13
Operations
CTCSS
CTCSS (Continuous Tone Coded Squelch System)
CTCSS uses a sub-audible tone to open and close the squelch on your radio.
This will allow a number of users to share the same channel without disturbing
one another.
MO / TSQID / CALPRI / LO SC / MEM F/ DPX
MENU
QUIET
ALPHA
OS / GS
Monitoring the Channel
Monitoring the channel is helpful as it allows you to listen for other CTCSS users
not within your group.
To monitor the channel
Press the MO/TSQ button. If no signals are present, a hissing noise will indicate
an empty channel.
Press the MO/TSQ button again to restore to its previous setting.
Selecting the Required CTCSS Tone
To pre-select the CTCSS tone on your radio, please refer to the MENU settings
on page 20.
Enabling CTCSS on a Channel
If a CTCSS tone has been selected, it is enabled on all channels (except 5/35).
1. Rotate the Channel knob to select the required channel. The letters "TSQ" will
appear.
2. Press and hold the MO/TSQ button.
MO / TSQID / CALPRI / LO SC / MEM F/ DPX
MENU
QUIET
ALPHA
OS / GS
Disabling CTCSS on a Channel
Repeat steps 1 and 2 above.
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