20-521 .fm Page 1 Wednesday, August 4, 1999 3:32 PM
Owner’s Manual
Cat. No. 20-521
PRO-91 150-Channel
Handheld Trunking Scanner
Please read before using this equipment.
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FEATURES
Your RadioShack PRO-91 150-Channel Handheld
Trunking Scanner is one of a new generation of scanners designed to track Motorola Type I and Type II
(such as Smartnet and Privacy Plus) and hybrid analog trunking systems, which are extensively used in
many 800 MHz communicat ion systems.
Trunking communications systems let a large group of
2-way radio users (or even different groups of 2-way radio users) efficiently use a large range of frequencies.
Instead of selecting a specific frequency for a transmission, the user sim ply selec ts a talk g r ou p. The t run ki ng
system automatically transmits the call on the first available frequency, and also sen ds (on a dif ferent frequency called a data channel) a code that uniquely identifies
that transmission.
Since the trun king sys tem m ight send a c all an d its re sponse on di fferent fr eq ue ncies, it is difficult to l ist e n t o
trunked co mmunicat ions using a reg ular scanne r. The
PRO-91 l ets you select and mo nitor the data channe l
frequency se nt w it h a 2-w ay rad io transmission, so you
can he ar the ca ll and res ponse for that u se r and more
easily “follow” the conversation.
The scanner also lets you scan conventional transmissions, and is preprogrammed with service banks for
convenience. By pressing a single button, you can
quickly search those frequencies most commonly
used by public service and other agencies without tedious and complicat ed programming.
This sc an n er gives y o u d ir ec t ac c es s to ov er 30 ,00 0 e xciting frequencies, including police and fire departments, ambulance services, and amateur radio
services, and you can change your selection at any
time.
Your scanner also has th ese special features:
Triple-Conversion Circuitry
— virtually eliminates
any interference from IF (intermediate frequency) images, so you hear only the selected frequency.
RadioShack is a registered trademark used by Tandy Corporation.
Hypersearch and Hyperscan are trademarks used by
All Rights Reserved.
Tandy Corporation.
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Five Channel-Storage Banks — you can store up to
30 channels in each of 5 different banks to group channels so you can more easily identify calls.
Five Scan Lists — you can store up to 50 trunking IDs
in each trunk tracking bank.
Two-Second Scan Delay — delay s scanning for about
2 seconds before moving to another channel, so you
can hear mor e replies that are made on the same channel.
Lock-Out Functi on — lets you set your scanner to sk ip
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 (5 in all) and then have the scanner check
that channel every 2 seconds while it scans the bank,
so you don't miss transmissions on those channels.
Five Service Banks — frequencies are preset in separate police (fire/emergency), aircraft, ham, marine, and
weather banks, to make it easy to locate specific types
of calls.
Hypersearch — lets you set the scanner to search at
up to 300 steps per second. The normal search speed
is 100 steps per second.
Hyperscan — the scanner automatically scans up to
50 channels per second in frequency bands with 5 kHz
steps, to help you quickly find interesting broadcasts.
Key Lock — lets you lock the scanner's keys to help
prevent accidental changes to the scanner's programming.
Data Signal Skip — lets you set the scanner to skip
non-modulated or data signals (such as fax or modem
transmissions) during searches. This lets the scanner
avoid non-voice signals, making a search faster.
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 si tuations.
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Flexible Antenna with BNC Connector — provides
excellent reception and is designed to help prevent antenna breakage. Or, you can connect an external antenna.
Moni tor Memori es — let y o u tem p orarily st ore up t o 5
frequencies or IDs.
Memory Backup — keeps the frequencies stored in
memory for an extended time if the PRO-91 loses power.
Three Power Options — let you power the scanner
using internal batteries, external AC power using an
optional AC a dapter/charger, or DC power using an optional DC cigarette-l ighter power cable.
Key Confirmation Tones — the scanner sounds a
tone when you perform an operation correctly, and an
error tone if you make an error.
Battery Save — saves battery power when the scanner does not detect any transmissions for more than 5
seconds when a channel is manually selected.
Battery Low Alert — warns you when battery power
gets low.
Your scanner can recei ve these bands:
Frequency
Range (MHz)
Step
(kHz)
Transmission
29–29.7510-Meter Ham Band
29.7–505VHF Lo
50–5456-Meter Ham Band
108–136.975012.5Aircraft
137–1445Military Land Mobile
144–14852-Meter Ham Band
148–1745VHF Hi
406–42012.5Federal Government
420–45012.570-cm Ham Band
450–47012.5UHF Standard Band
470–51212.5UHF “T” Band
806–95612.5Public Service
“800” Band, except
cellular band
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We recommend you record your scanner’s serial number here. The number is on the back panel.
Serial Number: ____ _______________________
FCC NOTICE
Your scanner might cause radio or TV interference
even when it is operating properly. To deter mine 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 different electrical circuit from the receiver
• Contact your loca l RadioShack store for hel p
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 includin g police and fire depar tmen ts, ambulance services, government agencies, private
companies, amateur radio services, military operations,
pager services, and wireline (telephone and telegraph)
service providers. It is legal to listen to almost every
transmission your scanner can receive. However, there
are some transmissions you should never intentionally
listen to. These include:
• Telephone conversations (cellular, cordless, or
other private means of telephone signal transmission)
• Pager transmissions
• Any scrambled or encrypted transmissions
According to the Electronic Communications Privacy
Act (ECPA), you are subject to fines and possible imprisonment f or intentionally listen ing to, using, or divulging the contents of such a transmission unless you
have the consent of a party to the communication (unless such activ ity is otherwise ill egal).
This scanner is designed to prevent reception of illegal
transmissions, in compliance with the law which re-
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quires that scanners be manufact ured in such a way as
to not be easily modifiable to pick up those transmissions. Do not open your scanner's case to make any
modifications that could allow it to pick up transmissions that it is not legal to listen to. Doing so could subject you to legal penal ties.
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PREPARATION
POWER SOURCES
You can power your scann er fr om any of thre e sou rces:
• Internal batteries (not suppli ed)
• Standard AC power (usin g an opti onal AC adapt er)
• Vehicle battery power (using an optional DC
adapter)
Using Internal Batteries
You can power your scanner using four AA batteries.
For the longest operation and best performance, we
recommend alkaline batteries (such as Cat. No. 23-
552).
You can also use four rechargeable nickel-cadmium
batteries (Cat. No. 23-125). Before you use nickel-cadmium batteries, you must charge them (see “Charging
Nick el-Ca d mium Batt eries ” on P age 11).
Follow these steps to install batteries.
1. Turn
2. Slide up and hold the tab on the back of the scan-
VOLUME /OFF
to make sure the power is turned off.
ner, then pull up the battery compartment cover.
counterclockwise until it clicks
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3. If you are installing alkaline batteries, use a
pointed object such as a pencil to set
JACK NI-CD
ALKALINE
. Or, if you are inst alling nickel-cadmium
batteries, s et i t to
inside the compartment to
NI-CD
.
ALKALINE
Warning:
NI-CD
to
Never set
if you are install ing non-rechar geable bat-
ALKALINE JACK NI-CD
teries. Non-rechar geable batteries can get hot or
explode if you try to rec harge them.
4. Install two batteries in the compartment and two in
the cover as indicated by the polarity symbols (+
and –) marked inside those locations.
Cautions:
• Use only fresh bat teries of the required size and
recommended type.
• Always remove old or weak batteries. Batteries
can leak chemicals that destroy electronic circuits.
• Do not mix old and new batteries, different
types of batteries (standard, alkaline, or
rechargeable), or rechargeable batteries of different capacit ies.
5. Replace the cover.
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If
BATT.Lo
flashes and the scanner beeps every 15
seconds, replace (standard/alkaline) or recharge (rechargeable nickel-cadmium) the batteries.
Caution: Always dispose of old batteries promptly and
properly. Do not bury or burn them.
Charging Nickel-Cadmium Batteries
The scanner has a built-in circuit that lets you recharge
nickel-cadmium batteries while they are in the scanner.
