said by Jim_in_VA:
WiMax (ClearWire) uses the 2.5 Ghz frequency, so if you are looking at dual band antennas that only use 1900/800 Mhz it won't work with WiMax. Whatever you get make sure it covers 2.5 Ghz as well.
ok, thanks Jim.
i was also gonna ask if there was any use trying Clear 4G service for possible better signal but sounds like you're saying Millenicom wimax over Sprint is just using the same cell towers.