Howse relates an account about Bob McCormick, a Canadian radar officer winning a bet with two RN officers about the mast head radar antennas on KGV:
" ...a King George V class battleship was coming to the anchorage, but still hull-down.
Guns was saying that the battleship was Duke of York, and calling Torps all sorts of names because Torps thought it was Anson. Bob took one quick look at the far distant ship and said: 'You're both wrong. It's KGV!"
The argument stopped and then both 'professionals' started laughing. What was this single-striped, green striped, wavy striped, Colonial doing interrupting a professional discusssion between his betters? Bob had never heard either of them laugh before, and he was nervious. 'What we should do is put in a pound apeice, and the one who's right gets the three quid' he suggested.
Bob had the last laugh and the three quid of course. KGV was the only one of the class to have Type 279 air warning radar, and from almost as far as the eye could see, the mast head configuration could be distinguished from that of Type 281, which was fitted to the others."
The 279 did get duplexing after 1941-42, so it's possible that the 279 and the 281 could both have been fitted. The duplexing versions of Type 279 were most needed aboard the carriers however, and they had higher priority for the modified sets.
Entering a night sea battle is an awesome business.The enveloping darkness, hiding the enemy's.. seems a living thing, malignant and oppressive.Swishing water at the bow and stern mark an inexorable advance toward an unknown destiny.