Hughes DIRECWAY AN4-074-DF User's Manual
Contents
1. 15 Adjusting elevation 0 0 cece eee eee eee 16 Adjusting polarization 0 0 eee eee eee eee 18 Installing the fine elevation pointing tool 20 e Contents 1035567 0001 Revision A X e Contents 1035567 0001 Revision A Installing a shim for vertical transmit polarization Installing the radio assembly on the feed arm Connecting the feed arm to the antenna reflector Installing the antenna assembly onto the mast Attaching the optional shroud slsleleeeeeses Chapter 4 Cabling and connections leeeeeeee Routing the cables at the ODU 00000 Connecting the transmit and receive cables Transmit cable 0 2 orea min i O nea Ora ek eee Chapter 5 Pointing the antenna eere Antenna pointing Overview leeeee eee Using the installation software 2 000 5 Peaking the signal 0 0 cece eee eee Personnel requirements 00 0 c eee eee eee Pointing parameters 0 2 0 0 eee eee ee eee Outdoor pointing interface 0 0 0 eee eee eee OPT block 5 RR wer RE ee ERE PLS Prerequisites for antenna pointing 04 Adjusting the antenna 0 0 eee ee eee eee ee Pointing adjustments on AZ El cap 2 2 005 Checking the azimuth elevation and polarization settings Receive pointing2. 1 Align the two clamp bolt holes with the holes at the base of the elevation cap 2 Use a 1 2 in wrench to install the elevation clamp bolt and nut 3 Swing the flange so the two bolts on its wide side align with the installation holes on the AZ El cap 4 Insert the flange bolts in the holes and use a 1 2 in wrench to secure them using the flange bolt nuts Chapter 3 Installing the radio and antenna assemblies 20 1035567 0001 Revision A Installing a shim for vertical transmit polarization Follow the instructions in this section only if installation specifications or a service order states that vertical transmit polarization is required If vertical transmit polarization is not required go to nstalling the radio assembly on the feed arm on page 25 The radio assembly is shipped with a horizontal transmit polarization shim installed If vertical transmit polarization is required you must remove the horizontal shim and replace it with a vertical transmit polarization shim Note If you need to change from horizontal to vertical transmit polarization on an antenna that has the radio assembly already installed on the feed arm you will have to remove the radio assembly from the feed arm before you can follow the instructions in this section Figure 19 shows where the shim is located and shows three of the four Allen screws that hold the shim in place TRIA ww Shim See also Figure 20 Allen screws Wa
3. lle Adjusting azimuth 0 0 0 0 cee eee eee Peaking the signal 0 2 0 cece eee ee eee eee Adjusting elevation llle Adjusting polarization lsleleeeeeees Isolating the transmitsignal lesser Ernalsteps oeste cr Esfera cive fash vel Removing the fine elevation pointing tool Figures Chapter 1 1 Installed 74m antenna oi ei enc eee eo PIX sEOPXCW RS 2 Chapter 2 2 AZ el Cap xc eot ve erede ettet d etre eet reete sten 6 3 Antenna reflector rear view s s pestise riro rirni piy iaa nE nee 6 4 Feed arm unattached erreietan EEA ENa 7 5 Radiccassembly e250 die tenis Pe ain baa ee Gey aaa Ee aetna 7 6 Trimast in various configurations lle 8 7 Optional shroud for feed assembly 0 0 eee eee eee 8 Chapter 3 8 Revolving plate sis tnra lese 13 9 Aligning the revolving plate 2 0 eee eee eee 13 10 Aligning the Az el cap bolts 2 2 2 eee eee ee nee 14 11 Antenna adjustments for elevation and polarization 15 12 Locating the polarization scale 2 2 eee eee 15 13 Adjusting elevation sy ior cae ver Ape I ER eS 16 14 Locating the elevation reference edge lsleeleeeeeees 17 15 Reading the elevation reference edge 0 cee eee eee eee 17 16 Adjusting polarization 0 2 eect ee een eee 18 17 Placing the Az El cap on the antenna reflector 00005 19 1
4. ee eee ee 43 39 Antenna adjustment locations 0 0 cece eee eee eee 43 40 Locating and lining up the azimuth bearing 0 000 44 41 Adjusting azimuth ssec ecese sirener ii etea KERETE EOE EN EE EEEa 45 42 Adjusting elevation osinon eean Rie ihr p E e pe 47 43 Blevation nutsa sets wy At ana aids ln el wee dake ete 47 44 Adjusting elevation 0 0 cece cece eee ence eens 49 1035567 0001 Revision A Tables Chapter 2 T Parts list crs pune meo ae edet eee cete tones oes 9 2 Tools required to install and point the antenna llle 10 e Tables E 1035567 0001 RevisionA XIII T e Tables XIV 1035567 0001 Revision A About this document Scope and audience This manual explains how to assemble install and point the DIRECWAY model AN4 076 DF 74 m antenna It is written for qualified installers who are familiar with satellite antenna installation practices and are capable of properly applying the information presented The installer may be required to Use a power drill to drill holes into a building Locate studs rafters or trusses and drill holes in the exact center of them Determine whether there are water pipes electrical wiring or gas lines hidden in the walls near where you will be drilling Route coaxial cable through the foundation wall under floors and through interior walls Ground the satellite antenna and coaxial cable as recommended in the Nati
5. gt ae E E uu i Le Elevation 70145007 Figure 42 Adjusting elevation Fine tune the antenna elevation as follows 1 Loosen the two elevation nuts See Figure 43 The elevation nuts are located on the curved slots on each side of the canister Do not confuse the elevation nuts with the elevation adjustment nuts also shown in Figure 43 Elevation adjustment nuts Elevation Eu I Elevation nut one j adjustment on each side Canister Figure 43 Elevation nuts Chapter 5 Pointing the antenna 1035567 0001 Revision A 47 48 Chapter 5 Pointing the antenna 1035567 0001 Hevision A 2 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 Note You may have to pull back on the top of the antenna to take pressure off the elevation adjustment bolt when making adjustments When the signal is peaked tighten the two elevation nuts See Figure 43 on page 47 To be sure you have acquired the strongest possible signal repeat the sequence beginning at step 2 in the section Peaking the signal on page 38 Adjust azimuth then elevation then azimuth again and continue until there is no improvement in signal strength To complete the alignment process you must tighten the three mast clamp bolts but tightening them can cause loss of signal stre
6. inaccessible to the general public such as a fenced enclosure or a roof The antenna must be mounted such that there is no object outside the controlled area which could reasonably be expected to support a person within 6 ft 7 in of the edges of a cylindrical space extending from the antenna reflector 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 Failure to observe these cautions could result in injury to eyes or other personal injury N CAUTION e All installations of any type or size must carry an industry standard and government approved Radiation Hazard Caution label on the feed arm e 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 that is 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 Some installations may require additional precautions See also the Antenna Site Preparation and Mount Installation Guide HNS 1035678 0001 e Important safety information 1035567 0001 Revision A T e Important safety information VIII 1035567 0001 Revision A Contents Important safety information eee
7. you must allow at least 24 hr for the concrete to cure before you can install the antenna Plan accordingly For complete information concerning antenna mount installation including various mounting methods refer to the DIRECWAY Antenna Site Preparation and Mount Installation Guide Use only the antenna mount installation methods documented in the DIRECWAY Antenna Site Preparation and Mount Installation Guide The entire antenna assembly must be grounded For grounding information refer to your training best grounding practices and applicable parts of the National Electrical Code NEC For cable specifications see the IDU manual How the cable is run depends on the specific installation site Route and connect the cable according to your training and best practices Chapter 2 Antenna parts and required tools Antenna kit components This chapter describes the components and parts provided with the model AN4 074 DF antenna kit It includes the following sections e Antenna kit components on page 5 e Small hardware list on page 9 e Tools on page 10 This section identifies and describes the key components of the 74 m antenna kit For an illustration of an installed 74 m antenna see Figure 1 on page 2 The key components are e Azimuth elevation Az El cap e Antenna reflector e Feed arm and radio assembly Related components e Trimast or other mount e Optional shroud Chapter 2 Antenna parts and requ
8. 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 in this manual manual to alert you to possible safety hazards N DANGER Indicates an imminently hazardous situation which if not avoided will result in death or serious injury N WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury N CAUTION Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury CAUTION Indicates a situation or practice that might result in property damage e Important safety information yzi 1035567 0001 RevisionA M Product warning labels The following safety alert label is affixed to each side of the satellite antenna feed arm This device emits radio frequency energy Keep two feet 0 6 meters away from this point Before servicing or upgrading unplug indoor power connection T0145005 This label advises that the antenna emits radio frequency RF energy Because of this potential safety hazard observe all cautions in the following section Antenna installation safety concerning RF radiation Antenna installation Observe the following precautions when installing the satellite safety antenna This manual also includes additional safety alerts where appropriate concerning specific installation pr
9. and receive cables to the radio assembly You must connect the transmit receive and ground cables before you can point the antenna Pointing the antenna on page 37 The chapter includes these sections e Routing the cables at the ODU on page 32 e Connecting the transmit and receive cables on page 33 e Ground connection on page 35 Before you perform the steps explained in this chapter you must route and terminate the transmit and receive cables from the IDU to the ODU For cable specifications and cabling between the IDU and ODU see the IDU instruction manual How the cables are run depends on the specific installation site Route and connect the cables according to your training and best practices CAUTION Coaxial cable can corrode if exposed to moisture Use weatherproof connectors Do not use push on connectors Chapter 4 Cabling and connections 1035567 0001 Revision A 31 Routi ng the cables at Route the coaxial transmit and receive cables at the ODU as the ODU follows 1 Route the transmit cable marked with blue electrical tape to the back of the transmitter in a configuration similar to that shown in Figure 30 Receive cable marked with RED tape Receive cable passes through feed arm Transmitter Transmit cable marked with BLUE tape T0145004 Figure 30 Transmit and receive cable configurations 2 Route the receive cable marked with red electrical tape up the mast behind the ref
10. sec Second T TRIA Transmit receive isolation assembly e Acronyms and abbreviations 1035567 0001 Revision A 53 e Acronyms and abbreviations 94 1035567 0001 Revision A Index A Antenna adjustment locations 43 installing onto the mast 28 mount 4 pointing 38 isolating the transmit signal 50 receive pointing 45 reflector 6 Az El cap 6 assembling 13 installing 15 Azimuth adjusting 44 C Cables 4 connecting 32 Components 5 Connectors 31 E Elevation adjusting 47 fine elevation pointing tool 20 initial setting 16 scale 17 F Feed arm 7 installing 26 Fine elevation pointing tool installing 20 G Grounding 4 ground screw location 35 H Hardware parts list 9 j Installation summary of steps 3 Isolating the transmit signal 50 M Mount for antenna 4 O OPI ground block 40 P Parts list 9 Pointing 38 fine elevation pointing tool 20 isolating the transmit signal 50 receive pointing 45 Polarization adjusting 49 initial setting 18 shim for vertical or horizontal transmit polarization 21 R Radio assembly installing on feed arm 25 shroud installing 29 Receive pointing 38 Reflector 6 S Shim for transmit polarization 21 Shroud for feed assembly 8 installing 29 e Index 1035567 0001 RevisionA 99 56 Signal strength maximizing 46 Summary of installation steps 3 System components 1 T Tasks 3 related to antenna installation 4 Toollist 10 Trans
11. the installation software Peaking the signal Chapter 5 Pointing the antenna 1035567 0001 Hevision A This chapter describes a general procedure for pointing the antenna The objectives for antenna pointing are to e Locate and detect the satellite signal e Peak the signal to achieve the greatest possible signal strength The exact pointing procedure depends on the installation software used SBC or WebSetup For a description of SBC and WebSetup see Determining the pointing values on page 12 The installation software guides you through a step by step process for installing the IDU and pointing the antenna It calculates your exact location and the values you use to set polarization elevation and azimuth Use the information in this chapter as a guide for the overall pointing process and for instructions on how to make mechanical adjustments to the antenna For specific steps follow the instructions in the IDU manual and on the installation software Screens In general you will alternate between these two activities e Following the software prompts and instructions e Adjusting the antenna azimuth elevation and polarization as necessary to acquire and then peak the satellite signal The required adjustments are different for each installation location Correct antenna alignment is critical to the operation of the system When the antenna is pointed directly at the satellite it receives a strong signal If it is n
12. 0145002 Flat roof Pitched roof Figure 6 Trimast in various configurations Optional shroud The shroud shown in Figure 4 is optional It attaches to the feed assembly to protect the feed assembly and improve its appearance but it is not required Figure 7 Optional shroud for feed assembly Chapter 2 Antenna parts and required tools 1035567 0001 Revision A Small hardware list Table 1 lists the small hardware parts that are included in the antenna kit You may have hardware left over after you have completed installation Table 1 Parts list Item Details Quantity Parts used for antenna assembly and installation Bolts 5 16 18 2 Flat washers 5 16 in 6 Lock washers 5 16 in 2 Lock washers M4 4 Bolts with Az El cap 7 16 in 4 Nuts with Az El cap 7 16 in 4 Washers with Az El cap 7 16 in 4 Allen screws M4 4 Self tapping screws 5 16 in 4 Wedge nut 5 16 18 1 Hex head bolt for wedge nut 5 16 18 x 2 in 1 O ring Rubber 1 Parts used for grounding Grounding bolt 1 4 20 x 1 2 in 1 Star washer Toothed 1 4 in 1 Hex head ground nut 1 4 20 1 cy Note Items needed to connect the antenna to the IDU are shipped with the IDU If you use the optional shroud three Phillips head screws are included in a bag taped to the shroud Chapter 2 Antenna parts and required tools 1035567 0001 Revision A 9 Tools Table 2 lists the tools required to assemble
13. 0145008 Figure 44 Adjusting elevation To adjust polarization follow these steps 1 Fine tune the polarization setting by loosening the polarization nuts just enough to enable you to rotate the antenna reflector a few degrees in each direction If the signal strength does not change set the polarization to the value calculated by the installation software Otherwise set the polarization at the setting where you peaked the signal 2 While monitoring the signal strength number to ensure that it stays at maximum tighten the polarization nuts Chapter 5 Pointing the antenna 1085567 0001 RevisionA 49 50 Isolating the transmit signal Chapter 5 Pointing the antenna 1035567 0001 Revision A To prevent signal cross talk you use a procedure known as Automated Cross Polarization ACP to isolate the transmit signal from the receive signal ACP is included in the installation software The ACP software operates in two different modes manual or automatic fine pointing The automatic mode takes a snapshot of the cross polarization isolation measurement while the manual mode gives real time feedback of cross polarization isolation measurement while adjusting the antenna Passing the automatic test enables the transmitter Once the transmitter is enabled the site is ready to be registered The ACP method consists of using the manual and or automatic fine pointing tests and adjusting the antenna by small increments if n
14. 8 The fine elevation pointing tool 2 0 cee eee 20 19 Shim location next to TRIA lssesleeeeeee III 21 20 Horizontal shim and vertical shim for transmit polarization 22 21 Direction of TRIA rotation for vertical polarization 23 22 TRIA position for horizontal and vertical transmit polarization 24 23 Securing the O ring cecus cz ete NS RUE vr e pes 25 24 Radio assembly installed on the feed arm 0 0 0 0 0 cee eee eee 26 25 Inserting the wedge nut bolt 01 eee eens 27 26 Installing the antenna assembly onto the mast 0 00005 28 27 Feed horn groove x is lui ee e ineathlmina Pele PME Een d 29 28 Shroud screws si onsec Cer Re er e pee pet ep ede eoe 30 29 Feed assembly with shroud 0 0c eee eee eee 30 e Figures 1035567 0001 Revision A Xii e Figures Chapter 4 30 Transmit and receive cable configurations 0 00 c eee ee eee 32 31 Connecting the transmit cable 0 0 0 eee ee 33 32 Connecting the receive cable to the LNB 0 0 cee eee eee 34 33 Ground screw on the transmitter 2 2 eee eee eee 35 Chapter 5 34 OPI optional tool 0 cece eens 39 39 OPI ze oi OE ee OS GES Sh rd SL SL Shee 40 362OPEBIOCK coc ences ed vias bol aspen sedent beh Teese 40 37 Adjusting azimuth elevation and polarization 0005 42 38 Pointing features on the Az el cap 0 0
15. HUGHES Uum NETWORK SYSTEMS DIREQCWAY Installation Manual for 4 m Ku band Antenna Model AN4 074 DF For Consumer Installations 1035567 0001 Revision A October 31 2005 11717 Exploration Lane Germantown MD 20876 T 301 428 5500 F 301 428 1868 2830 Copyright 2004 2005 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 HUGHES NETWORK SYSTEMS and DIRECWAY are trademarks of Hughes Network Systems LLC All other trademarks are the property of their respective owners Important safety information For your safety and protection read this entire installation manual before you attempt to install the satellite antenna In particular read this safety section carefully
16. a you fine tune the elevation adjustment 6 When the edge is at the correct elevation value tighten the two elevation nuts Chapter 3 Installing the radio and antenna assemblies 1035567 0001 RevisionA 17 Adjusting polarization This section describes how to adjust the antenna s polarization to the value determined by the installation software Later when you point the antenna you fine tune the polarization adjustment Figure 16 illustrates how you adjust polarization by rotating the antenna Polarization E Ve xN 3 T0145008 Figure 16 Adjusting polarization Adjust polarization as follows 1 Make sure you know the polarization value calculated by the installation software 2 Locate the polarization scale see Figure 12 on page 15 The O value is at the top of the Az El cap 3 Turn the AZ El cap to the correct polarization value Align the mark on the top of the Az El cap with the correct value on the polarization scale Figure 12 on page 15 shows a setting of positive 3 Each tick mark represents 2 4 When the polarization is at the correct value tighten the four polarization nuts As you tighten make sure the polarization remains at the correct value Later when you point the antenna you fine tune the polarization adjustment Chapter 3 Installing the radio and antenna assemblies 18 1035567 0001 Revision A 5 Place the Az El cap over the screw holes in the back of the antenna refl
17. a before installing it on the Az El cap cy Note Make sure the feed arm is oriented as shown in Figure 24 Chapter 3 Installing the radio and antenna assemblies 26 1035567 0001 Revision A To connect the feed arm to the antenna reflector 1 Insert the 5 16 18 wedge nut thinner end first into the slot provided on the back of the reflector as shown in Figure 25 The wedge nut is keyed so that it will fit properly only one way into its slot in the reflector Make sure the hole in the wedge nut is aligned with the hole in the reflector so you can insert the bolt See Figure 25 Antenna reflector 5 16 18 wedge nut yy Feed arm Close up view N Wedge nut Transmitter P B 5 16 in B flat washer 5 16 18 hex bolt 5 16 in lock washer T0145009 Figure 25 Inserting the wedge nut bolt 2 Install the feed arm into the feed support socket on the underside of the antenna reflector If you have the reflector turned upside down to insert the feed arm the orientation is the opposite of that shown in Figure 25 Use a 1 2 in wrench to secure the feed arm with a 5 16 in flat washer 5 16 in lock washer and 5 16 18 hex bolt Use a torque wrench to tighten the hex bolt from 8 ft Ibf to 10 ft Ibf Chapter 3 Installing the radio and antenna assemblies 1035567 0001 Revision A 27 Installing the antenna This section describes how to install the antenna assem
18. and polarization angle Or you can enter the local ZIP code and let the software calculate these values The OPI shown in Figure 34 is an optional tool that eliminates the need for a laptop computer on the roof It is a portable repeater that displays the same values as are shown on the computer running the installation software Cable connector Seek Figure 34 OPI optional tool Chapter 5 Pointing the antenna 1035567 0001 RevisionA 99 40 The OPI attaches to the receive cable from the LNB as shown in Figure 35 Note that the OPI will not work unless it is enabled on the appropriate screen on the installation software Check the box labeled Enable OPI Display For further details see Outdoor Pointing Interface Operating Instructions HNS 1031832 0001 DIREQWAY e P d g o EN 22 kHz block EJ if rquired OPI T0145011 Ground block Figure 35 OPI OPI block f you use an OPI with a model RA6 074 radio assembly you must use a 22 kHz block filter This block illustrated in Figure 36 is included in the OPI kit Its model number is OPI Block 22 KHZ BLOCK Female Male connector connector to OPI to cable DB 22K 2xuz BLOCK li Figure 36 OPI block Install the block between the OPI and the radio as illustrated in Figure 35 Some variations of this block may have female F connectors at both ends If the block you use has two F connectors you will have to make a ju
