R&S®DSA DOCSIS Signal Analyzer

Best signal quality for maximum data throughput

Key Facts

  • Demodulation and analysis of DOCSIS 3.0/3.1 and EuroDOCSIS 3.0 downstream signals in realtime
  • Demodulation and analysis of digital TV signals (J.83/A/B/C, DVB-C) in realtime
  • Residual MER ≥ 50 dB

Brief Description

Only the highest signal quality ensures maximum throughput. The R&S®DSA DOCSIS signal analyzer has been designed for supporting users by ensuring the highest signal quality

Features

  • Powerful, gapless DOCSIS downstream signal analysis
  • Digital TV signal analysis for interference-free parallel operation with DOCSIS

Specifications

RF parameters
Frequency range downstream with J.83 QAM
  upstream (model 03 only)

Key Facts

  • Demodulation and analysis of DOCSIS 3.0/3.1 and EuroDOCSIS 3.0 downstream signals in realtime
  • Demodulation and analysis of digital TV signals (J.83/A/B/C, DVB-C) in realtime
  • Residual MER ≥ 50 dB
  • Dual receivers for
    • Downstream (47 MHz to 1794 MHz)
    • Upstream (5 MHz to 204 MHz)
  • Integrated spectrum analyzer
  • 10.1" (25.6 cm) touchscreen

Brief Description

Only the highest signal quality ensures maximum throughput. The R&S®DSA DOCSIS signal analyzer has been designed for supporting users by ensuring the highest signal quality. DOCSIS is the standard for transmitting IP data within hybrid fiber coaxial (HFC) cable TV networks. The new DOCSIS 3.1 standard supports unprecedented data rates, meeting the demand for increased data throughput.

The R&S®DSA allows precise, gapless signal analysis of DOCSIS 3.0, EuroDOCSIS 3.0 and DOCSIS 3.1 signals on the physical layer in realtime. A user can detect effects that degrade signal quality, e.g. ingress, reflections and laser clipping. With its dual receivers, the R&S®DSA analyzes downstream and upstream signals (upstream in preparation). The frequency spectrum and key signal characteristics are displayed in compact overviews and diagrams, providing conclusive information about the signal quality.

In addition to DOCSIS signals, the R&S®DSA can analyze digital TV signals such as J.83 A/B/C and DVB-C. Although IP data transfer is consuming more and more transmission capacity, digital TV transmission continues to play an important role in cable TV networks. The R&S®DSA can analyze digital TV, helping users to ensure interference-free coexistence of DOCSIS and digital TV channels.

Convenient operation via the 10.1" touchscreen, intuitive pictograms and logically structured menus allow even less-experienced users to operate the instrument after a quick introduction.

Features & Benefits

  • Powerful, gapless DOCSIS downstream signal analysis
    • FPGA-based demodulation
    • Maximum performance
    • Integrated spectrum analysis
  • Digital TV signal analysis for interference-free parallel operation with DOCSIS
    • FPGA-based demodulation
    • Realtime signal analysis

Specifications

RF parameters
Frequency range downstream with J.83 QAM 47 MHz to 1794 MHz
  upstream (model 03 only) 5 MHz to 204 MHz
Level downstream per 24 MHz up to 67 dBmV (+18 dBm)
  upstream (model 03 only) up to 67 dBmV (+18 dBm)
MER 47 MHz to 600 MHz
600 MHz to 1000 MHz
1000 MHz to 1794 MHz
≥ 50 dB
≥ 48 dB
≥ 47 dB
Spectrum analyzer
Level accuracy   ±1.0 dB
Resolution bandwidth   10 Hz to 3 MHz
Downstream demodulation
DOCSIS 3.0 (SC-QAM) J.83/A/B/C in line with CM-SP-PHYv3.0 and CM-SP-DRFI and ITU-T J.83
   Symbol rate   0.4 Msymbol/s to 7.2 Msymbol/s
   Constellation   4QAM to 256QAM (J.83A/C up to 1024QAM)
DOCSIS 3.1 (OFDM) in line with CM-SP-PHYv3.1
   Bandwidth   up to 192 MHz
   FFT modes   4K, 8K
   Constellation   16QAM to 16384QAM
General data
Screen   10.1" touchscreen
   Resolution   1280 × 800 pixel
Dimensions W × H × D 358 mm × 196 mm × 411 mm
(14.1 in × 7.7 in × 16.2 in)
Weight   ≤ 7.5 kg (16.5 lb)
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