Blonder Tongue MDDA-860 Micro ATSC/QAM to ASI Digital Demodulator and Transcoder

Blonder Tongue MDDA-860 Micro ATSC/QAM to ASI Digital Demodulator and Transcoder

Blonder Tongue MDDA-860 Micro ATSC/QAM to ASI Digital Demodulator and Transcoder

B&H # BLMDDA860 MFR # MDDA-860
Blonder Tongue MDDA-860 Micro ATSC/QAM to ASI Digital Demodulator and Transcoder

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  • 1Description

The MDDA-860 Micro ATSC/QAM to ASI Digital Demodulator and Transcoder by Blonder Tongue receives one input signal in ATSC 8VSB (digital off-air) or QAM (digital cable) format and delivers one output in ASI format. The unit features a front panel custom mini USB to RS232 interface connector for program control. The front panel provides up and down control channel selection and a two digit display to identify the program channel as well as a 1 digit RF channel display to indicate the frequency/channel plan.

Input standards supported are digital off-air (8VSB) and digital cable (ITU-B QAM 64 and 256)
Die-cast chassis offers protection against ingress or egress
Demodulates & transcodes HDTV/SDTV digital signals to ASI
Compact design allows for deployment of 12 units in 2RU
On-site firmware updates available through front-panel
In the Box
Blonder Tongue MDDA-860 Micro ATSC/QAM to ASI Digital Demodulator and Transcoder
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description
    Input
    Connector "F" female
    Standards 8VSB: ATSC Digital Television Standard, A/53E
    QAM: ITU-T J.83 (64 and 256 QAM)
    8VSB Mode Tuning Range: UHF (NTSC channels 14-78), VHF (NTSC channels 2-13)
    Symbol Rate: 10.762 Msymbols/sec
    Bandwidth: 6 MHz
    QAM Mode Tuning Range: CATV (NTSC channels 2-135)
    Symbol Rate: 5.3606 Msymbols/sec (QAM 256), 5.057 Msymbols/sec (QAM 64) - auto detect
    Bandwidth: 6 MHz
    Single Channel Power Level -32 to +45 dBmV
    8VSB Power Level -20 to +30 dBmV
    QAM Power Level -20 to +20 dBmV
    Return Loss 12 dB
    Impedance 75 Ω
    Output
    Connectors ASI: 1 x F (equipped with F-to-BNC adapter)
    ASI Standard: DVB-ASI; 50083-9
    Data Bit Rate: 270 Mbps
    Alarms/Monitoring/Control
    Front Panel Indicators RF channel (2 digit LED display)
    Frequency/channel plan (1 digit LED display)
    +100 channel (red LED) SNR (2 & 1 digit LED displays)
    Lock LED (solid LED)
    No lock (flashing LED)
    RF mode (2 & 1 digit LED displays)
    Baud rate (2 & 1 digit LED displays)
    Firmware revision (2 digit LED display)
    Software revision (2 & 1 digit LED displays)
    Unit reset (2 & 1 digit LED displays)
    Front Panel Control CH UP/DN push-buttons (increment major or minor channel up/down)
    ENT push-button (enters or confirms selection)
    RF Mode push-button (adjusts RF frequency plans)
    Baud Rate push-button (adjusts baud rates)
    SNR push-button (measures input signal-to-noise ratio)
    QAM/8VSB push & hold button (toggles between QAM & 8VSB)
    RF mode & baud rate simultaneously (unit reset)
    PROG (custom mini USB-to-RS232 interface for control)
    General
    Power 110 VAC/60 Hz or 220 VAC/50 Hz
    Power Dissipation 7 W (per MDDA module)
    Operating Temperature 32 to 122°F (0 to 50°C)
    Storage Temperature -13 to 158°F (-25 to 70°C)
    Operating Humidity 0 to 95% RH @ 35°C max, non-condensing
    Storage Humidity 0 to 95% RH @ 35°C max, non-condensing
    Dimensions (W x D x H) 1.15 x 7.5 x 3.5" (2.9 x 19.1 x 8.9 cm)
    Weight 0.8 lb (360 g)
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