This room contains 21 base station radio heads, 7 of which are dedicated to LTE, and 14 for 3G. Six-foot tall towers power the 3G network, but much smaller wall boxes (pictured) power the 4G network, an LTE advantage in terms of space.
Read more about AT&T's coverage grand slam
August 17, 2012 8:00 AM PDT
Photo by: Jessica Dolcourt/CNET
| Caption by: Jessica Dolcourt
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