22
• 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 ques-
tions and answers. Their use permits fast-
er communication and better intelligibility
in noisy areas.
This table lists the codes adopted by the
Associated Public Safety Communica-
tions Officers (APCO).
Code Meaning
10-1
Cannot understand your mes-
sage.
10-2
Your signal is good.
10-3
Stop transmitting.
10-4
Message received and under-
stood.
10-5
Relay information 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 service.
10-12
Stand by.
10-13
Report ___________ conditions.
10-14
Information.
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