Accession Number:

ADA038300

Title:

Investigation of Aircraft Generated VLF Interference

Descriptive Note:

Corporate Author:

ROME AIR DEVELOPMENT CENTER GRIFFISS AFB NY

Personal Author(s):

Report Date:

1977-02-01

Pagination or Media Count:

28.0

Abstract:

Reception distances of VLFLF transmissions, on board the KC-135 aircraft, have been severely restricted by electromagnetic interference generated by the aircrafts equipment. This interference has prevented the accurate measurement of propagation data at distances greater than 1000 miles when using the aircrafts omnidirectional antenna. With the use of a directional loop antenna mounted on the aircrafts boom, reception distances of up to 6000 miles have been attained. The restriction of directionality prevents measurements along paths which are of great importance to the MEECN. The reduction of aircraft interference for VLFLF reception is of paramount importance to the Air Force and the success of this segment of the Tri Service Propagation Program. This report describes the investigation of the VLF aircraft generated interference by RADC giving the characteristics of the noise in both the frequency and time domains.

Subject Categories:

  • Transport Aircraft
  • Radiofrequency Wave Propagation
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE