NetMod-DVB-T/H broadcast modulator has been designed to provide a cost effective and high quality solution for broadcast network operators, as well as for system integrators facing this standard. NetMod-DVB-T/H conception eases the integration in any kind of system thanks to an intuitive Graphical User Interface and value-added features.

NetMod-DVB-T/H is fully DVB-T/H standard compliant, and takes benefits from years of experience of ENENSYS in the Digital Broadcast Network Solutions design.

NetMod-DVB-T/H offers various high grade features such as MFN+SFN, Digital Pre-Correction (optimizing overall broadcast transmission), built-in GPS receiver option, etc...

On top of that, NetMod-DVB-T/H is also featured with a set of modes that will ease installation and maintenance for network operators and broadcasters, as well as a set of configurable failover behaviour to secure regular broadcast operations.

Applications:

• DVB-T/H Digital TV Broadcast
• RF or IF Transmitter integration
• MFN or SFN synchronized transmissions

Key Points:

• High grade IF or RF output quality
• Outstanding MER, phase noise and stability
• SFN adaptation thanks to MIP packet parsing
• Linear and Non-Linear Digital Pre-Corrections (DPC)
• Smooth network integration
• User configured failover behaviour
• Intuitive Graphical User Interface
• Fast and simple integration in NMS
• FPGA based HW for Robustness and reliability

Characteristics:

• 2 ASI inputs (seamless switching on failover)
• IP input
• RF or IF main output
• RF or IF monitoring output
• 10 MHz / 1PPS external references inputs
• 10 MHz / 1PPS clock output
• ASI clock extraction for synchronization
• Fast Ethernet (10/100bT) management ports
• Embedded SNMP v2 server
• Embedded HTTP server
• Digital Pre Correction capabilities
• Failover dry relay switch

NetMod DVB-T/H Diagram

Input interfaces

• Transport Stream inputs:
  • 2 DVB-ASI (BNC 75 )
  • 10/100/1000 Base T (Pro MPEG Forum CoP#3 / SMPTE 2022)
• Signal processing
  • MIP Control
  • Input Stream Monitoring
  • PCR restamping (MFN)
  • TS bit rate adaptation (MFN)
  • Static delay (SFN)

Clocks and Synchronization

• Inputs: 10 MHz, 1 PPS, optional ASI clock, optional built-in GPS
• Output: 10 MHz, 1 PPS
• Internal clock: 10 MHz (Oven Controlled OCXO oscillator)
• Internal clock precision: .5 ppb (over one day)
• Internal clock stability: 2.10-8 per year

Control & management

• Web (HTTP)
  • 10/100 Base-T
  • Rich client interface with live statistics
  • monitoring and intuitive configuration
• System Administration: Full SNMP v2
• Front panel display: IP settings & alarms

Options

• Built-in GPS Receiver: RF antenna input (TNC 50 )
• NetMod-Dual-Output: Dual outputs (1 x IF and 2 x RF)
• NetMod-DVB-T/H-ASI-Sync: Modulator synchronization on ASI clock

Physical

• Height/Width/Depth (mm): 43/440/263 mm
• Format: 19” 1RU
• Power supply: 100-240VAC

Environment

• Operating temperature: 0 to 50°C / 0 to 122 °F
• Storage temperature: -20°C to 70°C / -4°F to 158°F
• Humidity: 0 to 95%, non condensing

Output interfaces

• RF Outputs
  • Main RF output (SMA 50 )
  • Monitoring RF output (SMA 50 )
  • 100 MHz - 870 MHz (step 1 Hz)
  • +2 to -60 dBm (step 0,1dB)
• MER: Over 43 dB in the whole band
• Shoulders: Over 55 dB
• IF Outputs
  • Main IF output (SMA 50 )
  • Monitoring IF output (SMA 50 )
  • 20 MHz - 85 MHz (step 1 Hz)
  • 0 to -30 dBm (step 0,1dB)

Modulation

• Constellations: QPSK, 16QAM and 64QAM
• Channel bandwidth: 5, 6, 7 and 8 MHz
• Time Interleaver: Native or In-Depth
• Guard Interval: 1/4, 1/8, 1/16 and 1/32
• FFT Mode: 2k, 4k and 8k
• Code Rate: 1/2, 2/3, 3/4, 5/6 and 7/8
• Network type: MFN and SFN capable
• Digital Pre Distortion: Linear & non-linear pre distortion, Intuitive settings via the GUI
• Field I & M test modes: Single tone, PRBS and MPEG generation, central carriers cancellation, White noise generator.