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A bit more detail. MSQ-1 was modified SCR 584 with plotting table and bombing box. VHF control link to aircraft or missile. Apparently three-pulse train to APW-11, position modulated. Second pulse acts as identifier, third pulse ("modulated at a combination of audio frequencies") provides command - energises any one of 14 control circuits or any pair of first six circuits. When connected to APA-90, illuminates a command caption - or could be used for remote bomb reelease

[QUOTE="yellowaster, post: 764508, member: 2479"] A bit more detail. MSQ-1 was modified SCR 584 with plotting table and bombing box. VHF control link to aircraft or missile. Apparently three-pulse train to APW-11, position modulated. Second pulse acts as identifier, third pulse ("modulated at a combination of audio frequencies") provides command - energises any one of 14 control circuits or any pair of first six circuits. When connected to APA-90, illuminates a command caption - or could be used for remote bomb reelease [/QUOTE]

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