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OWNER’S MANUAL Cat. No. 21-1620
TRC-235
2 Watt 3-Channel
CB Walkie-Talkie
Please read bef ore using this equipment.
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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.
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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
.
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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.
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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
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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-
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•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).
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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.
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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.
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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).
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Follow these steps to charge nickelcadmium batteries in the TRC-235.
1. If the TRC-235 is on, turn
OFF/VOLUME
fully counterclockwi se until it cl icks to
turn it off.
ALKALINE/NI–CD
2. Set
tery compartment to
inside the bat-
NI–CD
(see “Using the Power Jack and Alkaline/NICD Switch” on Page 6).
3. Connect the battery charger’s barrel
plug to the
POWER
jack on the side
of the TRC-235, then plug the battery charger’s plug into a standard
AC outlet.
It takes about 20 hours to charge
new or fully discharged nickelcadmium batteries. Subsequent
charges take about 14 to 16 hours.
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4. When charging is complete, unplug
the battery charger’s plug from the
AC outlet. Then, disconnect the battery charger’s barrel plug from the
POWER
Note:
(such as Cat. No. 23-134, not supplied) to rech arge the nickel-cadmium
batteries. After removing the batteries
from the TRC-235, follow the instructions
that come with the external charger.
jack.
You can use an external charger
Important
using nickel-cadmium batteries. At the end
of the batteries’ useful life, they must be recycled or disposed of properly. Contact
your local, county, or state hazardous
waste management authorities for information on re cycling or di sposal progr ams 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.
: Your TRC-235 is capable of
USING VEHICLE BATTERY
POWER
You can power your TRC-235 from your
vehicle’s cigarette-lighter socket with an
optional 12-volt DC fused power cord
(such as Cat. No. 270-1533).
• You must use a DC fused cord that
supplies 12 volts and delivers at
least 1000 milliamps of vehicle
power. Its center tip must be set to
positive, and its plug must correctly
fit the TRC-235’s
recommended fused cord meets
these specifications. Using a fused
cord that does not meet these specifications could damage the TRC-235
or the fused cord.
POWER
jack. The
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• When you finish using the TRC-235,
unplug the fused cord from the cigarette-lighter socket before you disconnect it from your TRC-235.
1. If the TRC-235 is on, turn
UME
fully counterclockwise until it
OFF/VOL-
clicks to turn it off.
2. Be sure
battery compartment is set to
LINE
ALKALINE/NI–CD
.
inside the
ALKA-
3. Insert the power cord’s 5.5 mm outer
diameter/2.1 mm inner diameter barrel plug into the
POWER
jack.
4. Plug the power cord’s other end into
your vehicle’s cigarette-lighter socket.
Note:
If the TRC-235 does not operate when you use the DC power
cord, unplug the cord from the cigarette-lighter socket and clean any
ashes or debris from the socket. If
your TRC-235 still does not work,
check the fuse in the DC power cord
and replace it if necessary.
USING AC POWER
You can power your TRC-235 from standard AC power using an optional 12-volt
AC adapter that provides 1 amp, such as
RadioShack Cat. No. 273-1653.
Cautions:
• The adapter must be able to deliver
12 volts and at least 1 amp, its center tip must be set to positive, and
the barrel plug must correctly fit the
TRC-235’s
POWER
jack. The recommended adapter meets these specifications. Using an adapter that does
not meet these specifications could
damage the TRC-235 or the adapter.
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• To help prevent an electrical short,
unplug the adapter from the AC outlet before you unplug the adapter
from the TRC-235.
Follow these steps to connect the TRC235 to AC power.
1. Connect the adapter’s 5.5 mm outer
diameter/2.1 mm inner diameter barrel plug to the adapter’s cord, setting
TIP to + (positive)
2. Be sure
battery compartment is set to
LINE
ALKALINE/NI–CD
.
inside the
ALKA-
3. Connect the adapter’s barrel plug to
the TRC-235’s
POWER
jack.
4. Plug the other end of the adapt er int o
a standard AC outlet.
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EXTERNAL ANTENNA
Your walkie-talkie comes with a telescoping antenna that is ideal for most applications. However, the walkie-talkie’s
ANTENNA
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 basestation antenna and its location, consider
the follow ing:
• The location of the antenna should
• The antenna and antenna cable
• The antenna should be vertical for
jack makes it easy to connect
be as high as possible.
should be as far as possible from
sources of electrical noise (appliances, other radios, and so on).
the best performance.
