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Decimator D4

4/8 Port RF Spectrum and Signal Analyzer

The Calian Multi-Port Decimator D4 is a 4th generation spectrum monitoring and signal analysis unit with several built-in functions including carrier monitoring, cross-polarization measurements, and optional DVB signal demodulation and analysis. It can be operated from all platforms, including all browsers and Android and iOS devices, through its HTML5-based web user interface. Designed for users who require advanced spectrum monitoring and signal analysis, the Decimator D4 remotely monitors RF communications and detects signal problems. It is a multi-port wideband spectrum analyzer with carrier monitoring that can be used for satellite signals in L-band, C-band, Ka-band, Ku-band, and Q/V-band frequencies, making it ideal for monitoring satellite, wired, and ground wireless network RF feeds and carriers.

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Key Features

  • Secure web browser user interface accessible on all devices
  • Analysis frequency range of 5 MHz to 6.5 GHz(SMA), 5MHz to 3GHz(F-Type)
  • Carrier monitoring and cross-pole measurement
  • DVB-S/S2/S2X demodulation and signal analysis
  • Constellation display and waterfall display
  • Programmable email and SNMP alarms can be set, and multiple people can be immediately notified if a signal deviates from a pre-set threshold
  • Up to 10 simultaneous remote users can connect to the D4 decimator and perform ad hoc measurements

Advanced Features

Cross Pole Isolation Measurement

The Decimator D4 Spectrum Analyzer measures and displays cross-pole isolation in remote satellite communication and VSAT terminals. Both pole signals and cross-pole signals are displayed simultaneously, making it easy to confirm the measured isolation. The measurement results can be exported and saved, providing a record of cross-pole performance during normal operation or carrier line-up.

Spectator Add-On – Advanced Spectrum Monitoring

The Spectator software add-on license offers advanced spectrum monitoring capabilities for Decimator D4 spectrum analyzer.
Spectator allows you to view up to 100 carriers at a glance in a single window, play back individual carrier traces, view trend plots and more.

Detector Add-On – Advanced Signal Monitoring

Detector software allows users to display multiple signal constellation displays on a single screen.
Users can monitor multiple (up to 100) carriers at a time for viewing demodulated signal characteristics, including historical view.
The display can be configured to monitor only signals from carriers of interest or to view only carriers that have alarm conditions.

Illuminator Add-on
The Illuminator software add-on is ideal for users with multiple Decimators. 
It’s a multi-site carrier monitoring solution with centralized monitoring and control of your entire set of carriers.
Illuminator provides the same dashboard visual features of Spectator and Detector to view your current results from multiple remote sites, and it allows you to navigate your long-term results for a particular carrier at any remote site.

Specifications

Hardware
Decimator D4
InterfacesRF Input
  • 8 x Type F, 75 Ω or
  • 8 x SMA, 50 Ω
Control
  • RJ-45
Reference
  • BNC, 50Ω
PSU
  • IEC 60320
RF InputInput Frequency Range
  • 5 MHz ～ 6.5 GHz (50Ω SMA)
  • 5 MHz ～ 3GHz (75Ω Type F)
Dynamic Range
  • – 110 ～ +5 dBm (Aggregate)
Noise Floor
  • – 150 dBm/Hz (Minimum Attenuation, typical)
  • – 130 dBm/Hz (Maximum Attenuation, typical)
Phase Noise (worst case @ 6 GHz)
  • – 95 dBc/Hz, 100 kHz offset
  • – 125 dBc/Hz, 1MHz offset
Maximum Input
  • + 10 dBm
Input Isolation (Port-to-Port)
  • 55 dB
Input Return Loss
  • – 15 dB
MeasurementAmplitude Accuracy
  • ± 0.5 dB (25°C)
      *Measurement Conditions: 10-Average, Input Level: -8 ～ -68dBm, Standard Deviation 3
  • ± 1.0 dB (0 ～ 40°C)
Frequency Accuracy
  • ±2.6ppm (Internal) or equivalent to External
Frequency Resolution
  • 1 Hz
Resolution Bandwidth
  • 1 Hz ～ 15 MHz
Analysis Bandwidth
  • Maximum 260 MHz
SpuriousImage Signal
  • < -55 dBc (typical)
Aliasing
  • < -55 dBc (typical)
DC Offset
  • < -30 dBc (typical)
Averaging
  • Maximum 255 Times
Measurement Time*500 MHz span, 1 MHz RBW
  • 200ms
200 MHz span, 30 kHz RBW
  • 630 ms
80 MHz span, 100 kHz RBW
  • 170 ms
3.5 MHz span, 8 kHz RBW
  • 90 ms

*Expected speed when 10 averages performed with speed optimization

Supported Modulation Standards and Error Correction Coding Rates
Decimator D4
MODCODDVB-S

    • QPSK ½, 2/3, ¾, 5/6, 7/8


DVB-S2

    • QPSK ¼, 1/3, 2/5, ½, 3/5, 2/3, ¾, 5/6, 8/9, 9/10; 8PSK 3/5, 2/3, ¾, 5/6, 8/9, 9/10; 16APSK 2/3, ¾, 4/5, 5/6, 8/9, 9/10; 32APSK ¾, 4/5, 5/6, 8/9, 9/10


DVB-S2X

    • QPSK 13/45, 9/20, 11/20; 8APSK 5/9L, 26/45L, 23/36, 25/36, 13/18; 16APSK 1/2L, 8/15L, 5/9, 26/45, 3/5, 3/5L, 28/45, 23/36, 2/3L, 25/36, 13/18, 7/9, 77/90; 32APSK 2/3L, 32/45, 11/15, 7/9


Other / PSU
Decimator D4
OthersReference Input

    • 10 MHz, -5 ～ +13 dBm, +3 ～ +13 dBm (auto-detect)


Control Interface

    • TCP/IP, API, SNMP, HTTPS


Operating RequirementsPower

    • 90-264 VAC, 50/60 Hz, 25W


Operating Temperature

    • 0 ～ 40°C


Size50Ω Unit

    • Height 5cm

    • Width 48.5 cm (including mounting bracket)

    • Width 44 cm (without mounting bracket)

    • Depth 27.5 cm

    • Weight 3.17kg


75Ω Unit

    • Height 5cm

    • Width 48.5 cm (including mounting bracket)

    • Width 44 cm (without mounting bracket)

    • Depth 28.5 cm

    • Weight 3.17kg


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