Test of Ferris Model 32A Interference Locator and Field Strength Meter

Abstract

Tests were conducted to determine the sensitivity of the subject equipment as an interference locator, audio level in headphones and portability. Tests were also conducted to determine the precision of repeatability, accuracy of calibration, selectivity, constancy of the effective height of the one-half meter vertical signal collector and the effect on the calibration by deviation in "A" and "B" battery voltages when the equipment is used as a voltmeter. Wherever possible, comparative tests were made against the Model 44A Western Electric field intensity measuring equipment as well as on the Model OC test set.

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Document Details

Document Type
Technical Report
Publication Date
Nov 21, 1938
Accession Number
AD1156008

Entities

People

  • Ward E. Bower

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Calibration
  • Consistency
  • Earphones
  • Electric Fields
  • Errors
  • Frequency
  • Generators
  • Intensity
  • M Band
  • Materials
  • Measurement
  • Precision
  • Signal Generators
  • Test Equipment
  • Test Sets
  • Voltage

Readers

  • Regression Analysis.
  • Unmanned Aerial System (UAS) Autonomous Capabilities and Mission Reconnaissance.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.