The state of Tennessee Advanced Communications Network (TACN)

[buddrousa]

TACN is wanting to free up space and get 2 slots per frequency and not have to install more racks and acquire more frequencies.

 

[jblackst]

It's got more to do with system capacity I suspect. I think KFD also still has some FDMA radios on their station alerting equipment.

 

[johnoconnor98]

TACN is wanting to free up space and get 2 slots per frequency and not have to install more racks and acquire more frequencies.

There is also only a limited number of frequencies. It is becoming harder and harder to find additional frequencies that don't interfere with your neighbors.

 

[slatescan]

I see Maury County is moving to TACN soon. Do we know a timeline?

 

[buddrousa]

That answer would come from Maury County Goverenment. Nobody else would have that answer .

 

[FFPM571]

That answer would come from Maury County Goverenment. Nobody else would have that answer .

There are others. Motorola and the vendor doing the work, TACN

 

[buddrousa]

Which neither will tell you if you call them and ask when is said x joining to join.
There are questions.
1. Does a site have to be added.
2. Does the Radio Vender have all the radios and equipment on hand.
This takes time for all the pieces of the puzzle to fit together.

 

[jblackst]

For example. I know of a city that has dozens of talk groups (fire, law, govt, pub works, etc) on the TACN system, loaded and ready to go. They've been there at least a year, and the city itself claims they have 'no idea' when or even if they're going to switch over because they haven't even bought compatible radios (as of late 2025).

And that's for a city in an existing coverage area that is already built out.

 

[THEMAGICMAN]

For example. I know of a city that has dozens of talk groups (fire, law, govt, pub works, etc) on the TACN system, loaded and ready to go. They've been there at least a year, and the city itself claims they have 'no idea' when or even if they're going to switch over because they haven't even bought compatible radios (as of late 2025).

And that's for a city in an existing coverage area that is already built out.

Sadly That's going to be alot of reasons agencies will not be coming onto TACN especially with only being able to use TDMA equipment now or agencies having to upgrade their whole fleet from older equipment without any grants or assistance ☹️

 

[buddrousa]

Then they need to spend a lot of money hiring a radio consultant to do the tower site coverage graphs and spend hundreds of thousands of dollars to build their own system keep it up repair it service the backup generators put together redundant links so the system works 100% just like the TACN Sites did and are still doing without power due to the ice storm.
If you cannot buy just the radios you will never have a stable emergency radio system. The County Officials need to keep their hands out of their pockets and do the job the people elected them to do.

 

[ropin4gold]

https://www.wkrn.com/news/local-news/moore-county-joins-state-emergency-radio-network/