Chronos have been invited to speak at the Joint Navigation Conference in the US 27-30 June 2011. Andy Proctor of Chronos will deliver an update on both the GAARDIAN and SENTINEL programs to the conference on the 30th June, on the subject of "Improving the Security and Safety of PNT Based Applications and Critical Infrastructure". This presentation gives detail on the experimental UK GNSS monitoring network, discuss current testing and operational results. Development testing and simulation will be discussed as well as the key global technological firsts being delivered as part of the SENTINEL program, including some recent test results for an alternate PNT system to GPS. During the event, discussion on cross-nation collaboration will also take place. For more information see the JNC website at LINK or contact Andy Proctor at This e-mail address is being protected from spambots. You need JavaScript enabled to view it