19. bly assem bly onto the mast including the Az El cap onto the mast To install the antenna assembly onto the mast 1 Lightly grease the area at the end of the mast or metal pole that will be covered by the AZ El cap canister This makes it easy to rotate the antenna to adjust the azimuth Any grease will do you can use automotive grease or household grease such as Vaseline 2 Use a 1 2 in open end wrench to loosen the three clamp nuts and the elevation pivot bolt nut so the collar can slide over the mast or metal pole 3 Lift the antenna assembly and slide the AZ El cap onto the mast or metal pole see Figure 26 The antenna should face toward the satellite 4 Tighten the clamp nuts all the way then loosen them just enough to move the antenna reflector from side to side and adjust the azimuth The clamp bolts should be as snug as possible but still allow the antenna reflector to be moved from side to side To satellite Clamp bolt nuts Place Az El cap over mast or metal pipe Mast or metal pipe Figure 26 Installing the antenna assembly onto the mast Chapter 3 Installing the radio and antenna assemblies 28 1035567 0001 Revision A Attaching the optional shroud This section explains how to attach the optional shroud to the feed assembly The shroud helps protect the feed assembly and improves its appearance but it is not required One side of the shroud is wider than the other You place the wi
20. c bearing Use a pencil to mark the location on the mast and label this mark b Mark the location on the Az El cap above mark 1 This is the azimuth alignment mark See Figure 40 T Elevation reference edge Azimuth alignment mark Figure 40 Locating and lining up the azimuth bearing c Make another mark on the mast 3 4 in to the right of mark 1 and label it 2 Make another mark on the mast 3 4 in to the eft of mark 1 and label it 3 4 Stand behind the antenna and point the front of the reflector to the left of the estimated bearing to the satellite so the azimuth alignment mark lines up with mark 2 Chapter 5 Pointing the antenna 44 1035567 0001 Revision A Receive pointing Receive pointing peaks the receive signal You must peak the signal even if the antenna is locked to it Use the installation software to check the signal strength Then adjust the antenna to peak the signal The installation software shows numerical and graphic indications of signal strength Adjusting azimuth Figure 41 illustrates how you adjust antenna azimuth by moving the antenna from side to side 4 Azi Muth S um um um Um EROR a v de xn z A NO 27 N oM Dou d 4 X VS d T0145006 Figure 41 Adjusting azimuth To adjust the azimuth follow these steps 1 Stand behind the antenna grasp the outer edges of the reflector and while looking at the azimuth alignment mark adjust the azim
21. der side on the right side of the feed assembly as you face the antenna The shroud screws are in a bag taped inside the shroud The two side screws are optional but installing them does provide a tighter fit and plug the screw holes Before placing the shroud over the feed assembly be sure the cables are positioned so that when the shroud is placed it does not interfere with or cause sharp bends in the cables especially at the connectors To attach the shroud 1 Facing the antenna reflector place the shroud over the feed assembly so that the broad side is on the right Align the side screw holes The sides of the oval hole fit either behind or in the feed horn groove which is shown in Figure 27 Groove A Figure 27 Feed horn groove Chapter 3 Installing the radio and antenna assemblies 1035567 0001 RevisionA 29 2 Use a No 2 Phillips head screwdriver to install the bottom screw See Figure 28 Side screw holes one on each side Figure 28 Shroud screws 3 Optional Install the two side screws The final assembly will look like Figure 29 Figure 29 Feed assembly with shroud Chapter 3 Installing the radio and antenna assemblies 30 1035567 0001 Revision A Chapter 4 Cabling and connections This chapter illustrates where the ODU transmit receive and ground connectors are located shows how to route the transmit and receive cables at the ODU and explains how to connect the transmit
22. ecessary until it passes the automatic ACP test Follow the general instructions below for the ACP tests Use the installation software screens to initiate tests and see the test results First run an automatic ACP test 1 Before running ACP tests lock down all antenna adjustment nuts and bolts 2 Initiate an automatic ACP test If the antenna passes this test it is pointed and ready to be registered The following test is necessary only if the antenna fails the automatic ACP test 1 Loosen the four polarization nuts one quarter of a turn just enough so you can adjust the polarization 2 Using the software screen initiate a manual ACP test 3 When the test starts make small 1 or less changes in polarization while observing the transmitter isolation 4 Peak the polarization to the highest possible transmitter isolation 5 Tighten the four polarization nuts Note When you adjust any one of the axes polarization elevation or azimuth you may also have to adjust one or both of the other axes 6 If the antenna passes the manual test stop the test and run the automatic ACP test again If the antenna passes the automatic test it is pointed and ready to be registered The following steps are necessary only if the antenna does not pass the manual ACP test 1 Loosen the two elevation nuts In the following steps you make very small adjustments in azimuth and elevation If you make too great a change you l
23. ector see Figure 17 Self tapping screws e Self tapping screws Bottom of reflector Figure 17 Placing the Az El cap on the antenna reflector Make sure the Az El cap mount screw holes are properly aligned with the holes in the antenna reflector The arrow on the Az El labeled TOP should point to the top of the antenna reflector Make sure the reflector is oriented so the section with a hole in its rim is on the bottom 6 Use a 7 16 in socket or open end wrench to install the four 5 16 in self tapping screws and flat washers in the holes Turn each screw clockwise until contact is made with the mount surface Then use a torque wrench with 1 2 in socket to tighten them to 10 ft Ibf Do not overtighten Chapter 3 Installing the radio and antenna assemblies 1035567 0001 RevisionA 19 Installing the fine The fine elevation pointing tool Figure 18 consists of a long elevation poi nti ng tool elevation adjustment bolt with a clamp on one end and a flange on the other end The clamp and flange attach to the Az El cap as shown in Figure 18 Flange Flange bolts and nuts 2 sets Elevation adjustment nuts 2 Do not remove Elevation adjustment bolt y j ug eo t ELM t i9 l gt T Do not remove igs 9 this nut and bolt Clamp Clamp bolt with nut on opposite end Figure 18 The fine elevation pointing tool Install the fine elevation pointing tool as follows
24. enna 1085567 0001 RevisionA 91 52 Final steps After pointing make sure the required safety labels and or signs are present e Make sure a Radiation Hazard Caution label is present legible and visible on the feed arm If the antenna is enclosed by a fence make sure a Radiation Hazard Caution sign is present legible and visible on the entrance gate If the antenna is installed on a roof with a permanently mounted access ladder make sure a Radiation Hazard Caution sign is present legible and visible on or near the ladder Removing the fine elevation Be sure to remove the fine elevation pointing tool so you can use pointing tool it for subsequent installations 1 Remove the pointing tool s upper and lower brackets from the elevation bracket and canister 2 Replace the nuts and bolts in the pointing tool s tool brackets so they will not get lost The antenna is now installed and pointed ready for operation Refer to the IDU installation manual for information on how to register and configure the site Chapter 5 Pointing the antenna 1035567 0001 Hevision A Acronyms and abbreviations F ft lbf Foot pound force I IDU Indoor unit in Inch L LNB Low noise block converter M m Meter min Minute mm Millimeter N NEC National Electrical Code NOC Network Operations Center O ODU Outdoor unit OPI Outdoor pointing interface R RF Radio frequency S
