Using common 10-codes – Radio Shack 40-CHANNEL 2-WAY CB RADIO TRC-501 User Manual
Page 12
12
Using Common 10-Codes
Citizen’s band operators have largely
adopted the 10-codes for standard
questions and answers. These
codes permit faster communication
and better intelligibility in noisy ar-
eas.
These tables list the codes adopted
by the Associated Public Safety
Communications Officers (APCO).
Code
Meaning
10-1
Cannot understand your
message.
10-2
Your signal is good.
10-3
Stop transmitting.
10-4
Message received and
understood.
10-5
Relay information to
________________.
10-6
I am busy or are you
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.
10-15 Message delivered.
10-16
Reply to message.
10-17
En route.
10-18
Urgent.
10-19
Contact ____________.
10-20
What is your location?
10-21
Call ___________ by tele-
phone.
10-22
Cancel last message.
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
What time is it?
Code
Meaning
21-1701.fm Page 12 Thursday, August 5, 1999 12:50 PM