TRC-503 40-Channel Mobile CB Radio w/Channel 9/19 Priority Switch
(210-1703A) Operation Faxback Doc. # 60706
Before you use your CB, you should know how to use it effectively and
courteously. "Operational Hints" below, contains information that will
help you get more enjoyment from your CB.
Receiving Transmissions and Adjusting Squelch
1. Turn SQUELCH fully counterclockwise.
2. Turn on the transceiver by turning VOLUME clockwise until it clicks.
The channel display lights and the channel appears, and the RX
indicator lights.
3. Set OUT/CH-9/CH-19 to OUT to select a channel other than an emergency
channel.
4. Rotate the channel selector until the display shows the desired
channel.
5. Adjust VOLUME to a comfortable listening level.
6. To cut out background noise between transmissions, wait until there is
no signal, then slowly turn SQUELCH clockwise until the background
noise stops.
Note: To receive very weak signals, turn SQUELCH counterclockwise.
You hear noise between transmissions, but you also hear weak
transmissions (those not strong enough to break through a
higher squelch setting).
7. To turn off the CB, turn VOLUME counterclockwise until you hear it
click. The display and indicators turn off.
Transmitting
Note: We recommend you try receiving before you transmit.
1. Follow Steps 1-5 in "Receiving Transmissions and Adjusting Squelch,"
above.
2. To transmit, hold down PUSH TO TALK on the microphone. The TX
indicator lights. Hold the microphone 2-3 inches from your mouth and
speak in a normal tone of voice, then release PUSH TO TALK when you
finish. The TX indicator turns off.
3. To turn off the CB, turn VOLUME counterclockwise until you hear it
click. The display and RX indicator turn off.
Selecting the Emergency Channel
IMPORTANT: Channel 9 and Channel 19 are reserved for motorist assistance
and for reporting emergency information about accidents,
hazardous road conditions, and so on. Always give emergency
messages priority on Channel 9 or Channel 19.
To select the emergency Channel 9 or Channel 19, set OUT/CH-9/CH-19 to
CH-9 or CH-19. The selected channel number flashes on the display.
To select another channel, set OUT/CH-9/CH-19 to OUT. The previously
selected channel number appears on the display.
Operational Hints
Like most activities, CB radio has its customs and courtesies. The
following tips will help you get the most enjoyment from your CB.
Common Uses for a CB
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, CB radios 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 get
together.
Ever have car trouble or run out of gas on the highway? What an
assurance it is to be able to radio for assistance!
Camping, fishing, and other sports are more fun with a CB radio. Locate
a buddy or find out "what's cooking" back at camp.
Business Uses
For security officers, a CB is more than a convenience - it is a must
for both safety and efficiency.
Truck drivers and delivery personnel can learn road and traffic
conditions and get assistance in locating destinations. A CB radio is
also good company on those "long hauls".
On construction crews, a CB radio quickly pays for itself when you are
calling for additional materials or coordinating the activities of
different work crews.
Transmission Courtesy
Please follow these guidelines of radio courtesy when using your CB.
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 after a second attempt,
sign off and wait several minutes before trying again.
Do not hold down PUSH TO TALK when you are not talking. (This is
called Dead Keying.)
Assist callers with directions, information about road conditions, and
any other reasonable requests.
Using Common 10-Codes
Citizen's band operators and CB radio users have largely adopted the 10
codes for standard questions and answers. These codes permit faster
communication and better intelligibility in noisy areas.
This table lists codes adopted by the Associated Public Safety
Communications Officers (APCO).
CODE MEANING CODE MEANING
10-1 Your signal is bad. 10-17 En route.
10-2 Your signal is good. 10-18 Urgent.
10-3 Stop transmitting. 10-19 Contact _____.
10-4 Message received and Understood. 10-20 What is your location?
10-5 Relay information to ____. 10-21 Call _____ by telephone.
10-6 I am busy (or) Are you busy? 10-22 Cancel last message.
10-7 Out of service. 10-23 Arrived at the scene.
10-8 In service. 10-24 Assignment complete.
10-9 Repeat last message. 10-25 Meet _____.
10-10 Negative (NO) 10-26 Estimated time of arrival
is ________.
10-11 _____ in service. 10-30 Use caution.
10-12 Stand by. 10-31 Pick up.
10-13 Report road/weather conditions 10-33 Emergency traffic. Clear
the channel.
10-14 Information 10-34 What time is it?
10-15 Message delivered 10-41 Switch to Channel __.
10-16 Reply to message 10-62 Cannot understand.
10-100 Gone for a "break".
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?).
Maximum Range
The maximum range and quality of CB radio transmissions vary depending on
the following conditions:
The type and quality of antenna used.
The height of the antenna's mounting location - the higher the antenna,
the better the signal's range.
The surrounding terrain - mountains and tall buildings limit the range
Weather conditions.
The number of nearby radios operating on the same channel
Standing Wave Ratio (SWR) between the antenna and the CB.
Note: Your CB radio's transmission range is generally line-of-sight.
(GLW EB 8/02/00)
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