Radio Shack Portable Radio TRC 401 User Guide

21-1588.fm Page 1 Thursday, August 5, 1999 10:05 AM  
Cat. No. 21-1588  
OWNER’S MANUAL  
Please read before using this equipment.  
TRC-401  
Portable Emergency CB Radio  
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Your CB might cause TV or radio in-  
terference even when it is operating  
properly. To determine if 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:  
FCC INFORMATION  
The Federal Communications Com-  
mission (FCC) does not require you  
to have a license to operate this CB.  
However, the FCC does require you  
to read and know Part 95 of FCC  
Rules. These rules apply to the oper-  
ation of a Class D CB. We have pro-  
vided a copy of these regulations  
with your CB.  
• Moving your CB away from the  
receiver  
• Contacting your local Ra-  
dioShack store for help  
Warning: Do not open your CB to  
make any internal adjustments. Inter-  
nal adjustments can be made only by  
authorized service personnel.  
If you cannot eliminate the interfer-  
ence, the FCC requires that you stop  
using your CB.  
Internal adjustments and/or modifi-  
cations 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:  
• Never open your CB’s case.  
• Never modify your CB.  
3
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CONTENTS  
Preparation ..................................................................................................... 5  
Attaching the Antenna ............................................................................... 5  
Connecting Power ..................................................................................... 6  
Operation ........................................................................................................ 7  
CB Operation Tips .......................................................................................... 8  
CB Courtesy .............................................................................................. 8  
Maximum Range ....................................................................................... 8  
Using Common 10-Codes ......................................................................... 9  
Common Uses for a CB Radio ................................................................ 10  
Business Uses .................................................................................. 10  
Personal Uses ................................................................................... 10  
Troubleshooting ............................................................................................ 11  
Reducing Noise ....................................................................................... 12  
Care and Maintenance ................................................................................. 13  
Replacing the Power Cord’s Fuse ........................................................... 14  
Specifications ............................................................................................... 15  
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PREPARATION  
tallic backing on the bottom of  
the magnetic base.)  
ATTACHING THE  
ANTENNA  
The supplied magnet-mount antenna  
is designed for use only in emergen-  
cy or low speed, short-driving situa-  
tions. If you want to use the CB while  
driving your vehicle at highway  
speeds, on long-distance trips, or  
during periods of high, gusty winds or  
heavy turbulence, you need an op-  
tional  
standard-mount  
antenna  
(available at your local RadioShack  
store). If you use a standard-mount  
antenna, you also need a plug adapt-  
er (Cat. No. 278-208) to connect the  
standard antenna’s PL-259 plug to  
ANT on your CB.  
Notes:  
• The base should have full sur-  
face contact with steel for the  
best possible range.  
Follow these steps to mount the sup-  
plied antenna.  
• To reduce wind force, place  
the base toward the back win-  
dow.  
1. Hold the antenna in an upright  
position and extend the antenna.  
3. Plug the magnetic base’s wire  
into the CB’s ANT jack.  
Note: Fully extend the antenna  
for maximum range.  
2. While your vehicle is stopped,  
place the base as near as possi-  
ble to the center of your vehi-  
cle’s highest flat surface with  
pointing toward the front of your  
vehicle. (Do not remove the me-  
5
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To remove the antenna from your ve-  
hicle, grasp the base and then firmly  
“peel” it up and off the vehicle’s sur-  
face.  
Notes:  
• If the CB does not operate prop-  
erly, check that the lighter socket  
is clean and free of ashes or  
other debris.  
Caution: Never slide the antenna’s  
magnetic base across your vehicle’s  
painted surface. Dust and dirt parti-  
cles might scratch your vehicle’s fin-  
ish.  
• If the CB still does not work,  
check the fuse in the power cord  
(see “Replacing the Power  
Cord’s Fuse” on Page 14).  
CONNECTING POWER  
Follow these steps to power the CB  
from your vehicle’s battery.  
1. Plug the barrel plug of the sup-  
DC 12V  
plied power cord into  
the bottom of the CB.  
on  
2. Ensure the cigarette-lighter plug  
cap is tightly screwed onto the  
plug and insert the plug into the  
cigarette-lighter socket.  
6
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OPERATION  
Before you start using your CB, we  
recommend you read “CB Operation  
Tips” on Page 8 which contains infor-  
mation that will help you use your CB  
effectively and courteously.  
3. To transmit, hold the CB 2–3  
inches from your mouth, hold  
down PUSH TO TALK, and speak  
directly into MIC (the built-in  
microphone). The TX (transmit)  
indicator lights.  
