Large vintage circa late 1950s or early 1960s NASA telemetry encoder/decoder demonstration unit housed in two large green cases, measuring 21″ x 19″ x 11″ and 18″ x 21″ x 18″, with control/indicator panels on one side and windows displaying the internal hardware and circuitry on the other. The encoder unit features a meteoroid detector, aspect sensor, temperature sensor, and reference input on the face, with lighted indicators, and a Defense Electronics, Inc. identification plate on the reverse: "PFM Telemetry Demo Encoder Unit, Model No. PFD-11(A), Serial No. 126." The decoder unit has a reel-to-reel tape recorder on the face, with built-in digital readout, binary readout, analog meter, and audio output. The reverse bears a Defense Electronics, Inc. identification plate: "PFM Telemetry Demo Decoder Unit, Model No. PFD-11(B), Serial No. 132." Together, these devices demonstrate the conversion of received telemetry data (data that includes automated remote measurements such as spacecraft health) to a machine/automated readable format. In overall very good to fine condition, with wear to the exterior of the cases.
We use cookies on this site to improve your experience. By using this site, you accept our use of cookies. To learn more, please see our Privacy Policy.
