BASIC OPERATION
LOCK Function
The lock function prevents accidental changes to the frequency setting and the keypad controls.
rTo activate the lock fea-
ture, press 
Ò 
. r In the LOCK mode, the “ 
” icon will appear on
the display.
r To turn the lock feature off, press 
Ò 
again.
rYou can still access the 121.500 MHz Emergency Fre- quency when the LOCK function is on. Simply press
the 
key momentarily (this key never locks). Press- ing this key also unlocks the radio.
Beep On/Off
The
When you are scanning, the beeper will be heard each time the scanner halts on a busy channel. This may be distracting in some environments; if you want to turn the beeper off (or back on again):
rPress and hold the 
key
for 2 seconds. This instantly recalls Menu Item
“Beeper.”
rPress the 
key to enable adjustment of this Menu Item.
rRotate the DIAL selector knob to select the desired selection.
On: Sounds a keypad beeper corresponding to a musical note.
DTMF: Sounds a keypad beeper corresponding to a DTMF tone.
Off: Keypad beeper is “off.”
rWhen you have made your selection, press the 
key to save the new setting, then press the PTT key repetitively until the radio exits to normal operation.
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