To charge the batteries, set
CD
to
, install the nickel-cadmium batteries in the
NI-CD
scanner, and connect an external AC or DC adapter to
the scanner’s
POWER
Page 12 or “Using Vehicle Battery Power” on Page 13).
Warning: Do not connect either adapter to the scanner
if non-rechargeable batteries (such as alkaline batteries) are ins tal led in the scan ner and
is set to
NI-CD
NI-CD
switch’s position. Non-rechargeable batteries will get
hot and can even explode if you try to recharge them.
Before you use nickel-cadmium batteries for the first
time, charge them at least 24 hour s to bring them to a
full charge.
ALKALINE JACK NI-
jack (see “Using AC Power” on
ALKALINE JACK
, or you are unsure of the
Discharged batteries take about 10 to 18 hours to fully
recharge. If you use the scanner while the batteries are
charging, char ging takes longer.
Notes:
• Nickel-cadmium batteries last longer and deliver
more power if you occasionally let them fully discharge. To do this, simply use the scanner until it
beeps every 15 seco nds and
BATT.Lo
flashes.
• To prevent damage to nickel-cadmium batteries,
never charge them in an area where the temperature is above 113°F or below 40°F.
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Important: At the end of a rechargeable battery’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 AC Power
You can power the scanner from a standard AC outlet
using an optional AC adapter (such as Cat. No. 273-
1665).
Warning: Do not use an AC adapter’s polarized plug
with an extension cord, receptacle, or other outlet unless the blades can be fully inserted to prevent blade
exposure.
Cautions:
• The recommended AC adapter supplies 9 volts
and delivers at least 300 milliamps. It has a barrel
plug with a c enter negative tip that correctly fits the
scanner’s
POWER
jack. Using an adapter that
does not meet these specifications could dam age
the scanner or the adapter.
• To protect your scanner and AC adapter, always
plug the adapter into the scanner before you plug
it into the AC outlet, and always unplug the
adapter from the AC outlet before you unplug it
from the scanner.
• If batteries are installed, make sure the battery
switch inside the battery compartment is set to the
correct position (see “Using Internal Batteries” on
Page 9).
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1. Turn
VOLUME/OFF
counterclockwise until it clicks
to make sure the power is turned off.
2. Plug the adapter’s 3.4 mm outside diameter/1.3
mm inside diameter barrel plug into your scanner’s
POWER
jack.
3. Plug the other end of the adapter into a standard
AC outlet.
If rechargeable batteries are installed and
JACK NI-CD
is set to
NI-CD
, the adapter powers the
ALKALINE
scanner and recharges the batteries at the same time.
Using Vehicle Battery Power
You can power the scanner from your vehicle’s battery
power using an optional DC adapter such as Cat. No.
270-1560.
Cautions:
• The recommended DC adapter supplies 9 volts
and delivers at least 300 milliamps. It has a barrel
plug with a center negati ve tip that correctly fits the
scanner’s
POWER
jack. Using an ad apter that does
not meet these specifications could damage the
scanner or t he adapter.
• To protect your vehicle’s electrical system, always
plug the adapter into the scanner before you plug it
into your vehicle’s ci garette-lighter socket. Alwa ys
unplug the adapter from the vehicle’s cigarettelighter socket before you unplug it from the scanner.
• If batteries are installed, make sure the battery
switch inside the battery compartment is set to the
correct position (see “Using Internal Batteries” on
Page 9).
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1. Turn
VOLUME/OFF
counterclockwise until it clicks
to make sure the power is turned off.
2. Set the adapter’s voltage switch to 9V.
3. Connect the 3. 4 mm outer diameter/1.3 mm inner
diameter tip to the adapter cord, matching TIP to –.
4. Plug the adapter’s barrel plug into your scanner’s
POWER
jack.
5. Plug the other end of the adapter into your vehicle’s cigarette-lighter socket.
If you have installed rechargeable batteries and
ALKALINE JACK NI-CD
set
to
NI-CD
, the
adapter powers the scanner and recharges the
batteries at the same time.
Note:
If the scanner does not operate properly when
you use a DC adap ter, unplug the adapter from the cigarette-lighter socket and clean the socket to remove
ashes and debris.
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CONNECTING THE ANTENNA
Follow these st eps to attach the supplied flexible antenna to the connector on the top of your scanner.
1. Align the slots around the antenna’s c onnector with
the tabs on the scanner’s BNC connector.
2. Slide the antenna’s connector down over the scanner’s connector and rotate the antenna connector’s
outer ring clockwise until it locks into place.
Connecting an Optional Antenna
The scanner’s BNC connector makes it easy to connect
a variety of optional antennas (such as an external mobile antenna or outdoor base station antenna). Your local RadioShack sto re sel ls a variety of antennas.
Note:
Always use 50-ohm coaxial cable, such as RG58 or RG-8, to connect an outdoor antenna. If the distance from the scanner to the antenna is over 50 feet,
use RG-8 low-loss dielectric coax ial cable. If your antenna’s cable does not have a BNC connector, your local RadioShack store carries a variety of BNC
adapters.
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CONNECTING AN EARPHONE/
HEADPHONES
For private listening, you can plug an earphone or
mono headphones (such as Cat. No. 33-178 or 20-
210) into the jack on top of your scanner. This automatically disconnects the internal spea ker.
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 permanent hearing loss .
• Set the volume to the lowest setting before you
begin listening. After you begin listening, adjust
the volume to a comfortable level.
• Once you set the volume, do not increase it. Over
time, your ears adapt to the volume level, so a volume level that does not cause discomfort might
still damage your hearing.
Traffic Safety
Do not use an earphone or headphones with your
scanner when operating a motor vehicle in or near traffic. Doing so can create a traffi c hazard and could be illegal in some areas.
If you use an earphone or 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.
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CONNECTING AN EXTENSION
SPEAKER
In a noisy area, an extension speaker (suc h 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
scanner easier to use when you are on the go. Use a
Phillips screwdriver and the supplied screws to attach
the belt clip to the scanner. Then sl ide the clip over your
belt or waistband.
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ABOUT YOUR SCANNER
Once you under stand a few simple term s we use in this
manual and familiarize yourself with your scanner’s
features, you can put the scanner to work for you. You
simply determin e the ty pe of comm unications you want
to receive, then set the scanner to scan those communications.
frequency
A
pressed in kHz or MHz). To find active frequencies,
you use the
Besides searching within a frequency range you determine, you can also search your scanner’s
banks
categorized by type of service. For example, many amateur radio frequencies ar e located in the
bank.
When you find a frequency, you can store it into a programmable memory location called a
nels are grouped into
scanner has 5 channel-storage banks of 30 channels
each). You can then
to see if there is activity on the frequencies stored
there.
is the tuning location of a station (ex-
search
functio n.
service
. Service banks are preset gr oups of frequencie s
HAM2
service
channel
channel-storage banks
scan
the channel-storage banks
. Chan-
. (This
Or, when you f ind a frequency, you can store it into a
temporary memory location called a monitor memory
until you decide whether or not to move it to a channel.
Just keep in mind — you
channels.
You can also use your scanner to track trunked transmissions (see “Trunk Tracking” on Page 39).
18
search
frequencies and
scan
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A LOOK AT THE KEYPAD
Your scanner’s keys might seem confusing at first, but
this information should help you under stand each key’s
function.
HOLD
— holds the frequency search; holds on the cur-
rent ID in the trunk tracking mode.
SCAN
— scans through the st ored channels.
MAN (ma nual)
— stops scanning and lets you directly
enter a channel number or frequency.
PROG (program)
— stores frequencies into channels;
programs the trunking frequency, fleet map, and ID
memories.
TRUNK
—
switches between conventional and trunk
tracking.
LIMIT/SRC (search)
— starts a limit search; searches a
specified f requency range to find frequencies; searches
for another active ID while trunk tracking.
DATA
— turns on or off the data signal skip feature;
moves through menu settings while trunk tracking.
PRIORITY/H/S (Hypersearch)
;
the priority fe ature
L-OUT/S/S (search skip)
turns on and off Hypersearch.
