Please read this user’s guide before installing,
setting up and using your new product
www.radioshack.com
Contents
Thank you for purchasing your Pro-2051 1,000-channel,
triple-trunking scanner from RadioShack. Signal stalker
allows you to lock on frequencies within 1,000 feet, without
programming. The PC interface lets you program your
scanner using your computer. Support for Motorola, LTR and
EDACS trunked systems permits you to access most any
police, fi re and emergency system. With built-in Skywarn,
you will be able to stay up to date with the reports called in
by storm spotters.
user’s guide • quick start guide • preprogrammed frequency addendum
Scanner
AC adapter
Mounting
bracket
Antenna
DC cable w/fuse
Knob (2)
Lock washer (2)
Screw (2)
2
The Basics
The Basics
your scanner’s keypad 6
your scanner’s rear view 8
your scanner’s display 9
the FCC wants you to know 10
step 1: install your scanner 11
mounting the scanner in your vehicle 11
step 2: power your scanner 12
from a wall outlet 12
through your vehicle’s ignition (negative ground only) 12
from your vehicle’s cigarrette lighter 13
step 3: connect your scanner 14
connecting the supplied antenna 14
connecting an external antenna 14
connecting an external speaker 15
step 4: set up your scanner 17
turn on your scanner 17
set the squelch 17
listen to preprogrammed frequencies 18
common scanner terms 18
scanning overview 18
3
Contents
Beyond the Basics
advanced scanner features 20
channel storage banks 20
storing known frequencies into channels 20
deleting a stored frequency 22
locking out channels 22
hold/resume 24
direct channel access 24
scanning a private bank 25
priority scan 26
changing the priority channel 26
service scanning 27
band search 28
data skip 29
frequency skip 30
storing search frequencies 30
delay 31
highway patrol alerts 32
highway patrol/local police scanning 32
scanning highway patrol, local police,
and private frequencies 34
scan hold 35
highway warning alert 35
highway patrol priority channels 36
trunked highway frequencies 37
4
Contents
Skywarn 38
NWR SAME 39
Signal Stalker 42
setting the signal stalker options 43
trunk tracking 46
EDACS tracking 59
an EDACS trunked system 60
special EDACS features 60
tracking LTR systems 62
tracking Motorola systems 63
fl eet map programming 64
wired programming 75
cloning your scanner 76
birdies 77
replacing the fuse in the DC power cord 77
resetting your scanner
78
frequently asked questions (FAQs) 79
specifi cations 81
glossary 82
care 83
service and repair 83
warranty 84
5
Contents
your scanner’s keypad
Your scanner’s keys have various functions labeled on and
around the keys.
To select the function labeled on a key, simply press the
key.
To select the function labeled above or beside a key, fi rst
press FUNC, then release it. F appears on the display.
Then quickly press the next key in the function key
sequence while F appears. F appears or disappears each
time you press FUNC.
SQL/FLASH — adjusts
squelch volume. Adjusts
brightness of ALERT light..
MUTE — mutes the alert
tone
VOL/ALERT —turns the
power on/off. Adjusts
volume level. Changes the
alert tone level.
DELAY — sets/resets the delay
function for each channel or each
mode (band search, service scan).
L/O — locks/unlocks a selected
channel or frequency.
6
or d — press to
e
scan or search in
either direction.
HOLD/RESUME/
— holds or resumes
the scan. Also used
along with FUNC +
.
DATA — turns the data
skip function on/off.
PRI — turns the priority
scan and priority ID scan
functions on/off.
Contents
STATE — selects the state code.
PVT/HWY/POL— Scans the private scan
bank; scans the private scan bank and
highway frequencies (or local police) when
pressed in highway scanning mode. Also,
used with FUNC + HWY/POL.
SRCH/SVC — selects the search band.
Starts ID search mode. Also, used with
FUNC + SVC.
TRUNK — Turns on trunk tracking.
FUNC— Lets you use various functions
by pressing this key in combination with
other keys. Press and release FUNC. Then
press the next key.
0-9/WX ALT — enter
numbers for various
functions. For weather
alert, press FUNC +1.
For M-LOCK, press
FUNC + 9.
./CLR/ — enter a
decimal point or clear
an incorrect entry.
Also, used with FUNC
+
E/PGM — store the
frequency. Also, used
with FUNC + PGM.
Press These ButtonsTo Do This
FUNC + SVCToggle service scan.
FUNC + PGMProgram frequencies into channels.
FUNC + M-LOCKLock or unlock the memory.
FUNC +
FUNC + WX ALTTurn the WX alert function on or off.