EXT
Notes
:
• When connecting an optional antenna, always use 50-ohm coaxial
cable, such as RG-58 or RG-8. For
lengths o ver 50 feet, use RG-8 lowloss dielectric coaxial cable. If the
coaxial cable’s c onnector d oes no t fit
into the
also need a PL-259-to-phono
antenna plug adapter, such as Cat.
No. 278-2 08. Yo ur local RadioShack
store carries a wide variety of coaxial
antenna cable and connectors.
EXT ANTENNA
jack, you might
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• For the best performance when you
use an external antenna, do not
extend the TRC-235’s telescoping
antenna.
Follow the installation instructions supplied with the antenna, route the antenna
cable to the TRC-235, then connect it to
EXT ANTENNA
the
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 over head power lin es.
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 t o remove
the antenna. DO NOT attempt to do so
yourself.
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OPERATION
Before you use your TRC-235, we recommend you read “CB Operation Tips” on
Page 20, which contains information to
help you use it effectively and courteously.
RECEIVING
TRANSMISSIONS AND
ADJUSTING SQUELCH
1. If you did not connect an external
antenna, fully extend the TRC235’s telescoping
antenna and hold
the TRC-235 so
the antenna is vertical.
Caution:
tenna is attached, you should fully
extend the antenna for maximum
efficiency.
2. Set
Note
Channel 14 crystals installed in
channel position A. To use other
channels, you must first install crystals in channel positions B and C
inside the TRC-235 (see “Adding
Crystals” on Page 24).
Unless an external an-
CHANNEL
: Your TRC-235 comes with
to A, B, or C.
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3. T urn on the TRC-235 by turn ing
VOLUME
clockwise until you hear a
click and a hissi ng sound.
Note:
You might not hear a hissing
sound if
CHANNEL
is set to B or
and you haven’t installed any crystals in channel positions B or C.
4. Adjust
OFF/VOLUME
to a comfortabl e
listening level.
5. Adjust
SQUELCH
to cut out the background noise. To do this, wait until
there is no signal on the channel.
Then slowly turn
SQUELCH
wise until the background noise
stops.
Note
: Do not turn
SQUELCH
too far
clockwise because you might also
cut out weak signals.
6. To turn off the TRC-235, turn
VOLUME
toward
OFF
until it click s.
OFF/
C
clock-
OFF/
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TRANSMITTING
1. Follow Steps 1–5 in “Receiving
Transmissions and Adjusting
Squelch” on Page 17.
2. Hold the TRC-235 2 to 3 inches from
your mouth. Hold down
on the side of the TRC-235
TALK
and speak in a normal voice into the
microphone.
PUSH TO
Microphone
When you finish speaking, release
the button.
Note
: Do not speak too loudly when
transmitting. It does not make your
signal any stron ger, and might distort
your transmission.
Important
: Channel 9 is reserved for
motorist assistance and for reporting
emergency information about accidents, hazardous road conditions,
and so on. If you have installed the
necessary crystals in your TRC-235
and you are using Channel 9, always
give emergency messages priority.
3. To turn off the TRC-235, turn
VOLUME
toward
until it clic ks.
OFF
OFF/
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CB OPERATI ON TIPS
The following tips will help you get the
most enjoyment from your TRC-235.
COMMON USES FOR A CB
RADIO
Business Uses
• Truck drivers and delivery personnel
can learn road and traffic conditions
and get assistance in locating destinations. A walkie-talkie is also good
company on those “long hauls.”
• On construction crews, a walkietalkie qui ckly pays for itself when you
are calling for additional materials or
coordinating the activities of different work crews.
• For security officers, a walkie-talkie
is more than a convenience — it is a
must for both safe ty and efficiency.
Personal Uses
• Keep in touch with home while driving to work, to the store, or to a
social activity. Let your family know
you are tied up in traffic or that you
will stop by the store on the way
home.
• If you are a two-car (or more) family,
walkie-talkies are great for communicating with family members while
they are in their cars.
• Contact friends or neighbors — find
out “what’s happening” or plan a gettogether.
• Ever have car trouble or run out of
gas on the highway? What an assurance it is to be able to radio for a ssistance.
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• Camping, fishing, and other sports
are more fun with a walkie-talkie.
Locate a friend or find out “what’s
cooking” back at camp.
USING COMMON
10-CODES
Citizen’s band operators have largely
adopted the 10-codes for standard questions and answer s. Thei r use per mit s fast er communication and better intelligibility
in noisy areas.
This table lists the codes adopted by the
Associated Public Safety Communications Officers (APCO).
Code Meaning
10-1 Cannot understand your mes-
sage.
10-2 Your signal is good.
10-3 Stop transmitting.
10-4 Messag e r ec ei ve d and unde r-
stood.
10-5 Relay informa tio n to ______ __ _.
10-6 I am busy.
10-7 Out of service.
10-8 In service.
10-9 Repeat last message.
10-10 Negative (No).
10-11 _____________ in s ervice.
10-12 S tand by.
10-13 Report ___________ conditions.
10-14 Information.
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Code Meanin
10-15 Message delivered.
10-16 Reply to message.
10-17 En route.
10-18 Urgent.
10-19 Cont a ct ______ __ __ .
10-20 My location is __ __ __ __ __ .
10-21 Call ________ by telephone.
10-22 Can ce l la st me s sa ge.
10-23 Arrived at the scene.
10-24 Assignment complete.
10-26 Estimated time of arrival is ____.
10-30 Use caution.
10-31 Pick up.
10-33 Emergency traffic. Clear the
channel.
10-34 The time is _____.
Note: Although this table lists the 10codes’ meanings in the form of a statement, they can also be phrased as questions (10-6: Are you busy?, 10-20: What is
your location?).
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CB COURTESY
• Wait for a pause in someone else’s
transmission before you ask for a
break.
• If you do not receive an answer to
your call afte r a second attempt, sign
off and wait several minutes before
trying again.
• Do not hold down
when you are not talking. (This is
called
dead keying
• Assist callers with directions, information about road conditions, and
any other reasonabl e requests.
PUSH TO TALK
.)
MAXIMUM RANGE
The maximum range and quality of CB
transmissions vary depending on these
conditions:
• Amount of power in the batteries
• The surrounding terrain — mountains and tall buildings limit the range
• Weather conditions
• The number of nearby CBs operating
on the same channel
To ensure maximum range, always keep
fresh alkaline batteries or fully charged
nickel-cadmium batteries in your TRC235 when using battery power.
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ADDING CRYSTALS
Your TRC-235 includes two crystals
(transmit and receive) i nstalled in channel
position A. Th e c rysta ls l et y ou use the CB
on channel 14. You can add two more
crystals in channel positions B and C so
you can use any two other channel s of the
40 allotted to CBs. However, you must
use only crystals specifically designed for
the TRC-235, available from your local
RadioShack store. Be sure to specify the
channel you want and the TRC-235’s catalog number (Cat. No. 21-1620).
Note:
Channel A crystals are soldered in,
and can be replaced only by a qualified
techni cian.
The following chart shows the frequency
pairs (in
ting on each CB channel.
MHz) for receiving and transmit-
Note
: Receive crystals use a frequency
455 kHz lower than transmit crystals.
Channel Transmit Receive
1 26.965 26.510
2 26.975 26.520
3 26.985 26.530
4 27.005 26.550
5 27.015 26.560
6 27.025 26.570
7 27.035 26.580
8 27.055 26.600
9 27.065 26.610
10 27.075 26.620
11 27.085 26.630
12 27.105 26.650
13 27.115 26.660
14 27.125 26.670
15 27.135 26.680
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Channel Transmit Receive
16 27.155 26.700
17 27.165 26.710
18 27.175 26.720
19 27.185 26.730
20 27.205 26.750
21 27.215 26.760
22 27.225 26.770
23 27.255 26.800
24 27.235 26.780
25 27.245 26.790
26 27.265 26.810
27 27.275 26.820
28 27.285 26.830
29 27.295 26.840
30 27.305 26.850
31 27.315 26.860
32 27.325 26.870
33 27.335 26.880
34 27.345 26.890
35 27.355 26.900
36 27.365 26.910
37 27.375 26.920
38 27.385 26.930
39 27.395 26.940
40 27.405 26.950
Note: A crystal is marked with its frequency.
Follow these steps to change or install
crystals in you r TRC -235.
1. If the TRC-235 is on, turn
fully counterclockwise until it
UME
OFF/VOL-
clicks to turn it off.
