Saw the same article and i can confirm it does say Searchwater 2000 although as Navaleye mentioned, it does look much smaller than that fitted to the ASaC7 (Width wise).
The RN ASaC7's have been used in most of the Army's major exercises for control, the mighty Hunter has also been used recently aswell for ISTAR i presume?, both being used lately in 'Iron Storm' so is the Army opting for their own platform?