Hughes AN8-074P User manual

0.74 m Ka-Band Antenna
Installation Guide –
Model AN8-074P
1037749-0001
Revision F
3/26/2013
11717 Exploration Lane, Germantown, MD 20876
Phone [phone] Fax [phone]

Copyright © 2013 Hughes Network Systems, LLC
All rights reserved. This publication and its contents are proprietary to Hughes Network
Systems, LLC. No part of this publication may be reproduced in any form or by any means
without the written permission of Hughes Network Systems, LLC, 11717 Exploration Lane,
Germantown, Maryland 20876.
Hughes Network Systems, LLC has made every effort to ensure the correctness and
completeness of the material in this document. Hughes Network Systems, LLC shall not be liable
for errors contained herein. The information in this document is subject to change without
notice. Hughes Network Systems, LLC makes no warranty of any kind with regard to this
material, including, but not limited to, the implied warranties of merchantability and fitness for
a particular purpose.
Trademarks
HUGHES and Hughes Network Systems are trademarks of Hughes Network Systems, LLC. All
other trademarks are the property of their respective owners.

Contents
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Contents
Contents ................................................................................................. 3
Understanding safety alert messages .................................................... 5
Messages concerning personal injury.................................................................... 5
Messages concerning property damage................................................................ 5
Safety symbols ....................................................................................................... 6
Additional symbols ........................................................................................... 6
Antenna installation safety.................................................................................... 7
Chapter 1
Overview............................................................................................... 11
Model AN8-074P antenna description ................................................................ 12
Antenna installation summary.............................................................................13
Tasks related to antenna installation ..................................................................14
Selecting the installation site..........................................................................14
Installing the antenna mount ......................................................................... 14
Installing the IDU ............................................................................................15
Grounding....................................................................................................... 15
Approved cables .............................................................................................15
Chapter 2
Antenna parts and recommended tools ............................................... 17
Antenna kit components ..................................................................................... 17
Az/El mount assembly .................................................................................... 18
Reflector bracket and tilt plate....................................................................... 19
Antenna reflector ........................................................................................... 19
Feed support arm ...........................................................................................20
Radio assembly ...............................................................................................20
Feed horn........................................................................................................ 21
Polarizer clamps.............................................................................................. 21
Small hardware parts list ..................................................................................... 22
Tools..................................................................................................................... 23
Chapter 3
Installing the antenna and radio assembly .......................................... 25
Determining the pointing values .........................................................................25
General instructions for assembling the antenna ............................................... 26
Installing the reflector bracket and tilt plate....................................................... 27
Installing the antenna reflector ...........................................................................28
Installing the feed support arm ...........................................................................30
Installing the radio assembly ...............................................................................31
Changing transmit circular polarization (if needed).......................................33
Installing the feed horn........................................................................................ 36
Attaching the clamp........................................................................................37
Securing the feed horn ................................................................................... 39

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Contents
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Installing the antenna assembly onto the mast .................................................. 39
Chapter 4
Cabling and connections....................................................................... 41
Cabling requirements ..........................................................................................41
Routing the cables at the antenna.......................................................................42
Routing the transmit cable .............................................................................43
Routing the receive cable ...............................................................................43
Connecting the transmit and receive cables ....................................................... 44
Connecting the transmit cable .......................................................................44
Connecting the receive cable ......................................................................... 45
Ground connection .............................................................................................. 45
Pointing................................................................................................................ 45
Chapter 5
Adjusting antenna azimuth and elevation ........................................... 47
Adjusting elevation ..............................................................................................48
Adjusting azimuth ................................................................................................50
Checking the azimuth base starting position .................................................51
Coarse azimuth adjustment............................................................................ 52
Fine azimuth adjustment................................................................................52
Final steps ............................................................................................................53
Remove the pointing tool...............................................................................53
Weatherproof the cable connections............................................................. 53
Check for safety labels and signs....................................................................54
Acronyms and abbreviations ................................................................ 55
Index .................................................................................................... 57

Understanding safety alert messages
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Understanding safety alert messages
Safety alert messages call attention to potential safety hazards and tell you how to
avoid them. These messages are identified by the signal words DANGER, WARNING,
CAUTION, or NOTICE, as illustrated below. To avoid possible property damage,
personal injury, or in some cases possible death, read and comply with all safety
alert messages.
Messages concerning personal injury
The signal words DANGER, WARNING, and CAUTION indicate hazards that could
result in personal injury or in some cases death, as explained below. Each of these
signal words indicates the severity of the potential hazard.
DANGER indicates a potentially hazardous situation which, if not avoided, will result
in death or serious injury.
WARNING indicates a potentially hazardous situation which, if not avoided, could
result in death or serious injury.
CAUTION indicates a potentially hazardous situation which, if not avoided, could
result in minor or moderate injury.
Messages concerning property damage
A NOTICE concerns property damage only.
NOTICE is used for advisory messages concerning possible property damage, product
damage or malfunction, data loss, or other unwanted results –but not personal
injury.

