RadioShack Pro 2048 Home Scanner Owners Manual

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2. Using a pointed object, such as
a straightened paper clip, press
RESET on the back of the scan-
ner. The display resets, and the
scanner turns off.
3. Press
 POWER to turn on the
scanner again.
INITIALIZING THE 
SCANNER
If the scanner or its display does not
work properly even after resetting it,
follow these steps to initialize the
scanner.
Caution: Initializing the scanner
clears all the channels you stored in
memory. Initialize the scanner only
when you are sure it is not working
properly.
1. If the scanner is off, press
POWER to turn it on.
2. Hold down 
•/CLEAR, then press
RESET on the back of the scan-
ner using a pointed object, such
as a straightened paper clip.
The display resets, and the
scanner turns off.
3. Press 
POWER to turn on the
scanner.
RESET DC 12VEXT SP
RESETDC 12VEXT SPANT
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CONNECTING AN 
EARPHONE/
HEADPHONES/
EXTERNAL SPEAKER
The 1/8-inch EXT SP jack on the back
of the scanner lets you connect an
optional earphone (such as Cat. No.
33-175), headphones (such as Cat.
No. 20-210), or an external speaker
(such as Cat. No. 21-549).
Note: 
Connecting any external de-
vice to the
 EXT SP jack automatically
disconnects the internal speaker.
Listening Safely
To protect your hearing, follow these
guidelines when you use an ear-
phone or headphones.
• Do not listen at extremely high
volume levels. Extended high-
volume listening can lead to per-
manent hearing loss.
• Set the volume to the lowest set-
ting before you begin listening.
After you begin listening, adjust
the volume to a comfortable
level.
• Once you set the volume, do not
increase it. Over time, your ears
adapt to the volume level, so a
volume level that does not
cause discomfort might still
damage your hearing. 
Traffic Safety
Do not wear an earphone or head-
phones while operating a motor vehi-
cle or riding a bicycle. This can
create a traffic hazard and could be
illegal in some areas.
Even though some earphones and
headphones let you hear some out-
side sounds when listening at normal
volume levels, they still can present a
traffic hazard.
RESET DC 12V
EXT SPANT
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UNDERSTANDING YOUR SCANNER
Once you understand a few simple terms we use in this manual and familiarize
yourself with your scanner’s features, you can put the scanner to work for you.
You simply find the communications you want to receive, then set the scanner
to scan those frequencies.
A 
frequenc
y is the tuning location of a station (expressed in kHz or MHz). To
find active frequencies, you can use the 
limit 
search function which lets you
search within a specific range of frequencies or the 
direct search function
which lets you search up or down from the currently displayed frequency.
When you find a frequency, you can store it into a permanent memory location
called a 
channel, which is grouped with your other channels in a 
channel-
stora
ge bank. You can then 
scan the channel-storage banks to see if there is
activity on the frequencies stored there. Each time the scanner finds an active
frequency, it stays on that channel until the transmission ends.
Another option is to store the frequency into a temporary memory location
called a 
monitor memor
y until you decide to move it to a channel.
Just keep in mind — you search frequencies and scan channels.
A LOOK AT THE FRONT PANEL
This look at the scanner’s front panel will help you understand each control’s
function.
VOLUMESets the scanner’s volume.
SQUELCHAdjusts the scanner’s receiver sensitivity to help you elim-
inate background noise.
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SCANStarts scanning through the stored channels.
MANUALStops scanning and lets you manually enter a channel
number.
L/O/SEARCH SKIPTurns the selected channel’s lockout function on and off,
or skips a specified frequency during a limit or direct
search.
DELAYPrograms a 2-second delay for the selected channel.
PRI/HYPER SEARCHSets and turns on and off the priority function for a partic-
ular channel, or selects the HyperSearch speed.
MONStores frequencies into and accesses the 10 monitor
memories.
LIMIT Used to set the lower or upper limit during frequency
searches.
SPEEDChanges the scanning or search speed.
POWER Turns the scanner on and off.
D — Enters the up or down direction in the search mode.
Number Keys
 Each key has a single-digit label and a range of numbers.
The single digits are used to enter a channel or a frequen-
cy. The range of numbers (21
–40, for example) above the
key indicates the channels that make up a channel-stor-
age bank.
•/CLEAREnters the decimal point in a frequency, or clears an incor-
rect entry. Also used when you initialize the scanner.
ENTEREnters programmed frequencies into channels.
PGMPrograms frequencies into channels.
WXSearches through the seven preprogrammed weather
channels.
DATATurns the data skip feature on and off.
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A LOOK AT THE DISPLAY
The display’s indicators show the scanner’s current operating mode.
MONAppears when you listen to a monitor memory.
BANKAppears with numbers (1–10) next to it to show which
channel-storage banks are turned on for scanning.
SCANAppears when you scan channels. Blinks when the scan-
ner is in the HyperScan mode.
MANUALAppears when you manually select a channel.
PROGRAMAppears while you program frequencies into the scan-
ner’s channels.
Appears when you are hearing a priority channel.
CHDigits to the left of this indicator show which channel the
scanner is tuned to.
MHzDigits to the left of this indicator show which frequency the
scanner is tuned to.
PRIORITYAppears when you turn on the priority channel feature.
LOCKOUTAppears when you manually select a locked channel, or
during a search hold when the frequency is stored in
search skip memory. 
P
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DATAAppears while the data skip function is turned on.
