RadioShack Pro 99 Compact Race Scanner Owners Manual

51 searching. When your scanner 
stops on a channel or frequency 
with a programmed delay, the 
scanner continues to monitor that 
frequency for 2 seconds after the 
transmission stops before 
resuming scanning, tuning, or 
searching. Delay is automatically 
set as the default for each channel 
or when you tune or search. 
D 
appears at the rightmost position 
on the first line when delay is set.
To turn off or on the 2-second 
delay in a channel or frequency, 
press 
FUNC then press 2/DLY while 
the...

52You can still manually select and 
monitor a locked-out car number 
frequency.
To remove the lockout from a car 
number frequency:
1. Enter the car number All 
Frequency mode.
2. Repeatedly press 
FUNC then 
SCAN to select locked-out car 
number frequency.
3. Press 
FUNC then 3/L/OUT.
Locking Out ChannelsTo lock out a channel while 
scanning, press 
FUNC and then
3/L/OUT when the scanner stops 
on the channel.
To lock out a channel manually, 
select the channel and then press 
FUNC, 3/L/OUT so L...

53
Clearing All Lockout 
Channels
1. Set the scanner to the 
conventional channel manual 
mode.
2. Press and hold 
./CLEAR, and 
then press 
3/L/OUT. All Locked 
out Channels Clear? Press 1 key
->YES Other key ->NO
 appears.
3. Press 
1 to clear the all lockout 
channels, or press any key 
other than 
1 to cancel clear.
Locking Out Search 
Frequencies
To lock out a frequency during a 
search, press 
FUNC and then 
press 
3/L/OUT when the scanner 
stops on that frequency. The 
scanner locks out the...

544. Press 
^ or v to scroll through 
the list. 
The locked-out number and 
the total locked-out number 
also appear as 
L/Olist XX of YY. 
(The tenth of twenty five 
locked out frequencies would 
appear as 
L/Olist 10 of 25). If 
the search bank has no 
locked-out frequencies,
L/O List Empty appears in the 
scanners display. Press 
SRCH/PAUSE to cancel 
reviewing locked-out 
frequencies.
Clearing a Locked-Out 
Search Frequency
To clear a locked-out frequency, 
select that frequency (see 
“Reviewing...

55 or 
L/O List ChXX appear on the 
display.
4. Press and hold 
./CLEAR for 
about 2 seconds. The 
scanner will display
Confirm list
clear? 1 -> YES.
Other key -> NO.
 
5. Press 
1 to clear all locked-out 
frequencies. 
L/O List Empty 
appears.
Press any key other than 
1 to 
cancel clear.
USING BACKLIGHT
You can turn on the displays 
backlight for easy viewing in the 
dark. Press õ/î to turn on the 
light for 5 seconds (default). If 
necessary, you can change the 
lighting time. See Changing the...

56
KEY LOCK
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, õ/î, SQ, 
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 
FUNC and then õ/î.
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...

57
CHANGING THE DISPLAY 
C
ONTRAST
1. Press and hold FUNC for 
about 2 seconds. The menu 
screen appears.
2. Press 
8 and then 3 to select 
3:LCD Contrast.
3. Press 
< or > to select
LCD contrast. Then press ENT 
to set the display contrast.
USING CLONE MODE
You can transfer the contents of 
the scanner’s memory to and from 
another PRO-99 scanner using an 
optional connecting cable with
1/8-inch (3.5 mm) phone plugs on 
both ends (use RadioShack part 
number 42-2420 available at your 
local RadioShack...

584. Press 
1 to send the data to 
the other unit, or press any 
other key to cancel the 
operation.
5. The scanner sends the data. 
Do not disconnect the PC/IF 
cable or interrupt power to 
either scanner while the 
transfer is taking place.
6. To exit the clone mode, 
remove the cable.
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...

59
USING ON-AIR 
P
ROGRAMMING
1. Press and hold FUNC for 
about 2 seconds. Then press 
8 and 4. On Air Program 
appears on the display.
2. Default receiving frequency is 
154.6 MHz. If you want to 
change the receive frequency, 
press 
2 and enter the 
frequency, then press 
ENT.
3. To start on air programming, 
press 
1. Ready to Receive 
appears on the display.
4. Send the data from the PC.
Start Program and the data 
being received by the scanner 
appear in the order they are 
received.
5. When the...

60Data Format — Asynchronous
Data Length — 8-bit
Parity — None
Stop Bit — 2-bit
Baud Rate — 1200 bps
Data Transmission Direction — 
One Way (Receive Only)
A GENERAL GUIDE 
TO SCANNING
GUIDE TO FREQUENCIES
National Weather 
Frequencies
Birdie Frequencies
Every scanner has birdie 
frequencies. Birdies are signals 
created inside the scanner’s 
receiver. These operating 
frequencies might interfere with 
transmission on the same 
frequencies. If you program one of 
these frequencies, you hear only 
noise on...