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Blonder Tongue Micro ATSC/QAM Transcoder (MDDA-860)

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Blonder Tongue Micro ATSC/QAM Transcoder (MDDA-860)

Brand: Blonder Tongue           P\N: MDDA-860          

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Availability: Usually Ships Same Day
Condition: New

Your Price: $52999

List Price: $699.99


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Solid Signal is an Authorized Reseller of Blonder Tongue products.
Solid Signal is an Authorized Reseller of Blonder Tongue products.
The MDDA-860 is a digital demodulator and transcoder that receives one input in ATSC 8VSB (digital off-air) or “clear” QAM (digital cable) format and delivers one output in ASI format.


  • Input standards supported are digital off-air (8VSB) and digital cable (ITU-B QAM 64 and 256)

  • Die-cast Chassis Offers Superior 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




Connector: “F” Female
8VSB:ATSC Digital Television Standard A/53E
QAM:ITU-T J.83 (64 and 256 QAM)

8VSB Mode
Tuning Range:UHF (NTSC Ch. 14-78), VHF (NTSC Ch. 2-13)
Symbol Rate:10.762 Msymbols/sec
Bandwidth:6 MHz

QAM Mode
Tuning Range:CATV (NTSC Ch. 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:12dB
Impedance:75 Ω


ASI: 1 x F (equipped with F-to-BNC adapter)
Standard:DVB-ASI; 50083-9
Data Bit Rate:270 Mbps

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)


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