| Midway Airport - Chicago Illinois | ||||||||
| Trunked Radio System Information | ||||||||
| Callsign - WPKY459 | System ID - 6D1C | |||||||
| Connect Tone - 76.60 | System Type - P25 Digital 3600 | |||||||
| Frequencies | ||||||||
| 476.3125 476.5625 476.7875* 477.0875* 477.4125* 477.6375* | ||||||||
| Tower Locations | ||||||||
| 414710 / 0874508 - 5700 South Cicero Avenue | ||||||||
| Base Frequency - 474.0000 Offset - 12.5 KHz Uniden Base Channel 380 | ||||||||
| Hex | Decimal | Use | ||||||
| 259 | 9616 | Trades | ||||||
| 25B | 9648 | Custodial | ||||||
| 25D | 9680 | Security | ||||||
| 25F | 9712 | Chicago Police | ||||||
| 261 | 9744 | Chicago Fire Dispatch | ||||||
| 263 | 9776 | MTD [Motor Truck Drivers] - City Operations | ||||||
| 265 | 9808 | Snow 1 | ||||||
| 267 | 9840 | Landside | ||||||
| 269 | 9872 | Operations | ||||||
| 26B | 9904 | Administrative Staff | ||||||
| 26D | 9936 | Fire - Incident 1 | ||||||
| 26F | 9968 | Comm 1 - Construction | ||||||
| 271 | 10000 | Comm 2 - Snow Plows | ||||||
| 273 | 10032 | Comm 3 | ||||||
| 275 | 10064 | Radio Service | ||||||
| 277 | 10096 | FSP [Facility Service Professionals] - Baggage | ||||||
| 279 | 10128 | FSP [Facility Service Professionals] - Custodial | ||||||
| 27B | 10160 | FSP [Facility Service Professionals] - Engineering | ||||||