Radio Shack 21-1679 A ユーザーズマニュアル

The CB Radio service is a private, two-way, short-distance voice 

communications service for personal or business activities. For 

rules regarding legal CB radio use, see the included Plain English 

Rules – Citizens Band Radio Service published by the FCC.

•  Warn of traffic tie-ups ahead.
•  Help truck drivers and delivery personnel learn road and 

traffic conditions and get assistance in locating destinations.

•  Provide fast help in the event of emergency or breakdown.
•  Help construction crews coordinate the activities of different 

work crews.

•  Assist communication between security officers.
•  Provide weather and road information.
•  Contact friends or other CB users on trips.
•  Keep in touch with your office or home.
•  Bring more fun for camping, fishing, and other sports; help 

locate a friend or find out what’s cooking back at camp.

•  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 seconds before trying again.

•  Do not hold down PTT when you are not talking. (This is 

called dead keying.)

•  Assist callers with directions, information about road 

conditions, and any other reasonable requests.

The maximum range and quality of CB transmissions vary 

depending on the following conditions:

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