Radio Shack RadioShack Car Stereo System PRO 90 User Manual

Cat. No. 20-520  
Owner’s Manual  
PRO-90 300-Channel  
TrunkTracker Scanner  
Please read before using this equipment.  
Ten Channel-Storage Banks — let you store 30 chan-  
nels in each bank to group channels so you can more  
easily identify calls.  
Five Scan Lists — let you store up to 50 IDs in each  
tracking bank (up to a total of 500).  
Two-Second Scan Delay — delays scanning for about  
2 seconds before moving to another channel, so you can  
hear more replies that are made on the same channel.  
Lock-Out Function — lets you set your scanner to skip  
over specified channels or frequencies when scanning  
or searching, and skip over IDs when tracking trunked  
systems.  
Priority Channels — lets you program one channel in  
each bank (10 in all) and then have the scanner check it  
every 2 seconds so you don't miss transmissions on  
those channels.  
Five Service-Search Banks — lets you search preset  
frequencies in separate police, fire/emergency, aircraft,  
marine, and weather banks, to make it easy to locate  
specific types of calls.  
HyperSearch and HyperScan — lets you set the  
scanner to search at up to 300 steps per second and  
scan at up to 100 frequencies per second in frequency  
bands with 5 kHz steps, to help you quickly find interest-  
ing broadcasts. The normal search speed is 100 steps  
per second.  
Data Signal Skip — lets you set the scanner to skip  
non-modulated or data signals during searches. This lets  
the scanner avoid non-voice signals, making a search  
faster.  
Key Lock — lets you lock the scanner's keys to help  
prevent accidental changes to the scanner's program-  
ming.  
Manual Access — lets you directly access any channel.  
Liquid-Crystal Display — makes it easy to view and  
change programming information.  
Display Backlight — makes the scanner easy to read in  
low-light situations.  
3
Flexible Antenna with BNC Connector — provides ex-  
cellent reception and is designed to help prevent anten-  
na breakage. Or, you can connect an external antenna.  
Memory Backup — keeps the frequencies stored in  
memory for an extended time.  
Three Power Options — let you power the scanner us-  
ing the built-in rechargeable battery pack, external AC  
power using the supplied AC adapter/charger, or DC  
power using an optional DC cigarette-lighter power ca-  
ble.  
Key Confirmation Tones — the scanner sounds a tone  
when you perform an operation correctly, and an error  
tone if you make an error.  
Battery Low Alert — warns you when battery power  
gets low.  
Battery Save — saves battery power when the scanner  
does not detect any transmissions for more than 1  
minute when a channel is manually selected.  
Your scanner can receive these bands:  
Frequency Range Step  
Transmission  
29–29.7 MHz  
5 kHz  
10-Meter Ham  
Band  
29.7–50 MHz  
50–54 MHz  
5 kHz  
5 kHz  
VHF Lo  
6-Meter Ham Band  
Aircraft  
108–136.9875 MHz 12.5 kHz  
137–144 MHz  
5 kHz  
Military Land  
Mobile  
144–148 MHz  
148–174 MHz  
406–420 MHz  
5 kHz  
2-Meter Ham Band  
VHF Hi  
5 kHz  
12.5 kHz  
Federal Govern-  
ment  
420–450 MHz  
450–470 MHz  
12.5 kHz  
12.5 kHz  
70-cm Ham Band  
UHF Standard  
Band  
470–512 MHz  
806–956 MHz  
12.5 kHz  
12.5 kHz  
UHF “T” Band  
Public Service  
“800” Band, except  
cellular band  
4
We recommend you record your scanner’s serial num-  
ber here. The number is on the bottom panel.  
Serial Number: ___________________________  
FCC NOTICE  
Your scanner might cause radio or TV interference even  
when it is operating properly. To determine whether your  
scanner is causing the interference, turn off your scanner.  
If the interference goes away, your scanner is causing it.  
Try the following methods to eliminate the interference:  
• Move your scanner away from the receiver  
• Connect your scanner to an outlet that is on a differ-  
ent electrical circuit from the receiver  
• Contact your local RadioShack store for help  
Note:  
Mobile use of this scanner is unlawful or requires  
a permit in some areas. Check the laws in your area.  
SCANNING LEGALLY  
Your scanner covers frequencies used by many different  
groups including police and fire departments, ambulance  
services, government agencies, private companies, am-  
ateur radio services, military operations, pager services,  
and wireline (telephone and telegraph) service providers.  
It is legal to listen to almost every transmission your scan-  
ner can receive. However, there are some transmissions  
you should never intentionally listen to. These include:  
Telephone conversations (either cellular, cordless,  
or other private means of telephone signal transmis-  
sion)  
• Pager transmissions  
• Any scrambled or encrypted transmissions  
According to the Electronic Communications Privacy Act  
(ECPA), you are subject to fines and possible imprison-  
ment for intentionally listening to, using, or divulging the  
contents of such a transmission unless you have the  
consent of a party to the conversation (unless such ac-  
tivity is otherwise illegal). We encourage responsible, le-  
gal scanner use.  
5
CONTENTS  
Preparation ................................................................ 8  
Power Sources ..................................................... 8  
Using the Rechargeable Battery Pack .......... 8  
Using Standard AC Power ............................ 9  
Using Vehicle Battery Power ....................... 10  
Connecting the Antenna ..................................... 11  
Connecting an Optional Antenna ................ 12  
Connecting an Earphone/Headphones .............. 13  
Listening Safely .......................................... 13  
Traffic Safety ............................................... 13  
Connecting an Extension Speaker ..................... 14  
Attaching the Belt Clip ........................................ 14  
Understanding Your Scanner ................................. 15  
A Look at the Keypad ......................................... 15  
A Look at the Display ......................................... 17  
Understanding Banks ......................................... 19  
Channel Storage Banks .............................. 19  
Service Banks ............................................. 19  
Understanding Trunking ..................................... 19  
Operation ................................................................. 20  
Turning On the Scanner and Setting Squelch .... 20  
Storing Known Frequencies into Channels ........ 21  
Limit Search ....................................................... 22  
Scanning Service Banks .................................... 23  
Scanning the Stored Channels .......................... 25  
Manually Selecting a Channel ............................ 25  
Deleting a Stored Frequency ............................. 25  
Special Features ...................................................... 26  
Delay .................................................................. 26  
Turning Channel-Storage Banks On and Off ..... 27  
Locking Out Channels and Frequencies ............ 27  
Locking Out Channels ................................ 27  
Locking Out Frequencies ............................ 28  
Priority ................................................................ 28  
Using the Keylock .............................................. 30  
Using the Display Backlight ................................ 30  
Changing Search Speeds .................................. 30  
Battery Save ...................................................... 31  
Skipping Data Signals ........................................ 31  
6
Trunk Tracking ......................................................... 32  
Types of Trunked Systems ................................. 32  
Setting the Scanner to the Trunk Tracking Mode 33  
Setting Squelch for the Trunk Tracking Mode .... 34  
Programming Trunked Frequencies ................... 34  
Scanning a Trunked Bank .................................. 36  
Monitoring an Active ID ............................... 37  
Locking Out IDs ........................................... 38  
Unlocking a Single ID .................................. 38  
Unlocking All IDs ......................................... 38  
Using Trunk Tracking Scan Delay ............... 39  
Monitoring IDs ............................................. 39  
Channel Activity Indicators ................................. 40  
Scan Lists ........................................................... 41  
Manually Storing IDs into Scan Lists ........... 41  
Storing IDs Into Scan Lists  
While Searching .......................................... 42  
Automatically Storing an ID  
in a Scan List Location ................................ 42  
Deleting a Stored ID .................................... 43  
Scanning the Scan Lists ..................................... 43  
Scanning Type I and Hybrid Trunked Systems ... 44  
Selecting a Preset Fleet Map ..................... 48  
Programming a Fleet Map .......................... 49  
Programming a Hybrid System .................. 50  
A General Guide to Scanning ................................. 51  
Guide to Frequencies ......................................... 51  
National Weather Frequencies .................... 51  
Canadian Weather Frequencies .................. 51  
Birdie Frequencies ...................................... 51  
Guide to the Action Bands ................................. 52  
Typical Band Usage .................................... 52  
Primary Usage ............................................. 52  
Band Allocation ................................................. 53  
Frequency Conversion ...................................... 57  
Troubleshooting ....................................................... 58  
Care and Maintenance ............................................. 61  
Specifications .......................................................... 62  
7
PREPARATION  
POWER SOURCES  
You can power your scanner from any of three sources:  
• Built-in rechargeable battery pack  
• Standard AC power using the supplied AC adapter/  
charger  
• Vehicle battery power using an optional DC ciga-  
rette-lighter power cable  
Using the Rechargeable Battery Pack  
You must charge your scanner’s built-in rechargeable  
battery pack before you can use it to power the scanner.  
Your scanner has a built-in charging circuit that lets you  
charge the rechargeable battery pack while it is in the  
scanner.  
To charge the battery pack, simply connect the supplied  
AC adapter/charger or an optional DC cigarette-lighter  
power cable to the scanner’s EXT. PWR jack. See “Using  
Standard AC Power” on Page 9 or “Using Vehicle Bat-  
tery Power” on Page 10.  
It takes about 14–16 hours to recharge a battery pack  
that is fully discharged. (You can operate the scanner  
while recharging the battery pack, but charging takes  
longer).  
Notes:  
• The scanner automatically stops charging the bat-  
tery pack when it is fully charged, even if the sup-  
plied AC adapter/charger or a DC cigarette-lighter  
power cable is still connected to the scanner.  
• A rechargeable battery pack lasts longer and deliv-  
ers more power if you occasionally let it fully dis-  
charge. To do this, simply use the scanner until the  
low battery indicator appears. Then fully charge the  
battery pack.  
If the battery pack doesn’t power the scanner even after  
you charge it, you must replace it. You can order a re-  
placement battery pack from your local RadioShack  
store.  
8
1. Press down on the battery compartment cover and  
slide the cover in the direction of the arrow to  
remove it.  
2. Disconnect the battery pack’s connector from the  
scanner’s connector. Then remove the battery pack  
from the battery compartment.  
3. Attach the new battery pack's connector to the bat-  
tery socket inside the battery compartment. Then  
put the battery pack into the compartment.  
4. Replace the cover.  
When the scanner’s battery gets low,  
blinks and  
the scanner beeps about every 15 seconds.  
Important: At the end of a rechargeable battery pack's  
useful life, it must be recycled or disposed of properly.  
Contact your local, county, or state hazardous waste  
management authorities for information on recycling or  
disposal programs in your area. Some options that might  
be available are: municipal curb-side collection, drop-off  
boxes at retailers such as your local RadioShack store,  
recycling collection centers, and mailback programs.  
Using Standard AC Power  
To power the scanner from AC power, use the supplied  
AC adapter/charger. Plug the adapter/charger's barrel  
plug into the scanner's EXT. PWR jack. Then plug the AC  
adapter/charger's power module into a standard AC out-  
let.  
9
EXT. PWR Jack  
Warning: Do not use the AC adapter/charger's polarized  
plug with an extension cord, receptacle, or other outlet  
unless the blades can be fully inserted to prevent blade  
exposure.  
Caution: Use only the supplied AC adapter/charger. It is  
specifically designed for this scanner.  
Using Vehicle Battery Power  
To power the scanner from your vehicle's cigarette-light-  
er socket, you need a DC cigarette-lighter power cable,  
such as Cat. No. 270-031.  
Cautions:  
• The DC cigarette-lighter power cable must be capa-  
ble of delivering 12 volts, its center tip must be set to  
positive, and its barrel plug must correctly fit the  
scanner's EXT. PWR jack. The recommended power  
cable meets these specifications. Using a power  
cable that does not meet these specifications could  
damage the scanner or the power cable.  
To protect your vehicle's electrical system, always  
plug the power cable into the scanner before you  
plug it into your vehicle's cigarette-lighter socket.  
Always unplug the power cable from the vehicle's  
cigarette-lighter socket before you unplug it from the  
scanner.  
• Insert the DC cigarette-lighter power cable's barrel  
plug into the EXT. PWR jack, then plug the power  
cable's other end into your vehicle's cigarette-lighter  
socket.  
.
10  
When you finish using the DC cigarette-lighter power ca-  
ble, disconnect it from the cigarette-lighter socket, then  
disconnect it from your scanner.  
Note: If the scanner does not operate properly when you  
connect a DC cigarette-lighter power cable, unplug the  
power cable from the cigarette-lighter socket and clean  
the socket to remove ashes and other debris.  
CONNECTING THE ANTENNA  
Follow these steps to attach the supplied flexible anten-  
na to the connector on the top of your scanner.  
1. Align the slots around the antenna’s connector with  
the tabs on the scanner’s BNC connector.  
2. Slide the antenna’s connector down over the scan-  
ner’s connector and rotate the antenna connector’s  
outer ring clockwise until it locks into place.  
11  
Connecting an Optional Antenna  
The scanner’s antenna jack makes it easy to use the  
scanner with a variety of antennas. Instead of the sup-  
plied antenna, you can attach a different one, such as an  
external mobile antenna or outdoor base station anten-  
na. Your local RadioShack store sells a variety of anten-  
nas.  
Always use 50-ohm coaxial cable, such as RG-58 or  
RG-8, to connect an outdoor antenna. For lengths over  
50 feet, use RG-8 low-loss dielectric coaxial cable. If  
your antenna’s cable does not have a BNC connector,  
use a BNC adapter available at your local RadioShack  
store.  
Follow the installation instructions supplied with the an-  
tenna, route the antenna cable to the scanner, then con-  
nect it to the antenna jack.  
Warning: Use extreme caution when installing or re-  
moving an outdoor antenna. If the antenna starts to fall,  
let it go! It could contact overhead power lines. If the an-  
tenna touches a power line, contact with 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.  
Cautions:  
• Do not run the cable over sharp edges or moving  
parts.  
• Do not run the cable next to power cables or other  
antenna cables.  
• Do not run the cable through a vehicle’s engine  
compartment or other areas that produce extreme  
heat.  
• Follow all cautions and warnings included with the  
antenna.  
12  
CONNECTING AN EARPHONE/  
HEADPHONES  
For private listening, you can plug an earphone or head-  
1
phones with a /8-inch mini-plug (such as Cat. No. 33-  
175 or 20-210) into the  
jack on top of your scanner.  
This automatically disconnects the internal speaker.  
Listening Safely  
To protect your hearing, follow these guidelines when you  
use an earphone or headphones.  
• Do not listen at extremely high volume levels.  
Extended high-volume listening can lead to perma-  
nent 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 vol-  
ume level that does not cause discomfort might still  
damage your hearing.  
Traffic Safety  
Do not use an earphone/headphones with your scanner  
when operating a motor vehicle or riding a bicycle in or  
near traffic. Doing so can create a traffic hazard and  
could be illegal in some areas.  
If you use an earphone/headphones with your scanner,  
be very careful. Do not listen to a continuous broadcast.  
Even though some earphones/headphones let you hear  
some outside sounds when listening at normal volume  
levels, they still can present a traffic hazard.  
13  
CONNECTING AN EXTENSION  
SPEAKER  
In a noisy area, an extension speaker (such as Cat. No.  
21-549), positioned in the right place, might provide  
more comfortable listening. Plug the speaker cable’s 1/8-  
inch mini-plug into your scanner’s  
jack.  
ATTACHING THE BELT CLIP  
You can attach the supplied belt clip to make your scan-  
ner easier to carry when you are on the go. Use a Phil-  
lips screwdriver and the two supplied screws to attach  
the belt clip to the scanner. Then slide the belt clip over  
your belt or waistband.  
Belt Clip  
14  
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 them.  
frequency  
A
is the tuning location of a station (ex-  
pressed in kHz or MHz). To find active frequencies, you  
search  
can use the  
function.  
You can also search the service-search banks, which  
are preset groups of frequencies categorized by type of  
service.  
When you find a frequency, you can store it into a program-  
channel  
, which is grouped  
mable memory location called a  
channel-storage bank  
with your other channels in a  
. You  
the channel-storage banks to see if there is  
scan  
can then  
activity on the frequencies stored there. Each time the  
scanner finds an active frequency, it stays on that channel  
until the transmission ends.  
A LOOK AT THE KEYPAD  
Your scanner’s keys might seem confusing at first, but  
this information should help you understand each key’s  
function.  
15  
SCAN — scans through the stored channels.  
MANUAL — stops scanning and lets you directly enter a  
channel number or frequency.  
TRUNK — switches between conventional and trunk  
tracking modes.  
SVC (service) — selects a service bank.  
SPEED/PRI (speed/priority) — turns on and off the Hyper-  
search mode; sets and turns on and off the priority fea-  
ture.  
LOCK/  
— locks the keypad to prevent accidental pro-  
gram changes. Also turns on the display light for 15 sec-  
onds.  
Number Keys — each key has a single-digit label and a  
range of numbers. The single digits are used to enter a  
channel, frequency, or ID number. The range of num-  
bers (31–60, for example) indicates the channels that  
make up a memory bank.  
— enters a decimal point or clears an incorrect entry.  
E (enter) — enters frequencies into channels.  
t/LIMIT — sets the search direction and holds the frequen-  
cy search; sets the frequency range.  
DLY (delay) — programs a 2-second delay for the selected  
channel, a limit search, or each service scan. Also pro-  
grams a 5–second delay in the trunk tracking mode.  
SRCH — searches a specified frequency range to find fre-  
quencies; searches for another active ID in the trunk  
tracking mode.  
L/O (lock out) — lets you lock out selected channels or fre-  
quencies; lets you lock out a selected ID in the trunk  
tracking mode.  
s/HOLD — sets the search direction and holds the fre-  
quency search; holds on the current ID in the trunk track-  
ing mode.  
DATA — turns on or off the data signal skip feature or  
checks the current trunking bank in the trunk tracking  
mode.  
16  
A LOOK AT THE DISPLAY  
The display has indicators that show the scanner’s cur-  
rent operating status. A good look at the display will help  
you understand how your scanner operates.  
BANK— appears with numbers (1–10). Numbers with a  
bar under them show which channel-storage banks are  
turned on for scanning.  
TRUNK — appears when the scanner is in the trunk  
tracking mode.  
(channel activity indicators) — each represents a re-  
ceived trunking frequency or a data frequency in the  
trunk tracking mode (see “Channel Activity Indicators” on  
Page 40).  
P— appears when a priority channel is selected.  
— blinks when the scanner’s battery is low.  
DATA— appears when the data skip function is active.  
POLICE— appears when you search the police service  
bank.  
FIRE/EMG— appears when you search the fire/emer-  
gency service bank.  
AIR— appears when you search the air service bank.  
MRN — appears when you search the marine service  
bank.  
WX — appears when you search the weather service  
bank.  
SCAN— appears when you scan channels.  
17  
SRCH — lights steadily during a limit search and ID  
search, and blinks while HyperSearch is active and  
when you monitor IDs (see “Monitoring IDs” on  
Page 39).  
PRI— appears when the priority feature is turned on.  
HOLD— appears when you manually select a channel  
or when the scanner is in the hold mode during a search  
or service bank scan or during a limit search.  
DLY— appears when you program a delay.  
L/O— appears when you manually select a channel or  
frequency you locked out.  
— appears when you lock the keypad.  
Error— appears when you make an entry error.  
18  
UNDERSTANDING BANKS  
Channel Storage Banks  
To make it easier to identify and select the channels you  
want to listen to, channels are divided into 10 banks of  
30 channels each. Use each channel-storage bank to  
group frequencies, such as the police department, fire  
department, ambulance services, or aircraft (see “Guide  
to the Action Bands” on Page 52). For example, the po-  
lice department might use four frequencies, one for each  
side of town. You could program the police frequencies  
starting with Channel 1 (the first channel in bank 1) and  
program the fire department frequencies starting with  
Channel 31 (the first channel in bank 2).  
Service Banks  
The scanner is preprogrammed with the frequencies al-  
located by police, fire/emergency, aircraft, marine, and  
weather services. This is handy for quickly finding active  
frequencies instead of searching through an entire band  
(see “Scanning Service Banks” on Page 23).  
UNDERSTANDING TRUNKING  
In the past, groups that broadcast frequently, such as po-  
lice departments, were restricted to transmitting on just a  
few frequencies. This resulted in heavy traffic and often  
required 2-way radio users to wait for a specific frequen-  
cy to clear before transmitting.  
Trunked systems allow more groups of 2-way radio users  
to use fewer frequencies. Instead of selecting a specific  
frequency to transmit on, a trunked system chooses one  
of several frequencies when the 2-way radio user presses  
PTT (push to talk). The system automatically transmits  
the call on that frequency, and also sends a code that  
identifies that 2-way radio user’s transmission on a data  
channel.  
This scanner lets you select the data channel frequency  
that you want it to monitor, so you can hear both the call  
and response transmissions for that 2-way radio user  
and therefore follow the conversation. (You cannot listen  
to the data channel itself).  
19  
OPERATION  
TURNING ON THE SCANNER  
AND SETTING SQUELCH  
Note:  
Make sure the scanner's antenna is connected  
before you turn it on.  
1. Turn SQUELCH fully clockwise.  
2. Turn VOLUME/OFF clockwise until it clicks and you  
hear a hissing sound.  
3. Press MANUAL and turn SQUELCH counterclockwise,  
then leave it set to a point just after the hissing  
sound stops.  
20  
Notes:  
• If you have not stored frequencies into any chan-  
nels, the scanner does not scan.  
• If the scanner picks up unwanted, partial, or very  
weak transmissions, turn SQUELCH counterclockwise  
to decrease the scanner's sensitivity to these sig-  
nals. If you want to listen to a weak or distant sta-  
tion, turn SQUELCH clockwise.  
• If SQUELCH is adjusted so you always hear a hissing  
sound, the scanner does not scan properly.  
STORING KNOWN FREQUENCIES  
INTO CHANNELS  
Good references for active frequencies are the Ra-  
dioShack “Police Call Guide including Fire and Emer-  
gency Services,” “Official Aeronautical Frequency  
Directory,” and “Maritime Frequency Directory.” We up-  
date these directories every year, so be sure to get a  
current copy.  
Note: To store trunking system frequencies, see “Pro-  
gramming Trunked Frequencies” on Page 34.  
Follow these steps to store frequencies into channels.  
1. Press MANUAL, enter the channel number where you  
want to store a frequency, then press MANUAL again.  
The channel number appears.  
2. Use the number keys and to enter the frequency  
(including the decimal point) you want to store.  
21  
3. Press E to store the frequency into the channel.  
Notes:  
If you made a mistake in Step 2, Errorappears  
and the scanner beeps when you press E. Simply  
start again from Step 2.  
Your scanner automatically rounds the entered  
frequency to the nearest valid frequency. For  
example, if you enter a frequency of 151.473,  
your scanner accepts it as 151.475.  
Press DELAY if you want the scanner to pause 2  
seconds on this channel after a transmission  
ends before it proceeds to the next channel (see  
“Delay” on Page 26). The scanner also stores  
this setting in the channel.  
4. If you want to program the next channel in  
sequence, press MANUAL and repeat Steps 2 and 3.  
LIMIT SEARCH  
If you do not know a frequency to store, you can search  
for transmissions within a range of frequencies you se-  
lect, called the limit search range. Then you can store  
any interesting frequencies you find into channels.  
1. Press MANUAL, enter the channel number where you  
want to store a frequency, then press MANUAL again.  
The channel number appears.  
2. Use the number keys and to enter the frequency  
that is the lower limit of the range you want to  
search.  
3. Press LIMIT.  
22  
4. Use the number keys and to enter the frequency  
that is the upper limit of the range you want to  
search.  
5. Press LIMIT, then press SRCH. The scanner begins to  
search from the lower limit to the upper limit.  
6. When the scanner stops on a transmission, quickly  
press either:  
E to store the displayed frequency into the chan-  
nel. The scanner stores the frequency and con-  
tinues searching.  
s or t to stop searching so you can listen to the  
transmission. HOLDappears.  
To release hold and continue searching, press  
SRCH.  
Notes:  
To step through the frequencies while HOLD  
appears, press s or t.  
• If you tune to a search skip frequency, L/O  
appears. See “Locking Out Channels and Frequen-  
cies” on Page 27.  
To skip data signals (such as modem signals), press  
DATA. See “Skipping Data Signals” on Page 31.  
SCANNING SERVICE BANKS  
You can scan for police, fire/emergency, aircraft, marine,  
and weather transmissions even if you do not know the  
specific frequencies that are used in your area. And, you  
can store any of the frequencies you find into channels.  
23  
Your scanner has the following preprogrammed service  
banks.  
• POLICE — contains 1,079 police frequencies.  
• FIRE/EMG — contains 280 fire and emergency ser-  
vice frequencies.  
• AIR — contains 2,319 aircraft and air service fre-  
quencies.  
• MRN contains 65 marine frequencies.  
• WX — contains 7 weather frequencies.  
To select a service bank, press SVC. A service bank’s  
name (POLICE, FIRE/EMG, AIR, MRN, or WX) and  
one of the preset police frequencies appear. After a 2-  
second delay, scanning begins. To select another ser-  
vice bank, repeatedly press SVC until the scanner dis-  
plays the name of the bank you want to use.  
Notes:  
• In the marine band, the active frequency and its  
marine channel number alternately appear.  
To skip data signals (such as modem signals), press  
DATA. See “Skipping Data Signals” on Page 31.  
• Because frequencies are not always assigned to the  
same services everywhere, you might hear transmis-  
sions from one service in another service group.  
If necessary, press SCAN to start scanning immediately  
or to continue scanning if you want to skip a frequency.  
During service-scan, you can press HOLD to pause the  
scanning. HOLD appears. Press s or t to move up or  
down one step, or press SCAN to resume scanning.  
Follow these steps to store frequencies into channels.  
1. Press MANUAL. HOLDappears.  
2. Use the number keys to enter the channel number  
(1–300) where you want to store the frequency, then  
press MANUAL.  
3. Press SVC to select a service bank and begin scanning.  
4. When the scanner stops on a transmission, press  
HOLD. The frequency appears.  
5. Press E to store the frequency into the channel.  
24  
SCANNING THE STORED CHANNELS  
To begin scanning channels, press SCAN. The scanner  
scans through all non-locked channels in the activated  
banks. When the scanner finds a transmission, it stops  
on it. When the transmission ends, the scanner resumes  
scanning.  
Note:  
To scan in the trunk tracking mode, see “Scanning  
a Trunked Bank” on Page 36.  
MANUALLY SELECTING A CHANNEL  
You can continuously monitor a single channel without  
scanning. This is useful if you hear an emergency broad-  
cast on a channel and do not want to miss any details —  
even though there might be periods of silence — or if  
you want to monitor a specific channel.  
Follow these steps to manually select a channel.  
1. Press MANUAL.  
2. Enter the channel number.  
3. Press MANUAL again.  
Or, if your scanner is scanning and stops at the desired  
channel, press MANUAL one time. (Pressing MANUAL ad-  
ditional times causes your scanner to step through the  
channels.)  
To resume scanning, press SCAN.  
DELETING A STORED FREQUENCY  
1. Press MANUAL.  
2. Use the number keys to enter the channel number  
containing the frequency you want to delete. Then  
press MANUAL again.  
3. Press 0, then press E. The frequency is deleted.  
Note:  
Channels with no frequencies are automatically  
locked out during scanning.  
25  
SPECIAL FEATURES  
DELAY  
Many agencies use a two-way radio system that might  
have a period of 2 or more seconds between a query  
and a reply. To keep from missing a reply, you can pro-  
gram a 2-second delay into any channel or frequency.  
The scanner continues to monitor the frequency for 2  
seconds after the transmission stops before resuming  
scanning or searching.  
To program a 2-second delay:  
• If the scanner is scanning channel-storage banks  
and stops on an active channel where you want to  
store a delay, quickly press DLY before it continues  
scanning again. DLYappears.  
• If the desired channel is not  
selected, manually select the  
channel, then press DLY. DLY  
appears.  
If the scanner is scanning service banks, press DLY  
while the scanner is scanning. DLY appears and  
the scanner automatically adds a 2-second delay  
to every transmission it stops on in that band.  
To turn off the 2-second delay, press DLY while the scan-  
ner is monitoring the channel or scanning the service  
banks. DLYdisappears from the display.  
26  
TURNING CHANNEL-STORAGE  
BANKS ON AND OFF  
You can turn each channel-storage bank on and off.  
When you turn off a bank, the scanner does not scan  
any of the 30 channels in that bank.  
While scanning, press the number key that corresponds  
to the bank you want to turn on or off. If the bar under the  
bank number is on, the bank is turned on and the scan-  
ner scans all channels within that bank that are not  
locked out. If the bar is off, the scanner does not scan  
any of the channels within that bank.  
Notes:  
• You can manually select any channel within a bank,  
even if that bank is turned off.  
• You cannot turn off all banks. One bank is always  
active.  
LOCKING OUT CHANNELS AND  
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.  
Note:  
If you just want to skip over a lengthy transmission  
(such as a modem signal), see “Skipping Data Signals”  
on Page 31.  
Locking Out Channels  
To lock out a channel while  
scanning, press L/O when the  
scanner stops on the chan-  
nel. To lock out a channel  
manually, manually select  
the channel and hold down  
L/O until L/Oappears.  
L/O  
27  
Note: You can still manually select locked-out channels.  
To remove the lockout from a channel, manually select  
the channel and hold down L/O until L/O disappears  
from the display.  
To unlock all channels in the banks that are turned on,  
press MANUAL to stop scanning, then hold down L/O until  
the scanner beeps twice.  
Locking Out Frequencies  
To lock out a frequency during a limit search or service  
bank scan, press L/O when the scanner stops on the fre-  
quency. The scanner locks out the frequency, then con-  
tinues searching. To lock out a frequency manually,  
manually select the frequency and hold down L/O until  
L/Oappears.  
Notes:  
• The scanner does not display locked-out frequen-  
cies during a search.  
You can lock out as many as 20 frequencies during  
a search. If you try to lock out more than 20 frequen-  
cies, the first locked-out frequency is automatically  
unlocked.  
Follow these steps to remove the lockout from a fre-  
quency.  
1. During a search, select the frequency you want to  
remove the lockout from.  
2. Press L/O. L/Odisappears from the display.  
To remove the lockout from all frequencies, while  
searching, hold down L/O until the scanner beeps twice  
(about 2 seconds).  
PRIORITY  
The priority feature lets you scan through channels and  
still not miss important or interesting calls on specific  
channels. You can program one stored channel in each  
bank as a priority channel (for up to a total of 10 stored  
channels). As the scanner scans the bank, if the priority  
feature is turned on, the scanner checks the priority  
channels for activity every 2 seconds.  
28  
The scanner automatically designates each bank's first  
channel as its priority channel. Follow these steps to se-  
lect a different channel as the priority channel for a bank.  
1. Press MANUAL.  
2. Enter the channel number you want to select as the  
priority channel, then press MANUAL again.  
3. Hold down PRI until the scanner beeps twice. P  
appears to the left of the channel number.  
4. Repeat Steps 2–3 for the channel in each bank you  
want to program as a priority channel.  
To turn on the priority feature, press PRI during scanning.  
PRIappears. Every 2 seconds the scanner checks the  
priority channel in each bank that is turned on, starting  
from the lowest to the highest-numbered priority chan-  
nel.  
To turn off the priority feature, press PRI. PRI disap-  
pears.  
Notes:  
• The priority feature must be turned off to use the  
data skip feature (see “Skipping Data Signals” on  
Page 31).  
• You can lock out priority channels. If you lock out all  
priority channels, P ch Loc Out appears when  
you turn on the priority feature.  
29  
USING THE KEYLOCK  
Once you program your scanner, you can protect it from  
accidental program changes by turning on the keylock  
feature. When locked, the only controls that operate are  
SCAN, MANUAL, LOCK/  
, VOLUME/OFF, and SQUELCH.  
Note:  
The keylock does not prevent the scanner from  
scanning channels.  
To turn on the keylock, hold down LOCK/  
appears. To turn it off, hold down LOCK/  
disappears.  
until  
until  
USING THE DISPLAY BACKLIGHT  
You can turn on the display backlight for easy viewing at  
night. Press LOCK/  
to turn on the display backlight  
for 15 seconds. To turn off the backlight before 15 sec-  
onds elapse, press the button again.  
CHANGING SEARCH SPEEDS  
The PRO-90 has two search speeds for a limit search.  
Normal Search  
HyperSearch  
100 steps/second  
300 steps/second  
30  
To switch between normal and HyperSearch speeds,  
during a limit search, press SPEED/PRI. SRCHflashes dur-  
ing hypersearch.  
Note: You can use HyperSearch only in the 5 kHz step  
bands (29–54 MHz and 137–174 MHz).  
BATTERY SAVE  
To save battery power when a channel is manually se-  
lected, the scanner’s battery save function automatically  
sets the scanner to a standby mode if the scanner does  
not receive any signals for more than 1 minute. During  
the standby mode, the scanner repeatedly turns off the  
internal power for 1 second then turns on the internal  
1
power for about /3 of a second to check for a transmis-  
sion.  
Note: The scanner’s battery save function does not work  
if the priority function is on, even if a channel is manually  
selected.  
SKIPPING DATA SIGNALS  
You can set the scanner so it skips nonmodulated or  
data signals (such as modem transmissions) during a  
search.  
Note: Since data signals are not generally found in the  
air band, this feature does not work in the air band.  
To turn on the data skip feature, be sure the priority fea-  
ture is turned off (see “Priority” on Page 28), then press  
DATA. DATAappears. To turn off the feature, press DATA  
again. DATAdisappears.  
31  
TRUNK TRACKING  
Your scanner is designed to track transmissions on Mo-  
torola Type I, Type II, and hybrid analog trunking sys-  
tems, which are extensively used in 800 MHz  
communications. Remember these important points  
when tracking transmissions:  
Your scanner monitors Type II systems by default.  
However, you can change this if the system in your  
area is different (see “Types of Trunking Systems”  
below and “Scanning Type I and Hybrid Trunked  
Systems” on Page 44 for more information).  
Your scanner cannot track transmissions on non-  
Motorola trunking systems.  
Your scanner cannot track an 800 MHz trunked sys-  
tem and scan frequencies in conventional mode at  
the same time.  
• The frequencies for many of the 800 MHz public  
safety systems are listed in the separate “National  
Public Safety Trunked System Frequency Guide”  
included with your PRO-90.  
TYPES OF TRUNKING SYSTEMS  
Your trunk tracking scanner can monitor two basic types  
of systems — Type I and Type II. Instead of selecting a  
specific frequency to transmit on, a trunked system  
chooses one of several frequencies in a 2-way radio us-  
er’s talk group when that user presses PTT (push to talk).  
Thus, trunking systems allocate a few frequencies  
among many different users, but the way Type I and  
Type II systems do this is slightly different. One important  
distinction between these systems is the amount of data  
transmitted by each radio when its push-to-talk button  
(PTT) is pressed. In a Type I system, the radio’s ID and  
its current affiliation (the trunk system it belongs to) are  
both transmitted. In a Type II system, only the radio’s ID  
is transmitted.  
Why the difference? In Type I systems, each radio in the  
trunk group individually transmits its own affiliation, while  
the trunk system maintains a database that determines  
each radio's affiliation(s) in Type II systems.  
Another difference between the systems is that Type I  
systems are arranged in a fleet-subfleet hierarchy. For  
example, it is possible for a city using a Type I system to  
designate 4 fleets, each with 8 subfleets.  
32  
The fleets might be the police department, the fire de-  
partment, utilities, and city administration. The police  
might decide to further divide its fleet into subfleets such  
as dispatch, tactical operations, detectives, north, south,  
east and west side patrols, and supervisors. All the avail-  
able police radios would then be assigned to one of the  
police subfleets, letting the police centralize their com-  
munications and control the type of users on a single  
system. Determining the exact fleet-subfleet hierarchy  
for a particular area is referred to as fleet map program-  
ming.  
The disadvantage of a Type I system is that the brief  
burst of data sent when a user transmits must contain  
the radio’s ID and its fleet and subfleet. This is three  
times the amount of data a Type II system radio sends.  
Since the data capacity of Type I systems is limited and  
the amount of data increases with each user, Type I sys-  
tems usually accommodate fewer users than Type II  
systems. Nevertheless, Type I systems are still in use.  
There are also hybrid systems which are a combination  
of both Type I and Type II. Your scanner defaults to  
monitor Type II systems, but you can change to Type I or  
a hybrid of Type I and Type II systems by selecting a  
preprogrammed fleet map or creating a custom fleet  
map for your area (see “Scanning Type I and Hybrid  
Trunked Systems” on Page 44).  
You do not need to determine the fleet-subfleet hierar-  
chy for Type II systems unless you are tracking hybrid  
systems that contain both Type I and Type II systems.  
SETTING THE SCANNER TO THE  
TRUNK TRACKING MODE  
Repeatedly press TRUNK to switch between the scan-  
ner’s conventional and trunk tracking modes.  
33  
SETTING SQUELCH FOR THE  
TRUNK TRACKING MODE  
Your scanner’s squelch setting is automatically adjusted  
in the trunking mode, which means it is not necessary to  
manually adjust squelch while tracking trunked transmis-  
sions. However, the squelch setting can affect how fast  
your scanner acquires the data channel, and, in some in-  
stances, can prevent your scanner from acquiring the  
data channel at all.  
We recommend you set SQUELCH to this position before  
selecting a trunked bank.  
Note:  
You can change this setting, if necessary, to pro-  
vide better performance in your area.  
PROGRAMMING TRUNKED  
FREQUENCIES  
Before you program your scanner to track a trunked sys-  
tem, consider the following:  
• Valid trunked system frequencies range from  
851.0125–868.9875 in 12.5 kHz steps.  
You can use any of your scanner’s banks as either a  
trunk tracking bank or conventional scanning bank,  
but you cannot mix the two.  
• The scanner only scans one trunked system at a  
time. Although you can store frequencies for more  
than one trunked system in one of your scanner’s  
banks, the scanner only scans the frequencies  
associated with the first data channel it finds.  
Before scanning a trunked system’s transmissions, you  
must store the trunked system’s frequencies in one of  
the banks in your scanner by following these steps.  
34  
1. Hold down TRUNK until the scanner beeps twice.  
BANK, TRUNK, and the bank numbers flash.  
2. Select the bank you want to store the trunked sys-  
tem’s frequencies in by pressing a number key. The  
scanner automatically selects the first channel in the  
bank when you select the bank.  
3. Use the number keys to enter the trunked system’s  
frequencies, then press E.  
Note: If you entered an invalid frequency in Step 3,  
the scanner beeps, the channel number flashes and  
Error appears. If this happens, press to clear  
the frequency, then repeat Step 3.  
4. Press either MANUAL or s to select the next channel  
in the bank.  
35  
5. Repeat Steps 3 and 4 until all frequencies have  
been entered.  
6. Press SRCH to begin searching  
for the trunk’s data channel (the  
channel that controls the trunk).  
SRCH flashes as the scanner  
searches for the data channel.  
While the scanner looks through  
the frequencies, you see them  
on the display. When the scan-  
ner finds the data channel, it  
begins trunk tracking.  
SCANNING A TRUNKED BANK  
You can scan one trunked bank at a time. Once you  
have stored frequencies for a trunked system in one or  
more of the 10 available banks and you are scanning  
non-trunked frequencies, follow these steps to begin  
trunk scanning.  
1. Press TRUNK. The indicators for all banks flash.  
2. Use the number keys to enter the number for the  
trunked bank you want to scan, then press SRCH.  
The scanner searches for a data channel. When the  
scanner finds it, it begins trunk tracking.  
If you entered all of the trunk’s frequencies, you  
should be able to follow conversations between  
broadcasters even when they change frequen-  
cies. IDs, which represent different service  
groups, appear.  
ID  
36  
Note: To review the bank currently in use, press  
DATA while in the trunk tracking mode. The bar for  
the selected bank flashes at the top of the display  
for about 5 seconds.  
3. To return to non-trunked scanning, press TRUNK  
again.  
Hint: While scanning, you will not know exactly who the  
ID's are assigned to until you listen awhile or until you lo-  
cate ID lists in frequency guides or on internet sites such  
as www.trunkscanner.com. Within a few minutes, you  
can usually figure out if what you are listening to is a po-  
lice, fire, or emergency medical 2-way radio user. Other  
IDs might take some time, but determining who each ID  
represents is half the fun of trunk tracking!  
Monitoring an Active ID  
When the scanner stops on a transmission, you can hold  
the scanner on that transmission.  
1. Press HOLD. HOLD appears, the scanner stays on  
the current ID, and the channel number changes.  
2. If you want to listen to a different ID, use the number  
keys to enter the ID you want to hold.  
3. Press HOLD again. HOLD flashes and the scanner  
monitors that ID.  
4. When you want to stop the hold and resume search-  
ing for a data channel so you can continue trunk  
tracking, press SRCH.  
Note: You can also follow these steps to hold on an ID  
while scanning a scan list. See “Scan Lists” on Page 41.  
37  
Locking Out IDs  
As with conventional scanning, it is possible to lock out  
unwanted traffic. This is particularly important in trunked  
systems because signals you cannot listen to (such as  
water meters, door alarms, traffic signals, and encrypted  
signals) are assigned IDs just like other users. You can  
have up to 100 IDs locked out at one time.  
Note: If you lock out an ID while searching, it is also  
locked out of the scan list(s). See “Scan Lists” on  
Page 41.  
To lock out an ID, press L/O when the ID appears.  
The ID is locked out, and the next active ID appears.  
Unlocking a Single ID  
1. Hold down L/O until you hear two short beeps.  
2. Repeatedly press t or s to select the ID you want to  
unlock.  
3. Press L/O.  
The ID is unlocked and the next locked ID or –  
– ––(if there are no other locked IDs) appears.  
4. Press SRCH to continue the scanner’s previous func-  
tion.  
Unlocking All IDs  
Hold down L/O until you hear two short beeps. Then  
press E to unlock all the IDs at once.-The scanner beeps  
twice.  
Note: When you unlock all the IDs, the scan list mode  
appears. Press SCAN to scan the IDs stored in your scan  
lists or press SRCH to continue the scanner’s previous  
function. For more information about scan lists, see  
“Scan Lists” on Page 41.  
38  
Using Trunk Tracking Scan Delay  
Many trunked systems have a period of 2 or more sec-  
onds between a query and a reply. You can program a  
5-second delay to hold on an ID for 5 seconds to wait for  
a reply. The scanner continues to monitor the frequency  
for 5 seconds after the transmission stops before resum-  
ing scanning.  
Press DLY to turn trunk tracking scan delay on or off.  
DLYappears when trunk tracking scan delay is set.  
Note: If you consistently miss responses even with trunk  
tracking scan delay set, you might need to change the  
default system type or the fleet map you are using. See  
“Scanning Type I and Hybrid Trunked Systems” on  
Page 44.  
Monitoring IDs  
You can use your scanner’s display to monitor the fre-  
quencies in a trunked system for activity. You cannot  
hear conversations in this mode, but this is an excellent  
way to determine which talk groups are the most active.  
To set the scanner to monitor IDs, hold down SRCH until  
the scanner beeps twice. SRCH flashes, and all active  
talk group IDs appear in succession. To stop monitoring  
IDs, press SRCH again.  
Note: When you monitor IDs, locked-out IDs also ap-  
pear.  
39  
CHANNEL ACTIVITY INDICATORS  
Your scanner has 20 channel activity indicators (bars)  
which show the activity taking place on a trunked sys-  
tem. You can see how many frequencies are being used  
and generally monitor how much communication traffic  
is occurring.  
Each frequency you store in a trunking bank has a corre-  
sponding activity indicator. However, since there are  
only 20 indicators, but you can store up to 30 frequen-  
cies, some indicators might indicate more than one fre-  
quency if the trunked system you are scanning has more  
than 20 channels.  
• The indicator that remains on steadily even when  
there are no current transmissions represents the  
frequency being used as the data channel.  
• The indicator that flashes when an ID appears rep-  
resents the frequency being used by the radio you  
are currently hearing.  
• If an indicator turns on but you do not hear a conver-  
sation, the channel is probably being used for a tele-  
phone interconnect call or a private call, or the  
indicator might be a locked-out ID. Your scanner  
does not monitor these types of calls.  
• If the scanner is holding on an ID which is not  
active, the other activity indicators turn on and off as  
other groups use the system.  
40  
SCAN LISTS  
When you program trunked frequencies into a bank (see  
“Programming Trunked Frequencies” on Page 34), your  
scanner sets up 5 scan lists into which you can store  
your favorite IDs. Each list can contain up to 10 IDs, so  
you can store a total of 50 IDs for each trunk tracking  
bank (500 IDs if you use all banks as trunking banks!).  
Scan lists help you organize trunking system users into  
categories. For example, you might use List 1 for police  
IDs, List 2 for fire department IDs, List 3 for emergency  
medical service IDs, and so on. Once IDs are stored in  
lists, you can scan them like you scan conventional  
channels. You can program IDs into scan lists manually,  
during a search, or automatically.  
Manually Storing IDs into Scan Lists  
1. Select the trunking bank you want (see “Scanning a  
Trunked Bank” on Page 36).  
2. After the scanner begins trunk tracking, press MAN-  
UAL. A bar appears at the top of the display, showing  
the current scan list.  
3. Repeatedly press s or t to select the scan list loca-  
tion (shown at the top of the display) you want to  
program.  
41  
4. Enter the Type II ID you want to store, then press E.  
Or, to enter a Type I ID:  
a. Use the number keys to enter the block number  
and the fleet number, then press .  
b. Enter the subfleet number, then press E.  
Note: To clear a mistake while entering an ID, press  
twice, then start over at Step 1.  
5. Repeatedly press MANUAL or s to select the next  
scan list location you want to program. Then repeat  
Step 4 to enter another ID.  
Storing IDs Into Scan Lists While Search-  
ing  
Follow these steps to select a scan list location and store  
an ID during a search.  
1. When your scanner stops on an ID you want to  
store, press PRI. The currently selected scan list  
memory location flashes.  
2. Press E to store the ID in the selected scan list  
memory location. Or, repeatedly press s or t to  
select the scan list memory location you want, then  
press E.  
3. Press SRCH to resume searching.  
Automatically Storing an ID in a Scan List  
Location  
Follow these steps to store an ID in the first empty scan  
list location during a search.  
1. When your scanner stops on an ID you want to  
store, press E. The scanner stores the ID in the dis-  
played scan list location.  
42  
2. Press SRCH to resume searching.  
Deleting a Stored ID  
1. Repeatedly press s or t to select the scan list loca-  
tion (shown at the top of the display) you want to  
delete.  
2. Press 0 then E.  
SCANNING THE SCAN LISTS  
Press SCAN to begin scanning the lists you have pro-  
grammed.  
Note: If you haven't programmed any IDs, SCANscrolls  
on the display but your scanner does not stop on an ac-  
tive conversation.  
To remove a scan list from active scanning, use the  
number keys to enter the scan list’s number. The scan  
43  
list indicator turns off, and the IDs in that list are not  
scanned.  
Note: One scan list must always be active. If you try to re-  
move all the scan lists, the first scan list will stay active.  
To restore a scan list to active scanning, use the number  
keys to enter its number again.  
Press SRCH to return to the scanner’s previous function.  
To alternate the display between the channel activity in-  
dicators and the scan list indicators, press PRI.  
SCANNING TYPE I AND HYBRID  
TRUNKED SYSTEMS  
Your PRO-90 is set to scan Type II user IDs by default.  
When you scan trunked frequencies, each Type II user  
ID you see appears as an even number without a dash  
(such as 2160). Your PRO-90 can also scan Type I  
trunked systems. Each Type I ID appears as a three- or  
four-digit number, followed by a hyphen, followed by a  
one- or two-digit number (such as 200-14). If you notice  
a mix of odd- and even-user IDs (such as 6477, 2160,  
6481, 6144, and 1167), then you are probably monitor-  
ing either a Type I or hybrid (a combination of Type I and  
Type 2 user IDs) system (see “Types of Trunked Sys-  
tems” on Page 32).  
You might also notice that you are missing responses  
when you hold on an active ID. Unlike Type II systems,  
Type I and hybrid systems require a fleet map that sets  
specific fleet-subfleet parameters. It is easy to select a  
fleet map to scan; what is not always easy is selecting or  
programming a map that is being used in your particular  
area.  
When a Type I system is designed, the address informa-  
tion for all its user IDs is divided into 8 equal-size blocks,  
numbered 0–7, and each block is assigned a size code.  
44  
When you set up your scanner to track a Type I system,  
you must choose a size code for each block. When you  
have chosen a size code for all 8 blocks, you will have  
duplicated the fleet map for the system you are tracking.  
If you have chosen correctly, you will be able to track  
transmissions in that system.  
Each size code defines the number of fleets, subfleets,  
and IDs each block has. For example, you can see in the  
following table that a size code of S-4 has one fleet,  
which is divided into 16 separate subfleets, and it has a  
total of 512 individual IDs.  
Size  
Fleets  
Subfleets  
IDs  
Block  
Used  
S-0  
Reserved block for Type II IDs  
S-1  
128  
16  
8
4
16  
1
1
1
1
1
1
1
1
1
1
1
2
4
8
S-2  
8
64  
S-3  
8
128  
512  
32  
S-4  
1
16  
4
S-5  
64  
32  
32  
16  
8
S-6  
8
32  
S-7  
4
64  
S-8  
4
128  
256  
256  
256  
1024  
2048  
4096  
S-9  
4
S-10  
S-11  
S-12  
S-13  
S-14  
4
8
2
16  
16  
16  
16  
1
1
1
Each ID in the block is unique. The left-most digit is the  
block number in the ID. The next two digits identify which  
fleet is active, and the last digit(s) (after the hyphen)  
identifies the subfleet.  
The size codes selected by a Type I system designer de-  
pend on the specific needs of the system's users. Some  
organizations might want many subfleets with only a few  
radios each, while another organization might want only  
a few subfleets, with many radios each. To scan Type I  
45  
systems, you must select or program a fleet map with  
the same size code assignments as the trunked system.  
If you do this accurately, you will track all the fleet and  
subfleet combinations used by the system. In other  
words, you will hear complete communications while  
monitoring a trunked system.  
Note: Preset fleet maps might be available at  
If you do not already know the size codes used, you will  
have to guess them. But since you do not have to figure  
out all the blocks at once, this is not as hard as it seems.  
Select a size code for a block, then press SRCH. Now lis-  
ten to the communications. If you decide you are receiv-  
ing most of the replies to the conversations with IDs  
assigned to the block you just programmed, then you  
have probably selected the right size code and can work  
on the next block of the map.  
