HGA-7001
Installation Manual
Document: 862-A0089_IM issue 1.6
COMPANY CONFIDENTIAL
Page 29 of 45
(d)
Grounding via the recessed grounding screw holes shown in Figure 11.
1)
The thread is #8-32 UNC, with 7 mm (0.27”) full depth.
(e)
Grounding of the mounting/adaptor plate to the fuselage via earth straps.
Figure 11: Grounding Screw Holes, Ground Stud and Bonding Points
5.7
Passive Intermodulation (PIM)
The following guidelines should be followed to ensure that the installed system is PIM free and
complies with SwiftBroadband requirements.
(1)
Only use cabling as recommended in ARINC 781, with special emphasis on PIM specifications.
(2)
Any earth cable used should preferably be insulated; otherwise it should be prevented from
moving freely against any other metal surfaces.
(3)
Ensure that all connectors are clean and free from any dust or foreign matter before
connecting them to the system.
(4)
The environment in which the installation work is performed must be clean and free from any
dust or foreign matter.
(5)
All connections (specifically the RF) need to be torqued to the applicable manufacturer’s
specification for best PIM performance. Refer to supplier for recommendations on PIM free
cables and connectors.
Summary of Contents for 677-A0173
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