MDDM-860

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 delivery of a digital off-air program to viewers with an analog TV set. It also enables operators to cherry-pick channels from a clear QAM cable lineup.

Headends processing analog broadcasts using Blonder Tongue’s MIDM demodulators and MICM modulators can be upgraded seamlessly to process digital broadcasts by simply replacing the MIDM with a MDDM. The MDDM-860 is part of the HE-12 and HE-4 Series.

Key Features

• Compact design allows for deployment of 6 channels (6 MDDM modules + 6 MICM modulators) in 2RU
• NTSC Composite Analog Video output is in 480i format and supports Closed Captioning (EIA-608)
• Input standards supported are digital off-air (8VSB) and digital cable (ITU-B QAM 64 and 256)
• Scans all 8VSB or QAM channels and stores in memory for quick channel selection
• Demodulates HDTV/SDTV digital signals to NTSC video and analog L/R audio
• On-site firmware updates/status monitoring available through front-panel
• Die-cast Chassis Offers Superior Protection against Ingress or Egress
• Adjustable picture sizes for 16:9 to 4:3 image conversion
• Supports Mono, Stereo, and SAP audio modes