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| Entity | Entity Type | 
|---|---|
| Gratiot County Trunked Systems (2) | Trunked | 
| Gratiot County Amateur Radio | Amateur Radio | 
| Gratiot County | Category | 
| Schools and Colleges | Category | 
| Businesses | Business Group | 
Frequencies
Gratiot County
Gratiot County
| Michigan's Public Safety Communications System (MPSCS) Project 25 Phase II  | Primary communications system for all law enforcement, fire operations and various county services. | 
| Frequency | License | Type | Tone | Alpha Tag | Description | Mode | Tag | 
|---|---|---|---|---|---|---|---|
| 154.160 | WQXT802 | BM | 351 DPL | Gratiot Fire | County Fire Dispatch - Simulcast to MPSCS talkgroup 1929 | FMN | Fire Dispatch | 
| 155.760 | WNAU881 | BM | 114.8 PL | Gratiot EMD | Emergency Management | FMN | Emergency Ops | 
| 155.730 | WPHE789 | RM | CC 10 TG * SL *  | 
Gratiot Jail | County Jail Operations | DMRE | Corrections | 
| 156.105 | KNGG562 | RM | CC 4 TG 100 SL 1  | 
Gratiot Roads | County Road Commission | DMRE | Public Works | 
Ithaca
| Frequency | License | Type | Tone | Alpha Tag | Description | Mode | Tag | 
|---|---|---|---|---|---|---|---|
| 155.895 | KTN603 | RM | 123.0 PL | Ithaca DPW | Public Works | FMN | Public Works | 
St. Louis
| Frequency | License | Type | Tone | Alpha Tag | Description | Mode | Tag | 
|---|---|---|---|---|---|---|---|
| 155.760 | WRG911 | BM | 115 DPL | St. Louis DPW | St. Louis DPW | FMN | Public Works | 
MyMichigan Medical Center Alma
| Frequency | License | Type | Tone | Alpha Tag | Description | Mode | Tag | 
|---|---|---|---|---|---|---|---|
| 463.000 | WPXI233 | RM | GrCommHosp MED 1 | EMS-to-Hospital Notifications | FMN | Hospital | 
Schools and Colleges
Dean Transportation
| Dean Transportation NXDN NEXEDGE 4800  | Dean Transportation uses this NXDN trunked system | 
Alma Schools
| Frequency | License | Type | Tone | Alpha Tag | Description | Mode | Tag | 
|---|---|---|---|---|---|---|---|
| 154.540 | WSH543 | RM | CC 10 TG * SL *  | 
Alma Schools 1 | Transportation | DMRE | Schools | 
Breckenridge Community Schools
| Frequency | License | Type | Tone | Alpha Tag | Description | Mode | Tag | 
|---|---|---|---|---|---|---|---|
| 464.825 | WQU939 | RM | CC 8 TG 15000 SL 1  | 
Breckrdg SchlBus | Transportation | DMR | Schools | 
Fulton Schools
Licensed for Mototrbo
| Frequency | License | Type | Tone | Alpha Tag | Description | Mode | Tag | 
|---|---|---|---|---|---|---|---|
| 464.325 | KNIT876 | RM | 156.7 PL | Fulton Schools | Buses/Custodial/Maintenance/Admin | FMN | Schools | 
Ithaca Public Schools
| Frequency | License | Type | Tone | Alpha Tag | Description | Mode | Tag | 
|---|---|---|---|---|---|---|---|
| 452.450 | WQFD600 | BM | CC 8 TG 1000 SL 1  | 
Ithaca Bus/Ops | Buses / Operations | DMR | Schools | 
St. Louis Public Schools
| Frequency | License | Type | Tone | Alpha Tag | Description | Mode | Tag | 
|---|---|---|---|---|---|---|---|
| 152.375 | WQVN514 | RM | 244 DPL | St Louis Sch Bus | St Louis School Buses | FMN | Schools | 
| 155.220 | KKG707 | BM | 179.9 PL | St Louis Schools | Transportation | FMN | Schools | 
Alma College
| Frequency | License | Type | Tone | Alpha Tag | Description | Mode | Tag | 
|---|---|---|---|---|---|---|---|
| 151.835 | KTT771 | RM | 151.4 PL | Physical Plant | Physical Plant | FMN | Schools |