RADIO CODES
| CODE | MEANING |
| 23 | Emergency |
| 24 | Disaster |
| 25 | Hurricane |
| 49 | Air Raid Alert |
| 50 | General Notice of Fire |
| 51 | Report to Station |
| 52 | Off the Air |
| 53 | On the Air |
| 54 | Fire Under Control |
| 55 | Send Police |
| 56 | Send Water Company |
| 57 | Send Mechanic |
| 58 | Send Power Company |
| 59 | Call Headquarters by Phone |
| 60 | Change Frequency |
| 61 | Apparatus Accident |
| 62 | Call Mutual Aid |
| 63 | Call Mobil Support |
| 64 | Make Inspection At... |
| 65 | Telephone Alarm |
| 66 | Sound Box Alarm |
| 67 | Sound Second Alarm |
| 68 | Sound General Alarm |
| 69 | Special Call for Equipment |
| 70 | Instructions? |
| 71 | Return to Station |
| 72 | Chief at Fire |
| 73 | Notify Chief of Fire |
| 79 | Give Location |
| 80 | All Clear Signal 23 or 50 |
| 85 | Test and Specify Reception |
| 99 | Airplane Down |
| 100 | Drill |