NESTOR consists of three systems. The KY-8 was used in vehicular and afloat applications; the KY-28 was the airborne version; and the KY-38 was the portable or man-pack model. About 30,000 NESTOR equipments were produced prior to their replacement by the VINSON secure voice family. [1]: Vol I, p.79

A KYK-13 fill device. A fill device or key loader is a module used to load cryptographic keys into electronic encryption machines. Fill devices are usually hand held and electronic ones are battery operated. Older mechanical encryption systems, such as rotor machines, were keyed by setting the positions of wheels and plugs from a printed keying ...

The KY-28 was an analog, voice encryption device based on transistor circuitry and was the shipboard/airborne member of the NESTOR family of equipment. With reference to the photo, the KYK-38 (the black box on top of the KY-28) was used to input the key set.

NESTOR was a family of compatible, tactical, wideband secure voice systems developed by the U.S. National Security Agency and widely deployed during the Vietnam War. NESTOR consists of three systems. The KY-8 was used in vehicular and afloat applications; the KY-28 was the airborne version: and...

NESTOR consists of three systems. The KY-8 was used in vehicular and afloat applications; the KY-28 was the airborne version; and the KY-38 was the portable or man-pack model. About 30,000 NESTOR equipments were produced prior to …

2002年11月26日 · An example of a failed project was the KY-28, a voice radio encryptor designed during the Vietnam War for use in fighter aircraft. More than $110 million was spent to develop and field KY-28s, and over 2,200 were manufactured and installed.

1999年9月13日 · The TSEC/KY-28 voice security equipment is used with the VHF/FM radio set to provide secure two-way communications. The equipment is controlled by the control indicator mounted near the rear of the pilot right console.

The FM used KY-38 in conjunction with the KYK-28 set for mobile down to company level. The KYK-6 was used with the KYK-12 for fixed communications to the Brigade TOC. (2) During Phase IV while operating in MAI LOC the same means of communications was employed with the addition of a tactical VHF radio-carrier system from the 1-11 TOC to the Red ...

The KY-28 Speech Security System worked just as it was supposed to do. It provided a seamless interface for audio signals produced by the radio to be encrypted and decrypted for communications security. But with that being said, it was a failed project.