A-A-59003/3, COMMERCIAL ITEM DESCRIPTION: AMPLIFIER-CONTROL GROUP, AN/SIA-116 (31-MAY-1995) [SUPERSEDING MIL-B-21577/3]

A-A-59003/3, COMMERCIAL ITEM DESCRIPTION: AMPLIFIER-CONTROL GROUP, AN/SIA-116 (31-MAY-1995) [SUPERSEDING MIL-B-21577/3]., This Commercial Item Description covers the detailed requirements for an audio frequency amplifier control group type AN/SIA-116, for transmission of one-way, 1MC general announcing circuity and two way 7MC ship\'s control circuit aboard a submarine.