Related Manuals for Hughes HughesNet AN8-074R
Summary of Contents for Hughes HughesNet AN8-074R
- Page 1 .74m Ka-Band Antenna Installation Guide Model: AN8-074R 1037751-0001 Revision A June 9, 2008...
- Page 2 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.
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Page 3: Important Safety Information
Important safety information For your safety and protection, read this entire installation guide before attempting to install the AN8-074R Ka-band antenna. In particular, read this safety section carefully. Keep this safety information where you can refer to it if necessary. Types of warnings used This section introduces the various types of warnings used in this manual to alert you to possible safety hazards. -
Page 4: Product Warning Labels
Product warning labels The following safety alert labels are affixed to the antenna feed support arms, radio transmitter, and antenna reflector, respectively. Feed support arms Transmitter Reflector (back side) Safety alert labels on the antenna assembly These labels advise that the antenna emits radio frequency (RF) energy. -
Page 5: Antenna Installation Safety
Ka-band satellite antenna. This manual also includes other safety safety alerts where appropriate, concerning specific installation procedures. WARNING Only Hughes-certified installers may install or service Hughes antennas and their components. Installers must expressly acknowledge the Hughes requirements for Hughes installations. DANGER... - Page 6 WARNING • 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.
- Page 7 CAUTION 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.
- Page 8 CAUTION • 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...
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Page 9: Table Of Contents
Contents Important safety information ..... iii Types of warnings used in this manual ....iii Product warning labels . - Page 10 Installing the feed horn....... .24 Installing the antenna assembly onto the mast pipe ..26 Chapter 4 Cabling and connections .
- Page 11 Figures Chapter 1 1. The Hughes model AN8-074R .74m satellite antenna .....2 Chapter 2 2. Antenna kit components ..........8 3.
- Page 12 Chapter 5 28. Adjusting the elevation ..........36 29.
- Page 13 Tables Chapter 2 1. Small hardware parts ..........13 2.
- Page 14 • Tables 1037751-0001 Revision A...
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Page 15: Overview
Chapter 1 Overview This Installation Guide explains how to assemble and install the Hughes AN8-074R .74m Ka-band antenna. It is written for qualified installers who are familiar with satellite antenna installation practices and are capable of properly applying the information presented herein. -
Page 16: Antenna Installation Summary
Figure 1: The Hughes model AN8-074R .74m satellite antenna Antenna installation This section lists the basic steps and related tasks used to assemble and install the antenna. These procedures are listed in summary the order in which they are to be performed. For more detailed information on each task, refer to the chapters and documents listed. - Page 17 5. Determine the most suitable method for mounting the antenna and install the antenna mast. See the HughesNet Antenna Site Preparation and Mount Installation Guide for details. Note: It is critical that the antenna mast is plumb. The antenna cannot be adjusted to correct for a mast that is not plumb.
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Page 18: Tasks Related To Antenna Installation
Tasks related to antenna This section explains where to find information on tasks related to antenna installation. installation Selecting the The first and most important consideration when choosing a prospective antenna site is whether the area can provide an installation site acceptable line of sight (LOS) to the satellite. -
Page 19: Installing The Satellite Modem
Cabling information For a list of approved cables for the IFL between the antenna and the satellite modem, see the Hughes FSB, IFL Cable, Approved List (with lengths) for SPACEWAY Domestic Installations (FSB 080111_01). The FSB lists the maximum cable length for each approved cable type for all relevant radio types. - Page 20 Chapter 1 • Overview 1037751-0001 Revision A...
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Page 21: Antenna Parts And Required Tools
Chapter 2 Antenna parts and required tools This chapter describes the components and parts provided with the AN8-074R Ka-band antenna kit. It contains the following sections: • Antenna kit components on page 7 • Small hardware parts list on page 13 •... -
Page 22: Antenna Kit Components
Figure 2: Antenna kit components Note: The radio assembly is shipped separately and may not arrive at the same time as the other two cartons. The main components of the antenna kit are: • Az/El mount-reflector bracket assembly • Feed support arms and tailpiece •... -
Page 23: Az/El Mount-Reflector Bracket Assembly
Az/El mount-reflector The Az/El mount-reflector bracket assembly shown in Figure 3 is shipped from the factory pre-assembled. It attaches to the back of bracket assembly the antenna reflector, securing it to the rest of the assembly. The Az/El mount consists of the Az/El canister, the elevation scale, and the fine azimuth and elevation tools. -
Page 24: Antenna Reflector
Antenna reflector The antenna reflector shown in Figure 4 focuses the transmitted and received RF signals. It attaches to the reflector bracket. Figure 4: Antenna reflector CAUTION To avoid damage to the antenna reflector, handle it with care. Feed support arms Figure 5 shows the two feed support arms and the tailpiece. -
Page 25: Radio Assembly
Figure 5: Feed support arms and tailpiece Radio assembly The radio assembly shown in Figure 6 consists of the radio transmitter, low noise block converter (LNB), transmit/receive isolation assembly (TRIA), and polarizing waveguide. Figure 6: Radio assembly Chapter 2 • Antenna parts and required tools 1037751-0001 Revision A... -
Page 26: Feed Horn
Feed horn The feed horn, shown in Figure 7, attaches to the polarizer on the radio assembly. The feed horn gathers the reflected signal from the reflector and focuses it toward the LNB. Figure 7: Feed horn and collar Related Components Tri-mast (or other Although the tri-mast is not part of the antenna kit, it is described antenna mount) -
Page 27: Small Hardware Parts List
Small hardware Table 1 lists the small hardware parts included in the antenna kit. parts list Table 1: Small hardware parts Listed parts are Illustration showing Part Quantity used to attach . . . where parts are used Parts shipped in bag 1500823-0019 5/16-inch x 1-inch carriage bolts Tilt plate and reflector bracket Figure 11 on page 19... -
Page 28: Tools
Tools Table 2 lists the tools required to assemble and install the antenna. Table 2: Tools and additional materials required to assemble and install the antenna Tool or material Details Socket wrench, ½-inch For 5/16-inch bolts. 2 open-end wrenches, For 5/16-inch bolts. Two of the Az/El ½-inch canister nuts are not accessible with a socket wrench and therefore require the... -
Page 29: Installing The Antenna And Radio Assembly
Chapter 3 Installing the antenna and radio assembly This chapter explains how to assemble and install the antenna, radio assembly, and associated hardware. Topics in this chapter include: • Determining the pointing values on page 15 • General instructions for assembling the antenna on page 16 •... -
Page 30: General Instructions For Assembling The Antenna
General instructions for Before you assemble the antenna, read these important instructions: assembling the antenna • Mast – The mast must be installed before you can install the antenna. For information on installing the antenna mast, see the HughesNet Antenna Site Preparation and Mount Installation Guide (1035678-0001). -
Page 31: Installing The Feed Support Arms And Tailpiece
Installing the Begin the antenna assembly by attaching the two feed support arms to the Az/El mount-reflector bracket assembly. This is a feed support arms two-step process. First, you must connect the two feed support and tailpiece arms to the assembly; then you will connect the tailpiece (sometimes referred to as the “beaver tail”) to the ends of the feed support arms. -
Page 32: Installing The Antenna Reflector
3. Attach the tailpiece to the free ends of the two feed support arms as shown in Figure 10, using four -inch x -inch 5/16 self-tapping bolts, flat washers, lock washers, and nuts. Figure 10: Attaching the tailpiece Installing the antenna To attach the antenna reflector to the reflector bracket: reflector 1. - Page 33 2. Line up the remaining holes in the reflector with the holes in the reflector bracket and insert the remaining four carriage bolts into the holes in the reflector and through the corresponding holes in the bracket as shown in the figure. Figure 12: Attaching the antenna reflector (rear view) 3.
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Page 34: Installing The Radio Assembly
Installing the To mount the radio assembly to the tailpiece: radio assembly 1. Position the radio assembly above the tailpiece so that the waveguide end of the radio is nearest to the reflector, as shown in Figure 13. Figure 13: Positioning the radio -inch ×... -
Page 35: Adjusting Transmit Circular Polarization
Figure 14: Attaching the radio assembly to the tailpiece Adjusting transmit It may be necessary for you to reposition the polarizer waveguide on the radio assembly to set the proper polarization between the circular polarization radio transmitter and the antenna reflector. Before proceeding with the installation, check the installation reference sheet to determine whether the installation calls for left-hand circular polarization (LHCP) or right-hand circular polarization (RHCP). -
Page 36: Determining The Polarization Setting
Figure 15: Determining the polarization setting To reposition the polarizer: 1. Remove the two-piece polarizer collar by loosening and removing the two Allen screws. 2. Separate the polarizer from the TRIA and rotate it one quarter turn (clockwise for LHCP and counter-clockwise for RHCP), until the appropriate notch lines up with the key on the end of the TRIA. - Page 37 adjacent to the L on the polarizer and the RHCP notch is adjacent to the R on the polarizer). Figure 16: Adjusting circular polarization (collar removed) 3. Reseat the waveguide with the TRIA and reassemble the collar. When properly installed, both halves of the collar should join along the ridges on opposite sides of the waveguide as shown in Figure 17.
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Page 38: Installing The Feed Horn
Installing the feed horn To attach the feed horn to the radio assembly: 1. Remove and discard the protective seal from the polarizer on the radio assembly (shown in Figure 18). Figure 18: Remove the protective seal from the polarizer 2. -
Page 39: Attaching The Feed Horn
Figure 19: Attaching the feed horn 5. Insert and tighten two Allen screws into the collar to secure the feed horn in place. Tighten the screws to 8 ft-lbs. 6. At this point, fully tighten any hardware that is not tight— however, leave nuts that are used for pointing adjustments slightly loose or just snug. -
Page 40: Installing The Antenna Assembly Onto The Mast Pipe
Installing the Follow these steps to install the assembled antenna assembly onto the mast pipe: antenna assembly onto the mast pipe 1. Before you install the az/el mount assembly onto the mast pipe, use a bubble level to verify that the mast is plumb. The mast must be plumb before you install the assembly. -
Page 41: Installing The Antenna Assembly Onto The Mast
Figure 21: Installing the antenna assembly onto the mast Note: For vertical mounts, fill all holes with weather-grade silicon sealer before inserting bolts or screws. For horizontal mounts, fill all holes with the appropriate asphalt-based, synthetic-rubber, or acrylic co-polymer roof sealant This completes the assembly phase of the antenna installation process. - Page 42 Figure 22: Assembled antenna To proceed with the installation, you must route the IFL Tx and Rx cables between the antenna and the satellite modem. See Chapter 4 – Cabling and connections. Chapter 3 • Installing the antenna and radio assembly 1037751-0001 Revision A...
