Using On-Air Programming - Radio Shack PRO-99 Owner's Manual

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 FUNC, LIGHT, SQUELCH, and
VOLUME.
You cannot activate the key lock while you are entering a frequency into a channel.
1. To turn on the key lock, press FUNC then LIGHT/KEY LOCK. Key locked. appears for about 1 second. Key
locked. appears 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 FUNC and then LIGHT/KEY LOCK. The scanner beeps three times and Key
unlocked appears in the scanner's display.
ON-AIR PROGRAMMING
You can also program your scanner by receiving data transmitted on a frequency your scanner can receive
(called on-air programming).
You can use on-air programming to store the following data into the scanner:
. Channel number (from 000 to 949)
. Frequency (any frequency the scanner scan receive)
. Car number (from 0 to 999, including 00, 000, 01, and 001)
. Channel text tag
. Channel lockout setting (ON or OFF)
. Channel delay setting (ON or OFF)
. CTCSS code (67 Hz – 250.3 Hz)
. CTCSS setting (ON or OFF)
Notes:
. The scanner receives only the data shown above during on-air programming.
. Invalid Freq. or Invalid Ch appears if the scanner receives a channel number equal to 0 or frequency data
which is out of the range of frequencies the scanner can receive.
. Checksum Error appears if the scanner receives a checksum error.

USING ON-AIR PROGRAMMING

1. Press and hold FUNC for about 2 seconds. Then press 6 and 4. On Air Program appears on the display.