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Chapter 7 • Pointing the antenna

1037312-0001 Revision B

57

Chapter 7

Pointing the antenna

This chapter explains the antenna pointing procedure, a critical
part of the antenna installation process. If the antenna is not
properly pointed toward the HughesNet system satellite, system
performance will be degraded.

Topics in this chapter include:

•

Antenna pointing overview on page 58

•

Prerequisites for antenna pointing on page 59

•

Pointing tools on page 60

•

Adjusting the antenna on page 64

•

Setting coarse elevation on page 66

•

Fine elevation adjustment on page 67

•

Receive pointing on page 68

•

Isolating the transmit signal on page 73

•

Final steps on page 75

As you perform these procedures, observe the following safety
precautions:

CAUTION

Observe these precautions to avoid exposure to RF radiation, a
potential safety hazard:

•

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 3 ft away from the area between the feed horn
and the reflector when the system is operational.

•

Make sure the cylindrical space projecting outward from the
antenna reflector toward the satellite does not intersect or
come close to any inhabited areas.

•

Disconnect power from the IDU before performing
maintenance or adding upgrades to any antenna
components.

Failure to observe these cautions could result in injury to the
eyes or other personal injury.

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Summary of Contents for AN6-098P

Page 1: ...1037312 0001 Revision B October 21 2009 Installation Guide for 0 98 m Ku band Antenna Model AN6 098P ...

Page 2: ...etwork 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 HughesNet and Hughes Network Systems are trademarks ...

Page 3: ...ated to antenna installation 4 Selecting the installation site 4 Installing the antenna mount 4 Installing the IDU 5 Grounding 5 Approved cables 5 Chapter 2 Antenna parts and required tools 7 Antenna kit components 8 Related components 8 Two antenna kits for two radio types 8 Inspecting the antenna parts 9 Description of main components 10 Az El and reflector bracket assembly 10 Antenna reflector ...

Page 4: ...enna assembly onto the mast pipe 28 Chapter 4 Installing a J type radio assembly 31 Installing a shim for vertical transmit polarization 32 Installing the radio assembly 36 Attaching the upper mounting bracket 36 Attaching the feed horn and transition to the radio assembly 37 Mounting the radio assembly on the feed support arm 40 Chapter 5 Installing a cradle type radio assembly 43 Installing the ...

Page 5: ...na pointing 59 Pointing tools 60 DAPT 60 Installing the DAPT 61 Understanding the DAPT display 62 OPI 62 Installing the OPI 63 Adjusting the antenna 64 Adjustment locations on the antenna 65 Setting coarse elevation 66 Fine elevation adjustment 67 Receive pointing 68 Initial elevation setting 68 Setting the tilt angle 68 Setting the azimuth 70 If you cannot detect a signal 71 Peaking the azimuth s...

Page 6: ... Contents vi 1037312 0001 Revision B ...

Page 7: ...orrect position for installation 23 15 Mounting the reflector on the reflector bracket 24 16 Attaching support rods to the reflector 25 17 Attaching the support rods to the feed support arm 26 18 Attaching the feed support arm to the reflector rim 26 19 Tightening nuts on support rods and feed support arm 27 20 Completed antenna assembly without radio 27 21 Making sure the mast is plumb 28 22 Az E...

Page 8: ...nsmit and receive cable configurations 50 39 Transmit connector J type radio 53 40 Transmit connector cradle type radio 53 41 Receive connector J type radio 54 42 Receive connector cradle type radio 54 Chapter 7 43 DiSEqC Antenna Pointing Tool DAPT 60 44 Installing the DAPT 61 45 Outdoor Pointing Interface OPI 62 46 Installing the OPI 63 47 Adjusting azimuth elevation and tilt 64 48 Pointing adjus...

Page 9: ...mall hardware parts used in antenna kits for both radio types 17 3 Additional small hardware parts included in the antenna kit for the J type radio assembly 18 4 Tools required to install and point the antenna 19 5 Tool sizes matched to hardware sizes 20 Chapter 3 6 Torque specifications 22 ...

Page 10: ... Tables x 1037312 0001 Revision B ...

Page 11: ... personal injury or in some cases death as explained below Each of these signal words indicates the severity of the potential hazard Messages concerning property damage A NOTICE concerns property damage only DANGER DANGER indicates a potentially hazardous situation which if not avoided will result in death or serious injury WARNING WARNING indicates a potentially hazardous situation which if not a...

Page 12: ...e a specific type of hazard for example fire or electric shock If other hazard symbols are used in this document they are identified in this section Additional symbols This document uses the following hazard symbols Indicates a safety alert message that concerns a potential electric shock hazard Indicates a safety alert message concerning a potentially hazardous situation in which you could fall I...

Page 13: ...y on sound roof structures Make sure the antenna assembly and installation surface are structurally sound so that they can support all loads equipment weight ice and wind Use safety equipment for example a lifeline appropriate for the work location Follow all manufacturer safety precautions for all safety and other equipment used Perform as many procedures as possible on the ground DANGER To avoid...

Page 14: ...trong 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 ...

Page 15: ...pon 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 require...

Page 16: ...tallation in a commercial industrial or institutional environment must carry a Radiation Hazard Caution sign on the access door gate or permanently mounted access ladder within plain sight of anyone approaching the antenna from the front or sides of the reflector Failure to observe these cautions could result in injury to eyes or other personal injury Note Some installations may require additional...

Page 17: ...the antenna and supplemental information on tasks related to antenna installation These topics are included in the following sections Scope and audience on page 1 The model AN6 098P antenna on page 2 Antenna installation summary on page 3 Tasks related to antenna installation on page 4 Scope and audience This guide is written for qualified installers who are familiar with satellite antenna install...

Page 18: ...enna is connected to the IDU by an intra facility link IFL consisting of two cables a transmit cable and a receive cable The Hughes model AN6 098P 0 98 m antenna is designed for Ku band applications Figure 1 shows the antenna assembled with a radio assembly installed The main parts are labeled The antenna shown is not yet connected so no cables are present Figure 1 Hughes model AN6 098P 0 98 m sat...

Page 19: ...er 4 J type radio or Chapter 5 cradle type radio 10 Run cables between the IDU and ODU locations 11 Ground the antenna assembly 12 Connect cables to the ODU Chapter 6 13 Point the antenna Chapter 7 For the steps not shown in bold type see the following section Tasks related to antenna installation Follow all steps in the order they are presented Do not tighten any hardware until you are instructed...

Page 20: ...ossible As with any 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 adapt the installation instructions in this guide in accordance with local building codes Installing the antenna mount Before installing the antenna you must first install a suitable antenna mount Acceptable moun...

Page 21: ...mation 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 applicable parts of the National Electrical Code NEC Also see Chapter 6 Cabling and connections for the proper location for attaching the ground wire Approved cables For a list of ap...

Page 22: ...Chapter 1 Overview 6 1037312 0001 Revision B ...

Page 23: ...ter describes the parts provided in the model AN6 098P antenna kit It includes the following sections Antenna kit components on page 8 Radio assembly types on page 15 Small hardware parts lists on page 17 Tools on page 19 CAUTION Metal components may contain sharp edges Use care when un packing and handling antenna parts ...

Page 24: ...vailable in two configurations as listed in Table 1 In this guide the antenna kit is used to refer to either kit Each antenna kit consists of two boxes of parts as detailed in Figure 2 Most parts are common to both antenna kits The main parts that are different in the two kits are the feed support arm support rods and parts used to mount the radio assembly Before proceeding refer to Table 1 and ma...

Page 25: ...act the freight carrier If any parts appear to be missing or damaged but not as a result of handling in transit contact your dealer or distributor Figure 2 Shipping container contents main components T0172017 The feed support arm and feed rods in the two antenna kits for the J type or cradle type radio are not interchangeable Antenna kit 2 boxes Az El and reflector bracket assembly Feed horn Radio...

Page 26: ...mbly The Az El mount assembly and reflector bracket assembly are pre assembled for installation as a single unit as shown in Figure 3 The Az El mount assembly supports the antenna and is used to point the antenna at the satellite The reflector bracket supports the antenna reflector Figure 3 Az El and reflector bracket assembly pre assembled as one unit Reflector bracket Az El mount assembly Canist...

Page 27: ...arts and required tools 1037312 0001 Revision B 11 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 ...

Page 28: ...he feed support arm for the cradle type radio is stamped TG Other letters or numbers may appear with TG Figure 6 shows the two types of support rods for the two radio types The rods in the two antenna kits for each radio type are different lengths and are not interchangeable The support rods for the cradle type radio are stamped TG Other letters or numbers may appear with TG Figure 5 Feed support ...

Page 29: ... factory During assembly you attach the transition to the radio assembly See Chapter 3 Assembling the antenna for more information The antenna kit for the cradle type radio does not include a waveguide transition because the feed horn attaches directly to the cradle type radio assembly Figure 7 Feed horn and waveguide transition NOTICE Do not remove the protective packing material from the feed ho...

Page 30: ... on the feed support arm Radio mounting brackets for J type radio only The antenna kit for the J type radio assembly only includes two mounting brackets Figure 9 that are used to secure the radio assembly to the feed support arm as illustrated in Figure 10 on page 15 Figure 8 Radio assembly mounting adapter Figure 9 Radio assembly mounting brackets and adapter Upper bracket Lower bracket ...

Page 31: ...use its waveguide is shaped something like the letter J J type refers to the overall design of the radio therefore two radios with different model numbers may both be J type radios Vertical shim kit if required A vertical transmit shim kit may be required for the J type radio assembly only If the installation reference sheet states that vertical transmit polarization is required you will need to o...

Page 32: ...ey can be rotated similar to the movement of a cradle to set the polarization of the feed horn The arrows in Figure 13 indicate how the radio assembly can be rotated Cradle type refers to the overall design of the radio therefore two radios with different model numbers may both be cradle type radios Figure 12 Cradle type radio assembly shown with mounting adapter Figure 13 Cradle like rotation of ...

Page 33: ...r 3 Assembling the antenna 20 1 inch hex bolts 3 20 2 inch hex bolt 1 inch flat washers 8 inch lock washers 4 inch hex nuts 4 For mounting the radio assembly both types 0 9 inch inside diameter O ring 1 These parts are used for both radio assemblies to Attach the feed horn Mount the radio assembly The hardware for each task is specified in Chapter 4 Installing a J type radio assembly Chapter 5 Ins...

Page 34: ...he J type radio assembly Part Quantity Comments 1 inch inside diameter O ring 1 These parts are used to attach the Waveguide transition to the radio assembly Upper mounting bracket to the transmitter Upper and lower mounting brackets to each other The hardware for each task is specified in Chapter 4 Installing a J type radio assembly M4 x 12 mm socket head cap screws 4 M4 lock washers 4 5 16 18 1 ...

Page 35: ...s included in the antenna kit Long shaft hexagonal ball driver 3 mm For socket head cap screws Allen screws with a 3 mm hexagonal socket Driver shaft should be at least 5 inches long Recommended for attaching or removing the J type radio assembly to or from the waveguide transition A short arm hex key is provided with the screws but the long shaft ball driver is much easier The long shaft ball dri...

Page 36: ... B Table 5 specifies the correct tool size for each hardware size included in the antenna kit Table 5 Tool sizes matched to hardware sizes Hardware size Tool size inch 7 16 inch 5 16 inch inch 6 32 socket head cap screw 7 64 inch hex key M4 x 20 mm screw M7 key wrench ...

Page 37: ...ntenna on page 22 Installing the antenna assembly onto the mast pipe on page 28 Attaching the reflector on page 23 Installing the feed support arm on page 25 Determining the pointing values Satellite based commissioning SBC is an automated web based method for pointing the antenna SBC configures the IDU calculates its exact location and uses the location and other information to help you point the...

