Similar to a network firewall, the BlueSky GPS Firewall protects systems inside the firewall from untrusted sky-based signals outside the firewall.
Contained within the BlueSky GPS Firewall is a software engine that analyses the GPS signal. GPS signal data is received and evaluated from each satellite to ensure compliance along with analysing received signal characteristics.
Microsemi’s BlueSky GPS Firewall is deployed in-line between an existing GPS antenna and GPS receiver system and can be placed near the GPS receiver system or near the point at which the GPS antenna cable enters the building. Thus, nearly all currently deployed GPS antennas are supported without modifying the existing installation.