Jump directly to the last channel in memory
(Ch1000) from any mode.
Switch between the three signal stalker modes.
frequencies and local police bank in highway
mode.
.
7
Contents
your scanner’s rear view
ANT — connect the supplied
antenna or an external
antenna here.
DC 12V — connect a power
source here.
PC/IF — connect data cable
for cloning or connecting
to a PC.
EXT SP — connect an external
speaker here.
8
Contents
your scanner’s display
TRUNKappears during trunk tracking mode
Mappears when a Motorola trunking channel is
selected
Eappears when an EDACS trunking channel is
selected
Lappears when an LTR trunking channel is
selected
LISTindicates a scan list
BANKindicates a scan bank
1 - 10indicates a bank’s number and ID list number
PGMindicates program mode
HIGHWAYindicates highway patrol scan mode
PRIVATEindicates private bank scan mode
POLICEindicates police scan mode
SERVICEindicates service scan (WX, fi re/emergency,
news, CB, air, railroad, marine) mode
M-LOCKindicates the memory is locked
Fappears when function mode is on
indicates that signal stalker is active
Pappears when you select a priority channel and
talk group
HOLDindicates scan hold or search hold mode
e or d
SRCHindicates band search mode
PRIappears when the priority feature is turned on
L/Oindicates lockout channel and talk group
DLYappears when you select a delay
DATAappears when the data skip feature is turned
FLASHappears while the ALERT light is off
indicate search direction
on
9
The Basics
Note
the FCC wants you to know
This equipment has been tested and found to comply with
the limits for a Class B digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and
can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful
interference to radio communications.
However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one
or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and
receiver.
• Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
• Consult your local RadioShack store or an experienced
radio/TV technician for help.
Note
Mobile use of this scanner is unlawful or requires a
permit in some areas. Check the laws in your area before
using.
10
The Basics
Note
step 1: install your scanner
mounting the scanner in your vehicle
Before you mount the scanner, make sure you have all the
necessary materials. Then confi rm your vehicle has enough
room to mount: 2.44” high by 7.06”wide by 6.10” deep
(50.8 x 176.5 x 152 mm).
Note
Be sure to avoid obstructions behind the mounting
surface.
Follow these steps to mount the scanner in your vehicle.
To mount your scanner on top of the dashboard, rotate the
bracket so the ears point up. To use on a fl at surface, fl ip
down the built-in stand underneath the scanner.
slide scanner into
bracket
1. Choose a mounting location, then use the supplied
mounting bracket as a template to mark the positions for
the mounting holes.
2. In the marked positions, drill holes slightly smaller than
the supplied screws.
3. Attach the mounting bracket to the mounting location
using the supplied screws and lock washers.
4. Attach the scanner to the mounting bracket using the
supplied mounting knobs.
11
The Basics
Note
Notes
step 2: power your scanner
from a wall outlet
Rear View
1. Connect the tip of the supplied AC adapter to the DC 12V
jack at the rear of your scanner.
2. Plug the AC adapter into your wall outlet.
Notes
You must use a Class 2 power source that supplies 12V
DC and delivers at least 500mA. Its center tip must be set
to positive and its plug must fi t the scanner’s DC 12V jack.
Using an adapter that does not meet these specifi cations
could damage the scanner or the adapter.
To prevent electric shock, do not use the AC adapter’s
polarized plug with an extension cord, receptacle, or
other outlet unless you can fully insert the blades to
prevent blade exposure.
through your vehicle’s ignition (negative
ground only)
Note
If you are not experienced in connecting accessories to
the vehicle fuse box, use a certifi ed installer.
1. Disconnect the cable from the negative (-) terminal of
your vehicle’s battery.
2. Ground the black wire of the
supplied DC power cord to
your vehicle’s chassis.
12
The Basics
Note
Note
Be sure the grounding screw makes complete contact
with the metal frame of your vehicle.
3. Connect the red
wire of the supplied
DC power cord to a
voltage source that
Rear View
turns on and off with
the ignition switch, such as a spare accessory terminal in
your vehicle’s fuse box.
4. Insert the power cord’s barrel plug into the scanner’s DC 12V jack.
5. Reconnect the cable to the negative (-) terminal of your
vehicle’s battery.
from your vehicle’s cigarrette lighter
To power your scanner from a 12V power source in your
vehicle, such as a cigarette-lighter socket, you need a 12V,
500 mA DC cigarette-lighter adapter (not supplied), available
at your local RadioShack store.
1. Insert the adapter’s barrel plug into the scanner’s DC 12V
jack.
2. Plug the adapter’s other end into your vehicle’s cigarette
lighter or power socket.
