![]() When an observer faces the localizer from the approach end of the runway, the depth of modulation of the radio frequency carrier due to the 150 Hz tone must predominate on his right hand and that due to the 90 Hz tone must predominate on his left hand. The radiation field pattern must produce a course sector with one tone predominating on one side of the course and with the other tone predominating on the opposite side. The localizer station must transmit angular guidance information over a C-band microwave carrier on narrow, scanned antenna beams that are encoded to produce a modulation in space which, after averaging over several beam scans, is equivalent to the modulation used for conventional ILS as specified in subpart C of this part. (d) The radiation from the localizer antenna system must produce a composite field pattern which is pulse duration modulated, the time average equivalent to amplitude modulation by a 90 Hz and 150 Hz tone. (c) At locations where two separate ISMLS facilities serve opposite ends of of a single runway, an interlock must ensure that only the facility serving the approach direction being used will radiate. If other than a runway centerline localizer is used, the criteria in subpart C of part 97 of this chapter is applicable. (b) On runways where limited terrain prevents the localizer antennae from being positioned on the runway centerline extended, and the cost of the land fill or a tall tower antenna support is prohibitive, the localizer antenna array may be offset, including a collocated ground station, so that the course intercepts the centerline at a point determined by the amount of the angular offset and the glide path angle. (6) Be installed on frangible mounts or beyond the 1000′ light bar. (5) Not obscure any light of the approach landing system and ![]() (4) Be located at a distance from the stop end of the runway that is consistent with safe obstruction clearance practices (3) Have the minimum height necessary to comply with the coverage requirements prescribed in paragraph (j) of this section (2) Be adjusted so that the course line be on a vertical plane containing the centerline of the runway served (1) Be located on the extension of the centerline of the runway at the stop end Do not enter the center left turn lane unless it is clear of traffic.This section prescribes the performance requirements for localizer equipment components of the ISMLS.Never use the center left turn lane as an ordinary traffic lane or for passing other vehicles.You are not permitted to drive in the center left turn lane for more than 200 feet.Look at your mirror and over your right shoulder and when the traffic is clear and it is safe, enter the regular traffic lane.īelow are the rules that apply to center left turn lanes:.Look at your left and ahead, and when traffic is clear from your left side, make sure that the center left lane is also cleared, then make a left and enter the center left turn lane and wait for the traffic to clear on your right.If you are making a left turn from a side street or driveway: ![]() Watch out for oncoming traffic and when it is safe make the left turn or U-turn.When it is safe, drive inside the center left turn lane.Look over your left shoulder, and also make sure that there is no oncoming traffic inside the center left turn lane.If you need to make a left turn or U-turn where there is a center left turn lane: When making a left turn from a side street or driveway, wait on the center left turn lane until it is safe to enter the regular traffic lane.Making a left turn or a U-turn when permitted.The center left turn lane should only be used for the following traffic maneuvers: The inner lines are broken yellow, and the outer lines are solid yellow. A center left turn lane is the lane in the middle of a two-way street that is painted with double yellow lines.
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