—
sets and turns on and off
— lets you lock out selected
channels or skip specified frequencies during a search;
lets you lock out a selected ID while trunk tracking.
KEYLOCK/
— locks the keypad to prevent accidental program changes; turns on the display light for 15
seconds.
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DELAY
— programs a 2-second delay for the selected
channel, a l imit search, or each service scan; programs
a 5-second del ay while trunk tracking.
t — searches down through a selected frequency
range during a frequency search; selects options during program operation; c hanges the ID location number
while trunk tracking.
s — searches up through a selected frequency range
during a frequency search; selects options during program operation; changes the ID location number while
trunk tracking.
Number Keys — each key has a single-digit label and a
range of numbers. The single digits are used to enter a
channel, frequency, service bank, or ID number. The
range of numbers (31–60, for example) are use d to enter the channels that make up a memory bank.
MON/CLEAR/
ories during a search; recalls frequencies from monitor
memories when programming a channel; stores
searched IDs into monitor memories or selects options
while trunk tracking; enters a decimal point or clears an
incorrect entry.
SVC (service)/E (enter )
enters frequencies into channels.
— stores frequencies into monitor mem-
•
— starts a service bank search;
A LOOK AT THE DISPLAY
The display has in dicators that show the scanner’s current operating status. A good look at the display will
help you understand how your scanner operates.
— appears with numbers (1–5). The numbers
BANK
show which channel-storage banks are turned on for
scanning.
TRUNK
tracking.
20
— appears when the scanner is set for trunk
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(trunking channe l activi ty bars) — each repres ents a
received trunking frequency or a data frequency while
trunk tracking (s ee “Chann el Acti vity Bars” on Page47).
— appears when the weather service band is se-
-1-
lected.
— appears when the amateur radio service band
-2-
is selected.
— appears when the marine service band is se-
-3-
lected.
— appears when the air service band is sel ected.
-4-
— appears when the police service band is sel ect-
-5-
ed.
— appears when a priority channel is selected.
P
BATT. Lo
DATA
SCAN
LIST
tracking. Numbers with a bar under them show which
ID scan list banks are turned on for scanni ng.
SVC
SEARCH
search, and blinks when you monitor IDs (see “Monitoring IDs” on Page 46).
PRI
HOLD
or when the scanner is holding during a sear ch.
DLY
L/O
frequency you locked out.
K/L
— blinks when the scanner’s battery is low.
— appears when the data skip fun cti on is active.
— appears when you scan channels.
— appears with numbers (1–5) during trunk
— appears during a servi ce search.
— appears during a limit search and ID
— appears when the priority feature is turned on.
— appears when you manually select a channel
— appears when you program a delay.
— appears when you manuall y select a channel or
(keylock) — appea rs when you lock the keypad.
Error
— appears when you make an entry error.
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— appears during sear ch modes or when you
MON
select a monitor memory. The number to the right of
this indicator shows the current monitor memory number.
— appears when you press
MAN
— appears while you store a frequency into a
PGM
channel, while you enter a frequency range during a
limit search, or when you program trunking frequencies, fleet maps, or ID memories while trunk tracking.
HYPER
is active during a direct or limit search.
t and s
search, indicating the search direction.
S
(during convent ional scanning only) .
— appears while Hyper scan or Hyper search
— appears during a limit, direct, or service
— appears when the battery save function is active
MAN
.
UNDERSTANDING BANKS
Service Banks
The scanner is preprogrammed wi th all the fr equencies
allocated to the weather, ham, marine, air craft, and police (fire/emergency) services. This is handy for quickly
finding active frequencies instead of doing a limit
search (see “Servi ce Bank Search” on Page 28).
Channel Storage Banks
To make it easier to identify and select the channels
you want to listen to, channels are divided into 5 banks
of 30 channels each. Use each channel-storage bank
to group frequencies, such as those for the police department, fire department, ambulance services, or aircraft (see “Guide to t he Acti on Bands” on Page 58).
For example, the police 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).
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Monitor Memories
The scanner also has 5 temporary memory locations
called monitor memories. You can use these monitor
memories to temporarily store frequencies while you
decide whether to store them into a channel. This is
handy for quickly storing an active f requency when you
search through an entire band (see “Searc hing For and
Temporarily St ori ng Active Frequencies” on Page 26).
While you are searching frequencies, the 5 numbers at
the top of the display indicate the 5 moni tor memories.
appears and the number beside it that flashes in-
MON
dicates the currently activ e monitor memory.
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OPERATION
TURNING ON THE SCANNER
AND SETTING SQUELCH
Note:
Make sure the scanner’s antenna is connected
before you turn it on.
1. Tu rn
2. Tu rn
3. Press
SQUELCH
VOLUME/OFF
hear a hissing sound.
MAN
scanning, turn
set to a point just after the hissing sound stops.
fully counterclockwise.
clockwise until it clicks and you
(manual) to stop the scanner from
SQUELCH
clockwise, then leave it
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STORING KNOWN FREQUENCIES
INTO CHANNELS
Good references for active frequencies are RadioShack's “Beyond Police Call,” “Aeronautical Frequency Directory,” and “Maritime Frequency Directory.”
We update these director ies every year, so be sure to
get a current copy.
Follow these steps to store frequencies into channels.
1. Press
2. Use the number keys and
MAN
, enter the channel number where you
want to store a frequency, then press
PROG
channel number appears.
•
to enter the frequency
(including the decimal point) you want to store.
. The
1
3. Press
E
to store the frequency into the channel.
Notes:
• If you entered an invalid frequency in Step 2,
Error
appears and the scanner beeps three
times. Simply enter the frequency again.
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• 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.
DELA Y
• Press
seconds after a transmission ends before it proceeds to the next channel (see “Delay” on
Page 33). The scanner also stores this setting
in the channel.
4. If you want to program the next channel in
sequence, press
if you want the scanner to pause 2
PROG
and repeat Steps 2 and 3.
SEARCHING FOR AND
TEMPORARILY STORING ACTIVE
FREQUENCIES
If you do not have a reference to frequencies in your
area, use a limit, direct, or service search to find a
transmission. Also see “Guide to the Act ion Bands” on
Page 58.
Notes:
search, you can press
While doing a limit, direct, or service bank
:
DELAY
•
• if you want the scanner to skip data signals
if you want the scanner to pause 2 seconds
after a transmission ends before it proceeds to the
next frequency (s ee “Delay” on Page 33).
DATA
(such as fax or modem signals) and search only
for audio (voice) signals (see “Skipping Data Signals” on Page 38).
Limit Search
A limit search lets you search within a specific range
of frequencies.
1. Press
26
PROG
appear.
appears during a limit search.
-L-
LIMIT
, then
. Lo and
29.000 MHz
20-521 .fm Page 27 We dnesday, August 4, 1999 3:32 PM
2. Enter the frequency that is the lower limit of the
range you want to search (including the decimal
point), then press
3. Press
LIMIT
E
. Hi and
.
956.000 MHz
appear.
4. Enter the frequency that is the upper limit of the
range you want to search (including the decimal
point), then press
E
again.
5. Press t to search from the upper to the lower limit,
or s to search from the lower to the upper limit.
6. When the scanner stops
on a transmission,
quickly press either:
HOLD
•
to stop searching so you can listen
to the transmission.
appears.
HOLD
MON/CLEAR
•
to store
the displayed frequency into the current monitor memory.
To release hold and continue searching, press
HOLD
or hold down t or s for at least 1 second. Or,
if you did not press
HOLD
, simply press t or s to
continue sear ching.
Direct Search
Direct search lets you search up or down from the currently displayed frequency.
1. Press
2. Use the number keys to enter the frequency you
MAN
.
want to start the search from. Press
decimal point.
to enter a
•
27
20-521 .fm Page 28 We dnesday, August 4, 1999 3:32 PM
Notes:
• If you want to start the search from a frequency
already stored in one of your scanner ’s channels, press
to enter the chan nel number, then press
again.