25. enna assemblies Assemble and install the Az El cap Chapter 3 Installing the radio and antenna assemblies Install the radio on the feed arm Chapter 3 Installing the radio and antenna assemblies Attach the feed arm to the antenna reflector Chapter 3 Installing the radio and antenna assemblies Assemble the antenna Chapter 3 Installing the radio and antenna assemblies Install the antenna on the mount Chapter 3 Installing the radio and antenna assemblies Run cable to connect the radio to the IDU Connect the cables to the ODU Chapter 4 Cabling and connections Ground the antenna assembly Point the antenna Chapter 5 Pointing the antenna For the steps not shown in bold type see the following section Tasks related to antenna installation Chapter 1 Overview 1035567 0001 Revision A 3 4 Tasks related to antenna installation Selecting the installation site Installing the antenna mount Grounding Cables and cabling Chapter 1 Overview 1035567 0001 Revision A This section explains where you can find information on tasks related to antenna installation Factors you should consider in selecting an installation site are discussed in the DIRECWAY Antenna Site Preparation and Mount Installation Guide HNS 1035678 0001 A suitable antenna mount must be installed before the antenna can be installed For pole mounts that require a concrete base
26. he feed arm so you can install the four M4 screws Install the lock washers on the screws Use the Allen wrench to install the M4 Allen screws but do not fully tighten them 3 Align the bolt holes on the top of the transmitter with the bolt holes on the bottom of the feed arm 4 Install the 5 16 18 bolts in the aligned holes Finger tighten them do not tighten them further at this time 5 Use the Allen wrench to tighten the Allen screws Chapter 3 Installing the radio and antenna assemblies 1035567 0001 Revision A 29 6 Use a 5 16 in socket wrench or open end wrench to tighten the bolts attaching the transmitter to the feed arm 7 Make sure the transmitter and feed arm are oriented correctly as shown in Figure 24 Feed assembly 2 1 1 8 n VAI i Ska P TAD SMS Rae i ATT rtp ETT Waveguide Transmitter Figure 24 Radio assembly installed on the feed arm 8 Attach the transmitter to the bottom of the feed arm When you are done the assembly looks like Figure 24 Con necting the feed This section describes how to connect the feed arm to the antenna arm to the antenna reflector reflector CN Note If you are installing the antenna assembly on a metal pole mount it may be easier to attach the feed arm after you have installed the antenna on the AZ El cap See Installing the antenna assembly onto the mast on page 28 However if you are using a ladder it may be easier to attach the feed arm to the antenn
27. iii Types of warnings used in this manual lil Product warning labels iv Antenna installation safety 00 0 eee eee ees iv About this document 0 cece cece ceeeee XV Scope and audience 0 eee eee eee XV Organization I Ae albeit eaten XV Revision record 00 0 eee eee ee eee eee xvi Chapter 1 OVervieWui e Maes See s ey uiu NE SEE Ne ERU Ks 1 Broadband satellite system components 4 1 Antenna installation overview 0 0 0 0c eee eee 3 Tasks related to antenna installation 04 4 Selecting the installation site 0 0 uena 4 Installing the antenna mount 0 000008 4 Grounding ine gaise Gaal Debe Nb rdiet b ia eases 4 Cables and cabling 0 0 cece eee eee eee 4 Chapter 2 Antenna parts and required tools 5 Antenna kit components 5 AZ El cap and collar 2 2 eese 6 Antenna reflector 0 0 cece eee eee eee 6 Feed arm and radio soan ioi cee ene 7 Trimast or other antenna mount 000 08s 8 Optional shroud 0 0 0 cece cee eee eee 8 Small hardware list 9 Tools tee ater tee ity e tes me lta E Roe Mtg Gn SU Lov ete 10 Chapter 3 Installing the radio and antenna assemblies 11 Determining the pointing values 00 12 Assembling the AZ El cap 0 0 0 0 eee eee eee ee 13 Installing the Az El cap onto the antenna
28. install and point the antenna Table 2 Tools required to install and point the antenna Tool Details Open end wrench 1 2 in Open end or 7 16 in socket wrench Socket wrench or 5 16 in adjustable wrench Socket wrench 1 2 in Torque wrench With 1 2 in socket capable of torquing to 12 ft Ibf Allen wrench 3 mm Phillips head screwdriver No 2 needed if the optional shroud is installed Compass Hand held Pencil Carpenters pencil Fine elevation pointing Reusable tool Chapter 2 Antenna parts and required tools 10 1035567 0001 Revision A Chapter 3 Installing the radio and antenna assemblies This chapter explains how to install the antenna radio and associated hardware Topics include Determining the pointing values on page 12 Assembling the Az El cap on page 13 Installing the Az El cap onto the antenna on page 15 Installing the fine elevation pointing tool on page 20 Connecting the feed arm to the antenna reflector on page 26 Installing a shim for vertical transmit polarization on page 21 Installing the radio assembly on the feed arm on page 25 Connecting the feed arm to the antenna reflector on page 26 Installing the antenna assembly onto the mast on page 28 Attaching the optional shroud on page 29 The mast must be installed before you can install the antenna For information on antenna mounting methods see the DIRECWAY Antenna Site Preparation and Mount Installa
29. ion The cap has an arrow labeled TOP to show you how to orient the cap vertically See Figure 12 Figure 12 Locating the polarization scale Chapter 3 Installing the radio and antenna assemblies 1035567 0001 Revision A 15 16 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 A Ns id LEE 2 2 v 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 Chapter 3 Installing the radio and antenna assemblies 1035567 0001 Revision A 3 Use a 1 2 in socket wrench or open end wrench to loosen the two elevation nuts See Figure 14 4 Locate the elevation reference edge on the elevation scale on the right side of the cap assembly See Figures 14 and 15 Elevation nut one on each side Elevation reference edge Read the elevation value at the elevation reference edge In this picture the elevation is set to 34 Figure 15 Reading the elevation reference edge 5 Move the canister until the elevation reference edge is at the correct value Later when you point the antenn
30. ired tools 1035567 0001 Revision A 5 Az El cap and collar The Az El cap Figure 2 is used to point the antenna at the satellite The Az El cap is shipped unassembled it can be assembled in about 2 to 5 min Az El mechanism Polarization plate Figure 2 Az el cap The AZ El cap is shipped in a bag containing e Az El mechanism e Revolving plate e Polarization plate e Four 7 16 in bolts nuts and washers Antenna reflector The antenna reflector is shown in Figure 3 Figure 3 Antenna reflector rear view Chapter 2 Antenna parts and required tools 6 1035567 0001 Revision A Feed arm and radio Figure 4 shows the feed arm and Figure 5 shows the radio assembly Figure 4 Feed arm unattached The radio assembly Figure 5 consists of the transmitter low noise block converter LNB and transmit receive isolation assembly TRIA e 3 a E pu Y Figure 5 Radio assembly Chapter 2 Antenna parts and required tools 1035567 0001 Revision A 7 8 Trimast or other antenna The trimast is not part of the antenna kit It is shown here because mount it is the most commonly used mounting option for the 74 m antenna As shown in Figure 6 the trimast can be configured and manipulated in several ways to adapt it for mounting onto surfaces of various angles For other suitable mounting options see the DIRECWAY Antenna Site Preparation and Mount Installation Guide HNS 1035678 0001 Mast T
