There are 5 "Statewide Talk Around channels for the State they are programmed as:
STTA 1: 853.4000
STTA 2: 853.4750
STTA 3: 853.7625
STTA 4: 852.1250
STTA 5: 852.7000
These are frequently used when we go in buildings and the radio signal can't get out to a repeater. We will tell all units to "Go to Ground". Most agencies program one of these ground channels in one of the first three "Toggle Switch A,B,C" zones on their radios for ease of finding/using. They are often called "Ground Channels" by Fire and EMS.
Our real world testing of these channels is that they MAY get outside the building to the command unit. In outdoor use, they typically have about 1/2 to 1 mile range. Sometimes more, sometimes less. Our department uses them when they are backing up apparatus, or on the drill ground and not wanting everyone to be hearing that they are testing hose, or practicing talking while wearing an SCBA etc.
We are then required by federal rules to have certain 7CALL, 7TAC, 8CALL, 8TAC, and 7MED (Because we are Fire/Ems). Each of these are set up for repeater use, but broadcast in simplex mode until the repeater is turned on. I checked my radio today and each channel was broadcasting in Simplex mode on the Input frequency. (Still with NAC Tone) In Utah, these are the required Fire/EMS channels: My understanding is that they are all supposed to be in Simplex mode until needed for interop use in a disaster or large incident. Then they turn on or set up repeater sites as needed. They are not supposed to be used for other things.
STRP=STATE REPEATER
STTA= STATE TALK AROUND
ALL 7 AND 8 CHANNLES ARE THE FEDERAL LIST. THEY CAN BE FOUND HERE:
Common Public Safety - The RadioReference Wiki
| Conventional | Input | Output | TONE |
| STRPT01 | 808.40000 | UNKNOWN | 293 NAC |
| STRPT02 | 808.46750 | UNKNOWN | 293 NAC |
| STPRT03 | 808.76250 | UNKNOWN | 293 NAC |
| STPRT04 | 807.12500 | UNKNOWN | 293 NAC |
| STRPT05 | 807.70000 | UNKNOWN | 293 NAC |
| STTA01 | 853.40000 | NONE | 293 NAC |
| STTA02 | 853.47500 | NONE | 293 NAC |
| STTA03 | 853.76250 | NONE | 293 NAC |
| STTA04 | 852.12500 | NONE | 293 NAC |
| STTA05 | 852.70000 | NONE | 293 NAC |
| 7CALL50 | 799.24375 | 769.24375 | 293 NAC |
| 8CALL90 | | | |
| 8TAC92 | | | |
| 8TAC93 | | | |
| 8TAC94 | | | |
| 7TAC51 | 799.14375 | SAME | 293 NAC |
| 7TAC52 | 799.64375 | SAME | 293 NAC |
| 7TAC53 | 800.14375 | 770.14375 | 293 NAC |
| 7TAC54 | 800.64375 | 770.64375 | 293 NAC |
| 7TAC55 | 799.74375 | 769.74375 | 293 NAC |
| 7TAC56 | 800.24375 | 770.24375 | 293 NAC |
| 7FIRE63 | 799.89375 | SAME | 293 NAC |
| 7FIRE83 | 803.50625 | 773.50625 | 293 NAC |
| 7MED65 | 799.39375 | SAME | 293 NAC |
| 7MED86 | 803.00625 | 773.00625 | 293 NAC |
| 8CALL90 | 806.01250 | 851.0125 | 156.7 PL |
| 8TAC91 | 806.51250 | SAME | 156.7 PL |
| 8TAC92 | 807.01250 | SAME | 156.7 PL |
| 8TAC93 | 807.51250 | SAME | 156.7 PL |
| 8TAC94 | 808.01250 | SAME | 156.7 PL |
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