Editing Baltimore-class cruiser (section)

===Electronics===
[[File:USS Pittsburgh (CA-72) underway on 11 October 1955 (NH 98248).jpg|thumb|left|USS ''Pittsburgh'' with the SPS-8 on the aft mast, and the SPS-6 on the forward mast]]
Initially, the ''Baltimore''s were equipped with SG radar systems for surface targets and SK systems for airborne targets. The range of these systems for surface targets, depending on the size of the target was between {{convert|15|and|22|nmi|km}}. The SK could detect bombers at medium altitudes from {{convert|100|nmi|km}}. The radar systems were replaced in the Korean War with the more effective SPS-6 (built by [[Westinghouse Electric (1886)|Westinghouse Electric]] or later with the SPS-12 (from the [[Radio Corporation of America]] combined with an SPS-8 as a height-finder. With these systems, the detection range for bombers was increased to {{convert|145|mi|km}}. The ships in active service longer received further upgrades in their final years: the SPS-6 was replaced with the SPS-37 (also from Westinghouse) and the SPS-12 was replaced with the SPS-10 from [[Raytheon]]. With this equipment, planes could be detected at over {{convert|250|mi|km}} away.

The ''Baltimore'' class was equipped from the start with electronic and electromechanical [[fire control system]]s to determine the fire parameters by which targets over the [[horizon]] could be hit. The main guns were controlled by a Mark 34 fire control system connected to an Mk 8 radar. The 5-inch/38 dual-purpose guns were guided by two [[Mark 37 Gun Fire Control System|Mk 37 systems]] with Mk 4 radar. Later, the fire control radars were replaced along with the main radar systems. The fire control systems remained the same except that the new 3-inch guns were upgraded to Mk 56 with Mk 35 radars.