PROG
MAN
or
, use the number keys
PROG
MAN
• If you enter an invalid frequency, the scanner
displays
Error
. Simply repeat this step.
3. Press t to search downward or s to search upward
from the selected frequency.
-d-, SEARCH
, and t
or s appear.
4. When the scanner stops on a transmission,
quickly press ei ther:
•
•
to stop searchi ng so you can listen to the
HOLD
transmission.
MON/CLEAR
appears.
HOLD
to store the displayed frequency
into the current monitor memory.
To release hold and continue searching, press
or hold down t or s for at least 1 second. Or,
HOLD
if yo u did no t pres s
, simply press t or s to
HOLD
continue searchi ng.
Note: To step through the frequencies whil e
HOLD
is displayed, press t or s.
or
Service Bank Search
You can search for weather, ham, marine, aircraft, or
police (fire/emergency) transmissions even if you do
not know the specific frequencies being used in your
area. The scanner is preprogrammed with all the frequencies allocated to these services. To use this feature, press
searches through the weather service band. To select
a different service bank, press the desired serv ice bank
key (
WX1, HAM2, MRN3, AIR4
sponding service band number (
or
) appears, and the scanner starts searching the
-5-
band.
28
SVC
.
appears and the scanner
SVC
, or
POL5
-1-, -2-, -3-, -4-
). The corre-
,
20-521 .fm Page 29 We dnesday, August 4, 1999 3:32 PM
When the scanner stops on a transmission, quickly
press either:
HOLD
•
•
to stop searching so you can listen to the
transmission.
MON/CLEAR
appears.
HOLD
to store the displayed frequency into
the current monitor memory.
To release hold and continue searching, press
HOLD
or hold down t or s for at least 1 second. Or,
if you did not press
HOLD
, simply press t or s to
continue sear ching.
Note:
Because there are many different frequencies allocated to fire and police departments, it takes several
minutes to search all these frequencies.
Search Skip Memory
You can skip up to 20 specified frequencies during a
limit or direct search and up to 20 speci fied frequencies
during a service bank search. This lets you avoid unwanted frequencies or ones you have already stored in
a channel.
To skip a frequency, press
S/S
when the scanner
stops on the frequency during a limit, di rect, or service
search. The scanner stores
the frequencyin memory
and automatically resumes the search .
To clear a single frequency from skip memory so the
scanner once again stops on it during a limit, direct, or
service bank search:
1. Press
2. Press t or s to select the f requency.
3. Press
HOLD
to hold the search.
S/S
.
disappears.
L/O
L/O
ap-pears.
To clear all the ski p frequencies at once while searching, press
HOLD
, then hold down
S/S
until the scanner
beeps twice (about 3 seconds).
29
20-521 .fm Page 30 We dnesday, August 4, 1999 3:32 PM
Notes:
• If you marked all frequencies to be skipped wi thin
the search range, the scanner beeps 3 t imes and
does not search.
• If you program more than 20 frequencies to skip,
each new frequency replaces one you already
stored, star ting from the f irst frequency you stored.
• Press t or s to select a skipped frequency while
appears.
HOLD
skipped frequency.
appears when you sel ect a
L/O
LISTENING TO THE MONITOR
MEMORIES
You can listen to the frequency you st ored in any
one of the five monitor
memories by pressing
MAN, MON/CLEAR
the number of the monitor memory you want to
listen to (1–5).
, then
Note: To listen to the
monitor memories, the
priority channel feature
must be turned off (see
“Priority” on Page34).
MOVING A FREQUENCY FROM A
MONITOR MEMORY TO A
CHANNEL
1. Press
appears.
2. Enter the number of
the channel where
you want to store
the frequency in a
monitor memory,
then press
appears.
PGM
30
MAN
.
PROG
MAN
.
20-521 .fm Page 31 We dnesday, August 4, 1999 3:32 PM
3. Press
4. Press
MON/CLEAR
monitor memory that contains the frequency you
want to store.
E
. The scanner stores the frequency into the
selected channel.
and enter the number of the
SCANNING THE STORED
CHANNELS
To begin scanning channels, press
scans through all non-locked channels in the activated
banks. (See “Locking Out Channels” on Page 34 and
“Turning Channel-Storage Banks On and Off” on
Page 33). When the scanner finds a transmission, it
stops on it. When the transmission ends, the scanner
resumes scanni ng.
Notes:
• If you have not stored frequencies into any channels, the scanner does not scan.
• If the scanner picks up unwanted, partial, or very
weak transmissions, turn
decrease the scanner's sensitivity to these signals.
If you want to listen to a weak or distant station,
turn
SQUELCH
•If
SQUELCH
ing sound, the scanne r does not scan properly.
• To scan in the trunk tracking mode, see “Scanning
a Trunked Bank” on Page 43.
counterclockwise.
is adjusted so you always hear a hiss-
SCAN
SQUELCH
. The scanner
clockwise to
MANUALLY SELECTING A
CHANNEL
You can continuously monitor a single channel without
scanning. This is useful if you hear an emergency
broadcast 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 speci fic channel.
Follow these steps to manually select a channel.
1. Press
2. Enter the channel number.
3. Press
MAN
MAN
.
again.
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20-521 .fm Page 32 We dnesday, August 4, 1999 3:32 PM
Or, if your scanner is scanning and stops at the desired
channel, press
MAN
one time. (Pressing
MAN
additional times causes your scanner to step through the channels.)
To resume automatic scanning, press
SCAN
.
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20-521 .fm Page 33 We dnesday, August 4, 1999 3:32 PM
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 on a specific
channel, you can program a 2-second delay into any
channel or frequency. The scanner continues to monitor the channel frequency for 2 seconds after the transmission stops before resuming scanning or searching.
To program a 2-second delay:
• If the scanner is
scanning and stops
on an active channel
where you want to
store a delay, quickly
DELAY
press
continues scanning
again.
• If the desired channel is not selected, manually
select the channel, then press
pears.
• If the scanner is searching, press
scanner is searching.
ner automatically adds a 2-second delay to every
frequency it stops on in that band.
DLY
before it
appears.
DELAY
DELAY
appears and the scan-
DLY
.
ap-
DLY
while the
To turn off the 2-second delay, press
scanner is monitoring a channel, scanning, or searching.
disappears.
DLY
DELAY
while the
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. Numbers appear
at the top of the display, showing the currently selected
banks.
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20-521 .fm Page 34 We dnesday, August 4, 1999 3:32 PM
The scanner scans all the channels within the displayed banks that are not locked out (see “Locking Out
Channels”).
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 must
always be active.
LOCKING OUT CHANNELS
You can increase the scanning speed by locking out
channels that have a continuous transmission, such as
a weather channel. To lock out a channel, manually
select the channel, then press
Note: You can still manually select locked out channels.
L-OUT.
L/O
appears.
To remove the lockout from a channel, manually select
the channel, then press
To unlock all channels in the banks that are turned on,
press
til the scanner beeps twice.
to stop scanning, then hold down
MAN
S/S
.
L/O
disappears.
L-OUT
un-
PRIORITY
The priority feature lets you scan thro ugh channels and
still not miss import ant 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 5 stored
channels). If the priority feature is turned on, as the
scanner scans the bank, it checks that bank’s priority
channel every 2 seconds for activity.
The scanner automatically designates each bank's first
channel as its priority channel. Follow these steps to
select a di fferent ch annel in a bank as the priority channel.
34
20-521 .fm Page 35 We dnesday, August 4, 1999 3:32 PM
1. Press
PROG
.
2. Enter the channel number you want to select as
the priority channel, then press
PRIORITY
.
P
appears to the right of the channel number.
3. Repeat Steps 1 and 2 for the channel in each bank
you want to program as a priority channel.
To review all priority channels, press
peatedly pr ess
PRIORITY
to see the numbers of the pri-
PROG
, then reority channel s.
To turn on the priority feature, press
scanning.
appears. Every 2 seconds the scanner
PRI
PRIORITY
during
checks the priority channel in each bank that is turned
on.
To turn off the priority feature, press
PRIORITY
.
PRI
disappears.
Notes:
• The priority feature must be turned off to listen to
the monitor memories or to use the data skip feature.
• You can lock out priority channels. If you
lock out all priority
channels,
LOC OUt
appears when you
turn on the priority
feature.
35
20-521 .fm Page 36 We dnesday, August 4, 1999 3:32 PM
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
SQUELCH
Note:
scanning channels.
SCAN, MAN, KEYLOCK, VOLUME/OFF
.
The keylock does not prevent the scanner from
, and
To turn on the keylock, hold down
appears. To turn it off, hold down
disappears.
KEYLOCK
KEYLOCK
until
until
K/L
K/L
USING THE DISPLAY BACKLIGHT
You can turn on the display light for easy viewing at
night. Press to turn on the display light for 15 seconds. To turn off the light before 15 seconds elapse,
press the button again.
CHANGING SEARCH SPEEDS
The PRO-91 has two search speeds.
Normal SearchHypersearch
100 steps/second300 steps/second
To switch between the normal and Hypersearch
speeds during limit search or direct search, press
appears during Hypers earch.
HYPER
Note:
You can use Hypersearch only in the 5 kHz step
bands (29–54 MHz and 137–174 MHz).
36
H/S
.
S
20-521 .fm Page 37 We dnesday, August 4, 1999 3:32 PM
TURNING THE KEY TONE OFF/ON
To turn off the key tone, follow these steps.
1. Turn off the scanner.
2. While holding down
ner.
OFF bEEP
L-OUT/S/S,
appears.
turn on the scan-
To turn the key tone back on, repeat these steps.
appears.
bEEP
on
TURNING THE BATTERY SAVE
FUNCTION OFF/ON
To save battery power when a channel is manually selected or while you program the scanner, the scanner
automatically sets itself to a standby (battery save)
mode if no button is pressed for more than 5 seconds
and no signal is received. appears when battery
save is set to on.
While the battery save mode is set to on, the scanner
repeatedly turns off the internal power for 1 second,
then turns it back on for about
transmission.
The scanner is pre set with the battery save mode set to
on, but you can turn it off or back on.
Note:
The battery save mode does not work if the pr iority function is on, even if a channel is manually selected.
To turn the battery save function off or back on, turn off
the scanner, then hold down
scanner.
•
OFF SAVE
been turned off.
•
on SAVE
been turned on.
briefly appears when battery save has
briefly appears when battery save has
1
/2 second to check for a
PRIORITY
and turn on th e
37
A
A
20-521 .fm Page 38 We dnesday, August 4, 1999 3:32 PM
SKIPPING DATA SIGNALS
You can set the scanner so it skips nonmodulated or
data signals (such as fax or modem transmissions)
during a sear ch or scan.
Note:
Since data signals are not generally found in the
air band, this feat ure does not work in the air band.
To turn on the data skip feature, be sure the priority
feature is turned off (see “Priority” on Page 34), then
DATA
press . appears. To turn off the feature,
DATA
press again. disappears .
DA T
DA T
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20-521 .fm Page 39 We dnesday, August 4, 1999 3:32 PM
TRUNK TRACKING
Your scanner is designed t o track transmissions o n M otorola Type I, Type II, and hybrid analog trunking systems, 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 50 for more information).
• Your scanner cannot track transmissions on nonMotorola trunking systems.
• Your scanner cannot track an 800 MHz trunked
system and scan conventional frequencies 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-91.
TYPES OF TRUNKING SYSTEMS
Your trunk trac king scanner can monitor two basic types
of systems —
specific frequency to transmit on, a trunked system
chooses one of several frequenc ies in a 2-wa y radio user’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 sy stems do this is sli ghtly dif ferent. One impo rtant distinction between these systems is the amount of
data transmitted by each radio when its push-to-talk
(PTT) button is pressed. In a Type I system, the radio’s
ID and its c urrent affilia tion (the trunk syste m it be longs
to) are both transmitted. In a Type II s ystem, only the radio’s ID is tran sm itted.
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.
Type I
and
Type II
. Instea d o f sel ecti ng a
39
20-521 .fm Page 40 We dnesday, August 4, 1999 3:32 PM
The fleets might be the police department, the fire department, 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 available police radios would then be assigned to
one of the police subfleets, letting the police centralize
their communications 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 programming.
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 capaci ty of Type I syst ems is limi ted and
the amount of data increases with each user, Type I
systems usually accommodate fewer users than Type
II systems. Nevertheless, Type I systems are still in
use.
There are also
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 Page50).
You do not need to determine the fleet-subfleet hierarchy for Type II systems unless you are tracking hybrid
systems that contain both Type I and Type II systems.
hybrid
systems which are a combinati on
SETTING THE SCANNER TO THE
TRUNK TRACKING MODE
TRUNK
Press
and trunk tracking.
to switch between conventional scanning
40
20-521 .fm Page 41 We dnesday, August 4, 1999 3:32 PM
SETTING SQUELCH FOR THE
TRUNK TRACKING MODE
Your scanner’s squelch setting is automatically adjusted during trunk tracking, which means it is not necessary to manually adjust squelch while tracking trunked
transmissions. However, the squelch setting can affect
how fast your scanner acquires the data channel, and,
in some instances, can pr event your scanner from acquiring the data channel at all.
We recommend you set
selecting a trunked bank.
Note:
You can change this setting, i f necessary, to pro-
vide better performance in your area.
SQUELCH
to this positi on before
STORING TRUNKED
FREQUENCIES
Before you set up your scanner to track a trunked system, consider the following:
• Valid trunked system frequencies range from
851.0000–868.9875 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.
41
20-521 .fm Page 42 We dnesday, August 4, 1999 3:32 PM
Before scan ning a trunked system’s t ransmissions, you
must store the trunked system’s frequencies in one of
the banks in your scanne r by fol lowing these steps.
1. Press
PROG
then
TRUNK
.
TRUNK
appears and
one or more bank numbers flash.
2. Select the bank you want to store the trunked system’s frequencies in by pressing a number key.
The scanner automatically selects the f ir st channel
in the bank when you select the bank.
3. Use the number keys to enter one of the trunked
system’s frequencies, then press
and the bank number, the channel number,
BANK
E
.
TRUNK,
and the frequency appear.
Note:
If you entered an invalid frequency, the
scanner beeps, the channel number flashes and
appears. If this happens, press • to clear
Error
the frequency, then repeat this step.
4. Press either
PROG
or s to select the next channel
in the bank.
5. Repeat Steps 3 and 4 until all frequencies have
been entered i n that bank.
42
20-521 .fm Page 43 We dnesday, August 4, 1999 3:32 PM
6. Press
searching for the trunk’s
data channel (the channel
that controls the trunk).
SEARCH
scanner searches for the
data channel.
While the scanner looks through the frequencies,
you see them on the display. When the scanner
finds the data chan nel, it begins trunk tracking.
SRC
to begin
flashes as the
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 5 available banks and you are scanning
conventional (non-trunked) frequencies, follow these
steps to begin trunk scanning.
1. Press
TRUNK
along with
. The numbers for all banks flash,
BANK
and
TRUNK
.
2. Use the number keys to enter the number for the
trunked bank you want to scan, then press
The scanner searches for a data channel. When
the scanner finds it, it begins trunk tracking.
If you entered all of the trunk’s f requencies, you
should be able to follow conversations between
broadcasters even when they change frequencies. IDs, which represent different service
groups , a pp ear.
ID
3. To return to conventional scanning, press
again.
SRC
TRUNK
43
.
20-521 .fm Page 44 We dnesday, August 4, 1999 3:32 PM
Hint: While scanning, you will not know exactly who
the IDs are assigned to until you listen awhile or until
you locate ID lists in frequency guides or on internet
sites such as
minutes, you can usually figure out if what you are listening to is a police, 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!
www.trunkscanner.com
. Within a few
Monitoring an Active ID
When the scanner stops on a transmission, you can
hold the scanner on that transmission.
1. Press
stays on the current ID.
HOLD
.
appears and the scanner
HOLD
2. If you want to listen to a different ID, use the number keys to enter the ID you want to hol d.
3. Press
flash and the scanner monitors that ID.