Note: Before you operate the CB, be  
sure it is connected to power and an  
antenna.  
In an emergency, broadcast  
your “CLIP”:  
Call sign — identify yourself  
Location — be exact  
Injuries — number of injured,  
type of injuries, and so on  
Problem — give complete de-  
tails. Give information calmly,  
clearly, and in as few words as  
possible  
For example, “This is John  
Smith at Highway 80 and Ale-  
meda Street. There is a two-car  
accident here with three injured  
adults needing emergency care.  
Please send an ambulance.”  
1. Turn VOLUME clockwise until it  
clicks to turn on the CB. The CB  
automatically tunes to Channel  
9, the emergency channel.  
4. When you finish transmitting, re-  
lease PUSH TO TALK. You now  
hear other transmissions on that  
channel (such as the response  
to your call). Adjust VOLUME to  
the desired listening level.  
2. Select another channel, if de-  
sired.  
To immediately select Chan-  
nel 19, press 19. Channel 19  
is another channel used for  
emergencies and traveler as-  
sistance.  
VOLUME only affects what  
Note:  
you hear. It has no effect on  
transmissions.  
To select any other channel,  
repeatedly press (or hold  
5. To turn off the CB, turn VOLUME  
counterclockwise until it clicks.  
down) CHANNEL  
or  
.
The display shows the channel  
number.  
7
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CB OPERATION TIPS  
Like most activities, CB radio use has  
its customs and courtesies. Although  
this CB radio is designed for emer-  
gency use, it does work on all 40 CB  
channels and can be used for more  
than just emergencies. The following  
tips will help you get the most benefit  
and satisfaction from your CB.  
MAXIMUM RANGE  
The maximum range and quality of  
CB transmissions vary depending on  
these conditions:  
• The type and quality of antenna  
used  
• The height of the antenna’s  
mounting location — the higher  
the antenna, the better the sig-  
nal’s range  
CB COURTESY  
• Wait for a pause in someone  
else’s transmission before you  
ask for a break.  
• The surrounding terrain  
mountains and tall buildings limit  
the range  
• If you do not receive an answer  
to your call after a second at-  
tempt, sign off and wait several  
minutes before trying again.  
• Weather conditions  
• The number of nearby CBs op-  
erating on the same channel  
• Do not hold down PUSH TO  
TALK when you are not talking.  
(This is called dead keying.)  
• Standing Wave Ratio (SWR) be-  
tween the antenna and the CB  
You can check the SWR be-  
tween the CB and a mobile an-  
tenna using an SWR meter (Cat.  
No. 21-523). Follow the instruc-  
tions supplied with the SWR  
meter and the mobile antenna to  
change the SWR, if necessary.  
• Assist callers with directions,  
road conditions, and any other  
reasonable requests.  
Note: You cannot adjust the  
SWR of the supplied antenna.  
8
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21-1588.fm Page 9 Thursday, August 5, 1999 10:05 AM  
USING COMMON 10-  
CODES  
Code  
Meaning  
10-13  
Report ___________  
conditions.  
Citizen’s band operators have largely  
adopted the 10-codes for standard  
questions and answers. Their use  
permits faster communication and  
helps prevent misunderstanding in  
noisy areas.  
10-14  
10-15  
10-16  
10-17  
10-18  
10-19  
10-20  
10-21  
10-22  
10-23  
10-24  
10-26  
Information.  
Message delivered.  
Reply to message.  
En route.  
This table lists the codes adopted by  
the Associated Public Safety Com-  
munications Officers (APCO).  
Urgent.  
Contact __________.  
My location is _______.  
Call ____ by telephone.  
Cancel last message.  
Arrived at the scene.  
Assignment complete.  
Code  
Meaning  
10-1  
Cannot understand your  
message.  
10-2  
10-3  
10-4  
Your signal is good.  
Stop transmitting.  
Message received and  
understood.  
Estimated time of arrival  
is ____.  
10-5  
Relay information to  
_________.  
10-30  
10-31  
10-33  
Use caution.  
Pick up.  
10-6  
I am busy.  
Emergency traffic. Clear  
the channel.  
10-7  
Out of service.  
In service.  
10-8  
10-34  
The time is _____.  
10-9  
Repeat last message.  
Negative (No).  
__________ in service.  
Stand by.  
Note: Although this table lists the 10-  
codes’ 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?).  
