Clear coverage question

[T_N_T]

So I have Clear Internet(FKA as Clearwire). Going to be moving from Nashville,TN area to Chattanooga,TN in the summer. I am aware that there is no official coverage in Chattanooga(looks like Atlanta,GA is closest official). Does anyone know if there is any signal(unofficial) there at all? I am under contract for another year with them. If there is no coverage I also wonder if they would let me out of contract as having no coverage in the area I live is a breach of contract imo. I would like to keep it as I don't have unlimited data on Verizon anymore, but if there is truly no coverage not much I can do. My equipment is the Clear Hub Express http://www.clear.com/devices/details/id/devhubexp