Illinois Department of Natural Resources (IDNR) (Illinois)

Last Updated: May 11, 2025, 21:22 pm UTC
See the WIKI for more information
VHF may still be used locally by admin/maintenance workers, if at all. 
Please advise of usage in your area of ANY VHF frequencies.

Frequencies

Illinois Department of Natural Resources (IDNR)

Statewide
STARCOM21 Statewide Illinois
Project 25 Phase II
Main Communications system for INDR Police (Conservation).
FrequencyLicenseTypeToneAlpha TagDescriptionModeTag
151.280KA2864 RM IDNR South Central/Southern Parks (varying tones) FMN Public Works
151.280KA2864 M CSQ IDNR Statewide Maintenance/Forestry (Statewide) FMN Public Works
151.250KA2864 RM IDNR Southern Southern Areas FMN Public Works
151.445KA2864 RM IDNR Northern Northern Areas FMN Public Works
154.7025KA2864 M IDNR Portables Portables FMN Law Dispatch
171.425KA2864 M IL DNR MX 1 LE VRS - mobile extenders (Old) FMN Law Dispatch
172.275WPIW484 M IL DNR MX 2 LE VRS - mobile extenders (Old) FMN Law Dispatch

Region 1 - Northwest IL

Region 1 - Northwest IL
Starved Rock State Park (Utica)
STARCOM21 Statewide Illinois
Project 25 Phase II
Conservation Police are using **Dist 17 Disp A (9019) for dispatch and **DNR District 6 (1278) for car-to-car. May also use other **Dist 17 channels (Disp B, Car-to-Car, Detail A, etc) as necessary for details or operations. The non-law enforcement DNR units are on 151.28 (usually 123.0 PL)
Wildlife Prairie State Park

Region 2 - Northeast IL

Illinois Beach State Park (Zion)
Iroquois County Conservation Center

Hunting area; see the Wiki for Actual Conservation Officer Radio Channel Plan

Region 3 - East Central IL

Region 3 - East Central IL
Jasper County
Shelby County

Region 4 - West Central IL

Madison/Jersey/Macoupin/Greene County Area
Sangamon County (Springfield) Area

Region 5 - Southern IL

Region 5 - Southern IL

Region 6 - Lake Michigan

Lake Michigan