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

2019年1月29日 · The KY-028 Digital Temperature Sensor measures temperature changes based on thermistor resistance. This module has both digital and analog outputs, there’s a potentiometer to adjust the detection threshold on the digital interface. Compatible with Arduino, Raspberry Pi, ESP32, and other microcontrollers.

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.

The KY-28 can either cipher outgoing voice transmissions or decipher received voice transmissions; however, these functions cannot be performed simultaneously. The crew can choose between plain or cipher mode of operation.

KY-028 Temperature sensor (thermistor) This module contains an NTC thermistor which can measure temperatures in the range of -55°C up to +125°C.

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 the KY-38 was the portable or man-pack model.

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.

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.

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.