Sprint's LTE to Launch On 1900MHz Only

Phineas said:
Will the LTE network only be used in that G block or can they use in other blocks as well?

Yes and no. Sprint's initial LTE devices will support at the very least LTE band class 25, which includes all PCS blocks A-G.

So, as more and more subs transition to LTE, Sprint may be able to "refarm" some of its traditional PCS A-F spectrum from EV-DO to LTE.

But that will not happen right away. And if/when Sprint does "refarm" some spectrum currently used for EV-DO, that will be in only certain markets where Sprint holds 20-40 MHz of PCS A-F spectrum.

Phineas said:
Won't voice moving to 800MHz help with 3G and LTE?

Sprint will not be "moving" 1X to SMR 800 MHz -- at least not right away. Rather, Sprint will be using its SMR 800 MHz spectrum to add more 1X (maybe EV-DO, too) capacity and enhance propagation.

Sprint cannot simply move most/all 1X carrier channels to SMR 800 MHz because Sprint devices released prior to last year (and even some released last year) are not CDMA band class 10 capable.

AJ