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| Entity | Entity Type | 
|---|---|
| Dimmit County Trunked Systems (3) | Trunked | 
| Dimmit County Amateur Radio | Amateur Radio | 
| Dimmit County | Category | 
| Federal | Category | 
| Airports | Federal | 
| Industrial | Business Group | 
Frequencies
Dimmit County
Dimmit County
Med Shield EMS, Big Wells VFD and Asherton VFD are dispatched on the VHF repeater below, although EMS primarily responds on GATRRS.
| Greater Austin/Travis Regional Radio System (GATRRS) Project 25 Phase II | Dimmit Co. SO, CSISD PD, Med Shield EMS and Dimmit County Fire Dept. all use this system for communications. | 
| Frequency | License | Type | Tone | Alpha Tag | Description | Mode | Tag | 
|---|---|---|---|---|---|---|---|
| 155.790 | WQO409 | RM | 186.2 PL | Dimmit Fire/EMS | Fire/EMS Dispatch, SO Backup | FMN | Multi-Dispatch | 
Carrizo Springs
Federal
Customs and Border Protection (CBP)
Del Rio Sector covers all of Dimmit County. D13 Net is a set of 4 repeaters that covers South Maverick, Northern Webb, Dimmit and Zavala Counties.
Immigration and Customs Enforcement (ICE)
| Frequency | License | Type | Tone | Alpha Tag | Description | Mode | Tag | 
|---|---|---|---|---|---|---|---|
| 172.8625 | RM | 301 NAC | ICE DNET205 CzSp | DNET 205 - Carrizo Springs | P25E | Federal | 
 
                 
                