING
Your dealer may also program several types of optional signaling for your transceiver channels.
2-tone Signaling:
2-tone Signaling opens the squelch only when your transceiver receives a call
containing matching 2 tones.
DTMF Signaling:
DTMF Signaling opens the squelch only when the transceiver receives a call
containing a matching DTMF code.
FleetSync Signaling:
Refer to “S
ELCALL
(S
ELECTIVE
C
ALLING
)” on page 12.
MDC-1200:
MDC-1200 is a data system using Audio Frequency Shift Keying (AFSK). MDC-1200
signaling opens the squelch only when the transceiver receives a call with a matching MDC-1200 ID
code.
O
PERATOR
S
ELECTABLE
T
ONE
(OST)
You can change the preset encode and decode tones for the selected channel. Up to 40 OST pairs
can be pre-programmed by your dealer.
1
Select your desired channel.
2
Press and hold the key programmed as
OST
.
• “TONE” appears on the display, followed by the current OST number.
3
Press / (if the key assignment list selection is configured as “Enabled”) or
<B
/
C>
to select your
desired OST number.
• You can also directly enter a number from 01 to 40 using the keypad.
4
Use the transceiver the same as in a regular call.
5
To exit OST mode and return to the preset encode/decode tones, press
.