31. lector and through the feed arm to the LNB to achieve a configuration similar to that shown in Figure 30 Chapter 4 Cabling and connections 32 1035567 0001 Revision A Con necting the transmit This section explains how to connect the transmit and receive and receive cables cables to the radio assembly Transmit cable Connect the transmit cable to the transmitter as follows 1 From inside the building disconnect the IDU power supply 2 Go outside and connect the transmit cable marked with blue electrical tape to the transmitter connector marked FL as shown in Figure 31 Use a weatherproof connector Transmitter cable connector Figure 31 Connecting the transmit cable 3 Tighten the connection with a 7 16 in wrench 4 Secure drip loops and other points on the cable with cable ties 5 Back inside the building reconnect the IDU power supply Chapter 4 Cabling and connections 1035567 0001 RevisionA 99 34 Receive cable Connect the receive cable to the LNB as follows 1 Connect the receive cable marked with red tape to the LNB connector as illustrated in Figure 32 Receive F connector female Figure 32 Connecting the receive cable to the LNB 2 Tighten the cable connector with a 7 16 in wrench 3 Apply dielectric silicone grease to the connection 4 Secure the cable with cable ties Chapter 4 Cabling and connections 1035567 0001 Revision A Ground connection Figure 33 sho
32. mit cable connecting 33 routing 32 Transmit polarization shim 21 Transmit signal isolating 50 Transmitter connecting 33 Trimast 8 e Index 1035567 0001 Revision A
33. mper cable to connect to the OPI Chapter 5 Pointing the antenna 1035567 0001 Hevision A Prerequisites for The following are required for antenna pointing antenna poi nting e The antenna must be installed e The IDU must be installed e The transmit and receive cables must be connected to the IDU and ODU e The outdoor pointing interface OPI must be installed e The ODU and IDU must be grounded e You must have access to the installation software See Using the installation software on page 38 Chapter 5 Pointing the antenna 1035567 0001 RevisionA 41 Adjusting the antenna To point the antenna you make three adjustments e Azimuth Side to side adjustment e Elevation Adjustment up and down e Polarization Rotational adjustment These adjustments are illustrated in Figure 37 The corresponding mechanical adjustments on the antenna are explained in the sections that follow Negative Azimuth bow x Note When recording Qe we ye or using antenna pointing non Positive values you must pay MG ec attention to whether eee Pd values are positive o Z or negative os Azimuth Elevation LOW Elevation p Polarization Pei S po T0145010 i Antenna reflector Polarization front view Figure 37 Adjusting azimuth elevation and polarization Chapter 5 Pointing the antenna 42 1035567 0001 Revision A Poi
34. ngth Monitor the signal strength while tightening the clamp bolts in the following sequence a Tighten the top nut until the signal strength begins to degrade then back off until you have regained the peak signal b Tighten the bottom nut until the signal strength begins to degrade then back off until you have regained the peak signal Repeat steps a and b if necessary to peak the signal If you can fully tighten the top and bottom nuts without loss of signal then also tighten the middle nut and go to step 7 Skip step e If you cannot fully tighten the top and bottom nuts without loss of signal further elevation adjustment is necessary Go back to step 1 and begin the sequence again a0 c 7 While watching the signal strength number to ensure that it stays at maximum tighten the elevation nuts in the following sequence a Snug the left nut but do not completely tighten it b Snug the right nut but do not completely tighten it c Fully tighten the left nut torque to 12 ft Ibf d Fully tighten the right nut torque to 12 ft Ibf Adjusting polarization Polarization refers to rotation of the antenna as shown in Figure 44 and is measured in degrees from zero no rotation positive or negative Polarization is positive east of the satellite longitude and negative west of the satellite longitude Figure 44 illustrates how you adjust the antenna s polarization by rotating the antenna Polarization DL T
35. nting adjustments on Figures 38 and 39 show the antenna parts that are used to adjust Az Elcap antenna azimuth elevation and polarization he _ Antenna reflector Polarization scale Holes for installing fine elevation tool Elevation scale Figure 38 Pointing features on the Az el cap Polarization nut 1 of 4 Polarization scale Canister Y E TOP label Elevation nut Clamp bolt one on each side 1 of 3 Elevation scale Figure 39 Antenna adjustment locations Chapter 5 Pointing the antenna 1035567 0001 RevisionA 43 Checking the azimuth 1 Check to see if the elevation reference and polarization elevation and settings are still at their previously set values the values calculated by the installation software If they are not see polarization settings Installing the Az El cap onto the antenna on page 15 and follow the instructions to align the antenna to the correct values 2 If you have not already done so tighten the clamp nuts all the way then loosen them just enough to move the antenna reflector from side to side to adjust the azimuth The clamp bolts should be as snug as possible while still allowing the antenna reflector to be moved from side to side See Figure 39 3 Use a compass to determine the azimuth bearing specified by the installation software as follows a Rotate the antenna reflector in azimuth sideways until the reflector is pointed at the magneti
36. ocedures WARNING Only HNS certified installers may install or service DIRECWAY earth stations and components All HNS certified installers must expressly acknowledge the HNS requirements for DIRECWAY installations N DANGER 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 e Walk only on sound roof structures e Make sure the antenna assembly and installation surface are structurally sound so they can support all loads equipment weight ice and wind e Use appropriate safety equipment for example a lifeline depending on the work location e Follow all safety precautions from the manufacturers of all safety equipment and other equipment used e Perform as many procedures as possible on the ground j e Important safety information IV 1035567 0001 Revision A N DANGER e To avoid electric shock stay at least 20 ft from power lines e If any part of the antenna or mount assembly comes in contact with a power line call your local power company to remove it Do not try to remove it yourself Failure to heed these warnings could result in serious injury or death N WARNING e Do not work in high wind or rain or if a storm lightning or other adverse weather conditions are present or approaching e Do not attempt to assemble move or mount the antenna on a windy day Even a slight wind can c
37. ollow the directions in cap this section to assemble it You should be able to assemble it in about 2 5 min To assemble the AZ El cap 1 Place the revolving plate on a flat surface See Figure 8 Figure 8 Revolving plate 2 Place the polarization plate over the revolving plate 3 Use one hand to hold the two plates together Align the revolving plate so its four bolt holes are visible as shown in Figure 9 Figure 9 Aligning the revolving plate Chapter 3 Installing the radio and antenna assemblies 1035567 0001 Revision A 13 14 4 Place the Az El mechanism over the revolving plate so the bolt holes align 5 Install a bolt from underneath the revolving plate While holding it with one hand install the 7 16 in flat washer and nut See Figure 10 6 Repeat until all four bolts are installed Align bolt from underneath and install washer and nut E 3 UN Figure 10 Aligning the Az el cap bolts Chapter 3 Installing the radio and antenna assemblies 1035567 0001 Hevision A Installing the Az El cap Before you attach the Az El cap to the antenna you must set the onto the antenna antenna elevation and polarization As you set the elevation and polarization refer to Figure 11 Elevation nuts Clamp bolts one on each side 3 Elevation scale Canister TOP label Polarization scale Polarization nuts 4 Figure 11 Antenna adjustments for elevation and polarizat
38. onal Electrical Code published by the National Fire Protection Association Batterymarch Park Quincy MA 02269 Organization This manual is divided into the following chapters Chapter 1 Overview includes a summary of the installation steps and tells you where to find information about tasks related to antenna installation Chapter 2 Antenna parts and required tools describes the components and parts provided in the antenna kit Chapter 3 Installing the radio and antenna assemblies provides instructions for installing the antenna Chapter 4 Cabling and connections provides information about making connections to the radio assembly Chapter 5 Pointing the antenna explains how to point the antenna at the satellite connect the transmitter and acquire the satellite signal e About this document 1035567 0001 Revision A XV Revision record This section describes the revision history of this manual Revision Date of issue Scope 1 April 7 2004 Initial release A October 31 2005 Production release e About this document XVI 1035567 0001 Revision A Chapter 1 Overview Broadband satellite system components The DIRECWAY model AN4 074 DF 74 m antenna is used for Ku band consumer installations This chapter presents an overview of the DIRECWAY broadband satellite system a summary of the antenna installation steps and information about tasks related to antenna installation These
39. ose the receive signal and the test cannot continue because you are out of contact with the NOC You then have to go back to the receive pointing instructions Receive pointing on page 45 and perform that procedure again 2 Peak the elevation setting by making small adjustments to the elevation adjustment nuts on the fine elevation adjustment tool Do not turn the nuts more than one quarter of a turn at a time Tighten the two elevation nuts 4 If the antenna passes the manual test stop the test and run the automatic ACP test again If the antenna passes the automatic test it is pointed and ready to be registered W The following steps are necessary only if the antenna does not pass the manual ACP test after you adjust the elevation 1 Loosen the three clamp bolts just enough so you can change the azimuth 2 Stand behind the antenna Observe the signal strength while you make very small adjustments 1 16 in or less of Az El cap movement on the mast 3 Peak the azimuth to the highest possible signal strength value 4 Tighten the three clamp bolts 5 Run the automatic ACP test again If the antenna passes it is pointed and ready to be registered If the antenna did not pass the automatic ACP test repeat the very small polarization azimuth and elevation adjustments and ACP tests as many times as necessary until you have peaked the signal and the antenna passes the automatic ACP test Chapter 5 Pointing the ant
40. ot pointed properly the signal may be weak and errors may result during data transfers Antenna pointing is accomplished by first receive pointing the antenna and then isolating the transmit signal Receive pointing adjusts the antenna to obtain the best receive signal Isolating the transmit signal fine tunes the antenna alignment for the strongest possible signal received by the DIRECWAY Network Operations Center NOC Both processes are explained later in this chapter To point the antenna you go through cycles of making small adjustments to the antenna until you are satisfied you cannot get a stronger satellite signal When you have achieved the strongest possible signal you have peaked the signal You may achieve the strongest signal strength after just a few adjustments or you may find that several adjustments are needed Personnel requirements Pointing parameters Outdoor pointing interface By obtaining the strongest possible signal you ensure that the terminal can use all the system s capacity One person can point the antenna if an OPI is used Otherwise pointing is usually a two person task One person aims and adjusts the antenna while the other watches the signal strength display on the computer and relays the readings to the person at the antenna A portable telephone or walkie talkie is helpful for this Prior to antenna pointing you use the installation software to enter parameters such as longitude latitude
41. r behind the antenna and taking another compass reading Metal near the compass such as a car or even a belt buckle can give a false reading Point the front of the antenna reflector to the left of the estimated bearing to the satellite so the alignment mark on the Az El cap lines up with the right most pencil mark you made on the mast Repeat the steps beginning with step 1 in Adjusting azimuth on page 45 Peaking the signal After the satellite is detected peak the signal as follows Chapter 5 Pointing the antenna 1035567 0001 Hevision A 1 Mark the mast with a pencil so you can find the azimuth bearing again After detecting the satellite continue turning the antenna reflector a small amount in the same direction you were turning it when you began receiving the satellite signal Pause for 5 sec after each time you move the reflector Turn the reflector in this fashion until the signal strength values displayed by the installation software begin to decrease When the numbers begin to decrease slowly turn the reflector in the opposite direction until you regain the highest number that was previously achieved Achieving this maximum signal strength is called peaking the signal When you have peaked the azimuth tighten the three clamp nuts on the canister completely Adjusting elevation Figure 42 illustrates how you adjust the elevation by moving the antenna up and down Ls A Elevation
42. reate strong unexpected forces on the antenna surface e Important safety information 1035567 0001 Revision A V vi e Important safety information 1035567 0001 Revision A Z CAUTION Observe these precautions to avoid exposure to RF radiation a potential safety hazard The antenna must be installed in a location or manner 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 greater than a 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 in 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 less than a 30 elevation must be installed such that the lower lip of the antenna reflector is at least 5 ft 9 in above any surface upon which a person might be expected to stand and 3 ft 3 in from any opening such as a door or window in a building or adjacent structure The antenna must be mounted such that no object which could reasonably be expected to support a person is within 6 ft 7 in of the edges of a cylindrical space extending from the antenna reflector If the above distance requirements cannot be met the antenna must be mounted in a controlled area
43. st rotate the TRIA before you re attach the waveguide end so you can insert the shim alignment pins into the waveguide end plate See Figures 21 and 22 Figure 21 Direction of TRIA rotation for vertical polarization Chapter 3 Installing the radio and antenna assemblies 1035567 0001 Revision A 23 Figure 22 shows how the TRIA is positioned for horizontal transmit polarization compared to how it is positioned for vertical transmit polarization Horizontal polarization TRIA rotated for vertical polarization Figure 22 TRIA position for horizontal and vertical transmit polarization 6 Make sure the O ring shown in Figure 21 on page 23 is in place in the shim 7 With the TRIA correctly positioned rotated place the waveguide end plate against the shim 8 Insert and tighten the four Allen screws Now you are ready to install the radio assembly on the feed arm Chapter 3 Installing the radio and antenna assemblies 24 10355670001 Revision A Installing the radio If the radio assembly is already attached to the feed arm skip this assembly on the feed section and go to Connecting the feed arm to the antenna arm reflector on page 26 Follow these steps to install the radio assembly on the feed arm 1 Place the O ring in the circular depression in the square end of the feed arm See see Figure 23 hc Figure 23 Securing the O ring 2 Align the square end of the radio assembly with the square end of t
44. tion Guide HNS 1035678 0001 N CAUTION Before you install the antenna read all safety information in the section titled mportant safety information on page iii Chapter 3 Installing the radio and antenna assemblies 1035567 0001 RevisionA 11 12 Determining the pointing values Before proceeding use the installation software to determine the initial values to use for setting azimuth elevation and polarization Record these values and keep them handy for reference as you install and point the antenna In this manual installation software refers to e Satellite based commissioning SBC This is the preferred and most automated method for pointing the antenna You connect to a Web based auto commissioning system WebACS and follow the on screen instructions Or e WebSetup You log onto a DIRECWAY Web site and use the WebSetup installation software You may use installation software from either of these sources In each case the software configures the IDU calculates your exact location and uses the location and other information to help you point the antenna The installation software calculates the values you use to set azimuth elevation and polarization Follow the instructions in the IDU installation manual for accessing and using SBC or WebSetup Chapter 3 Installing the radio and antenna assemblies 1035567 0001 Revision A Assem bling the Az El The Az El cap is shipped un assembled F
45. topics are included in the following sections e Broadband satellite system components on page 1 e Antenna installation overview on page 3 e Tasks related to antenna installation on page 4 The 74 m antenna is a part of the DIRECWAY broadband satellite system which consists of the following major components e Indoor unit IDU e Antenna and radio assembly outdoor unit ODU e Cables for connecting the IDU to the antenna radio and the computer e Installation software including antenna pointing functions Chapter 1 Overview 1035567 0001 Revision A Figure 1 shows the 74 m antenna installed on a pole mount Radio not visible in optional shroud Antenna reflector Transmitter Feed arm Mast Figure 1 Installed 74 m antenna Chapter 1 Overview 2 1035567 0001 Revision A Antenna installation The antenna installation steps and related tasks are summarized overview below The steps in bold type are documented in this manual 1 10 11 12 13 14 Choose an installation site 2 Select a method for mounting the antenna 3 4 Install the IDU Install the antenna mount Note Install the IDU before installing the antenna so you can run the installation software to determine the pointing values azimuth elevation and polarization Use the installation software to determine the pointing values azimuth elevation and polarization Chapter 3 Installing the radio and ant
46. uth 1 8 in toward the center pencil mark mark 1 2 Let go of the antenna and count slowly to 5 while reading the signal strength value from the OPI Allow the IDU enough time to track and register the signal strength Note Make small adjustments never more than 1 8 in of azimuth as measured at the mast Wait 5 sec between adjustments to give the IDU enough time to lock onto the satellite signal 3 If you are receiving a signal and the signal strength has changed go to Peaking the signal on page 38 step 1 If no signal is present and the azimuth alignment mark has Chapter 5 Pointing the antenna 1035567 0001 RevisionA 49 46 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 Keep moving the antenna reflector a little at a time until you detect a signal or until you reach the limit to the right If there is no signal after the antenna reflector has been moved from mark 2 to mark 3 1 1 2 in there may be an error If there is no signal perform the following quick checks Check the coaxial cable connections at the LNB IDU and all the connections in between Make sure there are no obstructions such as trees blocking the signal Make sure you recorded and properly set the azimuth elevation and polarization values Verify the azimuth setting by moving 15 ft in front of o
47. veguide 4 total Figure 19 Shim location next to TRIA To replace the horizontal shim with a vertical shim follow these steps 1 Obtain a vertical transmit polarization shim kit HNS model VTX SHIM KIT P N 1033809 0001 Figure 20 on page 22 shows what a vertical shim looks like 2 Loosen and remove the four Allen screws that hold the shim in place See Figure 19 3 Separate the end of the waveguide from the shim Chapter 3 Installing the radio and antenna assemblies 1035567 0001 Revision A 21 Figure 20 illustrates the difference between the horizontal shim and vertical shim Note the positions of the alignment pins Vertical shim in place In this photograph the TRIA has not yet been rotated Alignment pins Horizontal shim Vertical shim Figure 20 Horizontal shim and vertical shim for transmit polarization 4 Remove the horizontal shim and O ring 5 Install the vertical shim and O ring in the same location Because of its shape and alignment pins on the transmit receive isolation assembly TRIA the vertical shim can only be installed in the position shown in Figure 20 upper right photo Note the position of the alignment pins Likewise the horizontal shim can only be installed in one position Chapter 3 Installing the radio and antenna assemblies 22 1035567 0001 Revision A Because of the shim s alignment pins you must rotate the TRIA 90 from its horizontal polarization position You mu
48. ws the location of the ground screw on the transmitter Ground the transmitter and mast For grounding procedures refer to your training best grounding practices and applicable parts of the NEC Transmit F connector female Ground screw Not used Figure 33 Ground screw on the transmitter Chapter 4 Cabling and connections 1035567 0001 Revision A 35 Chapter 4 Cabling and connections 36 1035567 0001 Revision A Chapter 5 Pointing the antenna This chapter explains how to point the antenna and connect the transmitter Topics include e Antenna pointing overview on page 38 e Prerequisites for antenna pointing on page 41 e Adjusting the antenna on page 42 Checking the azimuth elevation and polarization settings on page 44 Receive pointing on page 45 Isolating the transmit signal on page 50 Final steps on page 52 As you perform these procedures observe the following safety precautions N CAUTION e This device emits radio frequency energy when in transmit mode To avoid injury do not place head or other body parts between feed horn and antenna when system is operational Keep at least 2 ft away from the area between the feed horn and the reflector when the system is operational e Disconnect power from the IDU before performing maintenance or adding upgrades to any antenna components Chapter 5 Pointing the antenna 1035567 0001 RevisionA 37 38 Antenna pointing overview Using
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