Thanks for the info!
I have nothing in my logs for SE PA.
The Fed Files Blog shows this, but I'm not sure of the date:
163.6375, N100 IRS TAC 2, also nationwide
The RR DB shows:
| Freq Out | Freq In | Tone | Callsign | Description | Category | Agency/County | State |
|---|
| 163.6375 | | 100 NAC | | Tac-2 | Internal Revenue Service
Departments | Federal Agencies
Cook | IL |
| 163.6375 | | 100 NAC | | Criminal Investigation - Tactical 2 | Department of the Treasury -
Internal Revenue Service
Other Departments | Federal
Harris | TX |