The marker beacon lights up when overflying the outer or middle marker, giving the pilot an additional position information. The markers are Ultra Short Freq. Beacons and are located at the prolonged centerline of a runway at a predeterminated distance of the touch-down area. Military airports use outer, middle and inner markers, while civilian airports only use outer and middle markers. The Marker Beacon is located above the Fuel QTY Sel Panel of the center console.

	The Beacon
	Technical data to Marker Beacons
	Pictures from the Marker Beacon (Outer-, Middle- and Innermarker)

Note:
The showed panel drawing is a drawing with can be downloaded from my page Documents, plans and diagrams from the F-16.

Marker	Short	Distance	Modulation	Ident	Color
Outer Marker	OM	4,0 NM	400 Hz	- - -	Blue
Middle Marker	MM	0,6 NM	1.300 Hz	- . - . -	Yellow
Inner Marker	IM	0,1 NM	3.000 Hz	.......	White

Marker Beacon

Note:
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