Topcom 9000 User Manual

Page 10

Topcom Twintalker 9000

13.7 CTCSS (Continuous Tone Coded Squelch System)

The 2 digit CTCSS code corresponds to a specific tone frequency the radio emits. Two users,
with the same channel and CTCSS set can hear one another.They will not be able to hear
anyone else on the channel unless the other radios have the same exact CTCSS code
enabled.

The PMR has 38 CTCSS codes available.

• Press

twice, the CTCSS code will flash

• Press

to select another code.

• Press

to confirm your selection and return to the NORMAL mode.

• To confirm and shift to the next option, press

NOTE: Any PMR set on the same channel can receive and listen to the
conversation, also when the other use a CTCSS code.

13.8 Monitor

You can use the MONITOR feature to check for weaker signals in the current channel.

• Press

and

simultaneous to activate channel monitoring. Hold these buttons for 3

seconds for contiuous monitoring.

• Press

to stop monitoring

13.9 VOX Selection

The PMR is capable of voice activated (VOX) transmission. In VOX mode, the radio will
transmit a signal when it is activated by your voice or other sound around you. VOX operation
is not recommended If you plan to use your radio in a noisy or windy environment.

• Press

3 times.

• Press

to turn the VOX feature ON and press

again to select the

VOX sensitivity level which is indicated in the right corner of the display.
Press

until OF appears on the display, to turn VOX OFF.

• In the VOX mode, the VOX icon will be displayed.
• To confirm your selection and return to the NORMAL mode, press

PTT