Hughes HughesNet AN8-074R Installation Manual Download

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1037751-0001
Revision A
June 9, 2008

.74m Ka-Band Antenna
Installation Guide

Model: AN8-074R

Summary of Contents for HughesNet AN8-074R

Page 1: ...1037751 0001 Revision A June 9 2008 74m Ka Band Antenna Installation Guide Model AN8 074R ...

Page 2: ...ness 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 Hughes...

Page 3: ...used in this manual This section introduces the various types of warnings used in this manual to alert you to possible safety hazards DANGER Indicates an imminently 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 ...

Page 4: ...rt arms radio transmitter and antenna reflector respectively These labels advise that the antenna emits radio frequency RF energy Because of this potential safety hazard observe all cautions on these labels and in the next section Antenna installation safety Feed support arms Reflector back side Transmitter Safety alert labels on the antenna assembly ...

Page 5: ...vent 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 ...

Page 6: ...g forces on the antenna surface CAUTION If the antenna or mount assembly begins to fall during the installation do not attempt to catch it Move away and let it fall WARNING 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...

Page 7: ...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 requirement...

Page 8: ...titutional 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 Antenna Site...

Page 9: ...ing information 5 Chapter 2 Antenna parts and required tools 7 Antenna kit components 7 Az El mount reflector bracket assembly 9 Antenna reflector 10 Feed support arms and tailpiece 10 Radio assembly 11 Feed horn 12 Related Components 12 Tri mast or other antenna mount 12 Small hardware parts list 13 Tools 14 Chapter 3 Installing the antenna and radio assembly 15 Determining the pointing values 15...

Page 10: ...ing and connections 29 Cabling requirements 29 Routing the cables at the antenna 30 Connecting the transmit and receive cables 31 Transmit cable 32 Receive cable 32 Ground connection 33 Chapter 5 Adjusting the antenna azimuth and elevation 35 Adjusting the elevation 36 Adjusting the azimuth 38 Acronyms and abbreviations 39 Index 41 ...

Page 11: ... into top hole 18 12 Attaching the antenna reflector rear view 19 13 Positioning the radio 20 14 Attaching the radio assembly to the tailpiece 21 15 Determining the polarization setting 22 16 Adjusting circular polarization collar removed 23 17 Securing the waveguide collar 23 18 Remove the protective seal from the polarizer 24 19 Attaching the feed horn 25 20 Making sure the mast is plumb 26 21 I...

Page 12: ... Figures xii 1037751 0001 Revision A Chapter 5 28 Adjusting the elevation 36 29 Elevation marker 37 30 Adjusting the azimuth 38 ...

Page 13: ... Tables 1037751 0001 Revision A xiii Tables Chapter 2 1 Small hardware parts 13 2 Tools and additional materials required to assemble and install the antenna 14 Chapter 3 3 Torque specifications 16 ...

Page 14: ... Tables xiv 1037751 0001 Revision A ...

Page 15: ...n on tasks related to antenna installation These topics are included in the following sections The model AN8 074R antenna on page 1 Antenna installation summary on page 2 Tasks related to antenna installation on page 4 The model AN8 074R antenna Each satellite modem at a customer site requires an antenna and radio assembly to communicate with both the system satellite and the Network Operations Co...

Page 16: ...to identify a suitable location for the antenna See the HughesNet Antenna Site Preparation and Mount Installation Guide 1035678 0001 for details 3 Install and apply power to the satellite modem following the instructions in the installation guide for the specific satellite modem you are installing 4 Connect your laptop computer to the satellite modem and enter the installation parameters from the ...

Page 17: ...tach the assembled antenna assembly to the antenna mast pipe See Chapter 3 Installing the antenna and radio assembly 11 Install the intra facility link IFL transmit and receive cables between the satellite modem and the antenna See Chapter 4 Cabling and connections 12 Ground the antenna assembly See Tasks related to antenna installation on page 4 13 Determine the proper azimuth elevation and tilt ...

Page 18: ...hen selecting an antenna installation site As with any other type of construction a local building permit may be required before installing the antenna It is the property owner s responsibility to obtain all permits If necessary modify the installation instructions in this manual in accordance with local building codes Installing the antenna mount Before installing the antenna itself you must firs...

Page 19: ... the satellite modem See the installation guide for the specific satellite modem you are installing Grounding The entire antenna assembly must be grounded For grounding information refer to your training best grounding practices the Hughes Field Service Bulletin FSB HNS Broadband Requirements for RG 6 and RG 11 IFL Cable Connectors Ground Blocks and Ground Block Location FSB 050518_01 and applicab...

Page 20: ...Chapter 1 Overview 6 1037751 0001 Revision A ...

Page 21: ...e 7 Small hardware parts list on page 13 Tools on page 14 Antenna kit components This section identifies and describes the main components of the AN8 074R 74m Ka band antenna kit The antenna kit is shipped in three containers Figure 2 identifies the contents of each container CAUTION Metal components may contain sharp edges Use care when un packing and handling antenna parts Note To avoid potentia...

Page 22: ... assembly Feed support arms and tailpiece Antenna reflector Radio assembly Feed horn Related components not shown Tri mast or other mount The following sections describe each component of the antenna kit 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 ...

Page 23: ...eflector 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 The Az El canister secures the antenna to the mast The elevation scale is used to measure the degree of elevation The fine azimuth and elevation tools are used to finely adjust the azimuth and elevation of the reflector during antenna pointing...

Page 24: ...he reflector bracket Feed support arms and tailpiece Figure 5 shows the two feed support arms and the tailpiece The feed support arms attach to the antenna assembly at the reflector bracket The tailpiece is mounted to the ends of the feed support arms and supports the radio assembly and feed horn Figure 4 Antenna reflector CAUTION To avoid damage to the antenna reflector handle it with care ...

Page 25: ...evision A 11 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 5 Feed support arms and tailpiece Figure 6 Radio assembly ...

Page 26: ... not part of the antenna kit it is described here because it is the most commonly used mounting option for the AN8 074R Ka band antenna As shown in Figure 8 the tri mast can be positioned in a number of configurations to adapt it for mounting onto surfaces of various angles For other suitable antenna mounting options see the HughesNet Antenna Site Preparation and Mount Installation Guide 1035678 0...

Page 27: ...age 19 5 16 inch flat washers 5 5 16 inch lock washers 5 5 16 inch hex nuts 5 5 16 inch x inch hex head self tapping bolts 4 Feed support arms to reflector bracket Figure 12 on page 21 5 16 inch flat washers 4 5 16 inch x 2 inch hex head self tapping bolts 4 Tailpiece to feed support arms Figure 13 on page 22 5 16 inch flat washers 4 5 16 inch hex nuts 4 5 16 inch x inch carriage bolts 5 Reflector...

Page 28: ...rque wrench With 5 16 inch sockets capable of torquing to 8 ft lb Long shaft hexagonal Allen wrench 7 64 inch For Allen screws with a 7 64 inch hexagonal socket Driver shaft should be at least 5 inches long Torque wrench for hexagonal socket Must fit a 7 64 inch hexagonal socket and be capable of torquing to 15 in lb Bubble level Used to make sure that the mast is plumb Compass Used in determining...

Page 29: ...26 Determining the pointing values Before installing the antenna you must install and power up the satellite modem Refer to the appropriate satellite modem installation guide for instructions Once the satellite modem is operational connect it to your laptop using an Ethernet cable then use your global positioning system GPS receiver to calculate the exact latitude and longitude of the antenna site...

Page 30: ...sure to follow the instructions in this chapter in the order they are presented Tightening hardware Do not tighten any nuts or other hardware until instructed to do so See also the next item Torque Torque To ensure successful installation of the antenna it is critical that you tighten all nuts and socket head screws to the maximum torque values shown in Table 3 Note The outside diameter of the mas...

Page 31: ...of the feed support arms 1 Insert the feed support arms into the two sockets at the bottom of the reflector bracket as shown in Figure 9 2 Fasten the feed support arms to the reflector bracket by inserting a 5 16 inch inch self tapping bolt with flat washer into each hole in the feed support arms then tighten until secure Note The two feed support arms are not identical Be sure to insert each arm ...

Page 32: ...tapping bolts flat washers lock washers and nuts Installing the antenna reflector To attach the antenna reflector to the reflector bracket 1 Insert a inch x inch carriage bolt through the top hole on the reflector as shown in Figure 11 and place a 5 16 inch serrated flange nut on the bolt from the back Do not tighten at this time Figure 10 Attaching the tailpiece Figure 11 Insert first bolt into t...

Page 33: ... through the corresponding holes in the bracket as shown in the figure 3 Secure the bolts at the back of the reflector bracket using 5 16 inch flange nuts 4 Set the tilt angle in accordance with the parameters on the satellite modem local user interface LUI Installation page Figure 12 Attaching the antenna reflector rear view Note Ensure that the carriage bolts are firmly seated into the square ho...

Page 34: ... the tailpiece so that the waveguide end of the radio is nearest to the reflector as shown in Figure 13 2 Insert two 5 16 inch 3 4 inch bolts with flat washers and lock washers up through the tailpiece from underneath and into the threaded sockets on the bottom of the radio transitory as shown in Figure 14 3 Tighten the two bolts with a wrench until secure Figure 13 Positioning the radio ...

Page 35: ...hether the installation calls for left hand circular polarization LHCP or right hand circular polarization RHCP Once you determine which polarization setting is required check the position of the polarizer waveguide to determine whether an adjustment is necessary From the rear of the radio looking toward the reflector you can easily determine whether the polarizer is set for LHCP or RHCP by the wa...

Page 36: ...zer 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 As shown in Figure 16 the LHCP notch is Figure 15 Determining the polarization setting ...

Page 37: ... 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 Each half of the collar is notched to fit securely over the waveguide ridge Figure 16 Adjusting circular polarization collar removed Figure 17 Securing the waveguide collar ...

Page 38: ...on the radio assembly shown in Figure 18 2 Remove the dust cap from the stem of the feed horn and insert the O ring into the groove inside the stem 3 Position the feed horn against the waveguide as shown in Figure 19 4 As shown in the figure fit the two sections of the feed horn collar around the ridge at the point where the feed horn meets the polarizer Figure 18 Remove the protective seal from t...

Page 39: ...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 Figure 19 Attaching the feed horn ...

Page 40: ...e mast must be plumb before you install the assembly Check the mast at two locations 90 degrees apart as shown in Figure 20 2 Slide the Az El canister of the mount assembly down onto the mast pipe as shown in Figure 21 Figure 20 Making sure the mast is plumb T0144012 Top view To make sure the mast is plumb check with the level in two positions at right angles to each other Level Mast 2nd level pos...

Page 41: ...its orientation the antenna should look similar to the one shown in Figure 22 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 ...

Page 42: ...na and radio assembly 28 1037751 0001 Revision A 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 Figure 22 Assembled antenna ...

Page 43: ...ments 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 Because it is impossible to predict the requirements specific to each installation site ...

Page 44: ...ransmitter in a configuration similar to that shown in Figure 23 2 Leave a 10 foot service loop secured to the mast Az El mount assembly or reflector bracket 3 Coil the extra cable leave a drip loop and secure the Tx cable with cable ties Note Do not exceed the minimum bending radius specified by the cable manufacturer Figure 23 Transmit and receive cable configurations Note 1 Do not leave the ser...

Page 45: ...it and receive cables This section explains how to connect the Tx and Rx cables to the radio assembly at the antenna Note Do not exceed the minimum bending radius specified by the cable manufacturer Note 1 Do not leave the service loop on the roof or other mounting surface 2 Do not block access to the adjustment nuts on the Az El mount assembly Note You should secure all outdoor connections with w...

Page 46: ...ith cable ties Receive cable Connect the Rx cable to the LNB as follows 1 Ensure that power has been removed from the satellite modem 2 Connect the Rx cable marked with red electrical tape to the receive connector on the LNB shown in Figure 26 CAUTION Coaxial cables and connectors can corrode if exposed to moisture Use only compression type connectors and weatherproof them with dielectric silicone...

Page 47: ...r to the satellite modem in accordance with the instructions in the satellite modem installation guide Ground connection Ground the antenna mast at the Az El mount Figure 27 shows the location of the ground screw For specific grounding procedures refer to the sources listed in Grounding on page 5 Figure 26 Receive connector Note Although the radio transmitter contains a ground screw a separate gro...

Page 48: ...nd connections 34 1037751 0001 Revision A This completes the installation You must now point the antenna See the HughesNet Ka Band Antenna Pointing Guide 1037663 0001 for details Figure 27 Ground screw on the Az El mount ...

Page 49: ...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 It does not discuss the pointing process itself For information on pointing the AN8 074R and all HughesNet Ka Band antennas see the HughesNet Ka Band Antenna Pointing Guide 1037663 0001 This chapter contains the following sections A...

Page 50: ...unt as shown in Figure 28 2 Loosen the top elevation adjustment nut and spin it counter clockwise until it rides an inch or two up the elevation rod 3 Use the lower nut to adjust the elevation As shown in Figure 29 the bar at the left of the Az El mount acts as a pointer to indicate the value in the elevation scale For example the antenna shown in the figure is adjusted to 42 degrees Figure 28 Adj...

Page 51: ... 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 inch socket and torque wrench to secure the elevation setting in place Figure 29 Elevation marker ...

Page 52: ... azimuth cam using either a inch open ended wrench or a inch Allen wrench until you reach the desired azimuth angle 4 Verify the azimuth with a compass and lock down the antenna by tightening the three 5 16 inch nuts at the bottom of the Az El canister Figure 30 Adjusting the azimuth CAUTION Do not attempt to adjust the azimuth manually by pulling on the antenna reflector or feed support arms Doin...

Page 53: ...pounds G GPS Global positioning system H hr Hour hours I IFL Intra facility link L LHCP Left hand circular polarization LNB Low noise block converter M m meters N NEC National Electrical Code NOCC Network Operations Control Center R RHCP Right hand circular polarization Rx Receive T TRIA Transmit receive isolation assembly Tx Transmit ...

Page 54: ... Acronyms and abbreviations 40 1037751 0001 Revision A ...

Page 55: ...upport arms 10 installing 17 G Grounding 5 ground screw location 33 H Hardware parts list 13 I IFL 5 29 Installation site 4 Installation summary of steps 2 Installing feed horn 24 25 feed support arms 17 18 radio assembly 20 23 reflector 18 19 tailpiece 17 18 L Leveling the mast 26 M Mast 16 Mount for antenna 4 P Parts list 13 Pointing values 15 Polarization adjusting 21 R Radio assembly 11 instal...

Page 56: ... Index 42 1037751 0001 Revision A routing 30 Transmitter 11 connecting 32 Tri mast 12 ...

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