User's Manual

Screen Service SDT 200UB - 500UB ARK 1 Purpose and planning
July, 2009 v 1.0 Page 2 - 8
2.6.5 ATSC MODULATION
Modulation Modes 8VSB
Inputs 2 ASI + 2 SSI
Input Data Rate up to 19.39 Mbps
Channel Bandwidth 6 MHz
Symbol Rate 10.762 MSymbol/sec
Bandwidth Efficiency 3 Bits/symbol
PCR Restamping and Del. Null Packet Included
Frequency Step 1 Hz
Test Signal PRBS, CW
GPS Receiver Integrated
Adaptive Digital Precorrector Integrated
2.6.6 OUTPUT PARAMETERS
2.6.6.1 ATSC MODE
Nominal output power 8W rms (SDT 200UB ARK-1)
20W rms (SDT 500UB ARK-1)
In Band Flatness ± 0.5dB
Shoulders at F
0
± 4.3 MHz better than 40 dB
With pre-correction inserted
Spurious emission (with output filter)
 < -60 dBc
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