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Page 43: Cabling And Connections
Cabling requirements For a list of approved cables for the intra-facility link (IFL) between the antenna and the satellite modem, see the Hughes FSB, IFL Cable, Approved List (with lengths) for SPACEWAY Domestic Installations, (FSB 123107). The FSB lists the maximum cable length for each approved cable type, for all relevant radio types. -
Page 44: Routing The Cables At The Antenna
Routing the cables at Route the coaxial Tx and Rx cables at the antenna as follows: the antenna 1. Route the Tx cable (marked with blue electrical tape) over the az/el mount assembly, down behind the reflector, and along the feed support arms to the rear of the transmitter, in a configuration similar to that shown in Figure 23. -
Page 45: Connecting The Transmit And Receive Cables
4. Route the Rx cable (marked with red electrical tape) over the Az/El mount assembly, down behind the reflector, and along the feed support arms to the LNB, in a configuration similar to that shown in Figure 23 above. Note: Do not exceed the minimum bending radius specified by the cable manufacturer. -
Page 46: Transmit Cable
Transmit cable Connect the Tx cable to the radio transmitter as follows: 1. Remove power from the satellite modem. 2. Connect the Tx cable (marked with blue electrical tape) to the transmitter connector marked IFL, shown in Figure 25. CAUTION Coaxial cables and connectors can corrode if exposed to moisture. -
Page 47: Ground Connection
Figure 26: Receive connector 3. Fill the connector with dielectric silicone grease and tighten the cable connector to 22 in-lb with a torque wrench. 4. If necessary, secure the cable with cable ties. 5. After both the Tx and Rx cables are connected to the radio and the satellite modem, reapply power to the satellite modem in accordance with the instructions in the satellite modem installation guide. - Page 48 Figure 27: Ground screw on the Az/El mount This completes the installation. You must now point the antenna. See the HughesNet Ka-Band Antenna Pointing Guide (1037663-0001) for details. Chapter 4 • Cabling and connections 1037751-0001 Revision A...
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Page 49: Adjusting The Antenna Azimuth And Elevation
Chapter 5 Adjusting the antenna azimuth and elevation This chapter describes the process by which to adjust the antenna azimuth and elevation to the correct position. As the installer, you will perform these procedures during the antenna pointing process. This chapter discusses the mechanical adjustments used to modify the position of the antenna only. -
Page 50: Adjusting The Elevation
Adjusting the elevation 1. Unlock the elevation by loosening the two 5/16-inch nuts in the elevation scales on either side of the Az/El mount, as shown in Figure 28. Figure 28: Adjusting the elevation 2. Loosen the top elevation adjustment nut and spin it counter-clockwise until it rides an inch or two up the elevation rod. - Page 51 Figure 29: Elevation marker 4. Spin the upper adjustment nut clockwise to lower it on the elevation rod until it is snug against the lower nut. 5. Tighten the two lockdown nuts on either side of the Az/El mount using a ½-inch socket and torque wrench to secure the elevation setting in place.
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Page 52: Adjusting The Azimuth
Adjusting the azimuth 1. Loosen the three 5/16-inch azimuth lockdown nuts at the bottom of the Az/El canister as shown in Figure 30. Figure 30: Adjusting the azimuth 2. Point the antenna reflector in the appropriate direction as indicated on the installation reference sheet. CAUTION Do not attempt to adjust the azimuth manually by pulling on the antenna reflector or feed support arms. -
Page 53: Acronyms And Abbreviations
Acronyms and abbreviations FSB – Field service bulletin ft – Foot/feet ft-lb – Foot-pounds GPS – Global positioning system hr – Hour/hours IFL – Intra-facility link LHCP – Left-hand circular polarization LNB – Low noise block converter m – meters NEC –... - Page 54 • Acronyms and abbreviations 1037751-0001 Revision A...
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Page 55: Index
Index Installation, summary of steps Installing Antenna 24–25 feed horn kit components 17–18 feed support arms mount 20–23 radio assembly reflector 18–19 reflector Az/El mount assembly 17–18 tailpiece 26–27 mounting to mast Leveling the mast Cables 5, 29 approved types connecting to radio assembly Mast 5, 29... - Page 56 routing Transmitter connecting Tri-mast • Index 1037751-0001 Revision A...
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