Realistic PRO-2024 User manual

RADIO SHACK LIMITED WARRANTY
This product is warranted against defects for 1 year from date of purchase from Radio
Shack company-owned stores and authorized Radio Shack franchisees and dealers.
Within this period, we will repair it without charge for parts and labor Simply bring your
Radio Shack sales slip as proof of purchase date to any Radio Shack store. Warranty
does not cover transportation costs. Nor does it cover a product subjected to misuse or
accidental damage.
EXCEPT AS PROVIDED HEREIN, RADIO SHACK MAKES NO WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE Some states do not permit limitation or
exclusion of implied warranties; therefore, the aforesaid limitation(s) or exclusion(s) may
not apply to the purchaser
This warranty gives you specific legal rights and you may also have other rights which vary from state to state.
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RADIO SHACK
A Division of Tandy Corporation
Fort Worth, Texas 76102
6A9
Printed in Japan
OWNER’S MANUAL
PRO-2024
Desk-Top Programmable Scanner
Please read before using this equipment
Cat. No. 20-12S
T^KAi-iStJC

INTRODUCTION
Your new Realistic® PRO-2024 Desk¬
Top Programmable Scanner lets you
in on all the action! This scanner gives
you direct access to over 23,000 fre¬
quencies in exciting radio bands that
include the police department, fire de¬
partment, ambulance, aircraft, ham
radio, and transportation services.
You can select up to 60 channels for
your scanner to scan and change
your channel selection at any time.
The secret to your scanner’s ability to
scan so many channels so easily is its
custom-designed microprocessor —
a tiny, built-in computer. The micro¬
processor also gives you these spe¬
cial features:
Liquid Crystal Display - s hows the
channel and frequency you have se¬
lected plus several other indicators.
Two-Second Scan Delay— h elps to
prevent the loss of replies on a chan¬
nel while you are scanning.
Memory Backup - k eeps the channel
frequencies stored in your scanner’s
memory for up to one hour if your
scanner loses power.
Lock-Out Function - l ets the scanner
skip over a specified channel or group
of channels.
Six Channel-Storage Banks-allow
you to group your stored frequencies
so that calls are easier to identify.
Priority Channel - h elps keep you
from missing important calls on a pri¬
ority channel.
Direct Frequency Search - g ives you
direct access to every available fre¬
quency so that you can find interest¬
ing broadcasts.
Monitor Memories - a llow you to
store up to six additional channels
your scanner locates during a fre¬
quency search.
2
©1989 Tandy Corporation.
All Rights Reserved.
Realistic and Radio Shack are registered trademarks of Tandy Corporation.
Your scanner covers all of these
bands:
• 30-50 MHz (VHF Lo/Ham Radio 10
meter)
• 50-54 MHz (Ham Radio 6 meter)
• 118-136 MHz (Aircraft)
• 138-144 MHz (Government)
• 144-148 MHz (Ham Radio 2
Meter)
• 148-174 MHz (VHF Hi)
• 380-450 MHz (Ham Radio and Gov¬
ernment)
• 450-470 MHz (UHF Lo)
• 470-512 MHz (UHF TV)
For your permanent records, please
record your scanner’s serial number
in the space below. You can find the
serial number on your scanner’s back
panel.
Serial Number:
CAUTION:
TO REDUCE THE RISK OF ELECTRIC SHOCK.
00 NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE
PERSONNEL.
The lightning flash with the
arrowhead within the trian¬
gle is to alert the user to
dangerous voltage inside
this scanner that can cause
electrical shock. Do not
open the enclosure.
The exclamation point
within the triangle is to alert
the user to important oper¬
ating and maintenance in¬
structions inside this
owner’s manual.
WARNING: TO REDUCE THE
RISK OF ELECTRIC SHOCK, DO
NOT OPEN THE BACK COVER.
THERE ARE NQ USER-SERVICE¬
ABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SER¬
VICE PERSONNEL.
WARNING: TO PREVENT FIRE OR
SHOCK, DO NOT EXPOSE THIS
SCANNER TO RAIN OR MOIS¬
TURE.
