Accession Number : AD0689169

Title :   UNATTENDED CONTROLLER FOR A FREQUENCY SYNTHESIZER,

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) RADIO AND ELECTRICAL ENGINEERING DIV

Personal Author(s) : Cairns,F. V. ; Shepertycki,T. H.

Report Date : 18 SEP 1968

Pagination or Media Count : 3

Abstract : An electronic controller, made of integrated circuits and inexpensive silicon controlled rectifiers, was designed as a coupler or interface between a card reader and a frequency synthesizer to permit sequential selection of one of the 5x10 to the ninth power frequencies available from the frequency synthesizer. Because it was designed for unattended operation under clock control, a lamp display for monitoring was included and effects of impulsive interference were investigated. (Author)

Descriptors :   (*FREQUENCY SYNTHESIZERS, CONTROL SYSTEMS), INTEGRATED CIRCUITS, SILICON CONTROLLED RECTIFIERS, INTERFACES, PUNCHED CARDS, CANADA

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE