HEMP (High-Altitude Electromagnetic Pulse) Validation of FAA (Federal Aviation Administration) Radio Facility

Abstract

The Harry Diamond Lab. provided high-altitude electromagnetic pulse (HEMP) and partial lightning hardness verification testing to a high-frequency radio facility for the FAA. The facility consisted of a shielded enclosure with antennas and cables connected through protective devices at the shield to dummy loads within the shield. It was exposed to low-level radiation with measurements of internal fields extrapolated to threat levels and compared to specific criteria. Each typical penetration was injected with a simulated lightning source, and internal measurements were compared to specific criteria. Although criteria were not always met, it was judged with confidence that the facility would protect radio equipment. It was noted that the ac power spark gap would remain shorted until ac power shut down, resulting in system upset. Keywords: Electromagnetic shielding; Shield enclosure; HEMP test; Lightning test; HF radio.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1989
Accession Number
ADA209187

Entities

People

  • Stephen C. Sanders

Organizations

  • Harry Diamond Laboratories

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Altitude
  • Classification
  • Electromagnetic Pulses
  • Electromagnetic Radiation
  • Electromagnetic Shielding
  • Engineering
  • Frequency
  • High Altitude
  • Measurement
  • Radiation
  • Radio Equipment
  • Research Facilities
  • Rings
  • Security
  • Spark Gaps
  • Systems Engineering
  • Test Facilities

Fields of Study

  • Physics

Readers

  • Atmospheric Science/Meteorology
  • Explosive Engineering.
  • Optical Fiber Sensing and Electromagnetic Propagation.