Trials of 'super WiFi' that uses white space between TV channels to begin in Cambridge
By DAMIEN GAYLE Last updated at 9:24 AM on 29th June 2011 Trials of a new breed of 'super WiFi' that uses the white space between TV channels are set to begin in Cambridge. Microsoft, the BBC, BSkyB and BT are among the tech giants investigating how the gaps in frequencies between TV broadcasts can be used to transmit broadband. They hope the technology could help them create 'super WiFi' networks that can support bandwidth hungry mobile internet devices like smartphones and tablet computers. The aim of the trials, which begin this week, is to show that the new services do not interfere with TV signals. So-called 'white space' includes the unused frequencies in the TV spectrum - between 470MHz and 790MHz - which are left empty to avoid broadcasts leaking into one and other. With wavelengths much lower than regular WiFi, these frequencies are able to travel further and penetrate much more deeply into buildings, raising the possibility of regional broadba...