PAGE 16 INSTRUCTION MANUAL TX675
To Select a CTCSS or DCS Code
1. Press and hold the MENU key until the radio beeps. ‘ct’ (for CTCSS) or ‘dt’ (for
DCS) will be displayed.
2. Press the
or keys to select the required tone/code.
3. To select CTCSS tones 01 to 50 press the
or keys while ‘ct’ is displayed.
When a CTCSS code is selected the icon is displayed.
4. To select DCS codes, hold the
key to scroll past CTCSS tone 50 until ‘dt’ is
displayed. Now use the or keys to select the required DCS code 001 to 104.
When a DCS code is selected the icon is displayed.
5. To return to CTCSS tones hold the
or keys until ‘ct’ is displayed again.
6. To turn CTCSS/DCS tones off, hold the
or keys to step to the end of the code
list until ‘oF’ is displayed.
7. Press the PTT to confirm and store your selection. The
(CTCSS) or icon
remains on the display to confirm the code system you have selected.
To enable Silent mode on a channel
1. Select the required channel.
2. Press and hold the SQL key for about 2 seconds. The selected code number will be
displayed on that channel.
3. The selected channel will now remain silent unless a signal is received containing
the chosen code.
NOTE: Silent mode will only be enabled on channels you select. Other channels will
remain open to all incoming signals.
To Disable Silent mode on a Channel
1. Select the required channel. The CTCSS/DCS Code will be displayed.
2. Press and hold the SQL key for about 2 seconds. The selected code number will
disappear from the display on that channel. The selected channel will now be open
to all incoming signals.
TRANSMITTER POWER
The transmitter power can be set to High or Low. The power setting applies to the
selected channel (except 5/35).
To Set the Transmit Power
1. Press and hold the MENU key until the radio beeps.
2. Briefly press the MENU key repeatedly until ‘Po’ is displayed. ‘Hi’ or ‘Lo’ will be
flashing.
3. Press the
or keys to select the required power setting. Select ‘Hi’ for high
power or ‘Lo’ for low power.
4. Press the PTT to confirm and store your selection.
The radio should now display the selected channel number along with the HI or LO
icon to indicate the transmit power you have set.
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