Ctcss - Standard Communications TX3200 Instruction Manual

CTCSS (Continuous Tone Coded Squelch
System) is a squelch quieting system that
uses one of 50 preset sub-audible (very
low frequency) tones to open and close the
squelch on your radio. The system applies a
continuous low level tone to your transmission,
and a matching tone decoder to your receiver's
squelch. When CTCSS is enabled, the channel
remains quiet until someone transmits using
the selected tone. When the transmission
ends, the channel becomes quiet again. By
using different tones, several groups of people
can share the same channel without disturbing
each other.
Your TX3200 allows CTCSS to be enabled or
disabled on individual channels. In addition,
the CTCSS tone frequency used is user
programmable. Note that the CTCSS tone
you select will be used for all CTCSS enabled
channels.
When CTCSS is first enabled, it must be set up
as follows:
To enable CTCSS on your radio, use the
following procedure:
1. Switch the TX3200 OFF at the volume
control.
2. Press and hold the SQL and PRI keys while
turning the radio on again. "SILENT" will
be flashing and "BUSY" will be visible. The
channel number will now correspond to
one of 50 different CTCSS tones as shown
in the table below. The factory default is 00.
3. To select the desired receive tone, rotate
the channel switch until the required tone
number is displayed.
4. Press and hold the SQL key. The display
will flash and a high beep will be heard as
the receive tone is stored.
5. Now briefly press the SQL key to select the
transmit tone. "SILENT" will be flashing
and "TX" will be visible.
6. Select the desired transmit tone using the

CTCSS

channel switch. Press and hold the SQL
key to store the tone.
7. Now switch the radio OFF then ON again to
return to normal operation.
NOTE: To disable the sending or receiving of
CTCSS tones, set either tone to 00. If both
transmit and receive tones are set to 00, the
CTCSS function is disabled and can not be
selected.
To enable the CTCSS function on a channel:
1. Select the required channel.
2. Press and hold the SQL key until a high
beep is heard. "SILENT" will be displayed.
You may activate CTCSS on as many channels
as you wish except channels 1 - 8 (CTCSS is
automatically disabled on repeater channels
and the emergency channel 5).
To de-activate CTCSS, repeat the steps above.
A low beep will be heard and "SILENT" will
disappear.
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