Busy Channel Lock-Out (Bcl); Call Tone - Uniden UH820 Series Owner's Manual

Operation
Busy Channel Lockout
This feature prevents accidental transmission on a busy channel. For
example, BCL is used when CTCSS or DCS is selected to prevent
transmission when the radio detects a transmission from another unit
using the same CTCSS or DCS code.
1. Press [MENU/MEM] 9 times.
BCL setting flashes.
2. Press or to change the setting
on or off.
3. Press & hold [MENU/MEM] to save and exit.

Call Tone

The radio is equipped with 5 selectable call tones that will be
transmitted when [S] is pressed when Smart Key is set to Call Tone
function.
1. Press [MENU/MEM] 10 times.
CL setting flashes.
2. Press or to change the selection.
The 5 call tones are CL 1 to CL 5.
A sample of the call tone is sounded when selected.
3. Press & hold [MENU/MEM] to save and exit.
Current regulations require calling tones to be restricted to
one transmission per minute. If a second transmission is
attempted within one minute then an error tone will sound.
NOTE
UNIDEN UH820
22
Handheld UHF-CB Transceiver