10-10  
10-11  
10-12  
9
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Personal Uses  
COMMON USES FOR A  
CB RADIO  
• 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.  
Business Uses  
• Truck drivers and delivery per-  
sonnel can learn road and traffic  
conditions and get assistance in  
locating destinations. A CB is  
also good company on those  
“long hauls.”  
• If you are a two-car (or more)  
family, CBs are great for com-  
municating with family members  
while they are in their cars.  
• On construction crews, a CB  
quickly pays for itself when you  
are calling for additional materi-  
als or coordinating the activities  
of different work crews.  
• Contact friends or neighbors —  
find out “what’s happening” or  
plan a get-together.  
• Ever have car trouble or run out  
of gas on the highway? What a  
relief it is to be able to radio for  
assistance!  
• For security officers, a CB is  
more than a convenience — it is  
a must for both safety and effi-  
ciency.  
• Camping, fishing, and other  
sports are more fun with a CB.  
Locate a buddy or find out  
“what’s cooking” back at camp.  
10  
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TROUBLESHOOTING  
With proper care and handling, your CB should give you years of trouble-free ser-  
vice. However, if your CB is not working properly, follow these suggestions to see  
if you can eliminate the problem. If you still have a problem, take the CB to your  
local RadioShack store for assistance.  
Problem  
Suggestion  
Not transmitting well.  
Fully press PUSH TO TALK.  
Secure the antenna connection.  
Fully extend the antenna.  
Not receiving well.  
Secure the antenna connection.  
Fully extend the antenna.  
Distorted or unclear sound. This may be caused by SSB (single side  
band) transmissions on your channel. Try  
another channel. (Common SSB channels  
are Channels 16 and 36–40.)  
CB does not operate at all.  
Turn VOLUME clockwise to turn on the CB.  
Check the power connection.  
Replace the blown fuse in the power cord.  
See “Replacing the Power Cord’s Fuse” on  
Page 14.  
11  
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• If problems persist, check your  
alternator/generator and regula-  
tor gauges. Noise from these  
sources can be reduced or elimi-  
nated using bypass capacitors  
at the various voltage points.  
REDUCING NOISE  
Because your CB is exceptionally  
quiet, any noise you hear is probably  
from an external source in your vehi-  
cle — the ignition, another radio,  
spark plugs, and so forth.  
Note: Your local RadioShack store  
has a wide selection of noise-  
suppression equipment.  
You can determine the source of the  
noise by turning off the engine and  
operating the CB with the ignition set  
to ACC. If most or all of the noise  
goes away, the problem is in your ve-  
hicle’s ignition or electrical system.  
Here are a few hints to help you re-  
duce or eliminate such noise:  
• Do not route the power cord next  
to the antenna wire.  
• Be sure the antenna’s magnetic  
base is securely attached to a  
metallic surface. If you use an  
antenna other than the magnet-  
mount type, be sure that the ve-  
hicle battery’s ground connec-  
tion is secure.  
• Try replacing old ignition wires  
with new, high-voltage, noise-  
suppression ignition wires.  
• Install noise suppressors on  
your spark plugs or install spark  
plugs that have built-in suppres-  
sors.  
12  
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CARE AND MAINTENANCE  
Your TRC-401 Emergency CB Radio is an example of superior design and  
craftsmanship. The following suggestions will help you care for your TRC-401 so  
you can enjoy it for years.  
Keep the TRC-401 dry. If it gets wet, wipe it dry immediately. Liq-  
uids might contain minerals that can corrode the electronic cir-  
cuits.  
Handle the TRC-401 gently and carefully. Dropping it can damage  
circuit boards and cases and can cause the TRC-401 to work im-  
properly.  
Keep the TRC-401 away from dust and dirt, which can cause pre-  
mature wear of parts.  
Wipe the TRC-401 with a damp cloth occasionally to keep it look-  
ing new. Do not use harsh chemicals, cleaning solvents, or strong  
detergents to clean the TRC-401.  
Modifying or tampering with the TRC-401’s internal components can cause a  
malfunction and might invalidate your TRC-401’s warranty and void your FCC  
authorization to operate it. If your TRC-401 is not performing as it should, take it  
to your local RadioShack store for assistance.  
13  
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21-1588.fm Page 14 Thursday, August 5, 1999 10:05 AM  
REPLACING THE  
POWER CORD’S FUSE  
The power cord’s 2-amp fuse helps  
protect your CB from power surges  
and short circuits. If the fuse is blown,  
replace it with a 2-amp, 250-volt,  
fast-acting fuse (Cat. No. 270-1052).  
