The MDDM-860 is a digital demodulator and decoder that receives one input in ATSC 8VSB (digital off-air) or clear QAM (digital cable) format and delivers one NTSC composite analog video and stereo audio output. The unit allows delivering of a digital off-air program to viewers with an analog TV set. It also allows operators to cherry-pick channels from a clear QAM cable lineup. Headends processing analog broadcasts using Blonder Tongues MIDM demodulators and MICM modulators can be upgraded seamlessly to process digital broadcasts by simply replacing the MIDM with a MDDM.
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