Some notes I compiled :
Radar ("Radio Detection And Ranging") was a revolutionary development that eventually altered nearly every aspect of naval combat. Aircraft carriers generally employed air search and fire control radars. Air search radar probed for aircraft. While maximum range varied with the target's altitude and size, naval air search radar of the time was capable of detecting aircraft 60-100 statute miles away: sometimes more. Air search radar was often augmented with height finder radar - to determine a target's altitude - and IFF (Identification Friend or Foe) systems, an automated mechanism for distinguishing friendly aircraft from those of the enemy.
CXAM-1 Search Radar
Description:
A large mattress-like antenna, the CXAM-1 was an improved version of the Navy's prototype search radar, the CXAM. Enterprise's sister ship, Yorktown CV-5 was the first US carrier fitted with radar, a CXAM. Installations of CXAM-1 sets began in late 1941, with some sets remaining in service through 1943.
Range:
Capable of detecting large aircraft at 10,000 feet altitude at 70 nautical miles (80.5 statute miles), or fighters (small aircraft) at 10,000 feet altitude at 50 nautical miles (57.5 statute miles).
Accuracy:
200 yards.
SC-2 Search Radar
Description:
A second-generation air search radar, the SC-2 was approximately half the size of the CXAM-1. It included an integral IFF (Identification Friend or Foe) system and limited altitude detection capabilities. An SC-2 set was installed as Enterprise's secondary search radar in late 1942, mounted on the starboard side of her funnel.
Range:
Capable of detecting large aircraft at 10,000 feet altitude at 80 nautical miles (92 statute miles), or fighters at 10,000 feet altitude at 40 nautical miles (46 statute miles).
Accuracy:
100 yards.
SK Search Radar
Description:
Essentially an SC-2 with a larger (CXAM-sized) antenna. Capable of detecting a medium bomber at 10,000 feet and 100 nautical miles, Enterprise's SK set was installed during her fall 1943 refit at Bremerton, Washington, replacing the CXAM-1 set, along with an SM height finder. The SC-2 secondary search radar was retained.
Range:
Capable of detecting large aircraft at 10,000 feet altitude at 100 nautical miles (115 statute miles). The SM height finder, located atop and at the rear of Enterprise's tripod mast, could detect large aircraft at 10,000 feet altitude at 50 nautical miles (58 statute miles).
Accuracy:
100 yards; SM accuracy was 200 yards, or 500 feet in elevation.
This site gives a little info :
http://www.navweaps.com/Weapons/WNUS_Radar_WWII.htm
And here's a better one :
http://www.history.navy.mil/library/online/radar-1.htm
