Key Lock; Turning The Key Tone On And Off - Radio Shack PRO-99 Owner's Manual

56
K L
EY OCK
Once you program your scanner,
you can protect it from accidental
program changes by turning on
the key lock feature. When the
keypad is locked, the only controls
that operate are
and .
VOL
You cannot activate the key lock
while you are entering a frequency
into a channel.
1. To turn on the key lock, press
and then õ/î.
FUNC
Key locked.
second.
when you press any key after
locking the keypad, and the
scanner sounds the low
pitched Invalid tone.
2. To turn off the key lock, press
and then õ/î. The
FUNC
scanner beeps three times
Key unlocked.
and
the scanner's display.
T
URNING THE
O
N AND
The scanner is preset to sound a
tone each time you press one of
its keys (except õ/î). You can
turn the key tone off or back on.
1. Press and hold
about 2 seconds. The menu
screen appears.
2. Press
8
2:Key Tone
3. Press
1
or press
2:Key Tone Off
, õ/î,
FUNC
appears for about 1
Key locked.
appears in
K
EY
O
FF
FUNC
and then
2
.
1:Key Tone On
to select
to select
2
.
,
SQ
appears
T
ONE
for
to select
,