Installation Instructions

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2 Localizer Antenna System Assembly
2.1 Positioning of antenna frame work
By means of a theodolite determine the exact position of the extended runway centre line and
mark the 90 degrees angle points on each concrete slab. See Figure 2-1.
Figure 2-1 Alignment of antenna frame work.
2.2 Framework assembly
See Vol. 2 Section 2 Chapter 6.
See also Figure 2-1
On middle aluminium bar mark exact centre. Position the bar accurately so the marks line up
with the extended centre line. Affix the two clamping angles.The remaining aluminium bars of
the front part can now be assembled across the concrete fundaments. Use junction plates
between each bar. On each fundament (left and right) adjust to the same distance between
the theodolite mark and the aluminium bar.
The al. Bars are numbered at each end on top side. The center bar is marked 1-1 and the next
bar on each side is marked 1-2. The third bar on each side is marked 2-3 and so on.
Figure 2-2
22 11 11 22 3