13
The Basics
step 3: connect your scanner
connecting the supplied antenna
Plug the telescoping
antenna into the ANT
connector. The antenna
length should be as shown
below.
FrequencyAntenna Length
25-174 MHzExtend fully (4 segments)
400-512 MHzExtend 2 segments
806-1300 MHzCollapse fully (1 segment)
connecting an external antenna
The ANT jack on the back of the scanner makes it easy to use
the scanner with a variety
of antennas.
You will need to connect
an external antenna when
you mount your scanner
in the dashboard of your
vehicle. You may also
want to connect an external antenna if you use
your scanner as a base station.
Your local RadioShack store sells a variety of antennas.
Always use 50-ohm coaxial cable, such as RG-58 or RG-8, to
connect an outdoor antenna. For lengths exceeding 50 feet,
use RG-8 low-loss dielectric coaxial cable. If your coaxial
cable does not have a BNC connector, you will also need a
BNC adapter (not supplied).
14
The Basics
Note
Note
When deciding on an antenna and its location, consider the
following:
• The location of the antenna should be as high as possible.
• The antenna and antenna cable should be as far as
possible from sources of electrical noise (appliances,
other radios, and so on).
• The antenna should be vertical for the best performance.
Note
Use extreme caution when installing or removing an
outdoor antenna. If the antenna starts to fall, let it go!
It could contact overhead power lines. If the antenna
touches a power line, touching the antenna, mast, cable,
or guy wires can cause electrocution and death. Call the
power company to remove the antenna. Do not attempt
to do so yourself.
connecting an external speaker
If you mount the scanner in your
dashboard or if you use it in a
noisy area, you may want to add
an external speaker (available at
your local RadioShack store) to
improve your ability to hear. Plug
the speaker cable’s 1/8 inch (3.5
mm) plug into your scanner’s
EXT SP jack.
Note
Connecting an external speaker disconnects the
scanner’s internal speaker.
Connect external
speaker here
15
The Basics
Listening Safely
To protect your hearing, follow these guidelines:
• Do not connect an earphone or headphones to the
scanner. The warning alert volume is not adjustable, and
damage to your hearing might result if a warning alert
sounds while an earphone or headphones is connected.
• Do not listen at extremely high volume levels. Extended
high-volume listening can lead to permanent hearing loss.
• Set the volume to the lowest setting 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.
16
The Basics
Note
step 4: set up your scanner
turn on your scanner
Turn VOL clockwise. The scanner turns on and the ALERT
indicator lights for a moment. Then the alert tone beeps and
TEST appears. The last setting you selected before turning
the scanner off appears.
Note
The alert tone depends on the currently selected setting
(see “Setting the Alert Tone Volume”).
set the squelch
Think of squelch as a gate. If the gate is too low (squelch too
low), everything (all noise as well as signals) gets through.
If the gate is set too high (squelch too high), nothing gets
through. If the gate is set just right (the squelch is set
properly), just the desired signals get through.
1. To set the squelch, press HOLD/RESUME to stop
scanning. HOLD appears. If needed, adjust VOL until you
do not hear a signal.
2. Turn SQL fully counterclockwise until you hear a hissing
sound. This lowers the “squelch gate,” allowing all signals
and noise to get through.
3. Turn SQL clockwise just until the hiss stops. This raises
the “squelch gate,” allowing only strong signals to get
through. In a city, you may want to adjust the squelch
even further clockwise to decrease the range of the
highway warning alert signal. This prevents the alert from
sounding unnecessarily due to farther, less important
sources.
17
The Basics
listen to preprogrammed frequencies
Your scanner comes preprogrammed from the factory
with 150 of the most frequently used frequencies stored in
Channels 1 to 150 of the private bank. You can scan these
frequencies as soon as you turn on the scanner.
common scanner terms
To fi nd a station, you must tune to a FREQUENCY (expressed
in kHz or MHz). To fi nd active frequencies, use the search
function or purchase a frequency reference.
In addition to searching a selected frequency range, you can
also search your scanner’s service banks. A
is a preset groups of frequencies categorized by the type
of services that use those frequencies. Your scanner comes
preprogrammed with all the frequencies allocated to the
weather, marine, aircraft, rail road, CB, news, and police/fi re/
emergency services.
When you search and fi nd a desired frequency, you can
store it into a
a CHANNEL. Channels are grouped into channel-storage
banks called a private bank. Your scanner has 10 CHANNEL
STORAGE BANKS and each bank has 100 channels. You can
scan the channel-storage banks to see if there is activity on
the frequencies stored in them.
