Hga-6000 Installation Guidelines; Mechanical Fixing; Antenna Alignment; Figure 7 : Hga-6000 Alignment Marking From The Base Of Antenna - COBHAM HGA-6000 Installation Manual

High gain antenna
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HGA-6000 High Gain Antenna
Installation Manual

4.2 HGA-6000 Installation Guidelines

4.2.1 Mechanical Fixing

1)
The installation mounting plate or structure must provide a flat platform for the HGA-6000.
2)
The HGA-6000 is fixed to the mounting plate/structure by means of four ¼ inch 28UNF screws
which screw into the base of the antenna from below. A locking wire thread insert in each of
the four mounting holes will ensure that the screws remain secure.
specifications are provided in Section 3.2.1, as well as in Figure 7.
Choose correct screw length to ensure engagement with the locking coil of the insert, that is
minimum engagement = 1/4"
3)
Provision may be required to accommodate the four screw heads on the aircraft's mounting
structure.

4.2.2 Antenna Alignment

4.2.2.1 Antenna Markings
The base of the antenna is marked with a letter "A", as indicated by the arrow below. There are
two notches on the side of the baseplate that corresponds with the "A". These notches can be used
to determine where the "A" is if the antennas has already been installed. Take note of the B, C and
D sides of the antenna, as these will be used to set the installation angles of the antenna as
described in 4.2.2.2.
B
(RF Cable side)

Figure 7 : HGA-6000 Alignment marking from the base of antenna

Document: 862-A0059_IM issue 1.7
A
(Two notches on this side)
C
(Data and Power Cable side)
The mounting hole
D
(No cables)
COMPANY CONFIDENTIAL
Page 20 of 37

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