MRD Option 8701A
This card will receive a TS that is demodulated from an 8VSB signal or it will demodulate a QAM64B or QAM256B RF input. With an 8VSB input, the card will tune to channels 2 – 69. With a QAM input, the card will tune to channels 2 – 134 in three cable frequency bands (FCC, IRC, HRC). The MRD 3187B will show a valid input only if the following three conditions are met: the receiver equalizer and FEC are locked, the RF level is greater than the “Low Warning Setting,” and the MER is greater than the “Low MER Warning Setting”. If the RF level is lower than the “Low Warning Setting” or the MER is lower than the “Low MER Warning Setting,” the red “Error” LED will illuminate on the front panel and there will be an error recorded in the Error List.
