RadioShack Pro 92b Handheld Scanner Owners Manual

41Special Features
LOCKING OUT CHANNELS OR 
FREQUENCIES 
You can scan existing channels or search frequencies
faster by locking out channels or frequencies that have a
continuous transmission, such as a weather channel.
Locking Out Channels
To lock out a channel while scanning, press L/OUT when
the scanner stops on the channel. To lock out a channel
manually, select the channel then press 
L/OUT until L
appears.
Notes:
• You can still manually select locked-out channels.
• If you lock out a channel that...

42
Special Features
• You can lock out as many as 50 frequencies in each
bank. If you try to lock out more, 
Memory full!
appears.
• If you lock out all frequencies in one search bank
and only this search bank is activated, 
Search
up...
 All ranges locked out! appears and
the scanner does not search.
Reviewing Locked-Out Frequencies
Follow these steps to review the frequencies within a
search bank that you locked out.
1. Press 
SEARCH to start search.
2. Press 
FUNC then L/OUT. The locked-out frequency...

43Special Features
3. Turn SQUELCH fully counterclockwise until the indi-
cator points to 
MIN.
4. Press 
FUNC then 4. Confirm list clear?
1=YES Press other key for NO.
appears. Press 1 to clear all lock-out frequencies
and 
List cleared appears for about 2 seconds.
Press any key other than 
1, to cancel clear.
Note:
 You cannot clear all lock-out frequencies if all
frequencies in the selected bank are locked out. 
5. Turn 
SQUELCH clockwise and leave it set to a point
just until the hissing sound...

44
Special Features
3. Press FUNC then PRI. Pri appears to the right of
the frequency.
Note:
 This scanner cannot set a channel as the priority
channel if the channel’s receive mode is 
LTR, MOT, or
ED.
Follow these steps to program a weather channel as the
priority channel.
1. Press 
WX.
2. Select the weather channel you want to program as
the priority channel.
3. Press 
FUNC then PRI. Pri appears to the right of
the frequency.
To turn on the priority feature, press 
PRI while scanning.
Priority ON (or...

45Special Features
• The scanner always monitors the priority channel
even if it is in a bank that is set to closed mode (see
“Changing the Open/Closed Mode” on Page 58).
CHANGING THE RECEIVE MODE
The scanner is preset to the most common AM or FM re-
ceive mode for each frequency range. The preset mode
is correct in most cases. However, some amateur radio
transmissions and trunked systems do not operate in the
preset mode. If you try to listen to a transmission when
the scanner is not set to the correct...

46
Special Features
search band or follow these steps to change steps in a
specific bank.
1. Press 
SEARCH.
2. Press 
FUNC then repeatedly press   to select a
bank.
3. Turn 
SQUELCH fully counterclockwise until the indi-
cator points to 
MIN.
4. Press 
STEP continuously until you reach the desired
step.
5. Turn 
SQUELCH clockwise and leave it set to a point
just after the hissing sound stops.
These are the changeable frequency steps your scanner
uses for each frequency range.
USING THE ATTENUATOR
To...

47Special Features
USING THE DISPLAY BACKLIGHT
You can turn on the display’s backlight for easy viewing
in dimly lit areas. Press 
LIT to turn on the display light for
5 seconds. To turn off the light before it automatically
turns off, press 
LIT again.
TURNING THE KEY TONE ON AND OFF
Each time you press any of the scanner’s keys, the
scanner sounds a tone. Follow these steps to turn the
scanner’s key tone off or on.
1. If the scanner is on, turn 
VOLUME OFF/MAX 
counter-
clockwise until it clicks to...

48
Trunking Operation
2. Press FUNC then 9. Use Up/Down keys to set
contrast.
 appears.
3. Press   or   to select the contrast.
4. Press 
ENTER to set the display contrast.
CLONING THE PROGRAMMED DATA 
FROM SCANNER TO SCANNER
You can transfer the programmed data to and from an-
other RadioShack Cat. No. 20-522A or Cat. No. 20-196
scanner using the supplied clone cable. To clone the da-
ta, follow these steps.
1. Turn on both scanners.
2. Connect the supplied clone cable to each scanner’s
PC/IF jack....

49Trunking Operation
codes in the ID memory (see “Storing Talk Group IDs”
on Page 55). To listen to the transmission, the mode of
the programmed channel must be the same as that of
the trunking channel (LT, MO, or ED).
When an ID code is received, the ID list for the bank is
searched, and if found, the text name stored for the ID
appears. If not found, scanning resumes immediately
unless the bank is in open trunking mode. 
Note:
 There might be more than one talk group transmit-
ting at a time in some...

50
Trunking Operation
SETTING SQUELCH FOR THE 
TRUNKING MODE
Your scanner automatically mutes the audio during trunk
scanning when it decodes control channel data. Howev-
er, we recommend you turn 
SQUELCH clockwise and
leave it set to a point just after the hissing sound stops.
This lets the scanner quickly acquire the data channel.
PROGRAMMING TRUNKING 
FREQUENCIES
You program trunking frequencies just like non-trunked
frequencies, except that you must store the appropriate
mode (MO, ED, or LT) with...