3

CONTENTS
Preparation. 5
Connecting to AC Power. 5
Connecting the Antenna. 5
Connecting Headphones. 6
Hearing Contort and Your Health . 6
Understanding Your Scanner. 7
A Look at the Display. 7
A Look at the Keyboard. 8
Understanding Channel-Storage
Banks and Search Banks. 9
Operation . 10
Programming the Scanner. 10
Searching for Active Frequencies .. 11
Moving a Frequency from a Monitor
Memory to a Channel . 14
Using the Reset Button. 14
Setting the Volume and Squelch. 15
Scanning the Channels . 15
Setting the Scanning Speed. 15
Using the Delay Feature. 15
Locking Out Channels. 15
Turning the Banks On and Off . 16
Using the Priority Feature. 16
Manually Selecting a Channel. 16
A General Guide to Scanning. 17
Birdies . 17
Reception Notes. 17
A Guide to the Action Bands. 18
Typical Band Usage. 19
Troubleshooting. 21
If You Have Problems. 21
Care and Maintenance . 22
Specifications. 23
4
PREPARATION
CONNECTING TO AC
POWER
Connect the scanner’s AC power cord
to a standard AC outlet.
Caution: The power cord is equipped
with a polarized AC plug. (One blade
is wider than the other.) The plug fits
into an outlet in only one way. Do not
attempt to defeat this safety feature.
CONNECTING THE
ANTENNA
The supplied telescoping antenna can
receive local signals with your scan¬
ner. To install it, simply screw the an¬
tenna into the hole on the top of your
scanner.
Antenna length affects your scanner’s
sensitivity to different frequencies.
Refer to the table below to adjust the
antenna length for best reception at
the listed frequencies.
30-54MHZ extend fully
118-174MHz extend 2 segments
380-512 MHz
collapse fully
(one segment only)
For best reception, attach a multiband
outdoor antenna to your scanner.
Radio Shack® stores sell a complete
line of scanner antennas.
To install an outdoor antenna:
1. Select the highest possible location
for the antenna.
2. Mount the antenna following the
antenna's instructions.
3. Connect the antenna to the scan¬
ner using 50-ohm coaxial cable
(RG 58 or RG 8). For lengths over
50 feet, we recommend that you
use RG 8 low-loss, coaxial cable.
Warning: When installing or re¬
moving an outdoor antenna, use
extreme caution. If the antenna
starts to fall, let it go! It could con¬
tact overhead power lines. If the
antenna touches the power line,
contact with the antenna, mast,
cable, or guy wires can cause
electrocution and death! Call the
power company to remove the an¬
tenna. Do not attempt to do so
yourself.
You can also use multiband antenna
amplifiers to improve your reception.
Consult with your local Radio Shack
stores for the antenna systems.
5

CONNECTING
HEADPHONES
For private listening or in a noisy envi¬
ronment, you can connect head¬
phones (not supplied) to the Vs-inch
jack on the front of your scanner. We
recommend a mono headset, avail¬
able at your local Radio Shack store.
You automatically disconnect the in¬
ternal speaker when you plug in the
headphones.
HEARING CONFORT AND
YOUR HEALTH
Do not listen (especially using head¬
phones) at extremely high volume lev¬
els. Extended, high-volume listening
can lead to permanent hearing loss.
6
UNDERSTANDING YOUR SCANNER
A LOOK AT THE DISPLAY
AT SRCH SCAN MAN PGM PRI DLY L/OLfT
OO , OOOOOOn me !
U U ch U U U U U U hi mz so
The display has several abbreviated
indicators that show the scanner’s
current operating mode.
The above illustration shows your
scanner’s display with all of the indica¬
tors lighted. The following is a brief ex¬
planation of the indicators.
B —numbers below this indicator
show which memory banks are on in
the scan mode. See "Understanding
Channel-Storage Banks and Search
Banks.”
ch - indicates the current channel.
MHz- i ndicates the current channel
frequency.
Numbers 1-6-represent the six
memory banks and the six monitor
memories.
SCAN - a ppears when the scanner is
in the scan mode.
DLY-appears when the scanner is
on a channel that you have pro¬
grammed with the delay feature. See
“Using the Delay Feature.”
L/OUT-appears when you lock a
channel out of the scan mode. See
“Locking Out Channels."
MAN-appears when the scanner is
in the manual channel-selection
mode.
M-appears when the scanner is in
the monitor mode. See "Searching for
Active Frequencies" and “Moving a
Frequency from a Monitor Memory to
a Channel.”
PRI-appears when you turn on the
priority channel feature. See “Using
the Priority Feature.”
PGM-appears when the scanner is
ready for you to program. See “Pro¬
gramming the Scanner."
SRCH-appears along with L during
a limit search or d during a direct fre¬
quency search. The scanner also dis¬
plays A or T to show the direction of
the search. See “Searching for Active
Frequencies.”
7

CONNECTING
HEADPHONES
For private listening or in a noisy envi¬
ronment, you can connect head¬
phones (not supplied) to the Vs-inch
jack on the front of your scanner. We
recommend a mono headset, avail¬
able at your local Radio Shack store.
You automatically disconnect the in¬
ternal speaker when you plug in the
headphones.
HEARING CONFORT AND
YOUR HEALTH
Do not listen (especially using head¬
phones) at extremely high volume lev¬
els. Extended, high-volume listening
can lead to permanent hearing loss.
6
UNDERSTANDING YOUR SCANNER
A LOOK AT THE DISPLAY
AT SRCH SCAN MAN PGM PRI DLY L/OLfT
OO , OOOOOOn me !
U U ch U U U U U U hi mz so
The display has several abbreviated
indicators that show the scanner’s
current operating mode.
The above illustration shows your
scanner’s display with all of the indica¬
tors lighted. The following is a brief ex¬
planation of the indicators.
B —numbers below this indicator
show which memory banks are on in
the scan mode. See "Understanding
Channel-Storage Banks and Search
Banks.”
ch - indicates the current channel.
MHz- i ndicates the current channel
frequency.
Numbers 1-6-represent the six
memory banks and the six monitor
memories.
SCAN - a ppears when the scanner is
in the scan mode.
DLY-appears when the scanner is
on a channel that you have pro¬
grammed with the delay feature. See
“Using the Delay Feature.”
L/OUT- a ppears when you lock a
channel out of the scan mode. See
“Locking Out Channels."
MAN - a ppears when the scanner is
in the manual channel-selection
mode.
M- a ppears when the scanner is in
the monitor mode. See "Searching for
Active Frequencies" and “Moving a
Frequency from a Monitor Memory to
a Channel.”
PRI - a ppears when you turn on the
priority channel feature. See “Using
the Priority Feature.”
PGM - a ppears when the scanner is
ready for you to program. See “Pro¬
gramming the Scanner."
SRCH - a ppears along with L during
a limit search or d during a direct fre¬
quency search. The scanner also dis¬
plays A or T to show the direction of
the search. See “Searching for Active
Frequencies.”
7

OPERATION
PROGRAMMING THE
SCANNER
A good reference for active frequen¬
cies is Radio Shack's Police Call Di¬
rectory Including Fire and Emergency
Services.
We update this directory yearly, so be
sure to get a current copy. Also, refer
to Reception Notes" and "Searching
for Active Frequencies" in this manual.
1 Turn the VOLUME control clockwise to
turn on the scanner.
2. Press [PROGRAM], Enter the channel
number that you want to program, and
then press [PROGRAM] again. PGM
appears on the display and shows that
your scanner is in the programming
mode.
CZO cc col CD CD CE)|
cc CD a! CD CD GDi
co i—I I—ll
CD CD CDJ
i—11—>lr-p ! .
CD.
3. Enter a frequency.
C 1 CO (-11
1—1 1—11—1[
t- 1 l- 1 col
CD CD CZDj
CD CD CD)]
CD CO CD!
CD CO
colj-3 caJ co
4 Press [ENTER] to store the frequency.
If you made a mistake in Step 3, Error
appears on the display. Press [CLEAR]
and proceed again from Step 3.
CO CD CD
CD CD CO
CD CD CID
t ’ 1 L lJ l- ■ .1
5 To set your scanner to pause after each
transmission before scanning to the
next channel, press [DELAY] until DLY
appears on the display. See "Using the
Delay Feature." i
CO CO CCD
CD CO CO
CO CO CD
CD CO CO
CD CJp|
CO C-)l(-1
CD CO CO
CD CO CD
6 .
To program more channels, repeat
Steps 2-4. If you want to program the
next channel in sequence, simply press
[PROGRAM] and repeat Steps 3-4.
CD CZO CD
CD CD CD
CZD CD CD
I CZO Cl fr-| f—l
10
SEARCHING FOR ACTIVE FREQUENCIES
Use the following two procedures to search for a transmission. These procedures
are helpful if you do not have a reference to frequencies in your area. Also see
“Guide to the Action Bands."
Limited Frequency Search
The limited search procedure allows you to search within a specific range of fre¬
quencies. Your scanner displays L and SRCFI during a limited frequency search.
Press [PROGRAM],
pcm a
iC , 3 n n ri n n a
1 J ch JUU.UUUuMNr
2.
Press [LIMIT],
PGM
i n i rinnn,-,
LU JU.UUUu MH/
3. Enter the lower limit of the frequency
range.
PGM
i n nju
L U III MHz
4.
Press [ENTER], and then press [LIMIT],
PGM
no c n'nnn„
LU 3 ILUUULImhz
5.
Enter the upper limit of the frequency
range.
PGM
inj mr
LU 1 1 U MHz
11

6 - 'Press [ENTER],
PGM
1 111
ii ir n nn
U1 1 IUUUUJmhz
7.
Press [T] to search from the upper limit
down to the lower limit of the frequency
range. Or, press [A] to search upward
starting from the lower limit.
A SRCH v m
i ij ij n n n A
I I I.UUU UMHz
When the scanner stops on a transmis¬
sion, press [MONITOR] to store the fre¬
quency in the current monitor memory.
The monitor memory number stops
flashing.
▲ SRCH
i ij u n n n ri
( I I U U U U MHz
To continue the search, press [ ▼ ] or
A SRCH
ii ir
i i j
mn n A
I U U U MHz
Notes:
• Press [SPEED] to speed up or slow
down the search.
• Press [DELAY] until DLY appears,
to make the scanner pause 2 sec¬
onds after a transmission before
proceeding to the next frequency.
See "Using the Delay Feature."
• You can store six different frequen¬
cies in monitor memory, if you at¬
tempt to store more than six, the
new frequency replaces one of the
old frequencies.
12
Direct Frequency Search
When you are in the program or man¬
ual listening mode, you can search up
or down from the current frequency.
Your scanner shows d on the display
during a direct frequency search.
Select a programmed channel by
pressing [MANUAL], the channel num¬
ber, and then either [MANUAL] or
[PROGRAM],
MAN a
i in .
i u ch
1 1 n n n n a
lUUULIu*
2. Press [A] to search through higher fre¬
quencies or ▼ 1 search through
lower frequencies.
▲ SRCH
1
1 1 n n n n._.
IJ
lUUUUU MHz
3.
When the scanner stops on a fre¬
quency, you can store it in a monitor
memory by pressing [MONITOR]. The
monitor memory number stops flash¬
ing.
4 To continue the search, press [A] or
A
I
o
SRCH
I I
I
I n c n
I U —f U MHz
"va 1 *
A
13

MOVING A FREQUENCY FROM A MONITOR MEMORY TO A
CHANNEL
In the monitor mode, the monitor
memory number shows the current
monitor memory. To listen to monitor
memories, press [MANUAL], and then
press [MONITOR] to put the scanner
in the monitor mode.
To listen to a monitor memory, simply,
press [MONITOR] until your desired
monitor memory appears.
To move a frequency from a monitor
memory to a channel:
1 .
Press [MANUAL], the channel number,
and then [PROGRAM],
PGM 0
ijn . ij n n n n a
iuch IU.UUU UM
2 .
Repeatedly press [MONITOR] until
your desired frequency appears.
PGM El
i n n r n 0
J uu l u u V
3.
Press [ENTER], The frequency is
stored in the specified channel.
pgm a
U n , j n n r n a
i u ch j uu Duit m hz
4.
If you want to return to a limited fre¬
quency search after this procedure,
press [LIMIT], followed by either [ ▲ ] or
ilL_
A SRCH > E)^
i ii ir ir n A
L 1 IU. IJUumhz
USING THE RESET BUTTON
The scanner’s display might lock up
when you first connect power to it or if
power fails for more than 1 hour. If the
display locks up, use a pointed object
such as a paper clip to press RESET
(on the back panel). This clears all
programmed information from the
scanner. Use this procedure only
when you are sure your scanner is not
working properly.
14
SETTING THE VOLUME AND
SQUELCH
Use the SQUELCH control to de¬
crease the scanner’s sensitivity to
weak signals and enable the scanner
to receive only the strongest transmis¬
sions.
1. Turn the SQUELCH and VOLUME
controls fully counterclockwise.
2 . Turn the VOLUME control clock¬
wise until you hear a hissing sound.
3. Slowly turn the SQUELCH control
clockwise until the hissing stops.
SCANNING THE CHANNELS
*
To begin scanning the channels,
press [SCAN], Your scanner scans
through all the channels (except the
ones you have locked out) that are
contained in the activated banks. Be
sure to read the following sections to
get the full benefit from the special
features of your scanner.
SETTING THE SCANNING
SPEED
Your scanner has two different scan¬
ning speeds-8 channels per second
and 16 channels per second. To
switch between the two scanning
speeds, press [SPEED] during scan¬
ning.
USING THE DELAY FEATURE
Many agencies use a two-way radio
system that can have a period of 2 or
more seconds between a query and a
reply. To keep from missing a reply,
program a delay on the channels you
identify as operating this way.
To program a delay, select the chan¬
nel and press [DELAY] so that DLY
appears on the display. This makes
your scanner pause for 2 seconds
after the completion of each transmis¬
sion on that channel before it resumes
scanning.
For immediate scanning, select the
channel and be sure that DLY is not
on the display. If DLY appears on the
display, press [DELAY] to turn it off
for that channel.
LOCKING OUT CHANNELS
You can make your scanner scan
more efficiently by locking out chan¬
nels that you have not programmed.
Manually select the channel and press
[LOCK OUT] so that L/OUT appears
on the display. This is also handy for
locking out channels that have a con¬
tinuous transmission, such as a
weather channel. You can still man¬
ually select locked-out channels for
listening.
To disable the lock-out function, man¬
ually select the channel and press
[LOCK OUT] so that L/OUT disap¬
pears from the display.
Note: You can lock out all but one
channel in each bank.
15

TURNING BANKS ON AND
OFF
To turn banks on and off, you must be
in the scan mode.
Press [SCAN], The bank numbers ap¬
pear on the display and your scanner
begins to scan.
To turn off a bank, press the number
key that corresponds to that bank.
The bank number disappears.
The scanner does not scan any of the
channels within that bank, but you
can still manually select any channel
in that bank.
Note: You can turn all but one bank
off.
To turn on a bank, press the number
key that corresponds to that bank.
The bank number appears on the dis¬
play.
The scanner scans all the channels
within that bank (except the ones that
you have locked out.)
USING THE PRIORITY
FEATURE
Channel 1 is designated as your
scanner’s priority channel. You can
turn on the priority feature so that you
do not miss transmissions on Channel
1 , even if you are monitoring another
channel.
Press [PRIORITY] so that PRI appears
on the display. Now your scanner
checks Channel 1 every 2 seconds,
and stays on the channel if there is
any activity.
MANUALLY SELECTING A
CHANNEL
You can continuously monitor a single
channel without scanning. This is use¬
ful if you hear an emergency broad¬
cast on a channel and do not want to
miss any of the details-even though
there might be periods of silence-or,
if you want to monitor a channel that
you have locked out.
To select a channel to monitor, press
[MANUAL], enter the channel number,
and then press [MANUAL] again. Or,
if your scanner is scanning and has
stopped at the desired channel, sim¬
ply press [MANUAL] one time. Press¬
ing [MANUAL] additional times
causes your scanner to step through
the channels one at a time.
16
A GENERAL GUIDE TO SCANNING
BIRDIES
Birdies are the products of internally
generated signals that make some fre¬
quencies difficult or impossible to re¬
ceive. If you program one of these fre¬
quencies, you hear only noise on that
frequency.
If the noise is not severe, you might
be able to cut out the birdie by turning
the SQUELCH control clockwise. The
most common birdies to watch for are
listed below.
Birdie Frequencies
Low Band
(MHz)
High Band
(MHz)
38.4000
47.9200
51.2000
138.0000
140.8000
149.4000
149.7550
153.6000
162.2000
166.4000
Air Band
(MHz)
UHF Band
(MHz)
120.0000
120.2000
122.5500
123.1000
128.0000
128.3750
132.2000
510.6500
512.0000
RECEPTION NOTES
Reception of the frequencies covered
by your scanner is mainly “line of
sight.” That means you usually cannot
hear stations at your listening location
that extend beyond the horizon.
During the summer months, you
might be able to hear stations in the
30-50 MHz range located several hun¬
dred or even thousands of miles
away. This is caused by summer at¬
mospheric conditions. This type of re¬
ception is unpredictable but often very
interesting!
