TRC-239 40-Channel, 4-Watt CB Walkie-Talkie
(210-1628) Preparation Faxback Doc. # 58922
Powering the CB
You can power your TRC-239 from any of these sources:
Internal batteries (not supplied).
Vehicle battery Power (using an optional adapter).
Household AC power (using an optional adapter).
Using the POWER Jack and NI/AL Switch
The POWER jack lets you connect an external power source (such as your
vehicle's battery) or an external AC adapter (not supplied), or an
external charger (not supplied) to charge rechargeable batteries (not
supplied) while they are in the TRC-239. Before connecting anything to
POWER, you must set NI/AL correctly.
Follow these steps to set NI/AL.
1. Slide the battery compartment cover in the direction of the arrow to
remove it.
2. Remove any installed batteries.
3. Set NI/AL as follows:
Set it to AL to use alkaline batteries.
Set NI/AL to NI to use rechargeable batteries inside the TRC-239.
WARNING: To avoid injuring yourself or damaging the TRC-239, connect a
battery to POWER only when using Ni-Cd or Ni-MH batteries.
Using Batteries
Your TRC-239 can use 9 AA batteries (not supplied) for power. For the
best performance and longest life, we recommend RadioShack non-
rechargeable alkaline or rechargeable nickel-cadmium/nickel-metal hydride
batteries.
CAUTIONS: Use only fresh batteries of the required size and recommended
type.
Do not mix old and new batteries, different types of batteries
(standard, alkaline, or rechargeable) or rechargeable batteries
of different capacities or type.
Using Non-Rechargeable Batteries
Follow these steps to install non-rechargeable batteries.
1. Slide the battery compartment cover in the direction of the arrow to
remove it.
2. Place the batteries in the compartment as indicated by the polarity
symbols (+ and -) marked inside.
3. Replace the cover.
When the TX/BATT indicator lights steadily or the TRC-239 stops operating
properly, replace the batteries.
WARNING: Dispose of old batteries promptly and properly. Do not bury or
burn them.
CAUTION: If you do not plan to use the TRC-239 with internal batteries
for several months, remove the batteries. Batteries can leak
chemicals that can destroy electronic parts.
Using Rechargeable Batteries
Rechargeable batteries come fully discharged. Before you use them for the
first time, you must charge them. You can charge the batteries while they
are in the battery compartment using a battery charger, such a RadioShack
Cat. No. 23-349 (not supplied). Or you can use an optional external
battery charger (not supplied).
WARNING: Do not try to charge non-rechargeable batteries. They might get
very hot and they could explode.
Follow these steps to change nickel-cadmium or nickel-metal hydride
batteries in the TRC-239's battery compartment.
1. Rotate VOLUME upward until it clicks.
2. Set the battery charger's Ni-Cd/Ni-MH selector switch to the
appropriate position.
3. Insert the charger's barrel plug into the TRC-239's POWER jack.
4. Plug the charger's other end into a standard AC outlet.
It takes 14-16 hours to recharge Ni-MH batteries or 7-8 hours to
recharge Ni-Cd batteries that are fully discharged.
5. When the batteries are fully charged, unplug the charger from the AC
outlet, then disconnect the charger from the CB.
Charging Tips
Fully discharge Ni-Cd batteries occasionally by using the TRC-239 until
the TX/BATT indicator lights, then fully recharge the batteries. This
helps restore and maintain the ability of the batteries to take a maximum
charge. (This does not apply to Ni-MH batteries).
To prevent damage to rechargeable batteries, never charge them in an area
where the temperature is above 122 degrees F. (50 degrees C.) or below 32
degrees F. (0 degrees C.).
Do not overcharge batteries. Overcharging can severely reduce the
batteries' useful life.
Always disconnect the charger's AC plug before you disconnect the barrel
plug.
IMPORTANT: This CB 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. 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 Vehicle Battery Power
You can power the TRC-239 from a vehicle's 12V power source (such as
cigarette-lighter socket) using a fused DC power cord that ends in a size
M Adapt-a-plug adapter (neither supplied). Both are available at your
local RadioShack store.
CAUTIONS: You must use a power source that supplies 13.8 volts (12-volts
nominal) at 1300 mA. Its center tip must be set to positive
and its plug must fit the TRC-239's POWER jack. Using a power
source that does not meet these specifications could damage the
TRC-239 or the power cord.
Always connect the fused power cord to the TRC-239 before you
connect it to the power source. When you finish, disconnect the
fused power cord from the power source before you disconnect it
from the TRC-239.
If batteries are installed, make sure NI/AL inside the battery compartment
is set to the correct position (see "Using Batteries," above).
Follow these steps to connect the TRC-239 to your vehicle's battery power.
1. Plug the power cord's Adapt-a-plug into the TRC-239's POWER jack.
2. Connect the other end of the power cord to your vehicle's cigarette
lighter socket.
Using AC Power
You can power the TRC-239 using an optional DC power supply that provides
13.8 volts (12-volt nominal) at 1300 mA. You also need a fused power cord
that ends in a size M Adaptaplug adapter (neither supplied). Both are
available at your local RadioShack store.
CAUTIONS: You must use a power supply that supplies 13.8V DC and delivers
at least 1300 mA. Its fused connecting cord's center tip must
be set to positive and its plug must fit the TRC-239's POWER
jack. Using a power supply that does not meet these
specifications could damage the TRC-239, the power cord, or the
power supply.
Always connect the power supply to the TRC-239 before you
connect it to AC power. When you finish, disconnect the power
supply from AC power before you disconnect the power cord from
the TRC-239.
If batteries are installed for portable use, make sure NI/AL inside the
battery compartment is set to the correct position (see "Using Batteries,"
above).
Follow these steps to connect the TRC-239 to AC power.
1. Connect the Adaptaplug adapter to the power supply's cord, setting TIP
to + (positive).
2. Plug the barrel plug into the TRC-239's POWER jack.
3. Plug the power supply into a standard AC outlet, then turn on the
power supply before you turn on the TRC-239.
Connecting the Antenna
CAUTION: To prevent damage to your TRC-239, you must connect an antenna
before you operate it.
Follow these steps to attach the supplied flexible antenna to your
TRC-239.
1. Align the slots around the antenna's connector with the tabs on the
antenna jack on top of the TRC-239.
2. Press the antenna down over the jack and turn the antenna's base
clockwise until it locks.
To remove the antenna, turn the antenna's base counterclockwise until it
unlocks, then lift it off the antenna jack.
Connecting an Optional Antenna
The TRC-239 comes with a flexible antenna (equipped with a BNC connector)
that is ideal for most applications. However, the BNC connector makes it
easy to connect other types of antennas, too. For mobile or base station
use, you might want to connect an optional external antenna. Your local
RadioShack store carries a wide selection of external mobile or outdoor
base station antennas. Choose the one that best meets your needs.
When deciding on a mobile or base station antenna and its location,
consider the following:
The location of the antenna should be as high as possible.
The antenna and antenna cable should be as far as possible from sources
of electrical noise (appliances, other radios, and so on).
The antenna should be vertical for the best performance.
Note: When connecting an optional antenna, always use 50-Ohm coaxial
cable such as RG-58. For lengths over 50 feet, use low-loss RG-8
coaxial cable. When the cable terminates in a PL-259 connector,
obtain an adapter to fit the BNC connector.
Follow the installation instructions supplied with the antenna, route the
antenna cable to the TRC-239, then connect it to the antenna jack.
CAUTIONS: Do not run the cable over sharp edges or moving parts.
Do not run the cable next to power cables or other CB antenna
cables.
Do not run the cable through a vehicle's engine compartment or
other areas that produce extreme heat.
Follow all cautions and warnings included with the antenna.
WARNING: When installing or removing a base station CB antenna, use
extreme caution. If the antenna starts to fall, let it go! It
could contact overhead power lines. If the antenna touches the
power line, contact with the antenna, mast, cable, or guy wires
can cause electrocution and death! Call the power company to
remove the antenna. DO NOT attempt to do so yourself.
(EB 3/7/00)
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