Complete replacement for civil(TAAATS) and military (ADATS) systems. I believe there could be some radars in the mix but not sure if under this tender or a seperate one.
The question Dick is what does this new system deliver for the $$. TAAATS, and to a much lesser extent ADATS, were a quantum leap in technology. There is no real next generation system out there. So in essence a lot of money for shiney new gear so civil and defence systems can talk to each other. Could actually do that now by spending a much smaller amount on improving ADATS to allow inter system messaging.
But what do lesser mortals know. Much more fun adding a lot of $M to the capital budget for people to make careers out of and have lots of meetings. Realistically, $500M + !