ILS beams intended for use in one direction only are called __________(a) Single beam(b) Forward beam(c) Back beam(d) Double beamI have been asked this question in a national level competition.The origin of the question is Aviation Communication Systems in section Aviation Communication Systems of Aircraft Maintenance

ILS beams intended for use in one direction only are called __________

1.	ILS beams intended for use in one direction only are called __________(a) Single beam(b) Forward beam(c) Back beam(d) Double beamI have been asked this question in a national level competition.The origin of the question is Aviation Communication Systems in section Aviation Communication Systems of Aircraft Maintenance
Answer» Correct ANSWER is (c) Back BEAM The best explanation: ILS beams intended for use in ONE direction only are called back beams. These beams are of HELP during the approach, but the use of back beam localizer reduces PRECISION compared to normal use.

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