DELAYAppears when you program a channel for a two-second
delay before scanning or when you listen to a channel
programmed with the delay feature.
WXAppears when the scanner is in the weather band mode.
s and 
tIndicates the search direction. Blinks in the high speed
search mode.
SEARCHAppears during a limit (-L-) or direct (-d-) search or
weather scan. Blinks in the HyperSearch mode.
ErrorAppears when you make an incorrect entry.
LoAppears when you program the lower limit for a frequency
search.
HiAppears when you program the upper limit for a frequency
search.
-h-Appears during a direct search hold. 
-H-Appears during a limit or weather search hold. 
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UNDERSTANDING THE 
SCANNER ’S MEMORY
You can store up to 210 frequencies
into your scanner’s memory. This
scanner has 200 channel memories
and 10 monitor memories.
Channel-Storage Banks
To make it easier to identify and se-
lect the channels you want to listen
to, channels are divided into 10 chan-
nel-storage banks of 20 channels
each. Use each storage bank to
group frequencies, such as the po-
lice department, fire department, am-
bulance services, or aircraft (see
“Guide to the Action Bands” on
Page 31).
For example, the police department
might use four frequencies, one for
each side of town. You could pro-
gram the police frequencies starting
with Channel 1 (the first channel in
Bank 1) and program the fire depart-
ment starting with Channel 21 (the
first channel in Bank 2).
Monitor Memories
The scanner has 10 monitor memo-
ries. You can use these memories to
temporarily store frequencies while
you decide whether or not to store
them into channels. This is handy for
quickly storing an active frequency
when you search through an entire
band. You can manually select these
memories, but you cannot scan
them. See “Searching For and Tem-
porarily Storing Active Frequencies”
on Page 20.
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OPERATION
TURNING ON THE 
SCANNER/SETTING 
THE VOLUME AND 
SQUELCH
1. Turn SQUELCH fully clockwise.
2. Press 
POWER to turn on your
scanner. The scanner continu-
ously scans the unlocked chan-
nels.
Note: If you have not stored any
frequencies into channels, the
scanner does not scan.
3. Press 
MANUAL to stop the scan-
ning. The display shows the cur-
rent channel.4. Turn 
VOLUME clockwise to set
the scanner’s volume about 1/4
of the way between MIN and
MAX.
5. Turn 
SQUELCH counterclock-
wise until you hear a hissing
noise.
6. Adjust 
VOLUME to a comfortable
level.
7. Slowly turn 
SQUELCH clockwise
until the hissing noise stops.
Squelch Tips:
• If the scanner picks up un-
wanted or weak transmis-
sions, slightly turn 
SQUELCH
clockwise to decrease re-
ceiver sensitivity.
• If the scanner does not pick
up any transmissions, slightly
turn 
SQUELCH counterclock-
wise to increase receiver sen-
sitivity.
8. To turn off the scanner, press
POWER.
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MANUALLY STORING 
FREQUENCIES IN 
CHANNELS
You can manually store up to 200 fre-
quencies into your scanner’s chan-
nels. 
Great references for active frequen-
cies are the RadioShack “Police Call
Guide including Fire and Emergency
Services,” “Official Aeronautical Fre-
quency Directory,” and “Maritime
Frequency Directory.” We update
these directories every year, so be
sure to get a current copy.
If you do not have a reference to fre-
quencies in your area, you can use a
limit or direct search to find a trans-
mission (see “Searching For and
Temporarily Storing Active Frequen-
cies” on Page 20).
Follow these steps to manually store
frequencies.
1. Press 
MANUAL to stop the scan-
ning. 
2. Enter the channel number where
you want to store a frequency.
3. Press PGM. BANK and the bank
number, the selected channel
number and 
CH, 000.0000
MHz
, and PROGRAM appear.
4. Enter the frequency you want to
store, including the decimal
point.
Note: 
When you enter a fre-
quency, the scanner automati-
cally rounds it to the nearest
valid number. For example, if
you enter 
151.473, your scanner
rounds it up to 151.475.
5. Press 
ENTER to store the fre-
quency into the selected chan-
nel.
Note:
 If you made a mistake in
Step 4, 
Error appears. Repeat
Steps 4 and 5.
6. To program the next channel in
sequence, repeat Steps 3–5. To
program other channels not in
sequence, repeat Steps 2–5.
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SEARCHING FOR AND 
TEMPORARILY 
STORING ACTIVE 
FREQUENCIES
You can search for frequencies using
a limit or direct search, then tempo-
rarily store frequencies into monitor
memories.
Limit Search
A limit search lets you search for ac-
tive transmissions within a specified
range of frequencies.
Note: 
You can also use the scan-
ner’s delay feature while using a limit
search (see “Using the 2-Second De-
lay” on Page 27).
Follow these steps to search for ac-
tive frequencies using a limit search.
1. Press 
PGM, then LIMIT. Lo and a
frequency appear.
2. Using the number keys, enter
the lowest frequency (including
the decimal point) you want to
search within the desired fre-
quency range, then press
ENTER.Note: 
If you enter an invalid fre-
quency, 
Error appears. To cor-
rect this, simply repeat the step.
3. Press
 LIMIT. Hi and a frequency
appear.
4. Using the number keys, enter
the highest frequency you want
to search within the desired fre-
quency range, then press
ENTER.
5. Press D to search upward from
the lower to the upper limit, or
press — to search downward
from the upper to the lower limit.
-L-, SEARCH, and s or t
appear, and the next available
monitor memory flashes.
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