Follow these steps to replace the  
fuse.  
1. Unplug the power cord from the  
vehicle’s cigarette lighter and  
the CB.  
2. To open the cigarette-lighter  
plug and remove the fuse, turn  
the cap counterclockwise and  
remove it. (Take care not to lose  
the tip.)  
3. If the fuse is blown, replace it.  
Caution: Make sure you replace  
the fuse only with another fuse  
of the same type and rating.  
4. To close the cigarette-lighter  
plug, replace the cap and turn it  
clockwise.  
14  
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21-1588.fm Page 15 Thursday, August 5, 1999 10:05 AM  
SPECIFICATIONS  
Receiver  
Frequency Coverage .............................. 26.965–27.405 MHz (all 40 channels)  
Sensitivity (Maximum) ................................................ 0.5 µV for 10 dB (S+N)/N  
Adjacent Channel Rejection (EIA-204)....................................................... 45 dB  
Squelch Sensitivity ............................................................................. 0.25–1 µV  
Audio Output ............................................................. 400 Milliwatts (10% THD)  
Current Drain .................................................................................. 130–600 mA  
Minimum Volume Audio Output ...................................................... 10 Milliwatts  
Frequency Response (–6 dB) ....................................................... 450–2500 Hz  
Cross Modulation ...................................................................................... 50 dB  
Transmitter  
Frequency Coverage .............................. 26.965–27.405 MHz (all 40 channels)  
Power Input (at 12 V DC) ....................................................................... 5 Watts  
Power Output (at 12 V DC) ................................................................. 2.5 Watts  
Spurious Emission ...................................................................... 60 dB or Better  
Type of Modulation ......................................................................................... A3  
Modulation Capacity .............................................................................. 80–90%  
Frequency Tolerance .............................................................................. 0.002%  
Antenna Impedance ............................................................................ 50 Ohms  
Antenna Length ............................................................... 34.6 Inches (880 mm)  
Current Drain ................................................................................ 450–1200 mA  
General  
Weight ...................................................................................................... 9.9 oz  
(280 g)  
Dimensions (HWD) ........................................................... 7 ¥ 21/2 ¥ 17/16 Inches  
(178 ¥ 64 ¥ 36 mm)  
Specifications are typical; individual units might vary. Specifications are subject  
to change and improvement without notice.  
15  
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21-1588.fm Page 16 Thursday, August 5, 1999 10:05 AM  
Limited Ninety-Day Warranty  
This product is warranted by RadioShack against manufacturing defects in material and workman-  
ship under normal use for ninety (90) days from the date of purchase from RadioShack company-  
owned stores and authorized RadioShack franchisees and dealers. EXCEPT 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 LIABIL-  
ITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RE-  
SPECT 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 WAR-  
RANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVE-  
NIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT,  
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN AD-  
VISED OF THE POSSIBILITY OF SUCH DAMAGES.  
Some states do not allow the limitations on how long an implied warranty lasts or the exclusion of in-  
cidental or consequential damages, so the above limitations or exclusions may not apply to you.  
In the event of a product defect during the warranty period, take the product and the RadioShack  
sales receipt as proof of purchase date to any RadioShack store. RadioShack will, at its option, un-  
less otherwise provided by law: (a) correct the defect by product repair without charge for parts and  
labor; (b) replace the product with one of the same or similar design; or (c) refund the purchase  
price. All replaced parts and products, and products on which a refund is made, become the prop-  
erty of RadioShack. New or reconditioned parts and products may be used in the performance of  
warranty service. Repaired or replaced parts and products are warranted for the remainder of the  
original warranty period. You will be charged for repair or replacement of the product made after the  
expiration of the warranty period.  
This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse,  
accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation or  
maintenance, alteration, lightning or other incidence of excess voltage or current; (b) any repairs  
other than those provided by a RadioShack Authorized Service Facility; (c) consumables such as  
fuses or batteries; (d) cosmetic damage; (e) transportation, shipping or insurance costs; or (f) costs  
of product removal, installation, set-up service adjustment or reinstallation.  
This warranty gives you specific legal rights, and you may also have other rights which vary from  
state to state.  
RadioShack Customer Relations, Dept. W, 100 Throckmorton St., Suite 600, Fort Worth, TX 76102  
We Service What We Sell  
3/97  
RadioShack  
A Division of Tandy Corporation  
Fort Worth, Texas 76102  
811080920B  
4A8  
Printed in Hong Kong  
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