Common Digitizer (FYQ-47) Radio Frequency Interference Measurements at the Elwood, New Jersey, Long Range Radar Site.

Abstract

Operating Long Range Radar Sites (LRRS) have reported that the Common Digitizer (CD) interferes with the Back-Up Emergency Communications (BUEC) equipments when the CD doors are OPENED for maintenance purposes. This problem was investigated. The investigation consisted of making Radio Frequency Interference (RFI) field strength measurements at various locations, both inside and outside the LRRS building as well as on the roof and radome catwalk. The measurements were made for various combinations of equipments being on with the CD doors both OPENED and CLOSED. It was determined that the CD with doors OPEN is the major source of RFI. The radiating source within the CD was traced to its core memory. With the CD doors CLOSED, RFI is reduced to negligible levels; furthermore, the roof of the building reduces the CD RFI to negligible proportions. (Modified author abstract)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1973
Accession Number
AD0767965

Entities

People

  • George C. Apostolakis
  • John J. Fisher Jr

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Analog To Digital Converters
  • Emergencies
  • Frequency
  • Maintenance
  • Measurement
  • New Jersey
  • Radio Frequency
  • Radio Frequency Interference

Readers

  • Aerospace Test and Evaluation
  • Electrical Engineering
  • Nuclear Civil Defense.