PROGRAMMABLE MEMORY LOCATION called
SERVICE BANK
scanning overview
You can scan in one of four ways:
1. Highway Patrol/Local Police Scanning -- when you select
a state you want to scan in highway patrol/local police
mode, you can scan preprogrammed highway patrol/local
police frequencies.
18
The Basics
2. Service Scanning -- press FUNC + SVC to select one of
the service banks to fi nd an active frequency.
3. Band Search -- select a frequency band to search. The
search function is different from scanning. It searches for
any active frequency step by step within the lower and
upper limits of the band. When an active frequency is
found, the scanner will stop and stay on that frequency
as long as that transmission lasts. If that frequency is
interesting to you, press HOLD/RESUME to hold the
frequency on the display. Then program it into the private
bank you want to store. If you do not want to program
that frequency, press HOLD/RESUME or just wait until the
transmission ends. The search resumes automatically 2
seconds after the last transmission and looks for more
active frequencies.
4. Private Scanning -- the private bank is where you
program frequencies you want to store into channels.
Press PVT to scan frequencies you have programmed in
this bank.
To program frequencies, see “Storing Known Frequencies
into Channels”. When scanning stops on an active frequency,
it remains on that channel as long as the transmission
continues. When the transmission ends, the scanner will
remain on the same channel for 2 more seconds, waiting for
a responding transmission. If no responding transmission
occurs within 2 seconds, the scanning cycle resumes.
19
Beyond the Basics
advanced scanner features
In this section of the user’s guide, you will discover the
wide variety of features that make your scanner fl exible and
powerful. As you master these features, you will enhance the
value and enjoyment of owning your scanner.
channel storage banks
To make it easier to identify and select the channels you want
to listen to, you can assign channels to up to 10 channelstorage banks. Each bank has 100 channels. Use each
channel-storage bank to group frequencies, such as those for
the police department, fi re department, ambulance services,
or aircraft. For example, the police department might use
four frequencies in your town while the fi re department
uses an additional four. You could program the four police
frequencies starting with Channel 1 (the fi rst channel in bank
1), and program the fi re department frequencies starting with
Channel 101 (the fi rst channel in bank 2).
storing known frequencies into channels
You can locate and store specifi c frequencies into channels
for later use. Frequencies are widely available on the
Internet and from the FCC. To assist you in locating a desired
frequency from the scanner’s wide range, consider using a
frequency guide. Excellent references for active frequencies
are the RadioShack Police Call Guide, including Fire and
Emergency Services, and the Offi cial Aeronautical Frequency
Directory. We update these directories every year, so be sure
to get a current copy.
Follow these steps to store frequencies into channels.
1. Press FUNC + PGM. PRIVATE and PGM appear.
20
Beyond the Basics
Notes
2. Enter the channel number where you want to store
a frequency and press HOLD/RESUME to select the
channel.
3. Enter the frequency you want to store by using the
keypad and ./CLR.
4. Press E to store the frequency into the channel.
5. To store the next channel in sequence, press
Steps 3 and 4.
Notes
To clear a mistake while entering the frequency,
repeatedly press ./CLR until the display is cleared.
If you enter an invalid frequency, an error tone
sounds and Error appears. To clear the error message
immediately, press ./CLR.
Your scanner automatically rounds the entered number
to the nearest valid frequency. For example, if you enter
151.473 (MHz), your scanner accepts it as 151.475.
When you enter a frequency into a channel, your scanner
automatically turns on the delay function and DLY
appears on the display. When delay is turned on, the
scanner automatically pauses scanning 2 seconds after
the end of a transmission before scanning proceeds to
the next channel. To turn delay off or on, press DELAY.
If you enter a frequency that has already been entered
elsewhere, the scanner sounds an error tone and
displays the channel that was duplicated. If you entered
the frequency by mistake, press ./CLR, then enter the
correct frequency. To enter the frequency anyway, press E
to accept.
e and repeat
21
Beyond the Basics
Note
deleting a stored frequency
To delete a stored frequency, select a channel, press 0, and
then press E.
Note
Channels with no frequencies are automatically locked
out.
locking out channels
You can lock out reception of any channel so it is not
scanned during normal scanning. You can also restore the
channel to scanning whenever you wish.
Like conventional scanning, you can lock out reception of
unwanted traffi c. You can lock out up to 100 IDs. Press L/O
on the ID you want to lock out.
To restore all locked out IDs, hold down L/O for 2 seconds or
change the state code. If you fi nd an interesting ID you want
to continue listening to, press HOLD/RESUME. Press HOLD/
RESUME to resume scanning.
locking out a channel in hold mode
1. Press HOLD/RESUME and enter the channel number by
using the keypad, then press HOLD/RESUME.
