21-1620
21-162 0.fm Page 1 Thursday, August 5, 1999 11:16 AM
OWNER’S MANUAL Cat. No. 21-1620
TRC-235
2 Watt 3-Channel
CB Walkie-Talkie
Please read bef ore using this equipment.
21-162 0.fm Page 2 Thursday, August 5, 1999 11:16 AM
FEATURES
Your RadioShack TRC-235 2 Watt 3Channel CB Walkie-Talkie is a portable,
two-way radio you can carry almost anywhere. You can use your TRC-235
around the house, in you r office, or in your
car or boat. You can also use it on fishing
and camping trip s, or at your business for
supervisory, security, or warehouse personnel.
Your TRC-235 has the foll owing features:
Factory-Inst alled Crystals
— let you immediately begin using your TRC-235 on
Channel 14.
Three-Channel Opera tion
— comes wit h
Channel 14 crystals instal led, but lets you
install optional crystals so you can operate the TRC-235 on any two of the other
39 available CB channels. (See “Adding
Crystals” on Page 24).
Built-In Modulation Limiter Circuit
—
automatically adjusts to a variety of voice
levels to ensure a clear transmission.
Crystal-Cont rolled Circuitry
— provides
accurate and stable channel selection.
Adjustable Squelch
— helps to eliminat e
noise between transmissions.
Telescoping Ante nna
— provides excel-
lent reception and transmission.
External Antenna Jack
— lets you connect an external antenna (no t suppli ed) to
your TRC-235 for mobile or base-station
use, or to extend the TRC-235’s range.
Battery Test Button a nd Batte ry Indi cator
— lets you check the batteries’ condi-
tion.
©
1997 Tandy Corporation.
All Rights Reserved.
RadioShack is a registered trademark
used by Tandy Corporation.
2
21-162 0.fm Page 3 Thursday, August 5, 1999 11:16 AM
Power/Charging Jack — lets you power
your TRC-235 from an AC or DC power
source, so y ou can u se t he TRC-23 5 with out draining the batteries. And, lets you
charge nickel-cadmium batteries without
removing them from the TRC-235.
Note: You need eight AA alkaline batteries or ten nickel-cadmium rechargeable
batteries (not supplied) to power your
TRC-235.
We recommend you record the TRC235’s serial numbe r here. The serial
number is located on the radio’s back
panel:
FCC INFORMATION
The Federal Communications Commission (FCC) does not require you to hav e
a license to operate this walkie-talkie.
However, the FCC does require that you
read and know Part 95 of
These rules apply to the operation of a
Class D CB. We have provided a copy of
these regulations with your TRC-235.
Internal adjustments and/or modifications
can lead to illegal operation as defined by
Part 95 of
can lead to very serious consequences.
To be safe and sure:
• Never open your TRC-235’s case
• Never modify your TRC-235.
FCC Rules
except to install or change crystals.
. Such illegal operation
FCC Rules
.
3
21-162 0.fm Page 4 Thursday, August 5, 1999 11:16 AM
Your TRC-235 might cause TV or radio
interference even when it is operating
properly. To determine whether your
TRC-235 is causing the interference, turn
off your TRC-235. If t he interference goes
away, your TRC-235 is causing it. Try to
eliminate the interference by:
• Moving your TRC-235 away from the
TV or radio
• Contacting your local RadioShack
store for help
Warning: Do not open your TRC-235 to
make any internal adjustments other than
installing or changing crystals. Any internal adjustments should be made only by
authorized ser vice personnel.
4
21-162 0.fm Page 5 Thursday, August 5, 1999 11:16 AM
CONTENTS
Powering the CB ................................ 6
Using the POWER Jack and
ALKALINE/NI-CD Switch................... 6
Using Batteries ................................. 7
Testing the Battery Power .......... 10
Recharging Nickel-Cadmium
Batteries ..................................... 10
Using Vehicle Battery Power........... 12
Using AC Power ............................. 13
External Antenna .............................. 15
Operation .......................................... 17
Receiving Transmissions and
Adjusting Squelch .............. .......... .. 17
Transmitting .................................... 19
CB Operation Tips ........................... 20
Common Uses for a CB Radio ....... 20
Business Uses ........................... 20
Personal Uses ........................... 20
Using Common 10-Codes .............. 21
CB Courtesy ................................... 23
Maximum Range ......... .. .......... ....... 23
Adding Crystals ............................... 24
Trou bleshooting ........ .. ............ .. ....... 28
Maintenance ..................................... 29
Specifications .................................. 30
5
21-162 0.fm Page 6 Thursday, August 5, 1999 11:16 AM
POWERING THE CB
You can power your TRC-235 from any of
these sources:
• Eight AA alkaline batteries (not supplied) with two dummy batteries
(supplied)
• Ten rechargeable AA nickelcadmium batteri es (not supplied)
• 12-volt vehicle battery power using a
fused power cord (not supplied)
• Standard AC power using a power
supply (not supplied)
USING THE POWER JACK
AND ALKALINE/NI-CD
SWITCH
POWER
The
ternal power source (such as your vehicle’s batter y powe r or AC powe r) to power
the TRC-235, or connect a battery charger to charge nickel-cadmium batteries
while they are in the TRC-235.
jack lets you connect an ex-
The TRC-235 also has a slide switch (
KALINE/NI
partment which you must set correctly,
depending on what power source you are
using and whether or not you want to
charge rechargeable batteries while they
are in the TRC-235.
6
CD
) inside the battery com-
–
AL-
21-162 0.fm Page 7 Thursday, August 5, 1999 11:16 AM
•Set it to
ALKALINE
before you connect an external power source (vehicle battery power or AC adapter) to
POWER
the
jack or while you are using internal batteries (alkaline or rechargeable).
•Set it to
NI–CD
only
when you are
connecting a batt ery charger in order
to charge the installed rechargeable
batteries. Be sure you set it to
before
you connect a battery ch arger
POWER
to the
Warning
: To avoid injuring yourself or
jack.
NI–CD
damaging the TRC-235, connect a battery charger to the
POWER
jack
only
when nickel-cadmium batteries are installed (see “ Recha rging Ni ckel-C admium
Batteries ” on Page 10). Never try to recharg e non- rechargeable batteries. They
could get very hot and explode.
Note:
You can connect an external power source regardless of the type of batteries you installed.
USING BAT TERIES
You can power the TRC-235 from eight
AA alkaline batteries (such as RadioShack Cat. No. 23-552) with the two
supplied dummy batteries, or ten rechargeable AA nickel-cadmium batteries
(such as Cat. No. 23-125).
7
21-162 0.fm Page 8 Thursday, August 5, 1999 11:16 AM
Cautions:
• Always us e fresh, or freshly charged,
batteries of the required size and
type.
• Do not mix old and new batteries,
different types of batteries (standard, alkaline, or rechargeable
nickel-cadmium), or rechargeable
batteries of dif ferent capacities.
Follow these steps to ins tal l the batteries.
1. If the TRC-235 is on, turn
OFF/VOLUME
fully counterclockwi se until it cl icks to
turn it off.
2. Slide the strap on the back of the
TRC-235 through the buckle and the
battery compartment cover to remove it.
3. Slide the battery compartment cover
in the direction of the arrow to
remove it.
8
21-162 0.fm Page 9 Thursday, August 5, 1999 11:16 AM
4. Be sure
batte ry co mpartm ent is set to
LINE
ALKALINE/NI–CD
.
inside the
ALKA-
5. Put eight AA alkaline batteries and
the two supplied dummy batteries, or
ten AA nickel-cadmium batteries into
the battery compartment, as indicated by the polarity symbols (+ and
–) marked inside.
Note
: Before you use the TRC-235
with nickel-cadmium batteries, you
need to charge the batteries (see
“Recharging Nickel-Cadmium Batteries” on Page 10).
6. Replace the battery compartment
cover and the strap on the back of
the TRC-235.
Cautions
:
• If you will not be usin g the T RC-235
from battery power for several
months, remove the batteries.
• Dispose of old batteries promptly
and properly.
9
21-1620.fm Page 10 Thursday, August 5, 1999 11:16 AM
Testing the Battery Power
1. Turn on the TRC-235 by rotating
OFF/VOLUME
2. Hold down
tor lights, there is enough battery
power to operate the CB. If the indicator is dim or does not l ight, replace
or recharge the batteries.
clockwise until it clic ks.
BATT TEST
. If the indic a-
Recharging Nickel-Cadmium
Batteries
You can use a battery charger, such as
Cat. No. 23-249 (not supplied), to charge
or recharge nickel-cadmium batteries
while they are inside the TRC-235’s battery compartment.
Do not use the TRC-235 while you are
charging the nickel-cadmium batteries.
Cautions
:
• Use only the recommended battery
charger to recharge the batteries in
the TRC-235. Other chargers could
damage your TRC-235 or the batteries.
• Be careful not to overcharge nickelcadmium batteri es.
• To prevent damage to rechargeable
nickel-cadmium batteries, never
charge them in an area where the
temperature is above 90°F (32°C) or
below 40°F (4.5°C).
10
Loading...