What is a radio link?

A radio link is a wireless connection between two nodes, or radio units, in a data network. Each radio unit consits of a tranceiver and a highly directive antenna, typically operating at microwave frequencies in the range of 6 – 23 GHz. However, the capacity of the radio links increases with frequency, and antennas for e.g. 70 – 80 GHz are being deployed to an increasing extent. Depending on frequency, the maxium communication range for a radio link varies between a few meters to hundreds of kilometers.