21-1672.fm Page 30 Thursday, August 5, 1999 12:04 PM

This table lists codes adopted by the Associated Public Safety Communications Officers (APCO).

Code

Meaning

 

 

10-1

Your signal is bad.

 

 

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 road/weather conditions.

 

 

10-14

Information.

 

 

10-15

Message delivered.

 

 

10-16

Reply to message.

 

 

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Radio Shack TRC-232 owner manual Code Meaning