https://www.fcc.gov/media/radio/special-temporary-authority#:~:text=If%20the%20station%20is%20or,(STA)%20to%20remain%20silent https://www.fcc.gov/media/radio/sp

https://www.fcc.gov/media/radio/special-temporary-authority#:~:text=If%20the%20station%20is%20or,(STA)%20to%20remain%20silent https://www.fcc.gov/media/radio/special-temporary-authority#.... An operator is allocated radio spectrum so stands to reason it’s use-it-or-lose-it.