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Page 6-28 G3X Installation Manual – Antennas
Revision A 190-01115-01
Minimum Distance from Metal Tube Structure Requirements
Figure 6-31 shows minimum distance from metal tube structure requirements for internal, non-structural
mounting of the antenna. Table 6-7 presents minimum distance requirements between the tube structure
and the antenna for cases where the antenna sits underneath the fabric in a metal-tube structure aircraft.
Figure 6-31 illustrates the tube diameter (
d) and minimum distance (l) references in the table.
Figure 6-31. Example Teardrop Footprint Antenna Mounting Under Fabric Skin
Table 6-7. Minimum Distance Required Between Tube Structure and Antenna
Illustrated Case
Tube Diameter
d (in)
Minimum Distance
l (in)
0.625 3.6
0.75 4.3
1.00 5.7
Top of antenna at or above the center of
the tube structure (Figure 6-31, top)
1.25 7.2
0.625 7.2
0.75 8.6
1.00 11.5
Top of antenna between the center and
bottom of the tube structure
(Figure 6-31, bottom)
1.25 14.3