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Product.Nr.: 9184

product description


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The WiNRADiO WR-G33DDC „EXCALIBUR PRO“ is a high-performance, low-cost, direct-sampling, software-defined, shortwave receiver with a frequency range from 9 kHz to 49.995 MHz. It includes a real-time 50 MHz-wide spectrum analyzer and 4 MHz-wide instantaneous bandwidth available for recording, demodulation and further digital processing.

This receiver is an advanced version of the WR-G31DDC receiver, offering many additional features and improvements:

  • 4 MHz instantaneous processing bandwidth
  • Low-noise preamplifier
  • Configurable preselection filters
  • Filter bandwidth adjustable down to 1 Hz
  • 0.5 ppm frequency stability
  • Test and measurement functions
  • Pause function


  • 9 kHz to 49.995 MHz continuous frequency range
  • Direct sampling
  • Digital down-conversion
  • 16-bit 100 MSPS A/D conversion
  • 50 MHz-wide, real-time spectrum analyzer
  • 4 MHz recording and processing bandwidth
  • Continuously adjustable filter bandwidth down to 1 Hz
  • Three parallel demodulator channels
  • Pause function
  • Waterfall display functions
  • Audio spectrum analyzer
  • Audio and IF recording and playback
  • Recording with pre-buffering
  • EIBI, HFCC and user frequency databases support
  • Networking version of application software available
  • Very high IP3 (+31 dBm)
  • Excellent sensitivity (0.20 µV SSB, 0.10 µV CW)
  • Excellent dynamic range (107 dB typ.)
  • Excellent frequency stability (0.5 ppm)
  • Selectable medium-wave filter
  • User-configurable preselector
  • Selectable low-noise preamplifier
  • Test and measurement functions
  • USB 2.0 interface

What's included?
The standard WR-G33DDC package includes:
  • WR-G33DDC receiver
  • User's guide
  • Application download instructions (CD ROM provided on request)
  • Low-noise switch-mode power supply
  • USB cable
  • BNC-to-SMA adapter

System requirements:

  • PC with 2.4 GHz quad core CPU or faster
  • 1 GB of RAM
  • One free USB 2.0 socket
  • Windows 7, 8, 10 or 11

The following factory-fitted hardware options are available for WR-G33DDC receiver:

  • External Reference Oscillator Option (/XR): This option includes an additional SMA connector, which can be used to connect an external 10 MHz reference oscillator for the highest possible frequency accuracy. The reference oscillator can be either sine or square wave between -5 dBm to +10 dBm (Item No. 9184-XR).

Detailed Technical Specifications