OWNER'S MANUAL
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Please read before using this equipment.
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PRO-2037
Programmable Scanner
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Cat. No. 20-461
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INTRODUCTION
Your new Radio Shack PRO-2037
Programmable Scanner lets you in on
all the action! This scanner gives you
direct access to more than 31,000 fre-
quencies that include police and fire
departments, aircraft communica-
tions, amateur radio, and ambulance
and transportation services. You can
select up to 200 channels to scan and
you can change your selection at any
time.
The secret to your scanner's ability to
scan so many frequencies is its cus-
tom-designed microprocessor-a tiny,
built-in computer.
Your scanner also has these special
features:
Hyperscan - scans 25 channels per
second and searches 50 frequencies
per second.
Headphones Jack - lets you con-
nect a pair of headphones or an ex-
ternal speaker.
Two-Second Channel Scan Delay
- delays scanning for 2 seconds be-
fore moving to another channel so
you can hear more replies.
Lockout Function - keeps selected
channels from being scanned so you
can skip over them.
Priority Channel - checks a chan-
nel you select every 2 seconds to
keep you from missing important
calls.
AM/FM Mode - automatically se-
lects the most common reception type
for the band you are scanning, and
lets you override the selection.
ATT Switch - reduces the scanner's
sensitivity to strong local signals.
Memory Backup - keeps channel
frequencies stored in memory for up
to 1 hour during a power loss.
Liquid-Crystal Display - shows the
selected channel and frequency.
Triple Conversion Superhetero-
dyne - eliminates any interference
from IF (Intermediate Frequency) im-
ages, so you only hear the selected
frequency.
Ten Channel-Storage Banks - let
you store 20 channels in each of ten
banks to group channels so calls are
easier to identify.
Monitor Memories - let you tempo-
rarily save up to ten channels you lo-
cate during a frequency search.
©
1994 Tandy Corporation.
Radio Shack is a registered trademark used by Tandy Corporation.
All Rights Reserved.
2
Note: Mobile use of this scanner is
unlawful or requires a permit in some
areas. Check the laws in your area.
For your important records, please re-
cord your scanner's serial number in
the space provided. The serial num-
ber is located on the back of the
scanner.
Serial Number: _
Your PRO-2037 covers the following
bands:
30 - 50 MHz (VHF Lo)
50 - 54 MHz (6-Meter Ham Band)
118- 136.975 MHz (Aircraft)
137 -144 MHz (Government)
144 - 148 MHz (2-Meter Ham Band)
148 -174 MHz (VHF Hi)
380 - 450 MHz (Ham Radio and Gov-
ernment)
450 - 470 MHz (UHF Lo)
470 - 512 MHz (UHF TV)
806 - 823.9875 MHz (UHF Hi)
849.0125 - 868.9875 MHz (UHF Hi)
894.0125 - 960 MHz (UHF Hi)
FCC NOTICE
Your scanner might cause radio or TV
interference, even when it is operat-
ing properly. To determine whether
your scanner is causing the interfer-
ence, turn off your scanner.Ifthe in-
terference goes away, your scanner is
causing the interference, Try to elimi-
nate the interference by:
• Moving your scanner away from
the receiver
• Connecting your scanner to an out-
let that is on a different electrical
circuit from the receiver,
• Contacting your local Radio Shack
store for help
If
you cannot eliminate the interfer-
ence, the FCC requires that you stop
using your scanner.
This device complies with Part 15 of
FCC Rules.
the following conditions: (1) This de-
vice must not cause harmful interfer-
ence, and (2) this device must accept
any interference received, including
interference that may cause unde-
sired operation.
Operation is subject to
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK). 0 USER·
SERVICEABLE PARTS INSIDE. REFER SERVICI G TO
QUALIFIED SERVICE PERSONNEl.
Warning: To reduce the risk of fire
or electric shock, do not expose
this appliance to rain or moisture.