4. When you want to stop the hold and resume
searching for a data channel so you can continue
trunk tracking, press
Note: You can also follow these steps to hold on an ID
while scanning a scan list. See “Scan Lists” on
Page 48.
HOLD
again.
and the channel number
HOLD
.
SRC
T emporarily Storing an ID into t he Monitor
ID Memory
1. When your scanner stops on an ID you want to
store, press
ID into the monitor ID memory.
2. Press
Note: To progra m the ID stored in the monitor ID memory into the ID scan list, see “Scan Lists” on Page 48.
44
MON/CLEAR
to resume searching.
SRC
. The scanner stores the
20-521 .fm Page 45 We dnesday, August 4, 1999 3:32 PM
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 tim e.
Note:
If you lock out an ID while searching, it is also
locked out of the scan list(s). See “Scan Lists” on
Page 48.
To lock out an ID, press
L-OUT
when the ID appears.
The ID is locked out, and the next active ID appears.
Unlocking a Single ID
1. Hold down
2. Repeatedly press t or s to select the ID you want to
unlock.
3. Press
The ID is unlocked, and the next locked ID or
–– –––
4. Press
tion.
L-OUT
until you hear two short beeps.
L-OUT
.
(if there are no other lo cked IDs) appear s.
SRC
to continue the scanner’s pre vious fun c-
Unlocking All IDs
Hold down
press
beeps twice.
L-OUT
until you hear two short beeps. Then
to unlock all the IDs at once. The scanner
E
Note:
When you unlock all the IDs, the scan list appears. Press
lists or press
SCAN
to scan the IDs stored in your scan
SRC
to continue the scanner’s previous
function. For more information about scan lists, see
“Scan Lists” on Page 48.
45
20-521 .fm Page 46 We dnesday, August 4, 1999 3:32 PM
Using Trunk Tracking Scan Delay
Many trunked systems have a period of 2 or more seconds 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 t he frequency for 5 seconds after the transmission stops before resuming scanning.
DELA Y
Press
appears when trunk tracking scan delay is set.
DLY
Note:
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 50.
to turn trunk trac king scan delay on or off.
If you consistently miss responses even with
Monitoring IDs
You can use your scanner ’s display to monitor the frequencies 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
MON/CLEAR
flash, and all active talk group IDs appear in quick succession. To stop monitoring IDs, press
Note:
pear.
46
until
SEARCH
and the channel number
SRC
again.
When you monitor IDs, locked-out IDs also ap-
BANK 2
20-521 .fm Page 47 We dnesday, August 4, 1999 3:32 PM
CHANNEL ACTIVITY BARS
Your scanner has 20 channel activity indicators (bars)
which show the activity taking place on a trunked system. 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 corresponding activity bar. However, since there are only
20 bars, but you can store up to 30 frequencies, some
bars might indicate more than one frequency if the
trunked system you are scanning has more than 20
channels.
• The bar that remains on steadily even when there
are no current transmissions represents the frequency being used as the dat a channel.
• The bar that flashes when an ID appears represents the frequency being used by the radio to
transmit what you are currently hearin g.
• If a bar turns on but you do not hear a conversation, the channel is probably being used for a telephone interconnect call or a private call, or the bar
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 bars turn on and off as
other groups use the system.
47
20-521 .fm Page 48 We dnesday, August 4, 1999 3:32 PM
SCAN LISTS
When you program trunked frequencies into a bank
(see “Storing Trunked Frequencies” on Page 41), your
scanner sets up 5 scan lists into which you can store
your favorite IDs. Each list can contai n up to 10 IDs, so
you can store a total of 50 IDs for each trunk tracking
bank (250 IDs if you use all banks as trunking banks!).
Scan lists hel p you organize tru nking 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 pr ogram 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 Page43).
2. After the scanner begins trunk tracking, press
MAN
. A number showing the current scan list
appears steadily at the top of the display, and bars
which show activity i n other banks appear.
3. Press
MAN
then repeatedly press s or t to select
the ID scan list location (shown at the top of the
display) where you want to store an ID. Then,
PROG
press
to select the ID you want to store.
ID Scan List
4. Enter the Type II ID you want to store, then press
E
.
48
20-521 .fm Page 49 We dnesday, August 4, 1999 3:32 PM
Or, to enter a Type I ID:
a. Use the number keys to enter the block number
and fleet number, then press
.
•
b. Enter the subfleet number, then press
Note:
To clear a mistake while entering an ID,
0
press
5. Repeatedly press
then E, then start over at Step 1.
PROG
or s to select the next
scan list location y ou want to program. Then repeat
Step 4 to enter another ID.
Moving IDs to Scan Lists
E
.
1. Press
MAN
.
MAN
appears.
2. Select the ID scan list location where you want to
store the IDs. Then press
3. Press
4. Press
MON/CLEAR
E
. The scanner stores the IDs into the
PROG
.
appears.
PGM
. A monitor ID appears.
selected ID scan lists.
Deleting a Stored ID
1. Press
2. Repeatedly press s or t to select the scan list loca-
3. Press
PROG
.
appears.
PGM
tion (shown at the top of the display) you want to
delete.
0
then E.
49
20-521 .fm Page 50 We dnesday, August 4, 1999 3:32 PM
SCANNING THE SCAN LISTS
SCAN
Press
stored.
Note:
the display, but your scanner does not stop on an active conversation.
To remove a scan list from active scanning, use the
number keys to enter the scan list’ s number. The scan
list number turns off, and the IDs in that list are not
scanned.
Note:
remove all of the scan lists.
To restore a scan list to active scanning, use the number keys to enter its number again.
to begin scanning the lists you have
If you have not stored any IDs,
One scan list must always be active. You cannot
SCAN
scrolls on
SRC
Press
to return to the scanner’s previous functi on.
SCANNING TYPE I AND HYBRID
TRUNKED SYSTEMS
Your PRO-91 is set to sc an 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-91 can also scan Type I
trunked systems. Each Type I ID appear s 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
monitoring either a Type I or hybrid (a combination of
Type I and Type II user IDs) system (see “Types of
Trunking Systems” on Page 39).
You might also notice that you are missing responses
when you hold on an active ID. Unli ke Type II systems,
Type I and hybrid systems require a fleet map that sets
specific fleet-subfleet parameters. I t is easy to select a
fleet map to scan; what is not always easy is selecting
or programm ing a map that is b eing used in your particular area.
50
20-521 .fm Page 51 We dnesday, August 4, 1999 3:32 PM
4. Press again.
DATA
5. Repeatedly press s or t to select the name of the
map you want (such as
). The prepro-
E1P7
grammed fleet map appears.
6. Press
E
, then
SRC.
The scanner then searches for
transmissions using the pres et map you chose.
Note:
When the scanner searches for transmissions,
you see Type I fleet and subfleet IDs such as
100-9, 000-12
, or
400-8
.
100-12
How do you know if the preset map you selected is correct? Listen to see if you are following com plete conversations. If not, try another preset map.
Programming a Fleet Map
1. Set the scanner for conventional scanning, press
PROG
, then press
2. Select the bank where you want to program the
fleet map by pressing a number key.
3. Press
DATA
4. Repeatedly press s or t to select E1, then press
DATA
. A preprogrammed fleet map appears.
5. Repeatedly press s or t until
E
press
.
TRUNK
.
.
appears. Then
USr
,
6. Press .
DATA
7. Repeatedly press s or t to select the size code for
the first block, then press
E
. The next available
block appears.
Block
8. Repeat Step 7 until you have selected a size code
for each block you want to work with.
51
20-521 .fm Page 52 We dnesday, August 4, 1999 3:32 PM
When a Type I system is designed, the address information for all its user IDs is divided into 8 equal-size
blocks, numbered 0–7, and each block is assigned a
size code. 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 m ap
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 s eparate subfleets, and it has a
total of 512 individual IDs.
