Torrent Q16IP IPTV QAM Modulator

Home » OEM Products » Torrent QAM/COFDM Modulator Products » Torrent Q16IP IPTV QAM Modulator

Ideal for edge QAM applications, the Torrent Q16IP moves your video streams from IP to 16 RF Annex B QAM channels in a 1RU footprint, providing space savings and performance at a competitive price.

Q16IP QAM ApplianceThe Q16IP 16 channel RF EdgeQAM is the newest member of the Company's TorrentTM family of high performance, low cost per stream DTV modulators. The VideoPropulsion Q16IP maps video transport streams from an IPTV source onto 16 QAM channels in four sets of 4 adjacent channels. Each 256QAM Annex B channel is capable of up to ten 3.8 Mbps SDTV, three 12.9 Mbps EDTV, two 19.4Mbps HDTV streams, or any other mix of streams that does not exceed the total 256QAM Annex B bitrate. Integral upconversion to RF output provides the ultimate in flexibility by eliminating the need for external upconverters and messy cabling. The completely self-contained Q16IP can be configured and maintained from a web browser.

Product Highlights - Benefits

  • Sixteen RF QAM channels with 6 MHz bandwidth, sixteen channels with 8 MHz bandwidth
    • Higher QAM density and lower cost per stream
  • User selectable 16QAM, 32QAM, 64QAM, 128QAM, and 256QAM modes
    • Adaptable to a wide range of applications
  • Upconversion to 50 - 860 MHz RF output (also available without upconversion)
    • Eliminates external upconverters and cabling
  • Web-based management and configuration GUI
    • Flexible, targeted configurations with minimal development

The Q16IP hardware collects MPEG-2 transport streams directly from an IPTV stream and multiplexes them into multiple program transport streams that are transmitted with upconversion using 16QAM, 32QAM, 64QAM, 128QAM, or 256QAM modulation with variable symbol rates up to 7 Msymbols/second. Forward Error Correcting (FEC) encoding complies with ITU-T J.83 Annex A (DVB/DAVIC/EuroDOCSIS/IEEE802.14), Annex B (DigiCipherII/SCTE/DOCSIS/IEEE802.14), and Annex C (Japan).

Options for the Q16IP include an additional 8 QAM channels, encryption of the output streams, and IF output.

  • Features
  • Specifications

Functional Specifications
Input:

  • IPTV UDP/RTP MPEG-2 Transport streams
  • Data can be any combinations of single program transport streams (SPTS)

Output:

  • MPEG-2 multiple program transport stream (MPTS)
  • Modulated with 16QAM, 32QAM, 64QAM, 128QAM, or 256QAM
  • Variable symbol rates up to 7 Msymbols/second
  • ITU-T J.83 FEC encoder
    • Annex A (DVB/DAVIC/EuroDOCSIS/IEEE802.14)
    • Annex B (DigiCipherII/SCTE/DOCSIS/IEEE802.14)
    • Annex C (Japan)
  • Output carrier: 50 - 860 MHz RF with 12.5KHz resolution
  • Ouput impedance: 75 Ohms
  • Output connector: F connector (4)

Q16IP Detailed Specifications
Environmental: 5C to 60C Operating Temperature Range
0% to 95% Humidity, non-condensing
Power Requirements: 100 - 240VAC, 50/60 Hz
350 Watts
Network: Dual 10/100/1000Base-T
Output carrier frequency range: 50 MHz to 860 MHz
Frequency stability: ±12 ppm
      0-60 degrees C
RF Output Level (Min/Max): 45 dBmV min, >55 dBmV Max
Output level accuracy: ±1 dB
      Based on internal power detector's accuracy
      Pout = 45 dBmV to 61 dBmV
      Fout = 50 MHz to 860 MHz
Output Level Step Size: 0.1 dB typical, 0.3 dB Max
Output Impedance: 75 Ohms
Output Connectors: F type RF connector (4)
RF Output Return Loss: 14 dB Min, 16 dB typical
      50 MHz to 860 MHz
In-band Spurious Outputs: -48 dBc Max
      Fout ±3 MHz
      Pout = 58 dBmV
      Noise within ±50 kHz of the carrier is excluded
Broadband noise: -12 dBmV Typical, -10 dBmV Max
      47 MHz to 860 MHz
      Pout = 58 dBmV
      Integrated over 6 MHz
Phase noise: 0 kHz offset
  50 MHz = Fout < 100 MHz:   -90 dBc/Hz Typical, -85 dBc/Hz Max
  100 MHz < Fout < 400 MHz:   -91 dBc/Hz Typical, -85 dBc/Hz Max
  400 MHz < Fout < 800 MHz:   -90 dBc/Hz Typical, -85 dBc/Hz Max
  800 MHz < Fout = 860 MHz:   -88 dBc/Hz Typical, -85 dBc/Hz Max