Accession Number : ADD001270

Title :   Multicoupler Percent Frequency Separation Calculator.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Olson,Irving C

Report Date : 02 Jul 1974

Pagination or Media Count : 4

Abstract : The patent describes a circular slide rule device for quickly and accurately determining percent frequency separation necessary between frequencies for acceptable operation in high frequency multicoupler environments. A circular base member is circumferentially graduated clockwise in three concentric, overlapping logarithmic scales which represent frequencies from 2,000 kHz to 30,000 kHz. A transparent cursor member is concentrically and rotably mounted on the base and has marked thereon percent frequency separation indicia with respect to a centerline zero percent reference. The device is easily operated and provides direct readouts of percent frequency separation at any frequency for multicoupler/transmitter/receiver combinations.

Descriptors :   *Calculators, *Patents, Frequency, Separation, Couplers, High frequency, Communication equipment, Antenna components, Coupling circuits

Subject Categories : Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE