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Hughes AN4-074-DF installation manual Elevation

Models: AN4-074-DF

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Elevation

Adjusting elevation This section describes how to adjust the antenna elevation to the value determined by the installation software. Later, when you point the antenna, you fine-tune the elevation adjustment.

Figure 13 illustrates how you adjust the elevation by moving the antenna up and down.

Elevation

Elevation

T0145007

Figure 13: Adjusting elevation

To adjust the elevation:

1.Make sure you know the elevation value calculated by the installation software.

2.Orient the Az/El cap so the TOP label is at the upper right.

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Chapter 3 • Installing the radio and antenna assemblies 1035567-0001 Revision A

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Hughes AN4-074-DF installation manual Elevation

Contents

Installation Manual for For Consumer Installations74 m Ku-bandAntenna Model AN4-074-DF 1035567-0001 Revision A OctoberCopyright 2004, 2005 Hughes Network Systems, LLC TrademarksDANGER Important safety informationTypes of warnings used in this manual Antenna installation safety DANGERTo avoid electric shock, stay at least 20 ft from power lines DANGERObserve these precautions to avoid exposure to RF radiation, a potential safety hazard Page viii Contents Chapter Figures ChapterChapter ChapterChapter 30. Transmit and receive cable configurationsChapter Tables xiiiChapter Tables 1035567-0001Revision ATables 1035567-0001Revision A About this document Scope and audience OrganizationRevision record Date of issueRevision ScopeOverview ChapterBroadband satellite system components Antenna installation overview on pageFigure 1 Installed .74 m antenna Chapter 1 Overview 1035567-0001Revision ARadio not visible in optional shroud Antenna reflector Transmitter Feed arm MastAntenna installation overview 6.Assemble and install the Az/El cap7.Install the radio on the feed arm 10.Install the antenna on the mountTasks related to antenna installation Selecting the installation siteInstalling the antenna mount Grounding Mount Installation Guide HNSAntenna parts and required tools Antenna kit componentsChapter Antenna kit components on pageThe Az/El cap is shipped in a bag containing Figure 5 Radio assembly Figure 4 Feed arm unattachedFigure 7 Optional shroud for feed assembly Trimast or other antenna mountFigure 6 Trimast in various configurations Quantity Small hardware listDetails Details ToolsTool Installing the radio and antenna assemblies ChapterDetermining the pointing values on page Assembling the Az/El cap on pageDetermining the pointing values Assembling the Az/El cap 6.Repeat until all four bolts are installed Installing the Az/El cap onto the antenna Figure 12 Locating the polarization scaleElevation Figure 14 Locating the elevation reference edge Figure 15 Reading the elevation reference edgeElevation nut one on each side Elevation reference edgePolarization Bottom of reflector Installing the fine elevation pointing tool Figure 18 The fine elevation pointing tool3.Separate the end of the waveguide from the shim 4.Remove the horizontal shim and O-ring Because of the shim’s alignment pins, you must rotate the TRIA 90 from its horizontal polarization position. You must rotate the TRIA before you re-attachthe waveguide end so you can insert the shim alignment pins into the waveguide end plate. See Figures 21 and 8.Insert and tighten the four Allen screws Installing the radio assembly on the feed arm Figure 23 Securing the O-ringConnecting the feed arm to the antenna reflector Feed assembly WaveguideTransmitterTo connect the feed arm to the antenna reflector Installing the antenna assembly onto the mast Attaching the optional shroud Side screw holes, one on each side Bottom screw Figure 29 Feed assembly with shroudFigure 28 Shroud screws Cabling and connections ChapterRouting the cables at the ODU on page Ground connection on pageTransmitter Routing the cables at the ODUReceive cable Connecting the transmit and receive cables Transmit cable4.Secure the cable with cable ties Figure 33 Ground screw on the transmitter Ground connectionTransmit Fconnector, female Ground screw Not used Page Pointing the antenna Adjusting the antenna on pageIsolating the transmit signal on page ChapterAntenna pointing overview Using the installation softwarePeaking the signal Cable connector Display Figure 34 OPI optional toolPointing Interface Operating Instructions HNS Prerequisites for antenna pointing Adjusting the antenna AzimuthElevation PolarizationPointing adjustments on Az/El capFigure 38 Pointing features on the Az/el cap Figure 39 Antenna adjustment locations3/4-in.to the left of mark 1 and label it Receive pointing not yet moved to mark 3 on the mast, return to step 1 in Adjusting azimuth and adjust it again. Keep moving the reflector a little at a time until you get a signal Elevation Fine-tunethe antenna elevation as follows2.While watching the signal strength display, adjust the elevation adjustment nuts by turning them a few turns clockwise and counterclockwise until you peak the signal again c.Fully tighten the left nut torque to 12 ft-lbf PolarizationIsolating the transmit signal 1.Loosen the two elevation nuts Final steps Removing the fine elevation pointing toolAcronyms and abbreviations Page Index Index 1035567-0001Revision A Tasks related to antenna installation 4 Tool listTransmit cable connecting 33 routing