Particulars of Radar

SK-1 : Type: Long range air search; Accuracy: Range plus and minus 150 yds (short range scale); bearing-plus and minus 3 degrees; altitude-plus & minus 2000'.

SC-2 : Type: This was similiar to as SK but employed a different antenna and a few other changes; Accuracy : Range-plus and minus 200 yds (or 1/4 % of range scale whichever is greater); bearing and altitude-plus and minus 1/2 degree (with conical scan).

SG-1 : Type : Surface Search; Accuracy : Range-plus and minus 200 yds (on 15,000 yd range scale); bearing-plus and minus 2 degrees.

Mk 4 : Type: AA fire control for Mk 37 director; Accuracy: Range-plus and minus 50 yds; bearing-plus and minus 4 miles; elevation-plus and minus 5 miles above 10 degrees.

Mk 12 : Type : AA fire control for Mk 37 director; Accuracy : Range-plus and minus 15 yds; bearing and elevation-plus and minus 3 miles (slow targets).

Mk 22 : Type : Low angle height finding in conjunction with Mk 12; Accuracy : Elevation-plus and minus 3 miles.