PRO-91 150-Channel Handheld Trunking Scanner
(200-0521A) Preparation Faxback Doc. # 51708
POWER SOURCES
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 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 Nickel-Cadmium Batteries" below).
Follow these steps to install batteries.
1. Turn VOLUME/OFF counterclockwise until it clicks to make sure the
power is turned off.
2. Slide up and hold the tab on the back of the scanner, then pull up the
battery compartment cover.
3. If you are installing alkaline batteries, use a pointed object such as
a pencil to set ALKALINE (<) JACK (>) Ni-Cd to Ni-Cd inside the
compartment to ALKALINE. Or, if you are installing nickel-cadmium
batteries, set it to Ni-Cd.
WARNING: Never set ALKALINE (<) JACK (>) Ni-Cd to Ni-Cd if you are
installing non-rechargeable batteries. Non-rechargeable
batteries can get hot or explode if you try to recharge
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 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.
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
ALKALINE (<) JACK (>) Ni-Cd to Ni-Cd, install the nickel cadmium batteries
in the scanner, and connect an external AC or DC adapter to the scanner's
POWER jack (see "Using AC Power" below or "Using Vehicle Battery Power"
below).
WARNING: Do not connect either adapter to the scanner if non-rechargeable
batteries (such as alkaline batteries) are installed in the
scanner and ALKALINE (<) JACK (>) Ni-Cd is set to Ni-Cd, or 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 nickel-cadmium batteries for the first time, charge them at
least 24 hours to bring them into a full charge.
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 degrees F or below
40 degrees F.
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 mail-back
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 center
negative tip that correctly fits the scanner's POWER jack.
Using an adapter that does not meet these specifications could
damage 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" above).
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 ALKALINE (<) JACK (>) Ni-Cd is
set to Ni-Cd, the adapter powers the 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
negative tip that correctly fits the scanner's POWER jack.
Using an adapter that does not meet these specifications could
damage the scanner or the adapter.
To protect your vehicle's electrical system, always plug the
adapter into the scanner before you plug it into your vehicle's
cigarette-lighter socket. Always unplug the adapter from the
vehicle's cigarette-lighter 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" above).
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 set ALKALINE (<) JACK
(>) Ni-Cd 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 adapter,
unplug the adapter from the cigarette-lighter socket and clean the
socket to remove ashes and debris.
CONNECTING THE ANTENNA
Follow these steps to attach the supplied flexible antenna to the
connector on the top of your scanner.
1. Align the slots around the antenna's connector with the tabs on the
scanner's BNC connector.
2. Slide the antenna's connector down over the 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 store sells a variety of antennas.
Note: Always use 50-Ohm coaxial cable, such as RG-58 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 coaxial
cable. If your antenna's cable does not have a BNC connector, your
local RadioShack store carries a variety of BNC adapters.
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 (headphone) 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/
head/phones let you hear some outside sounds when listening at normal
volume levels, they still can present a traffic hazard.
CONNECTING AN EXTENSION SPEAKER
In a noisy area, an extension speaker (such as Cat. No. 21-549),
positioned in the right place, might provide more comfortable listening.
Plug the speaker cable's 1/8-inch mini-plug into your scanner's
(headphone) 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 slide the clip over
your belt or waistband.
(RDS 03/11/1999)
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