Since owning tower sites isn't part of their "core business," they'd sell them and then lease them back from the new owner. Such a move would help reduce debt as well as create a tax deduction for the cost of the leases.
http://www.insideradio.com/free/to-...cle_5839e990-56e3-11ea-9f79-1ba8d5df5210.html
http://www.insideradio.com/free/to-...cle_5839e990-56e3-11ea-9f79-1ba8d5df5210.html