By thomas, 15 November, 2005 10-1 Signal weak 10-8 In service 10-2 Signal good 10-9 Repeat 10-3 Stop transmitting 10-10 Negative 10-4 Affirmative 10-12 Stand by 10-6 Busy 10-19 Return to station 10-7 Out of service 10-23 Arrived at scene
