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C band is in the microwave range of frequencies ranging from 4 to 8 GHz. It was the first frequency band allocated for commercial ground-to-satellite communications. A typical C-band satellite uses 3.7–4.2 GHz for downlink, and 5.925–6.425 Ghz for uplink. C band is often used for Television receive-only, or TVRO, as discussed here.Ku Band is also in the microwave range of frequencies. It ranges from 12.0 to 18.0 GHz. Ku band satellites are also used for backhauls and particularly for satellite from remote locations back to a television network's studio for editing and broadcasting. The 12.2 to 12.7 GHz (LOF 11.250 GHz) segment is allocated to the BSS (broadcasting satellite service). BSS/DBS direct broadcast satellites normally carry 16 to 32 transponders of 27 MHz bandwidth running at 100 to 240 watts of power, allowing the use of receiver antennas as small as 18 inches (450 mm).