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Understanding safety alert messages
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Safety symbols
The generic safety alert symbol
calls attention to a potential personal injury hazard. It appears next to the DANGER,
WARNING, and CAUTION signal words as part of the signal word label. Other
symbols may appear next to DANGER, WARNING, or CAUTION to indicate a specific
type of hazard (for example, fire or electric shock). If other hazard symbols are used
in this document they are identified in this section.
Additional symbols
This document uses the following hazard symbols:
Indicates a safety message that concerns a potential electric
shock hazard.
Indicates a safety message that concerns a potentially
hazardous situation in which you could fall.
Indicates a safety message that concerns radio frequency
(RF) energy.

Understanding safety alert messages
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Antenna installation safety
Observe the following precautions when installing the satellite antenna. This
manual also includes other safety alerts where appropriate concerning specific
installation procedures.
Only Hughes‐certified installers may install or service Hughes antennas and their
components. Installers must expressly acknowledge the Hughes requirements for
Hughes installations.
If you work on a roof, tower, or other high structure or use a ladder or scaffold to
access the work site, follow these precautions to prevent personal injury or death:
Walk only on sound roof structures.
Make sure the antenna assembly and installation surface are structurally sound
so that they can support all loads (equipment weight, ice, and wind).
Use safety equipment (for example, a lifeline) appropriate for the work location.
Follow all manufacturer safety precautions for all safety and other equipment
used.
Perform as many procedures as possible on the ground.
To avoid electric shock, stay at least 20 ft from power lines.
If any part of the antenna or mount assembly comes in contact with a power line,
call the local power company to remove it. Do not try to remove it yourself.
For pole mount installations, be sure to obtain information regarding
underground utilities in the proposed location before digging.
Properly ground the antenna assembly in accordance with all local and national
electrical codes.

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Understanding safety alert messages
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Do not work in high wind or rain; or if a storm, lightning, or other adverse
weather conditions are either present or approaching.
Do not attempt to assemble, move, or mount the antenna on a windy day. Even
a slight wind can unexpectedly create sudden strong forces on the antenna
surface.
If the antenna or mount assembly begins to fall during the installation, do not
attempt to catch it. Move away and let it fall.
Antennas that have been improperly installed or attached to an unstable structure
are susceptible to wind damage, which can be very serious or even life threatening.
The product owner and installer assume full responsibility that the installation is
structurally sound to support all loads (weight, wind, and ice) and is properly sealed
against leaks.

Understanding safety alert messages
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Observe these precautions to avoid exposure to RF radiation, a potential safety
hazard:
The antenna must be installed in a location not readily accessible to children and
in a manner that prevents human exposure to potentially harmful levels of
radiation.
Antennas mounted in Puerto Rico, the continental United States, or at any site
with a greater than 30° elevation angle must be installed such that the lower lip
of the antenna reflector is at least 5 ft above any surface upon which a person
might be expected to stand, and 3 ft 3 inches from any opening (such as a door
or window) in a building or adjacent structure.
Antennas mounted in Canada, Alaska, Hawaii, or any site with a less than 30°
elevation must be installed such that the lower lip of the antenna reflector is at
least 5 ft 9 inches above any surface upon which a person might be expected to
stand, and 3 ft 3 inches from any opening (such as a door or window) in a
building or adjacent structure.
The antenna must be mounted such that no object that could reasonably be
expected to support a person is within 6 ft 7 inches of the edges of a cylindrical
space projecting outward from the antenna reflector toward the satellite.
If the above distance requirements cannot be met, the antenna must be
mounted in a controlled area inaccessible to the general public, such as a fenced
enclosure or a roof.
A fenced installation must have a locked entry, and the fenced area must be
large enough to protect the general public from exposure to potentially harmful
levels of radiation.
Access to a roof installation in a commercial, industrial, or institutional
environment must be limited by a door or a permanently fastened ladder that is
locked to deny access to the general public.
Once the transmitter becomes operational, maintain a safe distance; at least 3
feet.
Failure to observe these cautions could result in injury to eyes or other personal
injury.

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Understanding safety alert messages
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Observe these precautions to avoid exposure to RF radiation, a potential safety
hazard:
All antennas of any type or size must carry an industry standard and government
approved Radiation Hazard Caution label on the feed support arm.
A fenced or roof installation in a commercial, industrial, or institutional
environment must carry a Radiation Hazard Caution sign on the access door,
gate, or permanently mounted access ladder within plain sight of anyone
approaching the antenna from the front or sides of the reflector.
Failure to observe these cautions could result in injury to eyes or other personal
injury.
Note: Some installations may require additional precautions. See the HughesNet
System Antenna Site Preparation and Mount Installation Guide (1035678‐
0001) for more information.