Thanks for the help.
I've cross referenced this picture with another of an essex class carrier which seems to have the same equipment.
http://commons.wikimedia.org/wiki/File: ... _1950s.jpg
So it seems that
A = TACAN URN-3
B = SPS-10
C = SPS-12
D = ???
E = ??? Comms or Meterological sensors?
F = ???
G + H = WLR-1 ECM
I = ???
J = CAGW-66132 "Sword" ECM monitoring antenna
K = ??? Air Traffic Radar???
and the unmarked height finder should be an SPS-8A (?)
Here's a snap of the WIP for 1955...