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Blonder Tongue MAVM-60-861 Channelized Agile Audio/Video Modulator Channel 30

Blonder Tongue Laboratories

Blonder Tongue MAVM-60-861 Channelized Agile Audio/Video Modulator Channel 30


Blonder Tongue MAVM-60-861 Channelized Agile Audio/Video Modulator

The MAVM Series are professional quality, channelized agile, heterodyne audio/video modulators. They provide audio and video modulated RF output on any VHF, UHF, or CATV channel (7 to 860 MHz). Sub-band channels T7-T11 are available. Any standard audio/video source can be used, such as satellite receivers, television cameras, video tape recorders, or television demodulators. These modulators feature a low cost, removable single channel output filter module to provide a channelized configuration. Customer requests for individual channels can be easily accomplished by combining the frequency agile mainframe with the desired removable output filter module. Modulators may be ordered as completed assemblies or as configurable modules. The MAVM Series takes baseband audio and video and modulates these signals onto the desired output channel (each modulator has separate audio and video inputs). The heterodyne conversion process used in the MAVM Series employs a crystal referenced, PLL synthesized local oscillator, with a 12.5 kHz tuning increment. This guarantees rock solid, no-drift output for the life of the modulator. A custom SAW filter is employed to provide true vestigial sideband selectivity with built-in FCC group delay pre-distortion. An external IF loop is standard which allows interfacing with video all-call and signal scrambling systems as well as the ability to lock to either baseband or a 4.5 MHz aural carrier. The MAVM Series meets FCC Docket 21006 aeronautical frequency offset requirements (?Hz video carrier accuracy) and accepts standard polarity (sync negative) video in the range of 0.7 to 2.8 V p-p. Field-defeatable audio pre-emphasis enables transmission of BTSC standard composite stereo signals. Output Filter Modules are factory tuned channelized units that are used with the CAM, CAP & MAVM product lines. They are available with +40 dBmV or +60 dBmV output levels and can be order for any channel in the CATV (2-135), UHF (14-69) or Sub-Band (T7-T11) channel ranges.FEATURES AND BENEFITS
  • EAS/ALT IF Ready Via Manual or Automatic Mode
  • Front Panel Accessible Level Controls for Easy Set-Upand Adjustments
  • Rack Mountable - 1 EIA (1.75") Rack Space
  • Exceptional Broadband Noise Performance of -110 dBc
  • -60 dBc Spurious Response for the Entire Level Range

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