Test & Measurement

ThinkRF D4000 RF Downconverter for spectrum analyser use

3rd July 2020
Alex Lynn

Saelig Company has introduced the compact ThinkRF D4000 RF Downconverter, designed to extend the usefulness of existing spectrum analysis equipment by down-converting RF signals from the 24 to 40GHz frequency bands down to an intermediate frequency (IF) of 1.536GHz with 100kHz tuning resolution.

The D4000 RF Downconverter works with existing test equipment, RF signal detectors, and interfaces, and thus minimises user training requirements, while enabling these products to offer 5G and beyond analysis capabilities.

The ability to measure high frequency 5G signals is rapidly becoming a necessity, but many existing spectrum analysers and test equipment are limited with historical low frequency ranges and unable to measure the frequency bands of the future. The ThinkRF D4000 RF Downconverter is designed to extend the range of existing analysers and 3G/4G test equipment to enable them to provide 5G analysis capabilities. The D4000's built-in preselect filtering eliminates out-of-band signals and enables spurious mitigation.

This RF downconverter can be controlled by a PC or spectrum analyser, and offers optional 10MHz clock synchronisation. As 5G mobile and wireless communication technologies continue to draw on wider bandwidths and higher frequencies users can run multiple D4000 units in parallel to monitor, detect, and analyse these signals at a lower cost, without replacing their current investment in RF signal detectors.

  • Extends the range of existing RF signal detectors and spectrum analysers to 24-40GHz bands
  • Real-Time Bandwidth (RTBW) up to 500MHz
  • Downconverter IF output at 1.536GHz
  • Pre-select filtering: Sophisticated RF filter technology eliminates out-of-band signals and enables spurious mitigation, eliminates interference within the analysis bands. 
  • Open software platform works seamlessly with common spectrum analysis solutions
  • SCPI remote control via Ethernet 
  • Increased performance at a lower cost using existing instrument solutions
  • Compact and portable to suit most applications

In the lab, on the manufacturing floor, or in the field, the Model D4000 is a powerful yet economical solution for 5G signal investigation, since it retains and upgrades existing field, lab, and manufacturing test equipment, and extends the life of hardware investments. Measuring 7.6x7.6x1.6” and weighing less than 2.2lbs, the compact D4000 RF downconverter is portable, versatile, and easy to use for 5G analysis in any deployment scenario. The input power requirement of +12 VDC at 20W allows it to be used with an external battery, a vehicle power outlet, or a standard wall-mount power supply.

Made by ThinkRF the D4000 RF Downconverter is available now from Saelig Company, their USA technical distributor. 

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