Renseignements généraux

Nº de série

FETA 14

Nº de partie

1

Nombre total de parties

1

Ou

S/O

Brevets

S/O

Description générale

Metal casing and screws; synthetic inserts in connection ports

Dimensions

Remarque : Cette information reflète la taille générale pour l’entreposage et ne représente pas nécessairement les véritables dimensions de l’objet.

Longueur

12,6 cm

Largeur

5,2 cm

Hauteur

5,5 cm

Épaisseur

S/O

Poids

S/O

Diamètre

S/O

Volume

S/O

Lexique

Groupe

Technologie de l'espace

Catégorie

Communications

Sous-catégorie

S/O

Fabricant

Ou

Communications CA

Pays

Canada

État/province

Ontario

Ville

Ottawa

Contexte

Pays

Inconnu

État/province

Inconnu

Période

c. 1973-74

Canada

In October 1973, CRC and RCA agree to build a 12GHz field effect transistor amplifier for use on the transponder of Hermes, the first Direct Broadcast TV satellite in the world, launched in 1976. (Taken from worksheet)

Fonction

The development of an amplifier using Fairchild and Plessey GaAs FET technology for use in the transponder of Hermes. FETA powers the main amplifier which broadcasts the signal on Hermes. (Taken from worksheet)

Technique

Designed and built at CRC, FETA technology represents the first GaAs FETs ever flown in space. Invented in the late 1960's, gallium arsenide (GaAs) FETs are high performance field effect transistors mainly used for high performance microwave applications. Relatively new in 1973, this new and cutting edge GaAs GET Amplifier technology was chosen for its benefits in areas of weight, efficiency, linearality, and reliability over the current tunnel-diode, travelling-wave, or transferred-electron amps available at the time. The FETA design team at CRC moved forward to develop two FET Amps, one of each from the only two manufacturers of FETs of the period. Series "0" used Fairchild GETs while series "1" used Plessey FETs. Four of each amplifier models were built (prototype, engineering, flight, and spare). Together with FETA 04-Fairchild (CSTM 1985.0408), the acquisition of FETA 14-Plessey completes the FETA development used on Hermes. According to Douville, Hermes was used to define the transponder for the Anik-C series of satellites for Telesat Canada. (Taken from worksheet)

Notes sur la région

Inconnu

Détails

Marques

On top: on a connector: "ENDIX/ 043530/ 031-44/ 86-545"/ On gold part of casing: "OUT/ SHF GET AMP/ SER. NO. FETA 14/ CRC-CTS SS01-12/ IN"

Manque

Appears complete

Fini

Black and gold-coloured finish on metal body

Décoration

S/O