powervu D9390 Advanced DVB-S Modulator IF output

  • $444.00

  • Brand: Scientific Atlanta
  • Model Number: D9390
  • Product Code: BS18376
  • Availability: In Stock
  Usually dispatched in 2-4 working days

Scientific-Atlanta’s PowerVu® Advanced Modulator now offers DVB-compliant higher order modulation technology in two unique configurations in order to meet satellite operator needs. A standalone 1RU, multi-mode D9390 modulator is shown in the diagram. The same technology has been repackaged as a multi-mode, one-card D9752 modulator solution that can be installed in the Originator™ encoding platform.

Both products feature DVB-compliant QPSK, 8PSK and 16QAM-capability and also utilize flexible digital signal processing techniques for versatility. The PowerVu Advanced Modulator accepts redundant DVB-ASI (single DVB-ASI in the modulator card) and outputs a QPSK, 8PSK or 16QAM modulated signal. This higher order modulation can save operators money, as it requires less transponder space for a given transmission bit rate, or a higher bit rate in a given bandwidth.

powervu D9390 Advanced DVB-S Modulator IF output

Technical Details








Modulation and Encoding

Modulation: DVB QPSK, 8PSK, 16QAM Framing and Coding: Compliant with DVB-S EN 300 421 and DVB-DSNG EN 301 210


Viterbi FEC Rates:

QPSK: 1/2, 2/3, 3/4, 5/6, 7/8 (Convolutional Coding)

8PSK: 2/3, 5/6, 8/9 (“Pragmatic” Trellis Coding)

16QAM: 3/4, 7/8 (“Pragmatic" Trellis Coding) Reed Solomon: 204, 188, T=8 Convolutional Interleave: Depth of 12 Symbol Rate: 1.042 to 35Mbaud (100 baud stepsize)






Outputs and Monitor/Control

Output connector: BNC (female)

Impedance: 75

Output Return Loss: -20 dB Max.

Output Level: 0 to -25 dBm (0.1 dB stepsize) Output Level Accuracy: + 0.5 dB Synthesizer Phase Noise: Exceeds IESS-310 requirements <2.048 Mb/s

Output Spurious (except CW mode):

In-Band: >50 dBc/4 kHz (in-carrier bandwidth) Out-of-Band: >80 dBc/4 kHz (full transponder carrier), >60 dBc/4 kHz (1/4 transponder carrier)


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