2. Remove the batteries (if installed).
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CHANNEL
3. Set
under the right edge of
then
carefully
to A, slide your thumb
CHANNEL
CHANNEL
pull
up to
,
remove it.
4. Use a Phillips screwdriver to remove
the back cover’s thr ee screws.
Caution:
The
BATT TEST
button
might come off of the front of the
TRC-235 when you remove the front
cover. If this happens, simply replace
it.
5. Firmly gra sp the TRC-235’ s front and
back cover’s sides and
caref ully
the front cover away from the back
cover.
26
pull
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6. Insert a new matched pair of crystals
(send and receive) into the sockets
for Channel B or C.
The sockets for the crystals are
marked next to Channel A on the circuit board with X1 (receive) and X2
(transmit). The channel’s letter (A, B,
or C) is marked on the circuit board
and on the diagram below.
Important: Be sure you install the
receive (R) and transmit (T) crystals
in their correct sockets. Do not
reverse the transmit and receive
crystals. If you do, the TRC-235 will
transmit and receive on frequencies
outside the citizen’s band, resulting
in illegal operat ion.
(some circuit r
details left out
for clarit
)
Channel C Channel B Channel A
7. When you have finished installing
new crystals, carefully fit the TRC235’s front cover to the back cover
and gently squeeze them together.
Make sure the BATT TEST indicator
shows through the front of the TRC235 when you reassemble it .
8. Replace
CHANNEL
on the front of the
TRC-235, the back cover’s three
screws, the batteries (if installed)
and the battery compartment cover,
then replace the strap.
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TROUBLESHOOTING
If your TRC-235 is not working as it
should, follow these suggestions to see if
you can elimina te the pr oblem. I f you cannot, take i t to your loc al RadioShack store
for assistance.
Symptom Suggestion
Weak, bad,
or no reception.
Troubl e with
transmission
Be sure the TRC-235
is turned on.
Be sure the volu m e is
turned up.
Be sure th e a ntenna is
fully extended.
Be sure the batteries
are not weak (see
“Testing the Battery
Power” on Page 10).
Be sure you are not
pressing
TALK
Be sure
set to
PUSH TO
.
CHANNEL
A
if you hav e not
is
instal led addi ti o nal
crystals in the TRC-
235.
Be sure th e a ntenna is
fully extended.
Be sure you are fully
pressing
TALK
PUSH TO
.
28
Be sure the batteries
are not weak (see
“Testing the Battery
Power” on Page 10).
Be sure
set to
CHANNEL
A
if you have not
is
instal led addi ti o nal
crystals in the TRC-
235.
21-1620.fm Page 29 Thursday, August 5, 1999 11:16 AM
MAINTENANCE
Your RadioShack TRC-235 2 Watt 3Channel CB Walkie-Talkie is an example
of superior design and cr aftsmanshi p. The
following suggestions will help you care
for your TRC-235 so you can enjoy it for
years.
Keep the TRC-235 dry. If it
gets wet, wipe it dry i mmedi ately. Liquids might contain
minerals that can corrode
the electron ic circuits.
Handle the TRC-235 gently
and carefully. Dropping it
can damage circuit boards
and cases and can cause
the TRC-235 to work improperly.
Use and store the TRC-235
only in normal temperature
environments. Temperature
extremes can shorten the
life of electronic devices,
damage batteries, and distort or melt plastic parts.
Keep the TRC-235 away
from dust and dirt, which
can cause premature wear
of parts.
Wipe the TRC-235 with a
damp cloth occasionally to
keep it looking n ew. Do not
use hars h che mica ls, clea ning sol v ents , or s tro ng dete rgents to clean the TRC-235.
Modify ing o r ta mp eri n g wi t h t h e TR C- 23 5’ s
internal components can cause a malfunction and might invalidate your TRC-235’s
warranty an d void yo ur FCC auth oriza tion
to opera te it. If your TR C-235 is no t performing as it should, take it to your local
RadioShack store for assistance.
