TC-446S Owner
’s Manual
14
Functions and Operations
CTCSS/CDCSS
You may set up talkgroups with unique CDCSS/CTCSS to prevent unwanted conversations at the same
frequency. If CTCSS/CDCSS is set on a certain channel, you can only receive voice calls from radios
with matching CTCSS/CDCSS. Otherwise you will receive voice calls from all users operating at the
same frequency.
You may request your dealer to program corresponding parameters on certain channels. For detailed
operation method, please consult your dealer.
Note:
The radio supports 38 groups of standard CTCSS, 83 groups of standard CDCSS, and 180
degree CTCSS tail reverse.
Time-out Timer (TOT)
The purpose of TOT is to prevent any user from occupying a channel for an extended period. If the
preset time expires, the radio will automatically terminate transmission and keep beeping. To stop
beeping, please release the
PTT
key. You must wait for a certain time period (preset by your dealer)
before you can press and hold down the
PTT
key to transmit again.
If the pre-alert function is set by your dealer, your radio will alert you to the TOT expiration in advance.
Monitor
This feature allows you to lower the conditions for incoming signal match.
Operation:
Press the programmed
Monitor
key to activate this function (an alert tone sounds); press it
again to deactivate the function (the alert tone sounds twice). Or
Press and hold the programmed
Monitor Momentary
key to activate this function (an alert tone
sounds); release the key to exit (the alert tone sounds twice).
