The compact ThinkRF D4000 radiofrequency (RF) downconverter is designed to extend the usefulness of existing spectrum analysis equipment by down-converting RF signals from the 24 to 40 GHz frequency bands to an intermediate frequency (IF) of 1.536 GHz with 100 kHz tuning resolution. The D4000 works with existing test equipment, RF signal detectors and interfaces, and thus minimizes 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 analyzers and test equipment are limited with historical low frequency ranges and unable to measure the frequency bands of the future. The ThinkRF D4000 is designed to extend the range of 
Source: Saeligexisting analyzers and 3G/4G test equipment to enable them to provide 5G analysis capabilities. Its built-in preselect filtering eliminates out-of-band signals and enables spurious mitigation.
This RF downconverter can be controlled by a PC or spectrum analyzer and offers optional 10 MHz clock synchronization. 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 analyze these signals at a lower cost without replacing their current investment in RF signal detectors.
