| Transmit Frequency | Receive Frequency | Color Code | Transmitter Power Output (TPO) | Antenna Height (AGL) |
|---|---|---|---|---|
| 442.750 MHz | 447.750 MHz | 5 | 40 watts | 300 feet |
| Time Slot 1 | Time Slot 2 |
|---|---|
| Central IL Skywarn - 311899 | N9BIG Local - 311649 |
| Illinois Link - 31171 | |
| Local 9 - 9 | |
| Parrot - 9990 |