Accession Number : ADD016275

Title :   Radar Sector Blanker.

Descriptive Note : Patent, Filed 7 Jun 93, patented 15 Mar 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Hall, Roger B

Report Date : 15 Mar 1994

Pagination or Media Count : 7

Abstract : A radar sector blanker comprises in analog-to-digital converter and a sector controller unit. The analog-to-digital converter receives the analog synchro voltages describing the Positioning of a radar antenna and changes these voltages into binary-coded decimal (BCD) information. The sector controller unit comprises a portable housing, a controller system, and a power supply. The controller system includes an OFF comparator circuit, an ON comparator circuit, an S-R latch, and a solid-state switch. each comparator circuit comprises three cascaded transistor-transistor logic (TTL) integrated chips. The power supply gives a direct-current voltage to the solid-state switch and the TTL chips. The sector blanker blocks transmission for a predetermined rotational region or sector of a radar system.

Descriptors :   *RADAR JAMMING, *CHIPS(ELECTRONICS), *BLANKING(ELECTRONICS), ANALOG TO DIGITAL CONVERTERS, CIRCUITS, COMPARATORS, DIRECT CURRENT, LATCHES, POWER SUPPLIES, RADAR ANTENNAS, REGIONS, SYNCHROS, TRANSISTOR TRANSISTOR LOGIC, VOLTAGE, PATENTS

Subject Categories : Radar Countermeasures
      Electricity and Magnetism
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE