scope:

This specification covers the performance and interface requirements of underwater acoustic beacons used to locate aircraft or other items underwater. The beacon is mounted on the item to be located. Acoustic beacons emit pulses of sound which are detected with underwater receiving equipment. These beacons are also commonly called "pingers". NOTE: In using this specification Test Method references (shown in TABLES IV thru VII) appear at the end of paragraphs. Metric/English Equivalents are found in TABLE VIII. TABLES and Figures follow Section 6.

All beacons under this specification have identical characteristics except as classified in Table I.

The beacon shall be identified by nomenclature assigned to a specific configuration, or by manufacturer's model number and/or manufacturer's part number. (V-22)

The beacon is tested with commercially available test equipment. The beacon, depending on its frequency, is detected by:

10KHz Platform AN/AQS-13 Sonar Helicopter AN/SSQ-41B Sonobuoy Aircraft. AN/SSQ-57 Sonobuoy Aircraft AN/UQC-1 and AN/WQC-2 Underwater telephones Ships Unspecified acoustic detection systems Ships, special purpose Commercial hand-held receiver Diver and Boat

Beneficial comments (recommendations, additions, deletions), and any pertinent data which may be of use in improving this document should be addressed to: Commanding Officer, Naval Air Engineering Center, Engineering Specifications and Standards Department (ESSD) Code 93, Lakehurst, NJ 08733, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.

37 KHz Platform AN/PQS-1 Hand held Sonar Diver AN/PQS-2 Portable Object Location Sonar Diver MK16 Receiver Diver and Boat MK72 Underwater Receiving Set Diver and Boat Unspecified acoustic detection systems Ships, special purpose Commerical hand-held receivers Diver and Boat

intended Use: