A Modulator for Noise Waveforms of High Jamming Effectiveness

Abstract

A circuit is described for producing noise modulation for use with radio countermeasure jamming transmitters. The noise produced by this circuit, though substantially unclipped, possesses a dissymmetry which aids in reducing the amount of relatively useless carrier power. Data is presented to show that jamming by unclipped noise is superior to that of clipped noise on a per-watt-of-modulator-plate-dissipation basis. A figure of merit for efficiency of modulator tubes is derived and values are given for several commercial types. Noise studies are to be made to determine the effect on jamming effectiveness of changes undergone by the modulator output waveform in the process of modulation.

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Document Details

Document Type
Technical Report
Publication Date
Sep 22, 1947
Accession Number
AD1204369

Entities

People

  • R. S. Badessa

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Countermeasures
  • Dissipation
  • Efficiency
  • Electronic Countermeasures
  • Electronic Warfare
  • Figure Of Merit
  • Information Operations
  • Military Operations
  • Modulation
  • Modulators
  • Noise Modulation
  • Radio Countermeasures
  • Transmitters

Readers

  • Electronics Engineering
  • Radar Systems Engineering.
  • Systems Analysis and Design