Your RadioShack PRO-94 1000-Channel Handheld
Trunking Scanner is one of a new generation of scanners designed to track Motorola Type I, Type II, hybrid
analog systems, (such as Smartnet and Privacy Plus)
plus GE/Ericsson EDACS. Those systems are extensively used in many 800 MHz, 900 MHz, and UHF communication systems.
Trunking communications systems let a large group of 2way radio users (or even different groups of 2-way radio
users) efficiently use a set of frequencies. Instead of selecting a specific frequency for a transmission, the user
simply selects a talk group. The trunking system automatically transmits the call on the first available frequency, and also sends (on a different frequency called a data
channel) a code that uniquely identifies that transmission.
Since the trunking system might send a call and its response on different frequencies, it is difficult to listen to
trunked communications using a regular scanner. The
PRO-94 lets you select and monitor the data channel frequency sent with a 2-way radio transmission, so you can
hear the call and response for that user and more easily
“follow” the conversation.
The scanner also lets you scan conventional transmissions, and it 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 complicated programming.
This scanner gives you direct access to over 37,000 exciting 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 these special features:
Triple-Conversion Circuitry
— virtually eliminates any
interference from IF (intermediate frequency) images,
so you hear only the selected frequency.
RadioShack and Adaptaplug are registered trademarks used by
Hypersearch and Hyperscan are trademarks used by
All Rights Reserved.
Tandy Corporation.
Tandy Corporation.
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20-524.fm Page 3 Tuesday, August 31, 1999 3:55 PM
20 Channel-Storage Banks
— you can store up to 50
channels in each of 10 different banks, in two separate
groups, for a total of 1000 channels, so you can more
easily identify calls.
Five Scan Lists
— you can store up to 50 trunking talk
group IDs in each trunk scanning bank.
NWR-SAME Circuitry
— lets you listen to coded
weather emergency information using Specific Area
Message Encoding.
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 talk group IDs when tracking trunked systems.
Priority Channels
— lets you program one channel in
each bank (20 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 in frequency bands with 5
kHz steps, compared to the normal search speed of
100 steps per second.
Hyperscan
— the scanner automatically scans up to
50 channels per second 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.
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Disconnect Tone Detect
— the scanner automatically
tunes to the trunking data channel when it receives a
disconnect transmission. You can turn this off, so you
can continuously monitor a channel with a weak transmission where conversations are often disconnected.
Manual Access
— lets you directly access any chan-
nel.
Liquid-Crystal Display
— makes it easy to view and
change programming information.
Display Backlight
— makes the scanner easy to read
in low-light situations.
Flexible Antenna with BNC Connector
— provides
adequate reception in strong signal areas and is designed to help prevent antenna breakage. Or, you can
connect an external antenna for better reception.
Monitor Memories
— let you temporarily store up to
10 frequencies or talk group IDs.
Memory Backup
— keeps the frequencies stored in
memory for an extended time if the PRO-94 loses power.
Three Power Options
— let you power the scanner
using internal batteries, external AC power using an optional AC adapter/charger, or DC power using an optional DC cigarette-lighter 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.
Weather Alert Indicator
— your scanner also func-
tions as a severe weather alert monitor.
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Your scanner can receive these bands:
Frequency
Range (MHz)
Step
(kHz)Transmission
29–29.7510-Meter Ham Band
29.7–505VHF Lo Band
50–5456-Meter Ham Band
108–136.975012.5Aircraft Band
137–1445Military Land Mobile
144–14852-Meter Ham Band
148–1745VHF Hi Band
216–224.995051-Meter Ham Band
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
1240–130012.525-cm Ham Band
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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 different 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, 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), as amended, you are subject to fines and
possible imprisonment for intentionally listening to, using, or divulging the contents of such a transmission
unless you have the consent of a party to the communication (unless such activity is otherwise illegal).
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This scanner is designed to prevent reception of illegal
transmissions, in compliance with the law which requires that scanners be manufactured 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 coul d subject you to legal penalties.
20-524.fm Page 10 Tuesday, August 31, 1999 3:55 PM
PREPARATION
You can power your scanner from any of three sources:
• internal batteries (not supplied)
• standard AC power (using an optional AC adapter)
• vehicle battery power (using an optional DC
adapter)
USING INTERNAL BATTERIES
You can power your scanner using four alkaline, lithium, or rechargeable (Ni-Cd, or Ni-MH) AA batteries
(not supplied). For the longest operation and best performance, we recommend the selected batteries available from your local RadioShack store.
Using Non-Rechargeable Batteries
Follow these steps to install non-rechargeable batteries.
1. Turn
VOLUME/OFF
to make sure the power is turned off.
counterclockwise until it clicks
2. Slide up and hold the tab on the back of the scanner, then pull up the battery compartment cover
from the top edge.
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3. Before you install alkaline or any other nonrechargeable batteries, use a pointed object
such as a ballpoint pen to set
NI-CD
inside the compartment to
ALKALINE JACK
ALKALINE
.
Warning:
for use only with nickel cadmium (Ni-Cd) or nickel
metal hydride (Ni-MH) rechargeable batteries.
ALKALINE JACK NI-CD
Set
to
NI-CD
Never
attempt to recharge non-rechargeable batteries.
Non-rechargeable batteries can get hot or explode
if you try to recharge them.
4. Install two batteries in the compartment an d two in
the cover as indicated by the polarity symbols (+
and –) marked inside those locations.
Cautions:
• Use only fresh batteries 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
capacities.
5. Replace the cover, inserting the lower tabs first.
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20-524.fm Page 12 Tuesday, August 31, 1999 3:55 PM
BATT.Lo
When
flashes and the scanner beeps every
15 seconds, replace all four batteries.
Caution:
Always dispose of old batteries promptly and
properly. Do not bury or burn them.
Using Rechargeable Batteries
You can also use four rechargeable batteries. Before
you use nickel-cadmium or nickel-metal hydride batteries, you must charge them .
The scanner has a built-in circuit that lets you recharg e
Ni-Cd and Ni-MH batteries while they are in the sca nner. To charge the batteries, set
to
NI-CD
, install the batteries in the scanner, and
NI-CD
connect an external AC or DC adapter to the scanner’s
POWER
jack (see “Using AC Power” on Page 13 or “Us-
ing Vehicle Battery Power” on Page 14).
Warning:
Do not connect either adapter to the scanner
if non-rechargeable batteries (such as alkaline batteries) are installed in the scanner and
NI-CD
is set to
NI-CD,
or if you are unsure of the
switch’s position. Non-rechargeable batteries will get
hot and can even explode if you try to recharge them.
Before you use Ni-Cd or Ni-MH batteries for the first
time, charge them at least 24 hours to bring them to a
full charge.
ALKALINE JACK
ALKALINE JACK
Discharged batteries take about 10 to 18 hours to fully
recharge. If you use the scanner while the batteries are
charging, charging 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 seconds and
BATT.Lo
flashes.
• To prevent damage to nickel-cadmium batteries,
never charge them in an area where the temperature is above 113°F (40°C) or below 40°F (4°C).
12
1
-
8
0
0
-
8
4
3
-
7
4
2
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20-524.fm Page 13 Tuesday, August 31, 1999 3:55 PM
Important:
This scanner can use
nickel-cadmium rechargeable batteries. At the end of a nickel-cadmium
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 or call 1-800-843-7422. Some options that might
be available are: municipal curbside collection, drop-off
boxes at retailers such as your local RadioShack store,
recycling collection centers, and mail-back programs
.
USING AC POWER
You can power the PRO-94 using an 9V, 300 mA AC
adapter and a size H Adaptaplug® (neither supplied).
Both are available at your local RadioShack store.
Cautions:
You must use a Class 2 power source
that supplies 9V DC and delivers at least
!
300 mA. Its center tip must be set to neg-
ative and its plug must fit the PRO-94's
300MA
jack. Using an adapter that does not meet
these specifications could damage the PRO-94 or
the adapter.
• Always connect the AC adapter to the PRO-94 before you connect it to AC power. When you finish,
disconnect the adapter from AC power before you
disconnect it from the PRO-94.
POWER 9V
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20-524.fm Page 14 Tuesday, August 31, 1999 3:55 PM
Follow these steps to use the PRO-94 on AC power.
1. Turn
2. Insert the Adaptaplug into the adapter’s cord so it
3. Plug the adapter into a standard AC outlet.
VOLUME/OFF
to make sure the power is turned off.
reads TIP –. Insert the Adaptaplug into the PRO-
POWER 9V 300MA
94’s
counterclockwise until it clicks
jack.
If rechargeable batteries are installed and
JACK NI-CD
scanner and recharges the installed batteries at the
same time.
is set to
NI-CD
, the adapter powers the
ALKALINE
USING VEHICLE BATTERY POWER
You can power the PRO-94 from a vehicle’s 12V power
source (such as cigarette-lighter socket) using a 9V,
300-mA DC adapter and a size H Adaptaplug
supplied). Both are available at your local RadioShack
store.
Cautions:
You must use a power source that supplies 9V DC and delivers at least 300
!
mA. Its center tip must be set to negative
and its plug must fit the PRO-94's
300MA
jack. Using an adapter that does not meet
these specifications could damage the PRO-94 or
the adapter.
• Always connect the DC adapter to the PRO-94
before you connect it to the power source. When
you finish, disconnect the adapter from the power
source before you disconnect it from the PRO-94.
®
(neither
POWER 9V
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20-524.fm Page 15 Tuesday, August 31, 1999 3:55 PM
• 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 10).
1. Turn
VOLUME/OFF
counterclockwise until it clicks
to make sure the power is turned off.
2. If the adapter has a voltage switch, set the switch
to 9V.
3. Insert the Adaptaplug into the adapter ’s cord so it
reads TIP
94’s
–.
Insert the Adaptaplug into the PRO-
POWER 9V 300MA
jack.
4. Plug the adapter ’s barrel plug into your scanner’s
POWER 9V 300MA
jack.
5. Plug the other end of the adapte r into your vehicle’s cigarette-lighter socket.
If rechargeable batteries are installed and
JACK NI-CD
is set to
NI-CD
, the adapter powers the
ALKALINE
scanner and recharges the installed batteries at the
same time.
Note:
If the scanner does not operate properly when
you use a DC adapter, unplug the adapter from the
cigarette-lighter socket and clean the socket to remove
ashes and debris.
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CONNECTING THE ANTENNA
To attach the supplied flexible antenna to the connector
on the top of your scanner, align the slots around the
antenna’s connector with the tabs on the scanner’s
BNC connector. Then 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, including an external
mobile antenna or outdoor base station an tenna. Your
local RadioShack store sells a wide selection of antennas.
Note:
Always use 50-ohm, RG-58, or RG-8, coaxial cable to connect an outdoor antenna. If the antenna is
over 50 feet from the scanner, use RG-8 low-loss dielectric coaxial 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/
HEADPHONE
For private listening, you can plug an optional earphone
or mono headphones 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 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 traffic 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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20-524.fm Page 18 Tuesday, August 31, 1999 3:55 PM
CONNECTING AN EXTENSION
SPEAKER
In a noisy area, an optional extension speaker, positioned in the right place, might provide mor e com fortable listening. Plug the speaker cable’s
mm) mini-plug into your scanner’s jack. Your local
RadioShack store carries a selection of suitable speakers.
1
/8-inch (3.5-
ATTACHING THE BELT CLIP
To make your scanner easier to carry when you are on
the go, use the supplied belt clip. Use a Phillips screwdriver and the supplied screws to attach the clip to the
scanner.
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20-524.fm Page 19 Tuesday, August 31, 1999 3:55 PM
ABOUT YOUR SCANNER
We use a few simple terms in this manual to explain the
features of the PRO-94. Familiarize yourself with these
terms and the scanner’s features and you can put the
scanner to work for you right away. Simply determine
the type of communications you want to receive, then
set the scanner to scan those communications.
The PRO-94 scans conventional frequencies and
trunked systems
transmissions see “Trunking Operation” on Page 41 .
frequency,
A
location of a station. To find active frequencies, you use
search
the
such as the included
Besides searching within a selected frequency range,
you can also search your scanner’s
Service banks are preset groups of frequencies categorized by the type of services that use those frequencies.
For example, many amateur radio frequencies are located in the
. For more information about trunked
expressed in kHz or MHz, is the tuning
function or refer to a frequency reference
HAM
service bank.
Trunking Frequency Guide
service banks
.
.
When you search and find a desired frequency, you can
store it into a programmable memory location called a
channel
banks
age bank A and another 500 in channel-storage bank
B. Each bank of 500 is divided into ten 50-channel sets.
You can
is activity on the frequencies stored there.
Or, when you find a frequency, you can store it into a
temporary
until you decide whether or not to move it to a channel.
Just keep in mind — you
channels.
. Channels are grouped into
. The PRO-94 has 500 channels in channel-stor-
scan
the channel-storage banks to see if there
memory location called a
search
channel-storage
monitor memory
frequencies and
scan
19
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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 and the pages where you will find additional information about those functions.
KeyFunction(s)
A/B HOLD
SCAN
MAN
PROG
TRUNK
LIMIT/SRC
DATA/ALT
PRIORITY/
H/S
Switches the bank groups; holds
the frequency search; holds the
current ID in the trunking mode
Scans the stored channels, and
scan lists
Stops scanning and lets you
directly enter a channel number or
frequency; manually stores talk
group IDs in scan lists
Stores frequencies into channels;
programs the trunking frequency,
fleet map, and ID memories
Switches between conventional
and trunking operation
Starts a limit search; searches a
specified frequency range for frequencies; searches for another
active ID during trunking operation
Turns on or off the data signal
skip feature; moves through menu
settings while trunking; turns on or
off the NWR-SAME weather alert
Sets and turns on and off the priority & priority scanning feature;
turns on and off Hypersearch
See
Page(s)
26, 28,
49
22, 31,
54
26, 28,
53, 54
26, 44,
47, 53,
60
42, 43,
45
27, 45
28, 38
41, 63
34, 36,
55
20
20-524.fm Page 21 Tuesday, August 31, 1999 3:55 PM
KeyFunction(s)
L-OUT/S/S
KEYLOCK/
DELAY
W
V
Number
Keys
MON/CLR/
•
SVC /E
Lets you lock out selected channels or skip specified frequencies
during a search; lets you lock out
a selected ID while trunking
Locks the keypad to prevent accidental program changes; turns on
the display backlight for 15 seconds
Programs a 2-second delay for
the selected channel, a limit
search, or each service scan; programs a 5-second delay while
trunking
Searches down through a
selected frequency range; selects
options during programming;
changes the ID location number
while trunking
Searches up through a selected
frequency range; selects options
during programming; changes the
ID location number while trunking
Each key has a single-digit label
and a range of numbers. Singledigit keys enter a channel, a frequency, or an ID number. The
range of numbers (51–100, for
example) are used to enter the
channels of a memory bank.
Stores frequencies into monitor
memories during a search; recalls
frequencies from the monitor
memories when programming a
channel; stores IDs into the monitor memories or selects options
while trunking; enters a decimal
point or clears an incorrect entry
Starts a service bank search;
enters frequencies into channels;
stores the talk group IDs in the
scan lists
See
Page(s)
30, 34,
50
37
33, 51
28, 29,
53, 54
28, 29,
53, 54
25, 26,
29, 44,
48, 53
29, 30,
31
26, 29,
44, 53
21
20-524.fm Page 22 Tuesday, August 31, 1999 3:55 PM
A LOOK AT THE DISPLAY
The display has indicators that show the scanner’s current operating status. The display information helps you
understand how your scanner operates.
BANK A
indicates the bank group. The numbers show which
channel-storage banks are turned on for scanning.
TRUNK
tion and while you store a trunking frequency into a
channel.
received trunking frequency or a data frequency whil e
trunking; they appear when you select a service search.
P
BATT. Lo
DATA
appears when the disconnect tone detect function is off
in the trunking mode.
SCAN
LIST
Numbers with a bar under them show which ID scan list
banks are turned on for scanning.
SEARCH
searches, and blinks when you monitor IDs.
or B — appears with numbers (1–10). A or
— appears when you select the trunking opera-
(trunking channel activity bars) — each represents a
— appears when you select a priority channel.
— blinks when the scanner’s battery is low.
— appears when the data skip function is active;
— appears when you scan channels.
— appears with numbers (1–5) during trunking.
— appears during limit, direct, service, and ID
B
PRI
— appears when the priority feature is turned on.
HOLD
— appears during limit, direct, service, and ID
searches, and ID monitor holds; flashes while the scanner is temporarily monitoring a programmed ID.
22
20-524.fm Page 23 Tuesday, August 31, 1999 3:55 PM
DLY
— appears when you select a delay.
L/O
— appears when you manually select a channel
you locked out.
K/L
(keylock) — appears when you lock the keypad.
Error
MON
itor, program ID monitor, or when you select a monitor
memory. The number to the right of this indicator shows
the current monitor memory.
MAN
channel number or frequency
PGM
channel, while you enter a frequency range during a
limit search, or when you program trunking frequencies,
fleet maps, or ID memories while trunking.
HYPER
active during a direct or limit search.
W or V
searches, indicating the search direction.
(during conventional scanning only).
WX HAM MRN AIR POL
cator which shows the current service bank during a
service search.
— appears when you make an entry error.
— appears during search modes, ID search mon-
— appears when you press
— appears while you store a frequency into a
— appears while Hyperscan or Hypersearch is
— appears during a limit, direct, or service
S
— appears when the battery save function is active
— appears along with an indi-
MAN to directly enter a
.
ALERT
or flashes when the scanner detects an alert coded signal.
M
tem or EDACS (ME) system.
CH
which channel the scanner is tuned to.
— appears when the weather alert is turned on,
or ME — indicate either a Motorola (M) trunking sys-
— appears with a number to its left to indicate to
23
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