So this Mk38 radar unit correct?
This Mk 3 with optical range finder?
And the SG (S Band) search radar (30 miles?)
And the SK aircraft radar with a 100 mile radius?
(Sorry all, I'm a comms & electronics military veteran - I find this stuff interesting as it 'was' my job years ago).
What it means is that a Battleship could detect an aircraft from 100 miles away from the SK radar, and the SG could pin-point it (I may be wrong). The Mk3 and the Mk38 were pretty neat surface-to-surface battle radars.