Ir\
This symbol is intended to
ill
product that presents a risk of electric
shock. Do not open the product's
case.
~ you that important operating
are contained in this owner's manual.
alert you to the presence of
dangerous voltage inside the
~!
This symbol is intended to tell
and maintenance instructions
3
CONTENTS
PREPARATION 6
Connecting the Antenna 6
Connecting an Optional Antenna 6
Connecting Power 7
Connecting AC Power 7
Connecting DC Power 8
Resetting and Initializing the Scanner 8
Resetting the Scanner's Display 8
Initializing the Scanner 9
Connecting Headphones 9
Listening Safely 9
Traffic Safety 10
Connecting an External Speaker 10
UNDERSTANDING YOUR SCANNER 11
A Look at the Keyboard 11
A Look at the Display 12
UNDERSTANDING MEMORY 13
Channel-Storage Banks 13
Monitor Memories 13
•
OPERATION 14
Turning On the Scanner/Setting Volume and Squelch 14
Scanning the Channels 14
Turning Channel-Storage Banks On and Off 14
Storing Frequencies 15
Searching For and Temporarily Storing Active Frequencies 15
Limit Search 16
Direct Search 16
Moving a Frequency From a Monitor Memory to a Channel 17
Manually Selecting a Channel 17
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SPECIAL FEATURES 18
Changing the AM/FM Mode 18
Delay 18
Locking Out a Channel 19
Priority 19
Using the ATT Switch 20
A GENERAL GUIDE TO SCANNING 21
Guide to Frequencies 21
National Weather Frequencies 21
Ham Radio Frequencies 21
Birdies 22
Guide to the Action Bands 23
Typical Band Usage 23
Primary Usage 24
Specified Intervals 24
Band Allocation 25
Frequency Conversion 27
TROUBLESHOOTING 28
CARE AND MAINTENANCE 29
SPECIFICATIONS 30
5
PREPARATION
This scanner is primarily designed for
use in the home as a base station.
You can place it on a desk, shelf, or
table.
Your scanner's front feet fold up or
down. Adjust them to give you the
best view of the display.
CONNECTING THE
ANTENNA
To attach the supplied telescoping an-
tenna, simply screw it clockwise into
the hole on the scanner's top.
The scanner's sensitivity depends on
the antenna's length and various envi-
ronmental conditions. For the best re-
ception of the transmissions you want
to hear, adjust the antenna length.
Frequency Antenna Length
30-174 MHz
380 - 512 MHz extend 2 segments
806 - 960 MHz collapse fully
extend fully
(1 segment only)
Connecting an Optional
Antenna
The telescoping antenna is adequate
for strong local signals. But, for im-
proved reception, you can connect a
multi-band outdoor antenna (not sup-
plied) to the scanner. Your local Radio
Shack store sells a variety of anten-
nas. Choose the one that best meets
your needs.
When deciding on an outdoor base
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 (appli-
ances, other radios, and so on).
• The antenna should be vertical for
the best performance.
6
To connect an optional antenna, always
use 50-ohm coaxial cable, such as RG-
58 or RG-8. For lengths over 50 feet,
use RG-8 low-loss dielectric coaxial ca-
ble. If the coaxial cable's connector
does not fit in the
also need a PL-259-to-BNC antenna
plug adapter, such as Cat. No. 278-
120. Your local Radio Shack store car-
ries a wide variety of coaxial antenna
cable and connectors.
Follow the mounting instructions sup-
plied with the antenna. Then route the
antenna cable to the scanner, and
connect it to the
back of the scanner.
ANT
jack, you might
ANT
jack on the
CONNECTING POWER
You can power your scanner from
either of these sources:
• Standard AC power
• Vehicle battery power (using an op-
tional DC adapter)
The memory backup circuit begins to
function a few minutes after you con-
nect the scanner to AC or DC power.
If a power failure occurs or if the
power cord is disconnected, this cir-
cuit protects information in the scan-
ner's memory for about 1 hour.
Connecting AC Power
Plug the scanner's AC power cord
into a standard AC outlet.
Caution:
sharp edges or moving objects.
Warning: Use extreme caution
when you install or remove 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, contact with the antenna,
mast, cable, or guy wires can
cause electrocution and death.
Call the power company to re-
move the antenna. DO NOT at-
tempt to do so yourself.
Do not run the cable over
Caution:
the plug's blades are polarized and fit
only one way. If the plug does not fit
easily, turn it over and try again. Do
not force the plug into the AC outlet.
To prevent electric shock,
7
Connecting DC Power
You can power your scanner from
your vehicle's cigarette-lighter socket
using a DC adapter (Radio Shack
Cat. No. 270-1533).
Cautions:
• The vehicle must have a 12-volt,
negative ground electrical system.
• You must use a DC adapter that
supplies 12 volts and delivers at
least 500mA and its plug must cor-
rectly fit the
back of the scanner. The recom-
mended adapter meets these
specifications. using an adapter
that does not meet these specifica-
tions could seriously damage the
scanner or the adapter.
Insert the DC adapter's small barrel
plug into the
scanner's back. Then plug the other
end of the DC adapter into your vehi-
cle's cigarette-lighter socket.
DC 13.8 V
DC
13.8 V jack on the
jack on the
RESETTING AND
INITIALIZING THE
SCANNER
If the scanner's display locks up or
the scanner does not work properly
after you connect power, you might
have to reset the scanner's display or
initialize the scanner.
Resetting the Scanner's
Display
1. Turn off the scanner, then turn it on
again.
VOLUME
2. Insert a pointed object, such as a
straightened paper clip, into the
RESET
scanner.
hole on the back of the
DC 13.8 V Jack
8
If the scanner still does not work
properly, you might have to initialize
the scanner.
Initializing the Scanner
Caution:
formation you programmed in the
scanner's memory. Initialize the scan-
ner only when you are sure the scan-
ner is not working properly.
1. Turn off the scanner, then turn it on
again.
This procedure clears all in-
Insert the headphones' plug into the
{\ jack on the front of the scanner.
2. Press and hold down
insert a pointed object, such as a
straightened paper clip, into the
RESET
scanner.
3. Release
reappears, release
Note:
fore releasing
clear the memory.
hole on the back of the
RESET.
You must release
CLEAR
CLEAR
When the display
CLEAR.
in order to
RESET
and
be-
CONNECTING
HEADPHONES
For private listening, you can connect
an optional pair of headphones with a
1
/s-inch plug to the scanner. Use
monaural heapdhones, such as Cat.
No. 20-210.
Note:
matically disconnects the internal
speaker.
Plugging in headphones auto-
Listening Safely
To protect your hearing, follow these
guidelines when you use head-
phones.
• Set the volume to its lowest setting
before you begin listening. After
you put on the headphones, adjust
the volume to a comfortable listen-
ing level.
• Do not listen at extremely high-vol-
ume levels. Extended high-volume
listening can lead to permanent
hearing loss.
• Do not increase the volume once
you establish a comfortable listen-
ing level. Over time, your ears
adapt to the volume level, so a vol-
ume level that does not cause dis-
comfort might still damage your
hearing.
9
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Traffic Safety
Do not wear headphones while oper-
ating a motor vehicle or riding a bicy-
cle. This can create a traffic hazard
and is illegal in some areas.
Even though some headphones are
designed to let you hear some out-
side sounds when listening at normal
volume levels, they still present a traf-
fic hazard.
CONNECTING AN
EXTERNAL SPEAKER
You can connect an optional extemal
speaker with a1/s-inch plug to the
scanner. Use an 8-ohm external
speaker capable of handling over 5
watts of power, such as Cat. No. 21-
549.
Insert the speaker cable's plug into
the
EXT SPKR
the scanner.
jack on the back of
= .)
Note:
Plugging in an external speaker
automatically disconnects the scan-
ner's internal speaker.
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