Specifications E/F bandfrequency Used by 1975 Type 42 (Batch 1 and 2) class guided-missile destroyer DDG 11980 Invincible class aircraft carrier v stol CVS 11980 Type 42 (Batch 3) guided-missile destroyer DDG 11989 Type 23 Duke class frigate FF 12003 Albion class landing ship/platform dock L 1 Refits 1990-sep HMS Newcastle D87 Guided-Missile Destroyer Type 42 (Batch 1 and 2) class refit included installation of Type 996 radar and improved defensive systems, completed May 1991. In Service Royal Navy Chilean Navy