RadioShack Pro 94 Handheld Scanner Owners Manual

11
3. Before you install alkaline or any other non-
rechargeable batteries, use a pointed object
such as a ballpoint pen to set 
ALKALINE   JACK
 NI-CD 
inside the compartment to ALKALINE.
Warning:
 Set 
ALKALINE  JACK  NI-CD to NI-CD
for use only with nickel cadmium (Ni-Cd) or nickel
metal hydride (Ni-MH) rechargeable batteries. 
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...

12
When BATT.Loflashes 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 batter-
ies, you must charge them .
The scanner has a built-in circuit that lets you recharge
Ni-Cd and Ni-MH batteries while they are in the scan-
ner. To charge the batteries, set 
ALKALINE  JACK...

13
Important:
 This scanner can use
nickel-cadmium rechargeable batter-
ies. At the end of a nickel-cadmium
batterys useful life, it must be recy-
cled or disposed of properly. Contact
your local, county, or state hazardous
waste management authorities for in-
formation 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,...

14
Follow these steps to use the PRO-94 on AC power.
1. Turn 
VOLUME/OFF counterclockwise until it clicks
to make sure the power is turned off.
2. Insert the Adaptaplug into the adapter’s cord so it
reads TIP –
. 
Insert the Adaptaplug into the PRO-
94’s 
POWER 9V 300MA jack. 
3. Plug the adapter into a standard AC outlet.
If rechargeable batteries are installed and 
ALKALINE 
JACK   NI-CD
 is set to NI-CD, the adapter powers the
scanner and recharges the installed batteries at the
same time.
USING...

15
• 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 –. 
Insert the Adaptaplug into the PRO-
94’s 
POWER 9V 300MA jack.
4. Plug the adapter’s barrel plug into your scanner’s...

16
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 an-
tenna 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...

17
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 perma-
nent hearing loss. 
• Set the volume to the lowest setting before you
begin listening. After you...

18
CONNECTING AN EXTENSION 
SPEAKER
In a noisy area, an optional extension speaker, posi-
tioned in the right place, might provide more comfort-
able listening. Plug the speaker cable’s 
1/8-inch (3.5-
mm) mini-plug into your scanner’s  jack. Your local
RadioShack store carries a selection of suitable speak-
ers.
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 screw-
driver and the supplied screws to attach the clip to the...

19
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
. For more information about trunked
transmissions see “Trunking Operation” on Page 41.
A frequency,...

20
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 in-
formation about those functions.
Key Function(s)See 
Page(s)
A/B HOLD
Switches the bank groups; holds 
the frequency search; holds the 
current ID in the trunking mode26, 28, 
49
SCAN
Scans the stored channels, and 
scan lists22, 31, 
54
MAN 
Stops scanning and lets you 
directly enter a channel number or...