Microyal Model MDH-801



Microyal's MDH-801 Digital Agile Modulator offers a compact SMATV Headend with a flexible housing with 8 slots for analogue and digital plug-in modules. It converts the DVB-ASI signal, AV signal into DVB-QAM or PAL D/K, PAL B/G, NTSC, SECAM, etc. standards. By interconnection, a very extensive program content can be offered. The entire system is enclosed in a 2.6 RU, 19 inch main frame. With variety of modules, it offers flexibility, an excellent price-performance-ratio and is easy to maintain. The main fields of application for the MDH-801 Digital Agile Modulator are new distribution networks for medium-sized to large communities as well as conversion or expansion of existing head ends.


  • 8 slots for different plug-in modules for the conversion of digital and analog from other head ends or devices
  • Easy configuration through built-in control unit
  • Hot plug for each plug-in modules
  • ITU J.83 Annex B compatible (North American Std.) for QAM Modulator card
  • 48 MHz to 860 MHz full band adjacent agile alignment
  • 100dBuV/Ch RF output level
  • Low spurious harmonic less than -60dBc
  • Changeable attachment for mounting in 19-cabinet and wall assembly
  • Excellent price-performance ratio
  • Low servicing and maintenance costs

Module Cards:

  • MDH-801MF Main Frame (includes SMA-801PS and control unit)
  • MDH-801QAM QAM modulator
  • MDH-801M PAL D/K modulator
  • MDH-811M PAL B/G modulator
  • MDH-821M NTSC modulator
  • MDH-831M SECAM modulator
  • *Other standards available upon requests



System Specification  
MDH-801MF Main Frame


MDH-801QAM Modulator