Heard those callsigns several times over the years on both that TACN talkgroups and GSMNP channels. I believe it is a Tennessee Air National Guard channel. Helicopters with the Smoky callsigns are usually requested to go to the GSMNP with THP Aviation. Smoky # often gets on the NPS channel, and they refer to them as the Air National Guard when requesting them.I don't think this is medevac ops. Not hearing anything that leads me to believe it's evac ops. Listening more, it sounds like air ops. Airplanes or helicopters providing a "dispatcher" with departure and arrival at various places throughout the state, or ETA to different locations. I've heard Beach (or Beech) River, Smyrna, BNA (Nashville airport). This is the Rogue ops and Rogue number IDs.
'Cash' (followed by a number) are the radio callsigns used by the National Guard UH-60 birds based at BNA (formerly of Smyrna). The area on their ramp where they depart / land is referred to on the radio when communicating with ATC as the 'Cash pad.'Picking up TG 16027 on the Maryville and Centerville sites.. Sounds like helo or air comms. It's in line with National Guard TGIDs. I'm hearing call signs of "Smoky 7", what sounded like "Rogue? ops", and what sounded like "Cash Ops". I heard what sounded like airplane or helo talking to a control center and hearing something about being en route to Erlanger, and talking about western Kentucky counties, and using "Mutual Aid 1." It was a little muffled in some instances so it was hard to understand exactly what was being said. I didn't hear this live, but on recordings from my scanner. Any ideas?
Which is why they are valuable. They can afford to break a $200 radio. Doesn't make them less capable; if they start misbehaving, and a trip on the autotester doesn't solve it, pitch it and buy another. The cheapest one on state contract is four figures.Add to this that the Motorola XTS is discontinued.