Illinois Scanner Frequencies
Warren County
| Frequency | CallSign | DBA/Licensee | City |
| 39.4600 | KSA911 | WARREN COUNTY SHERIFFS DEPT | MONMOUTH |
| 39.4600 | KSA911 | WARREN COUNTY SHERIFFS DEPT | MONMOUTH |
| 39.5000 | KSA911 | WARREN COUNTY SHERIFFS DEPT | MONMOUTH |
| 39.5000 | KSA911 | WARREN COUNTY SHERIFFS DEPT | MONMOUTH |
| 39.6600 | KSA911 | WARREN COUNTY SHERIFFS DEPT | MONMOUTH |
| 39.6600 | KSA911 | WARREN COUNTY SHERIFFS DEPT | MONMOUTH |
| 42.5000 | KNNN228 | ILLINOIS, STATE OF | MONMOUTH |
| 42.6000 | KNNN228 | ILLINOIS, STATE OF | MONMOUTH |
| 43.0200 | WPMP340 | MONMOUTH READY MIX CORPORATION | MONMOUTH |
| 45.2800 | KNAK437 | ILLINOIS, STATE OF | MONMOUTH |
| 45.3600 | KNAK437 | ILLINOIS, STATE OF | MONMOUTH |
| 45.4000 | KNAK437 | ILLINOIS, STATE OF | MONMOUTH |
| 45.4000 | KSS928 | WARREN, COUNTY OF | MONMOUTH |
| 45.4000 | KSS928 | WARREN, COUNTY OF | MONMOUTH |
| 45.4000 | KSS928 | WARREN, COUNTY OF | WALNUT GROVE |