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FLEXMod 111
DVB-T Modulator with embedded Remultiplexer
Integrated solution for the distribution/regeneration of DVB-T services. The system is composed by a demultiplexer/multiplexer and a COFDM modulator with RF output. Easily configurable through a UART serial port, allows the development of a complete and very compact modulation system.
Remultiplexer specifications

  • ASI and SPI TS inputs.
  • ASI and SPI TS outputs.
  • Automatic recognition, analysis and demultiplexing of the incoming services.
  • Visualization of the Input/Output TS bandwidth.
  • Selection and removal of unwanted services.
  • QoS (Quality of Service) function for the selected services.
  • LCN (Logical Channel Number) insertion for the selected services.
  • NIT (Network Information Table) insertion for a correct Bouquet generation.
  • Automatic service monitoring and PID tracking for the desired services.
  • Supports Service-ID remapping.
  • Embedded DVB-Tables regeneration.
  • Embedded remultiplexer for TS reconstruction.
  • PCR restamper for a correct timing reconstruction.
  • Non-volatile memory for system configuration.
  • Easy configuration through asynchronous serial port with high-level commands.
  • No need for additional programming on power-up.
Modulator specifications:

  • COFDM Modulator: DVB-T/H ETSI EN 300 744 V1.5.1.
  • Selectable RF power output up to -7dBm.
  • Digital reprogrammable filters (Precorrector).
  • Support of Hierarchical modulation.
  • Programmable Cell-ID and other H-modes.
  • The internal oscillator can be locked to an external arbitrary clock source or to a GPS pps reference clock.
  • Support to SFN-Link (packet signature for compatibility with DVB-T SFN distribution networks).
  • Frequency range 0 - 300 MHz RF out through internal 1 GHz DAC.
  • Modulation type: COFDM DVB-T (ETSI EN 300 744).
  • Channel Bandwidth: 6-7-8 MHz.
  • Carriers: 2K-4K-8K.
  • Hierarchy: Alpha 0, 1, 2, 4.
  • Constellation: QPSK, 16QAM, 64QAM.
  • FEC: 1/2, 2/3, 3/4, 5/6, 7/8.
  • Guard Interval: 1/4, 1/8, 1/16, 1/32.
  • Spectrum mode: Normal/Inverted.
  • PCR Restamper: Selectable ON/OFF.
  • SFN Compatibility:Selectable ON/OFF (packet signature for compatibility with DVB-T SFN distribution networks).
  • Output Frequency: 0-500 MHz 1 Hz Step (Internal 1Ghz DAC).
  • Output Level: -7 dBm typical.
  • MER: ›49 dB typical.
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