One very useful service is the National
Weather Service’s continuous weather
broadcasts. These broadcasts contain
weather forecasts and data for the
area around the station, plus bulletins
on any threatening weather condi¬
tions. These stations use three fre¬
quencies: 162.40, 162.475, or 162.55
MHz. In most areas of the country,
you can receive one of these frequen¬
cies.
17

GUIDE TO THE ACTION BANDS
With a little investigation, you can find
the active frequencies in your commu¬
nity to monitor exciting events. We
can give you some general pointers
on finding these frequencies and you
can take it from there. Please use cau¬
tion and common sense when you
hear an emergency call. Never go to
the scene of an emergency. It could
be very dangerous.
Find out if there is a local club that
monitors your community’s frequen¬
cies. Perhaps a local electronics re¬
pair shop that works on equipment
similar to your scanner can give you
channel frequencies used by local
radio services. A volunteer police de¬
partment or fire department employee
can also be a good source for this in¬
formation.
As a general rule on VHF, most activ¬
ity concentrates between 153.785 and
155.98 MHz and then again from
153.73 to 159.46 MHz. Here you find
local government, police, fire, and
most other emergency services. If you
are near a railroad or major railroad
tracks, look between 160.0MHz to
161,9MHz for rail service broadcasts.
In some larger cities, there has been a
move to the UHF bands for emer¬
gency services. Here, most of the ac¬
tivity is between 453.025 and 453.95
MHz and again between 456.025 and
459.95 MHz.
In the UHF band, mobile and control
units associated with base and re¬
peater units operate between the fre¬
quencies of 456.025 and 459.95 and
again between 465.025 and 469.975.
The repeater units operate 5 MHz
lower than the base units (that is,
451.025-454.95 and 460.025-464.975
MHz). This means that if you find an
active frequency inside one of these
spreads, you can look 5 MHz lower
(or higher, as the case may be) to find
that radio service.
Frequencies in different bands are ac¬
cessible only at specific intervals.
However, the frequencies that you
can store into your scanner’s memory
are in 5, 12.5, or 25 kHz steps. Your
scanner automatically rounds the en¬
tered frequency down to the nearest
valid frequency. For example, if you
try to enter a frequency of 151.473,
your scanner accepts it as 151.470.
18
TYPICAL BAND USAGE
The following is a brief listing of the services typical of the bands received by your
scanner. This listing can help you decide which ranges you would like to scan.
Abbreviations:
BA.Remote Broadcast (Radio & TV)
CA.General Mobile (Radio)
CAP.Civil Air Patrol
IB.Business
IF.Forest Products
IM.Motion Picture Industry
IP.Petroleum Industry
IS.Special Industrial (Construction,farming,etc.)
IT.Telephone Maintenance
IW.Power and Water Utilities
IX.Manufacturers
IY.Relay Press (newspaper reporters)
LA.Automotive Emergency (tow trucks)
U.Motor Carrier, Trucks
LR.Railroad
LU.Motor Carrier, Buses
LX.Taxi
MC.Maritime Limited Coast (private stations)
MG.Maritime Government (Coast Guard)
MP.Maritime Public Coast (marine telephone)
MS.Maritime Shipboard
PF.Fire
PH.Highway Maintenance
PL.Local Government
PM.Medical Services
PO.Forestry Conservation
PP.Police
PS.Special Emergency
FLA.Mobile Telephone (aircraft)
RC.Mobile Telephone (radio common carrier)
RT.Mobile Telephone (landline companies)
BIFC.Boise Interagency Fire Cache
Government Agencies:
UAF...Air Force
UAR.Army
UBW.. International Boundary & Water Commision
UCE.Environmental Research Laboratories
UCF.Maritime Fisheries Service
UCG.Coast Guard
UCM.Maritime Administration
UCO.Ocean Survey
UCP.National Capitol Police
UCW.National Weather Service
UCX.Department of Commerce
UEP.Environmental Protection Agency
UER.Department of Energy
UFA.Federal Aviation Administration
UFC.Federal Communecations Commision
UGC.Soil Conservation Service
UGF.Forest Service
UGS.General Services Administration
UGX.Department of Agriculture
UHW.Dept, of Health and Human Services
UIB.Bonneville Power Administration
UIF.Bureau of Sport Fisheries and Wildlife
UIG.Geological Survey
Ull.Bureau of Indian Affairs
UIL.Bureau of Land Management
UIM.Bureau of Mines
UIP.National Park Service
UIR.Bureau of Reclamation
UIS.Southwestern Power Administration
UIX.Department of the Interior
UNO.United Nations
UNS.NASA
UPO.Postal Service
USA.Federal Govt. Misc.
USD.State Department
USN.Navy
UTC.Bureau of Customs
UTM.Bureau of the Mint
UTR.Department of Transportation
UTV.Tennessee Valley Authority
UTX.Treasury Department
UVA.Veterans Administration
UXX.Classifies
19

Band Usage:
30-50 MHz:
30.00-30.55.USA,UAR,USN,UCG,UAF
30.5&-31.98.IS.IP.IB.LU.PO
32.00-32.99.USA,UAR,USN,UCG,UGX,UAF,UIR
33.02-33.98.PS.PH.IS.IB.IP.PF
34.01-34.99.UCG, UER. USAUAR. UAF.
.USN.UGX.UIP.UIF
35.02-35.98.IB.IT.RC,RT.IS.PS
36.01-36.99.UIX,UER,USA,UAR,USN,UTR,
.UCO.IP,UHW.UGF,UGX.UAF
37.02-37.98.PP.PL,IW.PH.PS
38.27-38.99.USAUSN,UGX,UGF,UAR,
.UAF,U1X,UTV,UVA
39 02-39.98 PP PL
40.01-41.99.UIA,UAR,UIP,UAF,USA,UVA,UER,
.USN,UIF,UIR,UTV,UIM,IP,UIX,UEP,
.UCG.UIL.BIFC.UHW.UTX
42.02-42.94.PP
42.96-43.68.18,IS,IT,RC.RT.PS
43.70-44.60.LU,U
44.62-46.58.PP,PO, PL, PH.PF.PS
46.61-46.99.USA,UIL,BIFC,UAF,UAR,UGX,UGF
47.02-49.58.PH,PS,IS,IW,IF,IP
49.61 49.99.UIL.UAR.UGC,UAF,LIAR,
.UGX,UGF,USA
150-173 MHz
150.775-151.985.PM, LA, IF, PH, PO, IS, IB
152.0075-152.84.PM.RC.LX.IFJB.RT
152.87 153.725.IM,IS,IP,IX,IF,IW
153.74-156.24.PL,PF,IS,IB,PP,PM,PH
156.255-157.45.IP,MC,MS,MG,MP,PM
157.47-158.70.LA,LX,IF,IS,IB,RT,IW,IP,IX,IT,RC
158.73-159 48.PP,PL,PH,PO,IP
159.495-161.565.LR.U
161.58-162.00.IP,MC,BA,MP
162.025-173.9875.Misc. Govt. Agencies
406-512 MHz
406.125-419.975.Misc. Govt. Agencies
450.05-450.925.BA
451.00-451.70.IW,IF,IP,IT,IX
451.725-452.175.IS,IF,IP,LX
452.20 452.95.LX.U.LR.LA
452 975 453 975.IY.PL.PH.PF.PO.PP
454 00 457.6.IP.RC.RT.RA.BAIB
458.025-467.925. PM,PP,IB,IX,IF,IP,IT,IW,GM
482.00 508.9875.Mixed Public Safety
These frequencies are subject to
change and might vary some from
area to area. For a more complete list¬
ing, refer to the Police Call Radio
Guide Including Fire and Emergency
Sen/ices at your local Radio Shack.
You might discover one of your regu¬
lar stations on a frequency that is not
listed. This could be what is known as
an image. For example, if you sud¬
denly find a station on 453.4750 you
also hear on 474.8750, do a little math
to see if it is an image. Take the inter¬
mediate frequency of 10.7 MHz and
double it. Then subtract it from the
“new" frequency. If the answer is the
regular frequency, you have tuned to
an image. Occasionally, you might get
interference on a weak or distant
channel from a strong broadcast 21.4
MHz (2 x 10.7 MHz) below the tuned
frequency. This is rare, and the image
signal is usually cleared whenever a
broadcast on the actual frequency is
in progress.
20
TROUBLESHOOTING
IF YOU HAVE PROBLEMS...
Here are some suggestions which might help.
PROBLEM POSSIBLE CAUSE
REMEDY
Scanner is totally
inoperative.
No power.
Check to see that
you plugged the
scanner into a working
AC outlet.
Scanner is on but
will not scan.
The SQUELCH control
is not correctly adjusted.
Adjust the SQUELCH
control clockwise.
In the scan mode
the scanner locks
on frequencies that
have an unclear
transmission.