There are 16 preset fleet maps to choose from, and it is  
best to start with these when setting up a Type I or hy-  
brid trunk tracking bank. If none of the following preset  
fleet maps allow you to follow complete conversations,  
then you probably need to program your own fleet map  
(see “Programming a Fleet Map” on Page 49).  
E1P1  
E1P2  
E1P3  
Block Size  
Code  
Block Size  
Code  
Block Size  
Code  
0
1
2
3
4
5
6
7
S11  
S11  
S11  
S11  
S11  
S11  
S11  
S11  
0
1
2
3
4
5
6
7
S4  
S4  
S4  
S4  
S4  
S4  
S4  
S4  
0
1
2
3
4
5
6
7
S4  
S4  
S4  
S4  
S4  
S4  
S12  
---  
E1P4  
E1P5  
E1P6  
Block Size  
Code  
Block Size  
Code  
Block Size  
Code  
0
S12  
0
S4  
0
S3  
46  
1
2
3
4
---  
S4  
1
2
3
4
S4  
S12  
---  
1
2
3
4
S10  
S4  
S4  
S4  
S4  
S4  
S12  
E1P4  
E1P5  
E1P6  
Block Size  
Code  
Block Size  
Code  
Block Size  
Code  
5
6
7
S4  
S4  
S4  
5
6
7
S4  
S4  
S4  
5
6
7
---  
S12  
---  
E1P7  
E1P8  
E1P9  
Block Size  
Code  
Block Size  
Code  
Block Size  
Code  
0
1
2
3
4
5
6
7
S10  
S10  
S11  
S4  
0
1
2
3
4
5
6
7
S1  
S1  
S2  
S2  
S3  
S3  
S4  
S4  
0
1
2
3
4
5
6
7
S4  
S4  
S0  
S0  
S0  
S0  
S0  
S0  
S4  
S4  
S4  
S4  
E1P10  
E1P11  
E1P12  
Block Size  
Code  
Block Size  
Code  
Block Size  
Code  
0
1
2
3
4
S0  
S0  
S0  
S0  
S0  
0
1
2
3
4
S4  
S0  
S0  
S0  
S0  
0
1
2
3
4
S0  
S0  
S0  
S0  
S0  
47  
5
6
7
S0  
S4  
S4  
5
6
7
S0  
S0  
S0  
5
6
7
S0  
S0  
S4  
E1P13  
E1P14  
E1P15  
Block Size  
Code  
Block Size  
Code  
Block Size  
Code  
0
1
2
3
4
5
6
7
S3  
S3  
S11  
S4  
S4  
S0  
S0  
S0  
0
1
2
3
4
5
6
7
S4  
S3  
S10  
S4  
S4  
S4  
S12  
---  
0
1
2
3
4
5
6
7
S4  
S4  
S4  
S11  
S11  
S0  
S12  
---  
E1P16  
Block Size  
Code  
0
1
2
3
4
5
6
7
S3  
S10  
S10  
S11  
S0  
S0  
S12  
---  
Selecting a Preset Fleet Map  
1. Select the bank where you want to store the preset  
fleet map by pressing a number key.  
48  
2. Press DATA.  
3. Repeatedly press s or t to select E1, then press  
DATA again.-  
4. Repeatedly press s or t to select the name of the  
map you want (such as P7), then press E.  
The scanner then searches for transmissions using the  
preset map you chose.  
Note: When the scanner searches for transmissions,  
you see Type I fleet and subfleet IDs such as 100-12,  
100-9, 000-12, or 400-8.  
How do you know if the preset map you selected is cor-  
rect? Listen to see if you are following complete conver-  
sations. If not, try another preset map.  
Programming a Fleet Map  
1. Select the bank where you want to program the fleet  
map by pressing a number key.  
2. Press DATA.  
3. Repeatedly press s or t until E1appears, then press  
DATA.-  
4. Repeatedly press s or t until USrappears.  
5. Press DATA.  
49  
6. Repeatedly press s or t to select the size code for  
the first block, then press E.- The next available  
block appears.  
7. Repeat Step 6 until you have selected a size code  
for each block you want to work with.  
8. Press SRCH. The scanner exits the trunking pro-  
gramming mode, tunes the data channel, then  
begins to search using the map you programmed.  
Note: If you select size code S-12, S-13, or S-14, these re-  
strictions apply:  
• S-12 can only be assigned to Blocks 0, 2, 4, or 6.  
• S-13 can only be assigned to Blocks 0 and 4.  
• S-14 can only be assigned to Block 0.  
Since these size codes require multiple blocks, you will  
be prompted for the next available block when program-  
ming a fleet map. For example, if you assign Block 0 as  
an S-12, the scanner prompts you for b2, the next block  
available, instead of b1. And if you assign Block 0 as an  
S-14, you would not see another prompt because it uses  
all available blocks.  
Programming a Hybrid System  
A hybrid system is simply a Type I system with some of  
its blocks designated as Type II blocks. To program a  
hybrid system, follow the steps listed in “Programming a  
Fleet Map” on Page 49. However, if you want a block to  
be Type II, select size code S-0in Step 6.  
50  
A GENERAL GUIDE TO SCANNING  
Reception of the frequencies covered by your scanner is  
mainly “line-of-sight.” That means you usually cannot  
hear stations that are beyond the horizon.  
GUIDE TO FREQUENCIES  
National Weather Frequencies  
162.400  
162.425  
162.450  
162.475  
162.500  
162.525  
162.550  
Canadian Weather Frequencies  
161.650  
161.775  
163.275  
Note:  
These frequencies are not pre-programmed in the  
weather service bank but can be manually programmed  
into a channel.  
Birdie Frequencies  
Every scanner has birdie frequencies. Birdies are sig-  
nals created inside the scanner’s receiver. These oper-  
ating frequencies might interfere with broadcasts on the  
same frequencies. If you program one of these frequen-  
cies, you hear only noise on that frequency. If the inter-  
ference is not severe, you might be able to turn SQUELCH  
clockwise to cut out the birdie. This scanner’s birdie fre-  
quencies (in MHz) are:  
41.6000  
118.8875  
138.7000  
138.7050  
158.5150  
158.5200  
168.4250  
406.2000  
413.1750  
413.2250  
416.1125  
426.0125  
426.0250  
435.9250  
438.4000  
445.8250  
445.8375  
455.7375  
465.6500  
475.5500  
485.4625  
489.2500  
495.3625  
496.3750  
813.4000  
852.0375  
899.2375  
926.7000  
51  
GUIDE TO THE ACTION BANDS  
Typical Band Usage  
VHF Band  
Low Range  
29.00–50.00 MHz  
6-Meter Amateur  
U.S. Government  
2-Meter Amateur  
High Range  
50.00–54.00 MHz  
137.00–144.00 MHz  
144.00–148.00 MHz  
148.00–174.00 MHz  
UHF Band  
U.S. Government  
70-cm Amateur  
Low Range  
FM-TV Audio Broadcast, Wide  
Band  
406.00–420.00 MHz  
420.00–450.00 MHz  
450.00–470.00 MHz  
470.00–512.00 MHz  
Public Service  
806.00–823.93 MHz  
851.00–856.00 MHz  
856.00–861.00 MHz  
Conventional Systems  
Conventional/Trunked Sys-  
tems  
Trunked Systems  
Public Safety  
High Range  
33-Centimeter Amateur  
Private Trunked  
General Trunked  
Fixed Services  
861.00–866.00 MHz  
866.00–868.93 MHz  
896.11–902.00 MHz  
902.00–928.00 MHz  
935.00–940.00 MHz  
940.00–941.00 MHz  
941.00–944.00 MHz  
944.00–952.00 MHz  
Studio-to-Transmitter Broad-  
cast Links  
Private Fixed Services, Paging  
Aeronautical Navigation  
952.00–960.00 MHz  
960.00–1000.00 MHz  
Primary Usage  
As a general rule, most of the radio activity is concentrat-  
ed on the following frequencies:  
VHF Band  
Activities  
Frequencies  
Government, Police, and Fire  
Emergency Services  
Railroad  
153.785–155.980 MHz  
158.730–159.460 MHz  
160.000–161.900 MHz  
52  
UHF Band  
Activities  
Frequencies  
Land-Mobile “Paired” Fre-  
quencies  
450.000–470.000 MHz  
Base Stations  
Mobile Units  
451.025–454.950 MHz  
456.025–459.950 MHz  
460.025–464.975 MHz  
465.025–469.975 MHz  
Repeater Units  
Control Stations  
Note: Remote control stations and mobile units operate  
at 5 MHz higher than their associated base stations and  
relay repeater units.  
BAND ALLOCATION  
To help decide which frequency ranges to scan, use the  
following listing of the typical services that use the fre-  
quencies your scanner receives. These frequencies are  
subject to change, and might vary from area to area. For  
a more complete listing, refer to the “Police Call Radio  
Guide including Fire and Emergency Services,” available  
at your local RadioShack store.  
