The new 'all processed' radar systems all seem to be giving problems at airfields providing services outside CAS. In the Isle of Man (Ronaldsway) a Selex ATCR-33S PSR was installed in 2011 together with a Wide Area Multilateration Mode-S SSR. It only became operational towards the end of 2017, with several limitations imposed on services outside CAS, compared with the Watchman which remains on standby.