"Birdies"
Avoid programming
frequencies listed
on under "Birdies", or
listen to them manually.
The keys are
inoperative or the
display is
random.
The CPU is locked up.
Using a paper clip,
press the reset button
on the scanner’s back
panel.
If none of these suggested remedies solves the problem, return your scanner to
your local Radio Shack store for assistance.
21

CARE AND MAINTENANCE
Your PRO-2024 is an example of superior design and craftsmanship. The following
suggestions will help you care for the PRO-2024 so that you can enjoy it for years.
Keep the PRO-2024 dry. If it does get wet, wipe it dry im¬
mediately. Liquids can contain minerals that can corrode
the electronic circuits.
Handle the PRO-2024 gently and carefully. Dropping it can
damage circuit boards and cases and can cause the prod¬
uct to work inproperly.
Use and store the PRO-2024 only on normal temperature
environments. Extreme temperatures can shorten the life of
electronic devices, damage batteries and distort or melt
plastic parts.
Keep the PRO-2024 away from dust and dirt, which can
cause premature wear of parts.
Wipe the PRO-2024 with a dampened cloth occasionally to
keep it looking new. Do not use harsh chemicals, cleaning
solvents, or strong detergents to clean the PRO-2024.
Modifying or tampering with the PRO-2024’s internal components can cause a
malfunction and might invalidate the PRO-2024’s warranty. If your PRO-2024 is not
performing as it should, take it to your local Radio Shack store. Our personnel can
assist you and arrange for service if needed.
22
SPECIFICATIONS
Frequency Coverage:
VHF-Lo . 30-50 MHz (in 5 kHz steps)
Ham. 50-54 MHz (in 5 kHz steps)
Aircraft . 118-136 MHz (in 25 kHz steps)
Government . 138-144 MHz (in 5 kHz steps)
Ham. 144-148 MHz (in 5 kHz steps)
VHF-Hi. 148-174 MHz (in 5 kHz steps)
Ham/Government . 380-450 MHz (in 12.5 kHz steps)
UHF-Lo. 450-470 MHz (in 12.5 kHz steps)
UHF-TV. 470-512 MHz (in 12.5 kHz steps)
Channels of Operation:. Any 60 channels in any band combinations
(10 channels x 6 banks) and 6 monitor channels.
Signal-to-Noise Ratio:
30-54 MHz. 45 dB at 40 MHz
118-136 MHz . 40 dB at 126 MHz
138-174 MHz . 40 dB at 156 MHz
380-512 MHz . 35 dB at 450 MHz
Sensitivity:
30-54 MHz .0.5 /<V
118-136 MHz.2.0 //V
138-174 MHz.1.0//V
380-512 MHz.1.0
Spurious Rejection:
30-54 MHz .50 dB at 40 MHz
118-136 MHz.50 dB at 126 MHz
138-174 MHz.50 dB at 156 MHz
380-512 MHz.Not Specified
Selectivity:
±9 kHz.-6 dB
± 15 kHz.-50 dB
IF Rejection:
10.7 MHz.70 dB at 156 MHz
23

16 Channels/Sec.
. 8 Channels/Sec.
Scanning Rate:
Fast.
Slow.
Search Rate:
Fast.
Slow.
Priority Sampling.
Delay Time .
IF Frequencies .
Filters.
Squelch Sensitivity:
Threshold .
Tight:
VHF Lo, Hi, UHF
Aircraft.
Antenna Impedence ....
Audio Power.
Built-in Speaker.
Power Requirement ....
Dimensions .
Weight .
.16 Steps/Sec.
.8 Steps/Sec.
.2 Seconds
.2 Seconds
. 10.7 MHz and 455 kHz
1 Crystal Filter, 1 Ceramic Filter
.Less than 1.0/<V
.(S + N)/N 25 dB
.(S + N)/N 20 dB
. 50 Ohms
. 1.2 W Nominal
3" (77 mm) 8 Ohm, Dynamic Type
. AC 120 Volts, 60 Hz, 13 Watts
2 5/16* X 9 13/16" X 7 1/16" HWD
(60 mm x 250 mm x 180 mm)
.3 Lbs. 5 Oz. (1500 g)
24
FREQUENCY LOG
Frequency
Location and Use
25

FREQUENCY LOG
Frequency
Location and Use
26
FREQUENCY LOG
Frequency
Location and Use
27