Can you recommend a book on Swordfish-carried radar?
Short answerUse With Naval Wings, Swordfish, and Eric Brown's Wings on My Sleeve; the subject is covered in sections rather than one dedicated book.
NotesJohn Wellham's With Naval Wings and David Wragg's Swordfish contain relevant sections on the subject. Eric Brown's Wings on My Sleeve adds the perspective of someone involved in testing radar on the Swordfish. None is presented as a complete monograph on the radar installation itself. Together they provide a route into a topic scattered across aircraft histories and memoir.