Type 1022 radar

The Type 1022 was an L-Band, long range, surveillance radar used by the Royal Navy. It is described as a STIR, Surveillance, and Target Identification Radar.^[1]

Type 1022 radar on HMS Illustrious

Introduction

Following trials on HMS Grenville, Type 1022 was first installed in HMS Exeter in 1978, and HMS Invincible in 1979.^[1] Following successful implementation in newly built warships it was then adopted in further units during refit; these include: Early (Sheffield Class) Type 42 destroyer, Type 82 destroyer.

Performance

During the Falklands War many ships were fitted with the older Type 965 and 992Q radar systems.^[2] They were ineffective against the low flying aircraft using land for cover.^[3][4] The 1022 upgrade allowed better target acquisition on low flying, ground hugging targets. The Type 1022 radar is described as having a "much improved performance"^[5] compared with the Type 965, "particularly in picking out targets against a background of clutter and interference produced by unwanted returns or enemy jamming."^[5]

Technical specifications

Beam Width: 2.3°
Range: 225 nm (~259 miles)
Rotations speed: 6-8 RPM
Band/Wavelength: 1–2 GHz (Civil L-Band, Military D-Band)

References

1. Friedman, Norman (2006). The Naval Institute Guide to World Naval Weapon Systems. Naval Institute Press. pp. 299–300. ISBN 1557502625.
2. Moore, John (1981). Jane's Fighting Ships 1981-1982. London: Jane's Publishing Company Ltd. ISBN 0 7106-0728-8.
3. Hart-Dyke, David (2007). Four Weeks in May: The Loss of HMS Coventry. London: Atlantic Books. ISBN 978-1-84354-590-3.
4. Woodward, John F. (2012). One Hundred Days: The Memoirs of the Falklands Battle Group Commander. Hammersmith, London: Harper Collins. ISBN 9-780007-436408.
5. Marriott, Leo (1990), Royal Navy Frigates Since 1945 (2 ed.), Ian Allan Ltd, p. 118, ISBN 0-7110-1915-0