Ofcom is holding a consultation on the use of Global Navigation Satellite System (GNSS) repeaters which operate in the following band 1164-1215 MHz, 1215-1300 MHz and 1559-1610 MHz. These cover both the US Global Positioning System and EU Galileo GNSS. A repeater system consists on an external aerial, a transmitter and an internal aerial which would allow GNSS reception indoors where normally there would be no reception. Ofcom is proposing a light licensing regime whereby users of GNSS repeaters would have to register their location with Ofcom. This is to quell concerns from the Civil Aviation Authority (CAA) who believe there could be aircraft interference. This proposal is in-line with CEPT and EU recommendations. This does not cover any kind of mobile repeater use (unless operated by a licensed Mobile Network Operator) or any other technology which could cause interference and any such use would still be a criminal offence under the Wireless Telegraphy Act (WTA) 2006. The consultation (available here) closes 16th April 2012.