The link from Dutch wireless equipment maker Infinet with operating partner Flex used its Quanta 70 platform between the towns of Klin and Dubna in the Moscow region. Wireless systems in the 71-76 GHz bands are normally designed for establishing millimetre-wave radio links over distances ranging from hundreds of meters to several kilometres only, all in clear line of sight (LOS) conditions.
The millimetre-wave link used 70 cm (2 ft) antennas mounted on telecoms towers at heights of 100 m at each end. The antennas were aligned with a beamwidth of only 0.5 degrees. Over a period of one week, the link was tested continuously and delivered stable data streams in clear weather conditions.
"Our recent market launch of the Quanta 70 product family was a true success and it marks our first foray into the millimetre-wave bands,” said Andrey Koynov, Chief Technology Officer at Infinet Wireless. “We are in no doubt that the future of fixed wireless communication lies in these bands. And today, we have achieved outstanding results. We strongly believe that we have just set a global record for deploying the world's longest wireless link in frequency bands over 70 GHz. Many thanks to the Flex team who assisted us in delivering what looked initially next to impossible!"
The Quanta 70 Point-to-Point system is based on the company's Octopus software defined radio (SDR) platform and provides a throughput up to 480 Mbps in a 125 MHz channel width. The unlicensed 71-76 GHz band (also known as E-band) is particularly attractive to telecom and commercial operators as it has less interference than lower bands and less regulations in many countries around the globe.