2. Press L/O to lock out the channel. L/O appears on the
display.
locking out a channel in scanning mode
If the scanner keeps stopping on a particular channel due to
noise or frequent transmissions, you may want to keep that
channel from being received.
Wait until the scanner stops on the channel, then press L/O.
The scanner immediately resumes scanning because the
locked out channel is no longer in the scanning sequence.
22
Beyond the Basics
Note
Note
Note
Write down your locked-out channels and put them in a
convenient place in case you need to restore them.
memory lock
To avoid accidentally programming frequencies and talk
group IDs, you can lock the memory with
MEMORY LOCK.
Press FUNC + M-LOCK to activate this feature. M-LOCK
appears on the display. If you press E to program memory,
Prg-Loc appears. To deactivate memory lock, press
FUNC + M-LOCK again.
restoring a locked-out channel in hold mode
1. Press HOLD/RESUME and enter the channel number you
want to restore by using the keypad, then press
HOLD/RESUME.
2. Press L/O to unlock the channel. L/O disappears.
restoring all locked-out channels
You can restore all locked-out channels in a bank only when
a bank is selected for scan. If you have deselected a bank and
you want to restore all of its locked-out channels using the
steps below, you must repeatedly press PVT until PRIVATE
appears and then enter the number of the bank on the
keypad.
Note
Make sure the scanner is set to hold mode before
restoring all locked-out channels.
1. Press HOLD/RESUME.
2. Hold down L/O for about 2 seconds. The scanner beeps
twice when all channels have been restored.
23
Beyond the Basics
Note
hold/resume
To stop on a channel during scanning or to resume scanning,
press HOLD/RESUME.
direct channel access
To access a specifi c channel directly, press HOLD/RESUME,
use the keypad to enter the channel number, then press
HOLD/RESUME again.
Note
You can also press PVT,
e, or d instead of pressing
HOLD/RESUME the second time.
24
Beyond the Basics
Note
Notes
scanning a private bank
You can program frequencies into channels of the private
bank. There are 1000 channels in the bank. 150 of the
most frequently used frequencies are preprogrammed into
Channels 1 to 150. You can scan these frequencies as soon
as you turn on the scanner.
1 After programming frequencies, press HOLD/RESUME to
begin scanning. Or repeatedly press PVT until PRIVATE
appears, if the scanner is in another mode. Your scanner
scans all the channels upward.
2. The bank number indicators (1-10) selected for scanning
appear on the display, and the bank being currently
monitored fl ashes. You can deselect banks from active
scanning by entering their numbers on your keypad. The
indicator for each deselected bank disappears, and the
bank’s channels are not scanned.
Note
One bank must always be active. You cannot deactivate
all ten banks at the same time. If you try to deselect all
the banks, the fi rst bank is automatically selected.
To restore a bank to active scanning, enter the bank’s number
on your keypad. The bank’s indicator will display again.
During normal scanning the scanner skips unprogrammed
or locked out channels. When a transmission is received, the
scanner stops on that channel. When the transmission ends,
scanning resumes automatically.
Notes
You can set the scanner to hold on a frequency for
two seconds allowing time for a response. For more
information on the delay feature, see “Delay”.
During Signal Stalker operation, the delay time is 10
seconds. After 10 seconds have elapsed, or if you press
or HOLD/RESUME, the scanner resumes search.
25
e
Beyond the Basics
Note
Note
priority scan
When priority scan is turned on, your scanner checks the
priority channel in the banks you selected every two seconds
for activity. If a signal is present on the priority channel, your
scanner monitors the channel until the transmission ends,
then resumes normal scanning. You can designate one
channel in each bank as a priority channel. By default, the
fi rst channel in each bank is the priority channel, but you can
change this.
To activate Priority Scan (in either the private scan mode or
scan hold mode):
1. Press PRI. PRI appears.
Note
If you have locked out all the priority channels, an error
message appears when you select priority mode.
2. Press PRI again to deactivate priority scan. PRI
disappears.
changing the priority channel
You cannot eliminate the priority channel, but you can
change it to any one of the 100 available channels in each
bank.
1 Turn off the priority function if it is on.
2. Press HOLD/RESUME.
3. Select a new priority channel by entering the channel
number using the keypad. Then, press HOLD/RESUME.
4. Press FUNC + PRI. When the priority channel has been
changed, P appears on the display.
Note
Priority in trunking mode works just the same, except you
set them for talk group IDs instead of setting priorities for
26
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