Accession Number : ADA114074

Title :   A Balanced Active Antenna and Impulse Noise Blanker System for the Raydist T Radio Navigation Receiver.

Descriptive Note : Technical memo.,

Corporate Author : NAVAL COASTAL SYSTEMS CENTER PANAMA CITY FL

Personal Author(s) : Ludlum,Bobby R

PDF Url : ADA114074

Report Date : Feb 1982

Pagination or Media Count : 32

Abstract : Erratic operation of Raydist T radio navigation equipment aboard mine countermeasures helicopters has been traced to fuselage-tow cable interactions with the Raydist receiving antenna and to negative-corona generated impulse noise. The development of a balanced active antenna and an impulse noise blanker which have proved successful in reducing these detrimental effects are described. The final system is described in detail and the results of laboratory tests are presented (Author).

Descriptors :   *Radio navigation, *Radio receivers, Antennas, Towing cables, Helicopters, Impulse noise, Interference, Balance, Dipole antennas, Loop antennas, Radio interference, Blanking(Electronics), High pass filters, Low pass filters, Preamplifiers, Equivalent circuits

Subject Categories : Electrical and Electronic Equipment
      Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE