	AN/SQS-53 is an improved version of AN/SQS-26CX and the main difference between the SQS-26CX and SQS-53 sonars is the digital computer interface with the Mk 116 anti-submarine warfare (ASW) weapon control system in the latter. In addition, AN/SQS-53 sonar can also be fitted with the Kingfisher small obstacle (mines) avoidance sonar. Specification: