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Theory of Instrument Landing Systems (ILS)Course 40283

DESCRIPTION

This 18-day course provides training for technicians and engineers on instrument landing systems (ILS) equipment. The course is 75% lecture and 25% laboratory. Subjects include modulation principles; power in AM signals; ILS wave-forms; space modulation; DDM/SDM; basic antenna pairs; SIP/SOP and image antennas; glideslope and V-ring antenna patterns; GS DDM and monitoring; proximity error/offset; abnormal height ratios; V-ring RF distribution and antenna currents; Localizer monitor; log periodic directional array; flight inspection; system analysis; portable ILS receiver; radiation patterns; RF and LOC RF phasing and ground check, LOC power distribution, and V-ring monitor circuits.

OBJECTIVES

At the conclusion of the course, participants will be able to:
  • Identify the concepts and applications of the Null Reference Category I Localizer, Glideslope, and Marker systems maintained by the FAA.
  • Apply the concepts and basic principles of Amplitude Modulation, ILS Waveforms, Space Modulation, Relative RF Phase, and Differences in Depths of Modulation.
  • Apply the concepts and basic principles of Basic Antennas, General Antenna Pairs with Equal or Unequal Phases or Currents, Specific Antenna Pairs, Multiple Antenna Pairs, and Image Antennas.
  • Apply the concepts and basic principles of the Glideslope Antenna Array, Glideslope DDM and Path Width, Proximity Effect, Glideslope Monitoring, and Glideslope Antenna Height Ratios.
  • Apply the concepts and basic principles of Localizer Radiation Patterns, V-Ring Antennas and Distribution Unit, Localizer Monitoring, the Log-Periodic Antenna System, and Flight Inspection Procedures.

WHO SHOULD ATTEND

This course provides training for electronic technicians and engineers progressing into technical positions having responsibility for operating, maintaining, and certifying/verifying normal operation of Instrument Landing Systems.

Prerequisites: Basic Electronics, 44715 ILS Basic Theory

COURSE OUTLINE

  • Introduction to ILS
  • Modulation Principles
  • Wave Forms
  • Space Modulation
  • DDM/SDM
  • Antennas
  • Glideslope
  • Localizer

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