Specifications

The squelch can be switched of (0 dB) or adjusted in 5 db steps. Selecting a smaller value
reduces the squelch threshold, selecting a higher value increases the squelch threshold. New
setting starts flashing on the display. Set the squelch threshold to the lowest possible value
that suppressed hissing noise. If the squelch threshold is set too high, the transmission
distance will be reduced.
5. Locking and Unlocking Controls
Press SET button until you will see the LCD display as below
You can lock the “ ” buttons to prevent accidental programming during operating.
Activating the Lock-mode function
Select “LOCK” in menu by pressing the “SET” button. Current setting is indicated on the
display. Press “” button to activate the lock-mode function. “LOCK ON” starts flashing on the
display. Press “SET” button to return to the main menu.
Note:
If you press “” / “” buttons, “LOCK” appears on the display informing that the buttons are
now locked.
Deactivating lock-mode function
Select “LOCK” in menu by pressing “SET” button. “LOCK ON” appears on the display.
Press ““” / “” buttons to deactivate the lock-mode function (“LOCK OFF” begins to flash on
the display) Press “SET” button to return to the main display. Now all functions can be
operated normally.