SizeFleetsSubfleetsIDsBlocks
Used
S-0Reserved block for Type II IDs
S-11284161
S-2168641
S-3881281
S-41165121
S-5644321
S-6328321
S-7324641
S-81641281
S-9842561
S-10482561
S-112162561
S-1211610242
S-1311620484
S-1411640968
Each ID in the block is unique. The left- mo st di git 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.
52
20-521 .fm Page 53 We dnesday, August 4, 1999 3:32 PM
The size codes selected by a Type I system designer
depend 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 onl y a few subfleets, with m any radios each.
To scan Type I 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 wo rds, y ou will hea r comp lete comm unications whi le monitoring a trunked system.
Note: Preset fleet maps might be available at
www.trunkscanner.com
.
If you do not al ready know the si ze codes used, you wi ll
have to guess them. But si nce 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
SRC
Now listen to the communications. I f you decide you are
receiving 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 choos e from, and it is
best to start with these when setting up a Type I or hybrid 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 51).
1. Set the scanner for conventional scanning, press
PROG
, then press
2. Select the bank wher e you want to store the preset
fleet map by pressing a number key.
3. Press .
DATA
4. Repeatedly press s or t to select
flashes, press E.
E1
TRUNK
.
. Then, when
E1
55
20-521 .fm Page 56 We dnesday, August 4, 1999 3:32 PM
9. Press
Note:
restrictions 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 requi re multiple blocks, you will
be prompted for the next available block when programming a fleet map. For example, if you assign
Block 0 as an S-12, the scanner prompts you for
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.
SRC
. The scanner exits the trunking programming mode, tunes the data channel, then
begins to search using the map you programmed.
If you select size co de S-1 2, S-13, o r S-14, the se
b2
Programming a Hybrid System
A hybrid system is simply a Type I system with som e of
its blocks designat ed as Type II blocks. To program a
hybrid system, follow the steps listed in “Programming
a Fleet Map” on Page 51. However, if you want a block
to be Type II, select size code
S-0
in Step 7.
,
56
20-521 .fm Page 57 We dnesday, August 4, 1999 3:32 PM
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 ar e beyond the horizon.
GUIDE TO FREQUENCIES
National Weather Frequencies
162.400162.475162.525
162.425162.500162.550
162.450
Canadian Weather Frequencies
161.650161.775163.275
Note:
These frequencies are not preprogrammed in the
weather servi ce bank but can be manually programmed
into a channel.
Birdie Frequencies
Every scanner has birdie frequencies. Birdies are signals created inside the scanner’s receiver. These operating freque ncies might interfere with broadcasts on the
same frequencies. If you program one of these frequencies, you hear only noise on that frequency. If the interference is not severe, you might be able to turn
SQUELCH
This scanner’s birdie frequencies (in MHz) are:
clockwise to cut out the birdie.
31.200041.600052.0000138.7100
138.7150145.6000148.6200165.3000
171.2500406.2250407.7625407.8125
413.1750413.2250416.1375426.0375
426.0500435.9500455.7625455.8625
455.7750465.6750475.5875485.4875
489.2500495.4000505.3000505.3125
813.4000820.9500822.3625899.2375
57
20-521 .fm Page 58 We dnesday, August 4, 1999 3:32 PM
GUIDE TO THE ACTION BANDS
T y pic al Band Usage
VHF Band
Low Range29.00–50.00 MHz
6-Meter Amateur50.00–54.00 MHz
U.S. Government137.00–144.00 MHz
2-Meter Amateur144.00–148.00 MHz
High Range148.00–174.00 MHz
UHF Band
U.S. Government406.00–420.00 MHz
70-cm Amateur420.00–450.00 MHz
Low Range450.00–470.00 MHz
FM-TV Audio Broadcast, Wide
Band
Public Service806.00–823.93 MHz
Conventional System s851.00–856.00 MHz
Conventional/Trunked Systems
Trunked Systems861.00–866.00 MHz
Public Safety866.00–868.93 MHz
High Range896.11–902.00 MHz
33-Centimeter Amateur902.00–928.00 MHz
Private Trunked935.00–940.00 MHz
General Trunked940.00–941.00 MHz
Fixed Services941.00 –944.00 MHz
Studio-to-Transmitter Broadcast Links
Private Fixed Servi c es, Paging952.00–956.00 MHz
470.00 –512.00 MHz
856.00 –861.00 MHz
944.00 –952.00 MHz
Primary Usage
As a general rule, most of the radio activity is concentrated on the following frequencies:
VHF Band
ActivitiesFrequencies
Government, P olice, and Fire153.785–155.980 MHz
Emergency Serv ices158.730–159.460 MHz
Railroad160.00 0–161.900 MHz
58
20-521 .fm Page 59 We dnesday, August 4, 1999 3:32 PM
UHF Band
ActivitiesFrequencies
Land-M ob ile “Pair ed ” F requencies
Base Stations451.02 5–454.950 MHz
Mobile Units456.025–459.950 MHz
Repeater Units460.025–464.975 MHz
Control Stations465.025–469.975 MHz
450.000–470.000 MHz
Note: Remote contr ol stations and mobile units operate
at 5 MHz higher than their associated base stations and
relay repeate r units.
BAND ALLOCATION
To help decide which freque ncy ra nges to scan, use the
following listing of the typical services that use the frequencies your scanner receives. These frequenci es are
subject to change, and might vary from area to area.
For a more com plete listi ng, refer to the “Police Call Radio Guide including Fire and Emergency Services,”
available at your l ocal RadioShack store.
The tuning location of a station can be expressed in
frequency (kHz or MHz) or in wavelength (meters). The
following information can help you make the necessary
conversions.
1 MHz (million) = 1,000 kHz (thousand)
To convert MHz to kHz, multiply the number of megahertz by 1,000:
9.62 (MHz) x 1000 = 9620 kHz
To convert from kHz to MHz, divide the number of kilohertz by 1,000:
2780 (kHz) ÷ 1000 = 2.780 MHz
To convert MHz to m eters, divide 300 by the number of
megahertz:
300 ÷ 7.1 MHz = 42.25 meters
62
20-521 .fm Page 63 We dnesday, August 4, 1999 3:32 PM
TROUBLESHOOTING
If you have problems, here are some suggestions that
might help. If they do not, take your s can ner to you r
loc al RadioShack store for assistance.
PROBLEM
Scanner is on but
will not scan.
Scanner is totally
inope rat iv e.
The scanner’s
display dims or
the scanner
sounds a tone
every 15
onds.
30 sec-
–
POSSIBLE
CAUSE
SQUELC H
adjusted correctly.
Only one cha nnel
or no channels
are stored.
No power.Check the batter-
The AC ad ap ter
or DC adapter is
not connected.
Batteries are not
correctly
installed.
The batteri es are
weak.
is not
REMEDY
Turn
SQUELCH
clockwise.
Store f requencies
into mor e than
one channel.
ies or make sure
the AC adapt e r or
DC adapter is
connected properly.
Recharge the
rechargeable batteries or replace
the non-rechargeable batteries.
Be sur e the
adapte r’s barrel
plug is fully
plugged into t he
POWER
Make sure the
batteries are
installed properly.
Recharge the
rechargeable batteries or replace
the non-rechargeable batteries.
jack.
Keypad does not
work.
BATT. Lo
flashes.
The keylock function is activated.
The batteri es are
weak.
To turn off the
keylock, press
KEYLOCK
K/L
Recharge the
rechargeable batteries or replace
the non-rechargeable batteries.
until
disapp ea r s .
63
20-521 .fm Page 64 We dnesday, August 4, 1999 3:32 PM
PROBLEM
PROBLEM
Error
appears.
The scan ner
locks on frequencies t hat have an
unclea r transmission.
Scanner will not
track a trunked
system .
POSSIBLE
CAUSE
POSSIBLE
CAUSE
An ante nna is not
connec te d or
connec te d incorrectly.
Programming
error.
Stored freq uencies are the same
as “bi rdie” frequencies.
The transmission might not
use a system t hat
can be tracked by
your scanner.
REMEDY
REMEDY
Make sure an
antenna is connected to the
scanner.
Re-enter the frequency correctly,
including the decimal poin t.
Avoid storing frequencies listed
under “Birdie Frequencies” on
Page 57 or only
listen to them
manual ly.
Scan another
transmission.
Scanner is set to
receive Type I
trunked frequencies, but does
not scan them.
64
The data frequency is missing.
The system you
are trying to track
is a Type I system, and the
scanner is set to
scan Type II systems.
The fleet map
you have selected or entered
might be incorrect.
Find the data frequency (see
“Storing Trunked
Frequencies” on
Page 41).
Set the s canne r to
receive Type I
trunked frequencies. See “Scanning Type I and
Hybrid Trunked
Systems” on
Page 50.
Check the fleet
map an d c orr e ct it
if necess ary (see
“Scanning Type I
and Hybrid
Trunked Systems” on Page 50
and “Programming a Fleet Map”
on Page 51).
20-521 .fm Page 65 We dnesday, August 4, 1999 3:32 PM
PROBLEM
Scanner will not
stop while scanning a scan list.
Scanner will not
acquire a dat a
channel.
Missin g replies to
conversations.
POSSIBLE
CAUSE
No IDs have
been stored.
The IDs you hav e
stored are not
active.
SQUELC H
is not
correct ly adjust ed
for trunk tracking.
The frequency
used for the data
chan ne l is mi ss ing.
The syst em you
are tryin g to trac k
is a Type I system, and the
scanner is set to
scan Type II systems.
REMEDY
Store on e or more
IDs (see “Scan
Lists ” on Page48.
Scan an other
transmission.
Adjust sq ue lc h fo r
trunk tracking.
See “Settin g
Squelc h for the
Trunk Track ing
Mode” on
Page 41.
Press
SRC
to
search fo r t he
data ch an nel ( s ee
“Storing Trunked
Frequencies” on
Page 41).
Set the scann er to
receive Type I
trunked frequencies. See “Scanning Type I and
Hybrid Trunked
Systems” on
Page 50.
Missin g replies to
conversations
(conti nued)
The selected
fleet map is incorrect.
Not all of the
trunk’s frequencies have been
entered.
Try another preset
fleet map or program your own
fleet map (see
“Scanning Type I
and Hybrid
Trunke d Sy stems” on
Page 50).
Enter all of the
trunk’s frequencies (see “Storing
Trunked Frequencies” on Page 41).
65
20-521 .fm Page 66 We dnesday, August 4, 1999 3:32 PM
PROBLEM
Channel activity
bars are flashing
but no sound is
heard.
POSSIBLE
CAUSE
The tra n smission might be a
private or telephone interconnect call. The
scanner does not
scan these types
of transmissions.
The ID shown is
not active.
REMEDY
Scan for another
transmission.
Wait for the ID to
become active, or
scan another
transmission.
RESETTING THE SCANNER
If the scanner’s displ ay locks up or does not work properly, you might need to reset the scanner.
Caution:
have stored into the scanner. Before you reset the
scanner, tr y turning it off and on to see if it begins working properly . Reset the scanner only when you are sure
it is not working properly.
1. Turn off the scanner.
2. While you hold down the
Note:
flashing. Otherwise, the scanner might not clear its
memory properly.
This procedure clears all the information you
2
and 9 keys, turn on the
scanner.
flashes for about 8 seconds as
CLEAR
the scanner clears its memory.
Do not turn off the scanner until
CLEAR
stops
66
20-521 .fm Page 67 We dnesday, August 4, 1999 3:32 PM
CARE AND MAINTENANCE
Your RadioShack PRO-91 150-Channel Handheld
Trunking Scanner is an e xam ple of super ior design and
craftsmanship. 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
minerals that can corrode the electronic
circuits.
Use only batteries of the recommended
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 i n normal
temperature environments. Temperature
extremes can shorten the life of electronic devices, damage batteries, and distort
or melt plasti c parts.
Keep the scanner away from dust and
dirt, which can cause premature wear of
parts.
Wipe the scanner with a damp cloth occasionally to keep it looking new. Do not
use harsh chemicals, cleaning solvents,
or strong detergents t o clean the scanner.
Modifying or tampering with the scanne r’ s internal components can cause a malfunction, invalidate your scanner’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 stor e for assistance.
67
20-521 .fm Page 68 We dnesday, August 4, 1999 3:32 PM
SPECIFICATIONS
Frequency Coverage: ..... 29–54 MHz (in 5 kHz steps)
108–136.975 MHz ( in 12. 5 kHz steps)
137–174 MHz (in 5 kHz steps)
406–512 MHz (in 12.5 kHz steps)
806.0000–823.9375 MHz (in 12.5 kHz steps)
851.0000–868.9875 MHz (in 12.5 kHz steps)
896.1125–956.0000 MHz (in 12.5 kHz steps)
Monitor Channels 5
Number of Banks 5
Sensitivity (A M/FM):
Delay Time ................................................. 2 Seconds
IF Frequencies 380.7 MHz, 10.85 MHz, and 450 kHz
Antenna Impedance 50 Ohms
Audio Output ................................. 350 mW maximum
Built-in Speaker ...............1
Maximum Current Drain ................ .. .......... .. .... 180 mA
7
/16 Inches (36 mm) 8 Ohm,
F (–20 to 60° C)
°
Dynamic Type
68
20-521 .fm Page 69 We dnesday, August 4, 1999 3:32 PM
Power Requirement:
4 AA Alkaline Batteries (6.0 VDC),
or 4 AA Rechargeable Ni- Cd Batteries (4.8 VDC),
or AC Adapter (Cat. No. 273-1665),
or DC Adapt er (Cat. No. 270-1560)
Current Drain:
Squelched .................................................. 70 mA
Full Output .... ................... ........ .. .............. 180 mA
1
1
Dimensions (HWD) ............... 6
× 2
/4
/2 × 19/16 Inches
(158 × 63 × 40 mm)
Weight (without antenna, batte ries, belt clip) ..... 8.1 oz
(229 g)
Specifications are typical; individual units might vary.
Specifications are subject to change and improvement
without notice.
69
20-521 .fm Page 70 We dnesday, August 4, 1999 3:32 PM
NOTES
70
20-521 .fm Page 71 We dnesday, August 4, 1999 3:32 PM
71
y
y
g
y
y
g
y
y
g
g
y
y
g
y
y
g
g
g
y
g
j
y g
g
20-521 .fm Page 72 We dnesday, August 4, 1999 3:32 PM
Limited One-Year Warranty
This product is warrant ed by RadioShack against manufacturi ng defects in material and work manshi p under normal use for one (1)
from the date of p urchase from RadioSha ck compan
and authorized R adioShack franchisees and deale rs. EXCEPT AS
PROVIDED HEREIN, RadioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES, INCLUDING THOSE
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE DURATION OF THE
WRITTEN LIMITED WARRANTIES CONTAINED HEREIN. EXCEPT
AS PROVIDED HEREIN, Rad ioShack SHALL HAVE NO LIABILIT Y
OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON
OR ENTIT Y WITH RE SPECT TO AN Y LIABILIT Y, LOSS OR D AMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE OR PERFORMANCE 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 lon
rant
lasts or the exclusion of incidental or consequential damages,
so the above limitations or exclusions ma
In the event of a product defe ct durin
product and th e Radi oSh ack sale s rec ei pt as pr oof of pu rchas e da te
to an
RadioShack store. RadioShack will, at its option, unless otherwise provided b
char
e for parts and l abor; (b) replace the pr oduct with one of the
same or similar desi
parts and products, and products on which a refund is made, become
the propert
ma
be used in the performanc e of warranty service. Repaired or replaced parts and products are warranted for the remainder of the
ori
inal warranty period. You will be charged for repair or replacement of the product made after the expiration of the warrant
This warrant
tributable to acts of God, abuse, accident, misuse, improper or abnormal usa
maintenance, a lteration, li
a
e or current; (b) any repairs other than tho se provided by a RadioShack Authorized Service Facilit
or batteries; (d) cosmetic dama
surance costs; or (f) costs of product removal, installation, set-up service ad
This warrant
othe r ri