Facebook hits 20Gbps in testing for internet drone data transmission

Facebook has succeeded in transmitting data at almost 20Gbps between two towers in Southern California in tests of a technology key to its plans to deliver internet service to rural areas using drones.The tests were conducted earlier this year and made use of frequencies in the so-called E-band, a group of millimeter wave frequencies between 60 and 90GHz.Such signals are capable of high-bandwidth data transmission but are susceptible to attenuation from distance, weather, and obstacles, so they