00
All possible assistance
10-0
Use caution
10-1
Unable to copy
10-2
Signal good
10-3
Stop transmitting
10-4
Acknowledgement (OK)
10-5
Relay
10-6
Busy unless urgent
10-7
Out of service. Not subject to call.
10-8
In service, available
10-9
Repeat last traffic
10-10
Out of service subject to call
10-11
Remain in service
10-12
Stand by
10-13
Weather or road conditions
10-14
Correct time
10-15
Have in possession
10-16
Pick up prisoner
10-17
Urgent. Rush present detail.
10-18
Any traffic for this unit or station
10-19
No traffic for your unit or station
10-20
What is your location?