Upgraded GPS signals

GPS is now recognised as being vulnerable to jamming either by accident or by design and despite a lot of talk from politicians there is no back up if the system goes down through jamming or spoofing.

Iridium satellites are a constellation of low orbit satellites that have been put into orbit to provide a telephone and data connection for mobile units anywhere in the world (Photo: Iridium)

GPS is now recognised as being vulnerable to jamming either by accident or by design and despite a lot of talk from politicians there is no back up if the system goes down through jamming or spoofing.