![]() ![]() With no more than one-quarter scale deflection maintained, the aircraft will be aligned with the runway. This sensitivity permits accurate orientation to the landing runway. With this course width, a full-scale deflection shows when the aircraft is 2.5° to either side of the centerline. In addition to being much closer to the source than with a VOR, pilots need to remember that the localizer course is very narrow-normally 5°. When tracking VOR radial, each dot under represents 2° deviation from course.įor the localizer each dot under the needle represents 0.5° deviation from course. Heading adjustments must be much smaller because of the increased sensitivity of the indicator. The localizer course needle is four times as sensitive as a VOR needle. It is similar to a VOR signal except that it provides radial information for only a single course the runway heading. The LAX ILS or LOC Rwy 24 and 25 approaches start on the localizer about 40 miles from the threshold. Note that there are some exceptions to this. (b) From 10 to 35 degrees either side of the course along a radius of 10 NM. (a) To 10 degrees either side of the course along a radius of 18 NM from the antenna and The localizer provides course guidance throughout the descent path to the runway threshold from a distance of 18 NM from the antenna between an altitude of 1,000 feet above the highest terrain along the course line and 4,500 feet above the elevation of the antenna site. ) transmitted on the localizer frequency.Identification is in International Morse Code and consists of a three−letter identifier preceded by the letter I ( It is adjusted for a course width of (full scale fly−left to a full scale fly−right) of 700 feet at the runway threshold. Located near the opposite end of the landing runway. ![]() Localizer transmitter operates on one of 40 ILS channels within the frequency range of 108.10 to 111.95 MHz. (c) Visual information: approach lights, touchdown and centerline lights, runway lights Guidance Information (b) Range information: marker beacon, DME and (a) Guidance information: localizer, glide slope The ILS system may be divided functionally into three parts: ![]()
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