29
21-1620.fm Page 30 Thursday, August 5, 1999 11:16 AM
SPECIFICATIONS
Receiver
Frequency Coverage ... 26.965 – 27.405 MHz
Sensitivity (Maximum) ......................... 0.6 µV
Adjacent Channel Rejection ................. 45 dB
Squelch ......................... Adjustable from 1 µV
Audio Output (10% THD) ................. 400 mW
Current Drain ............................... 65
Supplied with Channel 14 receive
(26.670 MHz) and transmit (27.125 MHz)
crystals in the Channel A position
230 mA
–
T ran smi tte r
Frequency Coverage ... 26.965 – 27.405 MHz
Power Input (at 12V DC) ......................... 2 W
Power Output .......................................... 1 W
Spurious Emis si on ...................... ... .... . –70 dB
Type of Modulation ..................................... A3
Frequency Tolerance .......................... 0.003%
Antenna Impedance ................................ 50
3
Antenna Length (Maximum) .............. 42
Current Drain ........................... 260 to 450 mA
Dimensions (HWD) ....... 8
Weight ................................................ 14.5 oz
13
/
2
16
×
(224 × 72 × 54 mm)
(1076 mm )
13
/
2
16
×
(410 g)
/8 In.
1
/8 In.
Ω
Specifications are typical; individual units
might vary. Specifications are subject to
change and improvement without notice.
30
21-1620.fm Page 31 Thursday, August 5, 1999 11:16 AM
NOTES
31
g
y
y
g
y
g
y
g
y
y
g
g
y
y
g
g
y
y
y
g
g
y
y
g
g
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y g
y
21-1620.fm Page 32 Thursday, August 5, 1999 11:16 AM
Limited Ninety- Day Warranty
This product is warra nted by RadioShack against manufacturin
defects in material and workmanship under normal use for ninet
from RadioShack compan
RadioShack franchisee s and dealers. EXCE PT AS PROVIDED HEREIN, RadioShack MAKES NO EXPRESS
WARRANTIES AND ANY IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED
IN DURATION TO THE DURATION OF THE WRITTEN
LIMITED WARRANTIES CONTAINED HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL
HAVE NO LIABILITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH
RESPECT TO ANY LIABILITY, LOSS OR DAMAGE
CAUSED DIRECTLY OR INDIRECTLY BY USE OR
PERFORMANCE OF THE PRODUCT OR ARISING
OUT OF ANY BREACH OF THIS WARRANTY, INCLUDING, B UT NOT LIMI TED TO, A NY D AMA GE S RESU LTING FROM INCONVENIENCE, LOSS OF TIME, DATA,
PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, EVEN IF RadioShack HAS BEEN ADVISED
OF THE POSSIBILITY OF SUCH DAMAGES.
Some states do not allow the lim itations on ho w lon
implied warrant
consequential d ama
clusions ma
In the event of a prod uct de fect dur in
riod, take the product and the RadioShack sales receipt
as proof of purchase da te to an
dioShack will, at its o ption, u nles s othe rwise prov ide d b
law: (a) correct the defect by product repair without
char
e for parts and labor; (b) re place the product with
one of the same or similar desi
chase price. All replac ed parts and products, and products on which a refun d is made, bec ome the proper t
RadioShack. New or reconditioned parts and products
ma
be used in the performance of warranty service. Repaired or replaced par ts and products are w arranted for
the remainder of the ori
char
ed for repair or replacement of the product made after the expiration of the warrant
This warrant
caused b
misuse, impro per or a bnormal us a
structions, improper installation or maintenance, alteration, li
htning or other inci dence of excess voltage or
current; (b) an
RadioShack Authorized Service Facilit
such as fuses or batteries; (d) cosmetic dama
transportation, shippi n
product removal, i nstallation, set-up service ad
or reinstallation.
This warrant
also have other rights which vary from state to state.
RadioShack Customer Relations, Dept. W, 100 Throck-
morton St., Suite 600, Fort Worth, TX 76102
(90) days from the date of purchase
-owned stores and author ized
lasts or the exclusion of i ncidental or
es, so the above limita tions or ex-
not apply to you.
inal warranty period. You will be
does not cover: (a) damage or failure
or attributable to acts of God, abuse, accident,
repairs o ther than those pr ovided by a
or insurance costs; or (f) costs of
ives you specific legal rights, and you ma
the warranty pe-
RadioShack stor e. Ra-
n; or (c) refund t he pur-
period.
e, failure to follow in-
; (c) consumables
We Service What We Sell
an
of
e; (e)
ustment
3/97
RadioShack
A Division of Tandy Corporation
Fort Worth, Texas 76102
6A7 Printed in China
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