Reception distances of VLF/LF transmissions, on board the KC-135 aircraft, have been severely restricted by electromagnetic interference generated by the aircraft's equipment. This interference has prevented the accurate measurement of propagation data at distances greater than 1000 miles when using the aircraft's omnidirectional antenna. With the use of a directional loop antenna mounted on the aircraft's 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 VLF/LF 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. (Author)
Investigation of Aircraft Generated VLF Interference
1977
27 pages
Report
Keine Angabe
Englisch
Common Carrier & Satellite , Radiofrequency Waves , Radiofrequency interference , Radio reception , Electromagnetic interference , Very low frequency , Low frequency , Tanker planes , Cargo aircraft , Radio transmission , Range(Distance) , Communication and radio systems , Emergencies , KC-135 aircraft , Aircraft interference