Radio Shack TRC-239 User Manual
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Cat. No. 21-1628
OWNER’S MANUAL
Please read before using this equipment.
TRC-239
40-Channel, 4-Watt
CB Walkie-Talkie
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FEATURES
Your RadioShack TRC-239 40-Channel, 4-Watt CB
Walkie-Talkie is a portable, easy-to-use, two-way radio that you can carry almost anywhere. It will give
you reliable co mmunicati ons in many di fferent app lications.
You can use your TRC-239 around the house, in
your office , car or boat or anywhere on the go. It is
useful on fishing and camping trips. Or in your business for security patrols, for supervisors, or warehouse personnel.
Its features include:
Maximum Allowab le Power
— lets you transmit at
the maximum legal level for the best range possible.
Flex Antenna
— lets you transmit conveniently in
confined quarters.
Selectable Transmit Power
— lets you adjust the
output power to save battery power during shortrange transmissions.
TX/BATT (Transmit/Battery Low) Indicator
—
lights when the TRC-239 transmits and when you
should replace or recharge the batteries.
Long Battery Life
— reduces the need for replace-
ment or recharging. Extends your talk-time.
Built-in Charging Jack
— lets you re cha rge op ti onal nickel-cadmium (Ni-Cd) or nickel-metal hydride
(Ni-MH) batteries inside the TRC-239.
©
2000 Tandy Corporation.
RadioShack and Adaptaplug are registered trademarks
All Rights Reserved.
used by Tandy Corporation.
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Rotary Volume and Squelch Controls —
mean
faster, easier operation under virtually any condition.
Automatic Modulation Limiter
— prevents over-
modulation to ensure a clear sound.
Automatic Noise Limiter
— reduces noise caused
by nearby electrical equip ment such as motors or automotive ignition systems.
CHARGE Indicator
— lights to indicate that the
TRC-239 is charging your optional rechargeable batteries.
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FCC INFORMATION
The Federal Communications Commission (FCC)
does not require you to have a license to ope rate thi s
CB. Howeve r, the FCC does req uire that you read
and know Part 95 of
the operation of a Class D CB. We have provided a
copy of these regulations with your CB.
FCC Rules
. These rules apply to
Warning:
adjustments. Any internal adjustments can be made
only by an authorized service technician.
Unauthorized internal adjustments and/or modifications can lead to illegal operation as defined by Part
95 of FCC Rules. Such illegal operation can lead to
very serious consequences. To be safe and sure:
Your CB might cause TV or radio interference even
when it is operating properly. To determine whether
your CB is causing the interference, turn off your CB.
If the interference goes away, your CB is causing it.
Try to eliminate the interference by either moving
your CB away from the receiv er or c ontact ing yo ur local RadioShack store for help. If you cannot eliminate the interference, the FCC requires that you stop
using your CB.
Do not open your CB to make any internal
• Never open your CB’s case.
• Never modify your CB.
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CONTENTS
Preparation ........................................................... 6
Powering the CB ............................................. 6
Using the POWER Jack and
NI/AL Switch ............................................ 6
Using Batteries ............................................... 7
Using Non-Rechargeable Batteries ......... 7
Using Rechargeable Batteries ................. 8
Charging Tips ..................................... ..... 9
Using Vehicle Battery Power ........................ 10
Using AC Power ............................................ 11
Connecting the Antenna ............................... 12
Connecting an Optional Antenna .......... 13
Operation ............................................................ 15
Receiving Transmissions and
Adjusting Squelch ......................................... 15
Transmitting .................................................. 15
CB Operation Tips ............................................. 17
Typical Uses For a CB Radio ....................... 17
Business Uses ...................................... 17
Personal Uses ....................................... 17
CB Courtesy .......................................... 18
Using Common 10-Codes ................................. 19
Maximum Range .......................................... 21
Care and Maintenance ....................................... 22
Specifications .................................................... 23
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PREPARATION
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 (u sin g a n o pti ona l ad ap ter)
Using the POWER Jack and NI/AL
Switch
POWER
The
source (such as your v ehi cl e’s bat tery ) or an ex terna l
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 any thing to
rectly.
jack lets you connect an external power
POWER
, you must set
NI/AL
cor-
R
FCC ID: AAO2101678
SERIAL
NUMBER
CUSTOM MANUFACTURED IN THAILAND
FOR RADIOSHACK. A DIVISION OF TANDY
CORPORATION. FORT WORTH. TEXAS 76102
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received,
Operation is subject to the following two conditions:
This device complies with Part 15 of FCC Rules.
Follow these steps to set
AA
AAAA
including interference that may cause undesired operation.
NI/AL
.
AL
NI
1. Slide the battery com partme nt cover i n the d irection of the arrow to remove it.
2. Remove any installed batteries.
NI/AL
3. Set
• Set it to
as follows:
AL
to use alkaline batteries.
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NI/AL
•Set
inside the TRC-239
to NI to use rechargeable batteries
Warning:
TRC-239, connect a battery charger to
when using Ni-Cd or Ni-MH batteries.
To avoid injuring yourself or damaging the
POWER
only
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 instal l non-rec hargea ble bat teries.
1. Slide the battery com partme nt cover i n the d irection 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.
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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 burn or bury them.
Caution:
If you do not plan to use the TRC-239 with
internal batteries f or seve ral 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 as RadioShack Cat. No. 23-349 (not supplied).
Or you can use an optional external battery charger
(not supplied).
Warning:
teries. They might get very hot and they could explode.
Follow these steps to charge nickel-cadmium or
nickel-met al hydride b atteries in t he TRC-239’ s battery compartment.
1. Rotate
2. Set the battery charger’s Ni-Cd/Ni-MH selector
3. Insert the charger's barrel plug into the TRC-
Do not try to charge non-rechargea ble bat-
VOLUME
upward until it clicks.
switch to the appropriate position.
239’s
POWER
jack.
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