Abbreviations  
Services  
BIFC . . . . . . . . . . . . . . . . . . Boise (ID) Interagency Fire Cache  
BUS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Business  
CAP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Civil Air Patrol  
CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Citizens Band  
CCA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Common Carrier  
CSB. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Conventional Systems  
CTSB. . . . . . . . . . . . . . . . . . . . .Conventional/Trunked Systems  
FIRE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Fire Department  
HAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amateur (Ham) Radio  
GOVT . . . . . . . . . . . . . . . . . . . . . . . . . . . . Federal Government  
GMR . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Mobile Radio  
GTR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Trunked  
IND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Industrial Services  
(Manufacturing, Construction, Farming, Forest Products)  
MAR . . . . . . . . . . . . . . . . . . . . . . . . . . . Military Amateur Radio  
MARI . . . . . . . . . . . . . . . . . . . . . . . . . . . Maritime Limited Coast  
(Coast Guard, Marine Telephone,  
Shipboard Radio, Private Stations)  
MARS . . . . . . . . . . . . . . . . . . . . .Military Affiliate Radio System  
MED . . . . . . . . . . . . . . . . . . . . . . Emergency/Medical Services  
MIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U.S. Military  
MOV . . . . . . . . . . . . . . . . . . . . . . Motion Picture/Video Industry  
NEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . New Mobile Narrow  
NEWS . . . . . . . . . . . . . . . .Relay Press (Newspaper Reporters)  
OIL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Oil/Petroleum Industry  
POL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Police Department  
PUB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Public Services  
(Public Safety, Local Government, Forestry Conservation)  
PSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Public Safety  
53  
PTR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Private Trunked  
ROAD . . . . . . . . . . . . . . . . . . . . Road & Highway Maintenance  
RTV . . . . . . . . . . . . . . . . . .Radio/TV Remote Broadcast Pickup  
TAXI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Taxi Services  
TELB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mobile Telephone  
. . (Aircraft, Radio Common Carrier, Landline Companies)  
TELC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cordless Phones  
TELM. . . . . . . . . . . . . . . . . . . . . . . . . . Telephone Maintenance  
TOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tow Trucks  
TRAN. . . . . . . . . . . . . . . . . . . . . . . . . . .Transportation Services  
. . . . . . . . . .(Trucks, Tow Trucks, Buses, Railroad, Other)  
TSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Trunked Systems  
TVn . . . . . . . . . . . . . . . . . . . . . . . . . . . FM-TV Audio Broadcast  
USXX. . . . . . . . . . . . . . . . . . . . . . . . . . . Government Classified  
UTIL. . . . . . . . . . . . . . . . . . . . . . . . . . . . Power & Water Utilities  
WTHR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Weather  
VERY HIGH FREQUENCY (VHF)  
VHF Low Band(29–50 MHzin 5 kHz steps)  
29.000–29.700 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HAM  
29.900–30.550 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL  
30.580–31.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, PUB  
32.000–32.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL  
33.020–33.980 . . . . . . . . . . . . . . . . . . . . . . . . . BUS, IND, PUB  
34.010–34.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL  
35.020–35.980 . . . . . . . . . . . . . . . . . . . BUS, PUB, IND, TELM  
36.000–36.230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL  
36.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil Spill Cleanup  
36.270–36.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL  
37.020–37.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PUB, IND  
38.000–39.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL  
39.020–39.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PUB  
40.000–42.000 . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL, MARI  
42.020–42.940 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . POL  
42.960–43.180 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND  
43.220–43.680 . . . . . . . . . . . . . . . . . . . . . . . . TELM, IND, PUB  
43.700–44.600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TRAN  
44.620–46.580 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . POL, PUB  
46.600–46.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, TELC  
47.020–47.400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PUB  
47.420 . . . . . . . . . . . . . . . . . . . . . . . . . . . . American Red Cross  
47.440–49.580 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, PUB  
49.610–49.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MIL, TELC  
6-Meter Amateur Band—(50–54 MHz)  
50.00–54.00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HAM  
Aircraft Band(108–137 MHz)  
108.00–121.490 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AIR  
121.500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AIR Emergency  
121.510–136.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AIR  
U.S. Government Band (137–144 MHz)  
137.000–144.000 . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL  
2-Meter Amateur Band (144–148 MHz)  
144.000–148.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HAM  
VHF High Band (148–174 MHz)  
148.050–150.345 . . . . . . . . . . . . . . . . . . . . . . . CAP, MAR, MIL  
150.775–150.790 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED  
150.815–150.980 . . . . . . . . . . . . . . . . . TOW, Oil Spill Cleanup  
54  
150.995–151.475 . . . . . . . . . . . . . . . . . . . . . . . . . .ROAD, POL  
151.490–151.955 . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, BUS  
151.985 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELM  
152.0075 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED  
152.030–152.240 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB  
152.270–152.480 . . . . . . . . . . . . . . . . . . . . . . . IND, TAXI, BUS  
152.510–152.840 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB  
152.870–153.020 . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, MOV  
153.035–153.725 . . . . . . . . . . . . . . . . . . . . . . . .IND, OIL, UTIL  
153.740–154.445 . . . . . . . . . . . . . . . . . . . . . . . . . . .PUB, FIRE  
154.490–154.570 . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, BUS  
154.585 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil Spill Cleanup  
154.600–154.625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS  
154.655–156.240 . . . . . . . . . . . . . . . . MED, ROAD, POL, PUB  
156.255–157.425 . . . . . . . . . . . . . . . . . . . . . . . . . . . OIL, MARI  
157.450 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED  
157.470–157.515 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TOW  
157.530–157.725 . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, TAXI  
157.740 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS  
157.770–158.100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB  
158.130–158.460 . . . . . . . . . . . . . BUS, IND, OIL, TELM, UTIL  
158.490–158.700 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB  
158.730–159.465 . . . . . . . . . . . . . . . . . . . . . POL, PUB, ROAD  
159.480 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .OIL  
159.495–161.565 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TRAN  
161.580–162.000 . . . . . . . . . . . . . . . . . . . . . . .OIL, MARI, RTV  
162.0125–162.35 . . . . . . . . . . . . . . . . . . . . .GOVT, MIL, USXX  
162.400–162.550 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . WTHR  
162.5625–162.6375 . . . . . . . . . . . . . . . . . . .GOVT, MIL, USXX  
162.6625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED  
162.6875–163.225 . . . . . . . . . . . . . . . . . . . .GOVT, MIL, USXX  
163.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED  
163.275–166.225 . . . . . . . . . . . . . . . . . . . . .GOVT, MIL, USXX  
166.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, RTV, FIRE  
166.275–169.400 . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, BIFC  
169.445–169.505 . . . . . . . . . . . . . . . . . Wireless Mikes, GOVT  
169.55–169.9875 . . . . . . . . . . . . . . . . . . . . .GOVT, MIL, USXX  
170.000–170.150 . . . . . . . . . . . . . . . . BIFC, GOVT, RTV, FIRE  
170.175–170.225 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT  
170.245–170.305 . . . . . . . . . . . . . . . . . . . . . . . Wireless Mikes  
170.350–170.400 . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL  
170.425–170.450 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BIFC  
170.475 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PUB  
170.4875–173.175 . . . . . . . . . . . . GOVT, PUB, Wireless Mikes  
173.225–173.5375 . . . . . . . . . . . . . . . MOV, NEWS, UTIL, MIL  
173.5625–173.5875 . . . . . . . . . . . . . MIL Medical/Crash Crews  
173.60–173.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT  
ULTRA HIGH FREQUENCY (UHF)  
U. S. Government Band (406–420 MHz)  
406.125–419.975 . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, USXX  
70-cm Amateur Band (420–450 MHz)  
420.000–450.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HAM  
Low Band (450–470 MHz)  
450.050–450.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RTV  
451.025–452.025 . . . . . . . . . . . . . . . . . .IND, OIL, TELM, UTIL  
452.0375–453.00 . . . . . . . . . . .IND, TAXI, TRAN TOW, NEWS  
453.0125–454.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . PUB, OIL  
454.025–454.975 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB  
455.050–455.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RTV  
457.525–457.600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS  
55  
458.025–458.175 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED  
460.0125–460.6375 . . . . . . . . . . . . . . . . . . . . FIRE, POL, PUB  
460.650–462.175 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS  
462.1875–462.450 . . . . . . . . . . . . . . . . . . . . . . . . . . .BUS, IND  
462.4625–462.525 . . . . . . . . . . . . . . . . . IND, OIL, TELM, UTIL  
462.550–462.925 . . . . . . . . . . . . . . . . . . . . . . . . . . .GMR, BUS  
462.9375–463.1875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED  
463.200–467.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS  
FM-TV Audio Broadcast, UHF Wide Band (470–512 MHz)  
(Channels 14 through 69 in 6 MHz steps)  
475.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 14  
481.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 15  
487.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 16  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
511.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 20  
Note: Some cities use the 470–512 MHz band for land/  
mobile service.  
Conventional Systems Band – Locally Assigned  
851.0125–855.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CSB  
Conventional/Trunked Systems Band – Locally Assigned  
856.0125–860.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CTSB  
Trunked Systems Band – Locally Assigned  
861.0125–865.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TSB  
Public Safety Band – Locally Assigned  
866.0125–868.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PSB  
33-Centimeter Amateur Band (902–928 MHz)  
902.0000–928.0000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HAM  
Private Trunked  
935.0125–939.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PTR  
General Trunked  
940.0125–940.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GTR  
56  
FREQUENCY CONVERSION  
The tuning location of a station can be expressed in fre-  
quency (kHz or MHz) or in wavelength (meters). The fol-  
lowing information can help you make the necessary  
conversions.  
1 MHz (million) = 1,000 kHz (thousand)  
To convert MHz to kHz, multiply the number of mega-  
hertz by 1,000:  
9.62 (MHz) x 1000 = 9620 kHz  
To convert from kHz to MHz, divide the number of kilo-  
hertz by 1,000:  
2780 (kHz) ÷ 1000 = 2.780 MHz  
To convert MHz to meters, divide 300 by the number of  
megahertz:  
300 ÷ 7.1 MHz = 42.25 meters  
57  
TROUBLESHOOTING  
If you have problems, here are some suggestions that  
might help. If they do not, take your scanner to your  
local RadioShack store for assistance.  
POSSIBLE  
CAUSE  
PROBLEM  
REMEDY  
Scanner is on  
SQUELCH is not  
Adjust SQUELCH  
but will not scan. correctly  
adjusted.  
counterclockwise.  
Only one chan-  
nel or no chan-  
nels are stored.  
Store frequencies  
into more than one  
channel.  
Scanner is totally No power.  
inoperative.  
Check the battery  
pack or make sure  
the scanner is  
plugged into a work-  
ing AC or DC outlet.  
Recharge the bat-  
tery pack.  
The AC adapter/  
charger or DC  
adapter is not  
connected.  
Be sure the  
adapter’s barrel  
plug is fully plugged  
into the EXT. PWR  
jack.  
The scanner’s  
display dims or  
the scanner  
The battery pack  
is not correctly  
installed.  
Make sure the bat-  
tery pack is installed  
properly.  
sounds a tone  
every 15 30  
seconds.  
The battery pack  
is weak.  
Recharge the bat-  
tery pack.  
Keypad does not The keylock  
To turn off the key-  
work.  
function is acti-  
vated.  
lock, press LOCK/  
until  
dis-  
appears from the  
display.  
appears.  
The battery pack  
is weak.  
Recharge the bat-  
tery pack.  
Poor or no  
reception.  
