Radio Shack TRC-401 owner manual Using Common Codes, Code Meaning

21-1588.fm Page 9 Thursday, August 5, 1999 10:05 AM

USING COMMON 10-

CODES

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.

This table lists the codes adopted by the Associated Public Safety Com- munications 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.
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.

Code	Meaning
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	My location is _______.
10-21	Call ____ by telephone.
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	The time is _____.

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?).

9