[MilCom] AWACS Info?

[Jason]

I'm curious about AWACS. My brother in law is
on an AWACS crew out of Tinker AFB and he
can't say anything about what freqs they use. 
I'm primarily looking for the VHF and UHF common stuff I guess. 
I ran across some frequencies on the net (can't find them now)
I'm curious if they keep the same ones nationwide?
If not, can someone point me out some frequencies to
monitor them in the NW Florida South Alabama area?

Thanks

Jason
W4IRQ