Garmin G3X Installation Manual page 80

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 6-8 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 (
Figure 6-31. Example Teardrop Footprint Antenna Mounting Under Fabric Skin
Table 6-8. Minimum Distance Required Between Tube Structure and Antenna
Illustrated Case
Top of antenna at or above the center of
the tube structure (Figure 6-31, top)
Top of antenna between the center and
bottom of the tube structure
(Figure 6-31, bottom)
Page 6-30
Revision E
) and minimum distance (
d
Tube Diameter
d (in)
0.625
0.75
1.00
1.25
0.625
0.75
1.00
1.25
) references in the table.
l
Minimum Distance
l (in)
3.6
4.3
5.7
7.2
7.2
8.6
11.5
14.3
G3X Installation Manual – Antennas
190-01115-01