... )Code Rate1/2, 2/3, 3/4, 5/6 and 7/8Guard Interval1/4, 1/8, 1/16, 1/32Constellation QPSK ... , 16QAM, 64QAMBandWidth6, 7 or 8 MHzRequirementsHardware Intel Pentium-IV 1.6GHz or higher ... 2.0 Compliant Slot Graphics Card with 64MB memory (Must support DirectX 9.0 or Above) Sound Card (AC97 compatible sound ... 9.0c Super MINI USB2.0 HDTV PenDrive DVB-T TV Tuner