Monica (radar)

Monica
	Monica Mk III Indicator Unit
Country of origin	the United Kingdom
Introduced	June 1942

Monica was a range-only tail warning radar for bombers, introduced by the RAF in June 1942.^[2] Officially known as ARI 5664,^[3] it operated at frequencies of around 300 MHz (on the boundary between VHF and UHF). The system was also used by the US Army Air Forces, under the name AN/APS-13, and the nickname Archie.

^ Robert Forczyk (20 June 2013). Bf 110 vs Lancaster: 1942–45. Bloomsbury Publishing. pp. 15–. ISBN 978-1-78096-318-1.
^ "Bf 110 vs. Lancaster", Robert Forczyk, Osprey Publishing, 2013, p. 11
^ René J. Francillon (9 December 2017). HIGH-SPIRITED MUSTANG Volume I: The saga of the North American Aviation P-51 Mustang - Part 1 : Development and Production. Eirl Aerosphere Research. pp. 168–. GGKEY:25JLGUZ502L.

[Forczyk2013-1] Robert Forczyk (20 June 2013). Bf 110 vs Lancaster: 1942–45. Bloomsbury Publishing. pp. 15–. ISBN 978-1-78096-318-1.

[2] "Bf 110 vs. Lancaster", Robert Forczyk, Osprey Publishing, 2013, p. 11

[Francillon2017-3] René J. Francillon (9 December 2017). HIGH-SPIRITED MUSTANG Volume I: The saga of the North American Aviation P-51 Mustang - Part 1 : Development and Production. Eirl Aerosphere Research. pp. 168–. GGKEY:25JLGUZ502L.

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