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DVB-S2 modulator / S2X modulator

Product code: CMS0025

The CMS0025 "SkyPlug" DVB-S2 / DVB-S2X (A)PSK modulator is an integrated modulator and channel-coder core designed specifically to address the requirements of the ETSI DVB-S2 and DVB-S2X forward-link satellite Standard (EN302307-1 and EN302307-2), with optional DVB-S2X VLSNR support. It can operate in CCM and VCM/ACM modes and is fully compliant with the standard.


DVB-S2 modulator / S2X modulator DVB-S2X Standard
DVB-S2 modulator / S2X modulator DVB-S2 Standard
DVB-S2 modulator / S2X modulator DVB-CID Standard

Block diagram

DVB-S2 modulator / S2X modulator block diagram (click to enlarge)
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Safari Plug-in

DVB-S2 modulator / S2X modulator safari plug-in (click to enlarge)
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Standards compliance

  • ETSI EN 302 307-1
  • ETSI EN 302 307-2
  • ETSI EN 103 129


  • Support for DVB-S2, DVB-S2X and VLSNR.
  • Support for CCM, VCM and ACM modes.
  • Variable sample-rate interpolation provides ultra flexible clocking strategy.
  • Compatible with Broadcast, DSNG, Interactive and Professional DVB-S2 / DVB-S2X profiles.
  • QPSK, 8PSK, 16APSK, 32APSK support.
  • 64-APSK, 128-APSK and 256-APSK support.
  • Short (16kb) and normal (64kb) frames.
  • Optional VLSNR frames (32kb).
  • Frames with/without intra-frame pilots.
  • Automatic dummy-frame insertion.
  • Integrated LDPC Channel Coder.
  • Configurable for either low-latency or high throughput encoding.
  • Optional simultaneous DVB-CID modulation.
  • Optional internal IF conversion.
  • Optional noise source.
  • Optional CPU-free configuration.
  • External AD9857/AD9957 DDS interface.
  • Automatic AD9857/AD9957 programming.


  • DVB-S2 transmission systems and high-performance point-to-point microwave transceivers.
  • Test equipment.


Plug-ins / Extensions