Radio Shack PRO-79 - Manual (Page 39)

39
Note: If you program a weather frequency into the priority chan-
nel and the scanner detects a WX alert tone on that frequency
(see “WX Alert” on Page 35), the scanner sounds the alert tone
and
ALErt flashes. Press any key to turn off the alarm.
USING THE DISPLAY BACKLIGHT
You can turn on the display’s backlight for easy viewing in the
dark. Press
LIGHT to turn on the light for 5 seconds. To turn off
the light sooner, press LIGHT again.
TURNING THE KEY TONE ON AND OFF
The scanner is preset to sound a tone each time you press one
of its keys (except
LIGHT ). You can turn the key tone off or back
on.
1. If the scanner is on, turn VOLUME counterclockwise until it
clicks to turn the scanner off.
2. While you hold down 2 and ENT , turn on the scanner.
3. When oFF tonE or on tonE appear, release 2 and ENT .
USING THE KEY LOCK
Once you program your scanner, you can protect it from acci-
dental program changes by turning on the keylock feature.
When the keypad is locked, the only controls that operate are
SCAN , MANUAL , LIGHT , VOLUME , and SQUELCH .
Note: The keylock does not prevent the scanner from scanning
channels or monitoring a single channel, whichever feature you
last selected.
20-314.fm Page 39 Monday, December 13, 1999 12:55 PM