Battery pack is  
weak or com-  
pletely dis-  
Check the battery  
pack, make sure the  
scanner is plugged  
into a working AC or  
DC outlet.  
charged.  
58  
POSSIBLE  
CAUSE  
PROBLEM  
Poor or no  
REMEDY  
An antenna is  
Make sure an  
reception (con-  
tinued)  
not connected or antenna is con-  
connected incor- nected to the scan-  
rectly.  
ner.  
Programming  
error.  
Reprogram the fre-  
quency correctly,  
including the deci-  
mal point.  
Error  
appears.  
In the scan  
Programmed fre- Avoid programming  
mode, the scan-  
ner locks on fre-  
quencies that  
have an unclear  
transmission.  
quencies are the  
same as “birdie”  
frequencies.  
frequencies listed  
under “Birdie Fre-  
quencies” on  
Page 51 or only lis-  
ten to them manu-  
ally.  
Scanner will not  
track a trunked  
system.  
Thetransmission Scan another trans-  
might not use a  
system that can  
be tracked by  
your scanner.  
mission.  
The data fre-  
quency is miss-  
ing.  
Find the data fre-  
quency (see “Pro-  
gramming Trunked  
Frequencies” on  
Page 34).  
The system you  
are trying to  
Set the scanner to  
receive Type I  
track is a Type I  
system, and the  
scanner is set to  
trunked frequen-  
cies. See “Scan-  
ning Type I and  
scan Type II sys- Hybrid Trunked Sys-  
tems.  
tems” on Page 44.  
Scanner will not  
stop while scan-  
ning a scan list.  
No IDs have  
been stored.  
Store one or more  
IDs (see “Scan  
Lists” on Page 41).  
The IDs you  
have stored are  
not active.  
Scan another trans-  
mission.  
59  
POSSIBLE  
CAUSE  
PROBLEM  
REMEDY  
Scanner will not  
acquire a data  
channel.  
is not  
Adjust squelch for  
trunk tracking. See  
“Setting Squelch for  
the Trunk Tracking  
Mode” on Page 33.  
SQUELCH  
correctly  
adjusted for  
trunk tracking.  
The frequency  
used for the data  
channel is miss-  
ing.  
Add the frequency  
used for the data  
channel to the fre-  
quency list. (see  
“Programming  
Trunked Frequen-  
cies” on Page 34).  
Missing replies  
to conversations. are trying to  
track is a Type I  
The system you  
Set the scanner to  
receive Type I  
trunked frequen-  
cies. See “Scan-  
ning Type I and  
system, and the  
scanner is set to  
scan Type II sys- Hybrid Trunked Sys-  
tems.  
tems” on Page 44.  
The selected  
fleet map is  
incorrect.  
Try another preset  
fleet map or pro-  
gram your own fleet  
map (see “Scan-  
ning Type I and  
Hybrid Trunked Sys-  
tems” on Page 44).  
Not all of the  
trunk’s frequen-  
cies have been  
entered.  
Enter all of the  
trunk’s frequencies.  
Channel activity  
indicators are  
flashing but no  
sound is heard.  
Thetransmission Scan for another  
might be a pri-  
vate or tele-  
phone  
transmission.  
interconnect call.  
The scanner  
does not scan  
these types of  
transmissions.  
The ID shown is  
not active.  
Wait for the ID to  
become active, or  
scan another trans-  
mission.  
60  
CARE AND MAINTENANCE  
Your RadioShack PRO-90 300-Channel TrunkTracker  
Scanner is an example of superior design and crafts-  
manship. The following suggestions will help you care  
for your scanner so you can enjoy it for years.  
Keep the scanner dry. If it gets wet, wipe it  
dry immediately. Liquids can contain min-  
erals that can corrode the electronic cir-  
cuits.  
Use only rechargeable batteries of the rec-  
ommended size and type. Always remove  
old and weak batteries. They can leak  
chemicals that destroy electronic circuits.  
Handle the scanner gently and carefully.  
Dropping it can damage circuit boards and  
cases and can cause the scanner to work  
improperly.  
Use and store the scanner only in normal  
temperature environments. Temperature  
extremes can shorten the life of electronic  
devices, damage batteries, and distort or  
melt plastic parts.  
Keep the scanner away from dust and dirt,  
which can cause premature wear of parts.  
Wipe the scanner with a damp cloth occa-  
sionally to keep it looking new. Do not use  
harsh chemicals, cleaning solvents, or  
strong detergents to clean the scanner.  
Modifying or tampering with the scanner’s internal com-  
ponents can cause a malfunction, invalidate your scan-  
ner’s warranty and void your FCC authorization to  
operate it. If your scanner is not operating as it should,  
take it to your local RadioShack store for assistance.  
61  
SPECIFICATIONS  
Frequency Coverage: ........ 29–54 MHz (in 5 kHz steps)  
108–136.9875 MHz (in 12.5 kHz steps)  
137–174 MHz (in 5 kHz steps)  
406–512 MHz (in 12.5 kHz steps)  
806.0000–823.9875 MHz (in 12.5 kHz steps)  
849.0125–868.9875 MHz (in 12.5 kHz steps)  
894.0125–956.0000 MHz (in 12.5 kHz steps)  
Channels ................................................................. 300  
Number of Banks ....................................................... 10  
Sensitivity (AM/FM):  
NFM: 20 dB S/N at 3 kHz deviation):  
29–54 MHz ................................................... 0.5 µV  
137–174 MHz ............................................... 0.4 µV  
406–512 MHz ............................................... 0.4 µV  
806–956 MHz ............................................... 0.6 µV  
AM: 20 dB S/N at 60% modulation):  
108–136.9875 MHz ...................................... 1.5 µV  
Spurious Rejection (at 40.84 MHz) ...................... 50 dB  
Selectivity:  
10 kHz ........................................................... –6 dB  
15 kHz ......................................................... –50 dB  
IF Rejection (at 162.4 MHz) ................................. 80 dB  
Operating Temperature .. –4 to 140 F (–20 to 60 C)  
°
°
°
°
Scan Speed:  
Normal ................................. 100 Channels/Second  
Service ........................... 100 Frequencies/Second  
Search Speed:  
Normal ....................................... 100 Steps/Second  
Hypersearch .............................. 300 Steps/Second  
Priority Sampling .......................................... 2 Seconds  
Delay Time ................................................... 2 Seconds  
IF Frequencies ... 380.7 MHz, 10.85 MHz, and 450 kHz  
Antenna Impedance ........................................ 50 Ohms  
Audio Output .................... 180 mW nominal into 8 Ohm  
Internal speaker  
38 mW nominal into 32 Ohm Stereo Headphones  
9 mW nominal into 64 Ohm Earphone  
Built-in Speaker Size .......................... 11/2-inch (36 mm)  
62  
Power Requirements ......... Rechargeable Battery Pack  
(4.8 VDC), or  
AC Adapter/Charger or  
Optional DC Adapter (12 VDC 200 mA)  
Current Drain:  
Squelched .................................................... 70 mA  
Full Output .................................................. 180 mA  
Dimensions (HWD) ..................... 6 × 21/3 × 111/16 Inches  
(153 × 63.5 × 43 mm)  
Weight .................................................................... 11 oz  
(310 g)  
Specifications are typical; individual units might vary.  
Specifications are subject to change and improvement  
without notice.  
63  
Limited One-Year Warranty  
This product is warranted by RadioShack against manufacturing de-  
fects in material and workmanship under normal use for one (1) year  
from the date of purchase from RadioShack company-owned stores  
and authorized RadioShack franchisees and dealers. EXCEPT AS  
PROVIDED HEREIN, RadioShack MAKES NO EXPRESS WARRAN-  
TIES AND ANY IMPLIED WARRANTIES, INCLUDING THOSE OF  
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PUR-  
POSE, ARE LIMITED IN DURATION TO THE DURATION OF THE  
WRITTEN LIMITED WARRANTIES CONTAINED HEREIN. EXCEPT  
AS PROVIDED HEREIN, RadioShack SHALL HAVE NO LIABILITY  
OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON  
OR ENTITY WITH RESPECT TO ANY LIABILITY, LOSS OR DAM-  
AGE CAUSED DIRECTLY OR INDIRECTLY BY USE OR PERFOR-  
MANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH  
OF THIS WARRANTY, INCLUDING, BUT NOT LIMITED TO, ANY  
DAMAGES RESULTING FROM INCONVENIENCE, LOSS OF TIME,  
DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT,  
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN  
IF RadioShack HAS BEEN ADVISED OF THE POSSIBILITY OF  
SUCH DAMAGES.  
Some states do not allow the limitations on how long an implied war-  
ranty lasts or the exclusion of incidental or consequential damages, so  
the above limitations or exclusions may not apply to you.  
In the event of a product defect during the warranty period, take the  
product and the RadioShack sales receipt as proof of purchase date  
to any RadioShack store. RadioShack will, at its option, unless other-  
wise provided by law: (a) correct the defect by product repair without  
charge for parts and labor; (b) replace the product with one of the  
same or similar design; or (c) refund the purchase price. All replaced  
parts and products, and products on which a refund is made, become  
the property of RadioShack. New or reconditioned parts and products  
may be used in the performance of warranty service. Repaired or re-  
placed parts and products are warranted for the remainder of the orig-  
inal warranty period. You will be charged for repair or replacement of  
the product made after the expiration of the warranty period.  
This warranty does not cover: (a) damage or failure caused by or at-  
tributable to acts of God, abuse, accident, misuse, improper or abnor-  
mal usage, failure to follow instructions, improper installation or  
maintenance, alteration, lightning or other incidence of excess voltage  
or current; (b) any repairs other than those provided by a RadioShack  
Authorized Service Facility; (c) consumables such as fuses or batter-  
ies; (d) cosmetic damage; (e) transportation, shipping or insurance  
costs; or (f) costs of product removal, installation, set-up service ad-  
justment or reinstallation.  
This warranty gives you specific legal rights, and you may also have  
other rights which vary from state to state.  
RadioShack Customer Relations, Dept. W,  
100 Throckmorton St., Suite 600, Fort Worth, TX 76102  
We Service What We Sell  
3/97  
RadioShack  
A Division of Tandy Corporation  
Fort Worth, Texas 76102  
UBZZ01271ZZ  
Printed in the Philippines  
8A7  

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