Interoperability/Talkgroups
Mutual Aid and Statewide Interoperability Talkgroups
Mutual Aid Talkgroups - designated for Law Enforcement, EMS, and Fire for emergency (ad hoc) use and short-term planned events communications between multiple agencies. Users should verify availability of Mutual Aid talkgroups with their primary dispatch. They are statewide but usually assigned by THP District/region (described below).
Statewide Interop Talkgroups - designated for multi-jurisdiction/discipline coordination of planned events. Submit requests for use no less than one week in advance to: TN.SWIC@TN.GOV. Radios previously programmed as TVRCS C Bank are now in use as the Statewide Interop Zone (described below, with previously corresponding C Bank names for reference).
TN CALL Talkgroup - a monitored 24/7 hailing channel for requesting assistance or channel assignment as needed.
MUTUAL AID TALKGROUPS: Dist. 1 Knoxville: Mutual Aid 4, 5, 6 Dist. 2 Chattanooga: Mutual Aid 1, 2, 3 Dist. 3 Nashville: Mutual Aid 13, 14, 15 Dist. 4 Memphis: Mutual Aid 22, 23, 24 Dist. 5 Fall Branch: Mutual Aid 7, 8, 9 Dist. 6 Cookeville: Mutual Aid 10, 11, 12 Dist. 7 Lawrenceburg: Mutual Aid 16, 17, 18 Dist. 8 Jackson: Mutual Aid 19, 20, 21 |
TN Interop (Previously C-Bank) | ||||
|---|---|---|---|---|---|
| 1. | TN CALL | 1TNDIST3 | |||
| East: Districts 1, 2, 5, 6 | 2. | TN IO 1 | 2TNDIST3 | ||
| 3. | TN IO 2 | 3TNDIST3 | |||
| 4. | TN IO 3 | 4TNDIST3 | |||
| 5. | TN IO 4 | 1NWGA | |||
| 6. | TN IO 5 | 2NWGA | |||
| 7. | TN IO 6 | 3NWGA | |||
| 8. | TN IO 7 | 4NWGA | |||
| 9. | TN IO 8 | 1TNDIST2 | |||
| West: Districts 3, 4, 7, 8 | 10. | TN IO 9 | 2TNDIST2 | ||
| 11. | TN IO 10 | 3TNDIST2 | |||
| 12. | TN IO 11 | 4TNDIST2 | |||
| 13. | TN IO 12 | 1ZONE1 | |||
| 14. | TN IO 13 | 2ZONE1 | |||
| 15. | TN IO 14 | 3ZONE1 | |||
| 16. | TN IO 15 | 4ZONE1 | |||
PSAP Talkgroups
TACN provides free access for Public Safety Answering Point (PSAP) talkgroups. Using a TACN PSAP talkgroup, any public safety dispatch, including law enforcement, fire, and EMS, can communicate with their officers in the field and any other agency that has access to the talkgroup.
TACN’s PSAP talkgroups are an alternative to using an intercity channel or telephone. Unlike intercity channels, which are reserved for law enforcement dispatches, TACN PSAP talkgroups can serve local, state, and federal first responder dispatches. Talkgroups are P-25 Phase I (FDMA), unencrypted and cover specific regions of the state. Dispatches can access multiple TACN PSAP talk groups.
PSAP Talkgroup Requirements:
- Low power P-25 Phase I trunked capable radio or consolette - low gain antenna at 20’ or less in height to affiliate to the nearest TACN tower site.
- Talkgroups can be programmed into any mobile command vehicles or mobile communications vehicles.
- Several manufacturers provide radios that work on the TACN system, including Kenwood, Harris, Tait, E.F. Johnson, and Motorola.
- TACN can provide the state system radio programming for free. A local radio shop can provide the radio and any installation and configuration to a console system. TACN can work with your local radio shop to ensure the installation is completed and operational.
Contact TACN administration to determine which is best for your agency.
PSAP Talkgroup Map
Tennessee Highway Patrol District 1 Counties use PSAP-2
Anderson County
Blount County
Campbell County
Knox County
Loudon County
Monroe County
Morgan County
Roane County
Scott County
Sevier County
Tennessee Highway Patrol District 2 Counties use PSAP-1
Bledsoe County
Bradley County
Coffee County
Franklin County
Grundy County
Hamilton County
Marion County
McMinn County
Meigs County
Polk County
Rhea County
Sequatchie County
Tennessee Highway Patrol District 3 & 7 Counties use PSAP-5 (Middle TN)
Bedford County
Cheatham County
Davidson County
Dickson County
Giles County
Hickman County
Houston County
Humphreys County
Lawrence County
Lewis County
Lincoln County
Marshall County
Maury County
Montgomery County
Moore County
Perry County
Robertson County
Rutherford County
Sumner County
Stewart County
Wayne County
Williamson County
Wilson County
Tennessee Highway Patrol District 4 & 8 Counties use PSAP-7 (West TN)
Benton County
Crockett County
Carroll County
Chester County
Decatur County
Dyer County
Fayette County
Gibson County
Hardeman County
Hardin County
Haywood County
Lauderdale County
Henderson County
Henry County
Lake County
Madison County
McNairy County
Obion County
Shelby County
Tipton County
Weakley County
Tennessee Highway Patrol District 5 Counties use PSAP-3
Carter County
Claiborne County
Cocke County
Grainger County
Greene County
Hamblen County
Hancock County
Hawkins County
Jefferson County
Johnson County
Sullivan County
Unicoi County
Union County
Washington County
Tennessee Highway Patrol District 6 Counties use PSAP-4
Cannon County
Clay County
Cumberland County
DeKalb County
Fentress County
Jackson County
Macon County
Overton County
Pickett County
Putnam County
Smith County
Trousdale County
Van Buren County
Warren County
White County