Methods of predicting disturbance for receivers due to information technology equipment

Author

Tominaga, Tetsuja ; Shinohara, Shoko ; Kuwabara, Hohuo

Author_Institution

NTT Tech. Assistance & Support Center, Tokyo, Japan

fYear

195

fDate

14-18 Aug 195

Firstpage

522

Lastpage

527

Abstract

A method has been developed for predicting disturbances in TV signal reception in order to reduce interference caused by unwanted emissions from information technology equipment (ITE). The prediction parameters were determined by measuring the disturbance levels from ITE at an open test site, propagation characteristics of unwanted emissions from ITE in a building, the output power of the TV transmitting station, the propagation characteristics of the TV radio wave, and the TV receiving antenna directivity. The results show that disturbances can still appear even if the equipment satisfies the Class A limits recommended by the CISPR

Keywords

directive antennas; electromagnetic compatibility; interference suppression; radiowave propagation; receiving antennas; television antennas; television interference; television receivers; television reception; CISPR; Class A limits; TV radio wave; TV receiving antenna directivity; TV signal reception; TV transmitting station; disturbance prediction; information technology equipment; interference; open test site; output power; propagation characteristics; receivers; unwanted emissions; Antenna measurements; Antennas and propagation; Circuits; Costs; Directive antennas; Information technology; Interference; Receiving antennas; TV; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 1995. Symposium Record., 1995 IEEE International Symposium on

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-3608-9

Type

conf

DOI

10.1109/ISEMC.1995.523613

Filename

523613