Distance Measuring Equipment Jet Threshold 
Pilot Institute
JUNE 19, 2025
On runways used by international commercial flights, a threshold must be present (we’ll look into that later in this article). Visual runways feature aiming point markings (described later on in this article) if the runway is 4,000ft or longer or used by jet aircraft. A runway threshold identifies the beginning of a runway.
Pilot Institute
SEPTEMBER 24, 2024
The aerials are in a position that provides a threshold crossing height of 50ft. It consists of lights that start at the landing threshold and extend into the approach area. Marker Beacons These days, the ILS is generally paired with a DME (Distance Measuring Equipment). This helps the pilots verify the glideslope.
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