All aircraft products produced by ACK Technologies, Inc. are manufactured under FAA TSO Authorization (TSOA). Their manufacturing procedures comply with all requirements of FAR Part 21 Subpart 0.
ACK Technologies, Inc. was founded in 1972 and began manufacturing aircraft parts in January 1988. Since that time they have produced over 160,000 appliances under TSO C-88a or TSO C-91a. These appliances are in use world wide.
The ACK A30 (mod 5) Altitude encoder is a high quality addition to any transponder. Made of a diecast Aluminium chassis with gold plated connectors, and reports altitudes up to 30,750 feet.
The ACK A30 (Mod 9) Altitude encoder is a high quality addition to any transponder. Made of a diecast Aluminium chassis with gold plated connectors, and reports altitudes up to 42,000 feet with two serial outputs.