Page 38: ...t have an outside diameter of 2 3 8 inches 2 375 inches Sequence of steps When you assemble the antenna follow the instructions in this chapter in the order they are presented Tightening hardware Do not tighten any nuts or other hardware until you are instructed to do so See also the next item Torque Torque To ensure successful installation of the antenna you must tighten all nuts and socket head ...

Page 39: ...or attaching support rod Hole for attaching support rod Note To make it easier to position the reflector and insert the screws steps 2 and 3 you can adjust the elevation of the Az El and reflector bracket assembly beyond the 80 mark on the elevation scale so the surface of the reflector bracket that attaches to the reflector is nearly horizontal Then you can lay the reflector on the bracket with t...

Page 40: ...wer holes on the reflector bracket and into the lower reflector holes 6 Tighten each screw a little then move on to the next screw 7 Use a torque wrench to tighten the screws to 10 ft lb force maximum Figure 15 Mounting the reflector on the reflector bracket Mounting holes arrows on back of reflector Reflector attached to bracket Arrows above point to mounting screws One screw indicated by the gra...

Page 41: ...ector When both support rods are correctly installed their lower ends are just a few inches apart 2 Tighten each nut just enough to keep the hardware in place Note If you are installing an antenna that will use a cradle type radio assembly make sure the feed support arm and support rods are stamped TG Other letters or numbers may appear with TG If these parts are not stamped TG they are the wrong ...

Page 42: ...ed support arm to the rim of the reflector as shown in Figure 18 4 Tighten the nut just enough to keep the hardware in place Figure 17 Attaching the support rods to the feed support arm T0172007 20 x 2 inch hex bolt inch flat washer inch flat washer inch lock washer inch hex nut Support rod Support rod Feed support arm Detail Support rod ends attached to feed support arm in front of reflector Figu...

Page 43: ...ort arm indicated by the white arrow in Figure 19 The antenna is now assembled as shown in Figure 20 and ready for installation of the radio assembly If you are installing a J type radio go to Chapter 4 Installing a J type radio assembly on page 31 If you are installing a cradle type radio go to Chapter 5 Installing a cradle type radio assembly on page 43 Figure 19 Tightening nuts on support rods ...

Page 44: ...he canister of the Az El and reflector bracket assembly down onto the mast Figure 22 shows the Az El and reflector bracket assembly on the mast Note The mast must be plumb The antenna assembly cannot be adjusted to correct for a mast that is not plumb Figure 21 Making sure the mast is plumb T0172005 Top view To make sure the mast is plumb check with the level in two positions at right angles to ea...

Page 45: ...e antenna pointing procedure See Setting coarse elevation on page 66 4 Rotate the Az El and reflector bracket assembly until the reflector side is oriented in the general direction of the satellite If necessary loosen the canister nuts just enough to allow the assembly to rotate 5 Snug the three canister nuts just enough to prevent the assembly from rotating Do not tighten the nuts at this time Fi...

Page 46: ...Chapter 3 Assembling the antenna 30 1037312 0001 Revision B ...

Page 47: ...ssembly This chapter includes Installing a shim for vertical transmit polarization on page 32 Installing the radio assembly on page 36 NOTICE Do not remove the protective packing material from the feed horn until installation of the radio assembly is complete Do not remove the transparent moisture seal on the small end of the feed horn However if the seal is damaged wrinkled or loose remove it Be ...

Page 48: ... shim Figure 23 shows where the shim is located and shows three of the four Allen screws that hold the shim in place To replace the horizontal shim with a vertical shim follow these steps 1 Obtain a vertical transmit polarization shim kit Hughes model VTX SHIM KIT P N 1033809 0001 Figure 24 on page 33 shows what a vertical shim looks like 2 Loosen and remove the four Allen screws that hold the shi...

Page 49: ...him and O ring Figure 24 Horizontal shim and vertical shim for transmit polarization TRIA Horizontal shim in place Vertical shim in place In this photograph the TRIA has not yet been rotated Alignment pins O ring Horizontal shim Vertical shim Alignment pins X here identifies horizontal shim This X is visible when the parts are assembled mark here identifies vertical shim This mark is visible when ...

Page 50: ...t pins Likewise the horizontal shim can only be installed in one position 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 attach the waveguide end so you can insert the shim alignment pins into the waveguide end plate See Figures 25 and 26 Figure 26 shows how the TRIA is positioned for horizontal tran...

Page 51: ...ce 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 You can now install the radio assembly Figure 26 TRIA position for horizontal and vertical transmit polarization Horizontal polarization TRIA rotated for vertical polarization TRIA TRIA ...

Page 52: ...ttach the upper mounting bracket to the transmitter 1 Place the upper mounting bracket onto the transmitter in the position shown in Figure 27 Align the two bolt holes in the bracket with the holes in the transmitter 2 Secure the bracket to the transmitter with two 5 16 18 1 inch hex bolts lock washers and flat washers 3 Tighten the bolts Figure 27 Attaching the upper mounting bracket Mounting bra...

Page 53: ...isolation assembly or TRIA 1 Apply silicone grease to the O ring groove in the waveguide transition See Figure 29 The silicone grease is provided in a small plastic capsule 2 Place the O ring 1 inch inside diameter in the O ring groove in the square end of the waveguide transition Figure 28 Feed horn with waveguide transition attached O ring groove Waveguide transition Note The O ring and small ha...

Page 54: ... Attach the square end of the waveguide transition to the TRIA using the provided M4 12 mm socket head cap screws and M4 lock washers with teeth on the inner edges See Figure 30 Insert the screws in the direction indicated by the white arrows in Figure 30 Make sure the O ring remains in the O ring groove 5 Use a long shaft 3 mm ball driver to tighten the M4 cap screws Figure 30 Attaching the waveg...

Page 55: ...neck of the feed horn as shown in Figure 31 7 Insert two 20 1 inch hex bolts with lock washers one on each side of the clamp Make sure the packing material is out of the way so it will not get stuck under the clamp 8 Tighten the bolts alternately a little at a time Figure 31 Securing the feed horn clamp arrow ...

Page 56: ... of the feed support arm Two of these holes are oval slots Use the round hole and oval slot closest to the reflector to mount the radio See Figure 32 2 Insert two 5 16 18 2 5 inch carriage bolts from above one into each of the two mounting holes 3 From below place a 5 16 inch flat washer lock washer and hex nut on each bolt 4 Tighten the nuts Figure 32 Attaching the radio assembly to the feed supp...

Page 57: ...ounting holes on the upper and lower mounting brackets 3 Insert a 20 0 75 inch carriage bolt through each of the four mounting holes 4 From below place a inch flat washer lock washer and hex nut on each bolt 5 Tighten the four bolts 6 Remove the protective packing material from the feed horn This completes installation of the radio assembly Figure 33 Attaching the radio assembly to the feed suppor...

Page 58: ...Chapter 4 Installing a J type radio assembly 42 1037312 0001 Revision B ...

Page 59: ...g a J type radio assembly go to Chapter 4 Installing a J type radio assembly on page 31 This chapter includes Installing the radio assembly on page 44 Setting polarization for the cradle type radio on page 47 NOTICE Do not remove the protective packing material from the feed horn until installation of the radio assembly is complete Be careful not to damage the feed horn window Do not touch the pla...

Page 60: ...feed horn To attach the feed horn to the radio assembly refer to Figures 34 and 35 and follow steps 1 through 4 in this section Figure 34 Attaching the feed horn and radio assembly NOTICE Do not remove the transparent moisture seal on the small end of the feed horn However if the seal is damaged wrinkled or loose remove it Do not remove the protective packing material from the feed horn until you ...

Page 61: ...e the O ring remains in the O ring groove 3 Insert the six socket head cap screws through the flange on the small end of the feed horn and into the matching flange on the radio assembly See Figure 34 4 Tighten the screws Note The O ring is shipped in a bag that contains seven socket head cap screws for attaching the feed horn Six screws are required one is an extra part Figure 35 O ring in groove ...

Page 62: ... surface of the feed support arm Use the oval slot at the end of the arm and the second hole from the bend in the arm as shown in Figure 36 3 From below insert two 5 16 18 2 25 inch hex bolts using a 5 16 inch lock washer and flat washer on each bolt through the feed support arm adapter and base 4 Tighten the bolts securely 5 Remove the protective packing material from the feed horn Figure 36 Moun...

Page 63: ...izontal uplink vertical downlink 1 Multiply the SBC initial value by 1 then offset the result by 90 as follows If the SBC initial value is positive add 90 If the SBC initial value is negative subtract 90 Example 1 positive initial value of 41 41 1 41 Add 90 41 90 49 Radio polarization setting 49 Example 2 negative initial value of 41 41 1 41 Subtract 90 41 90 49 Radio polarization setting 49 2 Mak...

Page 64: ...scale See Figure 37 3 Set the polarization to the calculated setting by rotating the radio and using the polarization scales on the circular brackets Plus and minus signs at the top of each scale indicate positive or negative values Make sure you read the correct scale 4 Tighten the two screws on the circular bracket This completes installation of the radio assembly Figure 37 Rear circular bracket...

Page 65: ...ing requirements For a list of approved coaxial cable types for the IFL between the antenna and the IDU see the Hughes FSB IFL Cable Approved List with lengths for DW7x00 DW60xx and DW40xx Domestic Installations FSB_060316_01 This FSB lists the maximum cable length for each approved cable type for all relevant radio types Because each installation site has unique requirements you must use your own...

Page 66: ...cessary connections 2 Route the transmit cable over the Az El mount and down behind the reflector to the rear of the transmitter in a configuration similar to that shown in Figure 38 Note Be careful not to exceed the minimum bending radius specified by the cable manufacturer Figure 38 Transmit and receive cable configurations T0172016 Transmitter Transmit cable marked with BLUE tape Receive cable ...

Page 67: ...bly down behind the reflector and along the feed support arm to the TRIA in a configuration similar to that shown in Figure 38 above Be careful not to exceed the minimum bending radius specified by the cable manufacturer 6 For the receive cable leave a 10 ft service loop secured to the mast Az El mount assembly or reflector bracket Do not leave the service loop lying on the roof or other mounting ...

Page 68: ...connector location for the J type radio assembly and Figure 40 shows the connector location for the cradle type radio assembly In both cases the connector is a female F connector 4 Use a torque wrench to tighten the cable connector to 22 inch lb Note You should protect all outdoor cable connections with dielectric grease and weatherproofing tape However because the antenna pointing procedure requi...

Page 69: ...Chapter 6 Cabling and connections 1037312 0001 Revision B 53 5 If necessary secure the cable with cable ties Figure 39 Transmit connector J type radio Figure 40 Transmit connector cradle type radio ...

Page 70: ... with red electrical tape with dielectric grease 3 Connect the receive cable to the receive connector on the LNB Figure 41 shows the receive connector location on the J type radio assembly and Figure 42 shows the connector location on the cradle type radio assembly In both cases the connector is a female F connector Figure 41 Receive connector J type radio Figure 42 Receive connector cradle type r...

Page 71: ...e IDU in accordance with the instructions in the IDU installation guide Grounding Ground the antenna as instructed in the documents listed in Grounding on page 5 Use of the ground screw on the radio assembly is optional The radio is grounded through the shield in the coaxial cable and the ground block NOTICE Coaxial cables and connectors can corrode if exposed to moisture Use only compression type...

Page 72: ...Chapter 6 Cabling and connections 56 1037312 0001 Revision B ...

Page 73: ...inal steps on page 75 As you perform these procedures observe the following safety precautions CAUTION Observe these precautions to avoid exposure to RF radiation a potential safety hazard 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 3 ft away from the area...

Page 74: ... the antenna until you are satisfied that you have obtained the strongest possible signal When you have achieved the strongest possible signal you have peaked the signal Using the installation software The exact pointing procedure depends on the installation software used whether SBC or WebSetup For a description of SBC and WebSetup see Determining the pointing values on page 21 The installation s...

Page 75: ... use a DAPT for pointing only one person is required When two people are needed a cell phone or walkie talkie can be very helpful Pointing parameters Prior to antenna pointing you must use the installation software to enter pointing parameters such as proper longitude latitude and tilt angle Alternatively you can enter the local ZIP code and let the software calculate these values for you Prerequi...

Page 76: ...ting tool DAPT Outdoor pointing interface OPI Both devices display values that indicate signal strength during antenna pointing eliminating the need for a laptop computer at the antenna installation site DAPT The DAPT Hughes P N 1501471 0002 is a digital satellite equipment control DiSEqC tool It has two connectors a large back lit display and three buttons as shown in Figure 43 For Ku band antenn...

Page 77: ...e antenna so it can be easily read during pointing Install the DAPT as follows 1 Make sure the IDU is powered ON 2 Make sure the transmit cable is connected between the radio transmitter IFL connector and the IDU SAT OUT connector 3 Disconnect the receive cable from the low noise block converter LNB on the radio 4 Use the jumper cables to connect the DAPT and filter inline between the IDU and the ...

Page 78: ...ance button 3 the display changes from IFL cable voltage to COMM Startup and then automatically to Mode and Value The mode is either 0 or 2 0 Receive pointing 2 Automatic cross pol ACP manual or automatic Manual The value is dynamic it changes constantly Automatic The value is static it does not change You cannot change the mode from the DAPT you can only change modes through the laptop In all mod...

Page 79: ... Make sure the IDU is powered ON 2 Make sure the transmit cable is connected between the radio transmitter IFL connector and the IDU SAT OUT connector 3 Disconnect the receive cable from the LNB on the radio 4 Use the jumper cables to connect the OPI and filter inline between the IDU and LNB exactly as shown in Figure 46 Important The OPI will not work unless it is enabled on the appropriate scree...

Page 80: ...adjustments to the position of the antenna reflector Elevation Adjustment up and down Tilt angle Rotational adjustment Azimuth Side to side adjustment These adjustments are illustrated in Figure 47 The corresponding mechanical adjustments on the antenna are shown in Figure 48 Figure 47 Adjusting azimuth elevation and tilt ...

Page 81: ... enough to prevent movement of the antenna reflector When you are done pointing you fully tighten all lockdown nuts and bolts Figure 48 Pointing adjustments on the antenna elevation tilt angle and azimuth Note The elevation lockdown hardware shown in Figure 48 may be two nuts or two bolts one on each side of the Az El assembly Canister nuts 3 Loosen to adjust azimuth Tilt lockdown nuts 4 Elevation...

Page 82: ...orward and backward 2 Loosen the two elevation lockdown bolts indicated in Figure 49 a little at a time until you can rotate the antenna reflector forward and backward to adjust the elevation 3 Set the elevation to the value given by the installation software NOTICE To avoid damage to the antenna reflector handle it with care Do not use the reflector to rotate the antenna Figure 49 Setting coarse ...

Page 83: ...are loose enough to allow the reflector to move as indicated by the arrow in Figure 50 2 While watching the signal strength display adjust the fine elevation adjustment nuts Figure 50 to achieve maximum signal strength a Move the top nut to allow movement then make adjustments with the bottom nut b Adjust by turning the bottom nut a few turns clockwise and counterclockwise until you peak the signa...

Page 84: ...ady done so follow the instructions outlined in Setting coarse elevation on page 66 Setting the tilt angle Tilt angle refers to the rotation of the antenna reflector as shown in Figure 47 on page 64 and is measured in degrees from zero no rotation either positive or negative The tilt angle is positive when east of the satellite longitude and negative when west of the satellite longitude For antenn...

Page 85: ...e tilt scale shown in Figure 51 J type radio Set the antenna tilt angle to the initial value given by the installation software Cradle type radio Set the antenna tilt angle to 0 then see Setting polarization for the cradle type radio on page 47 NOTICE To avoid damage to the antenna reflector handle it with care Do not use the reflector to rotate the antenna Figure 51 Tilt adjustment on the antenna...

Page 86: ...around the mast c Loosen the top nut incrementally until you can rotate the Az El assembly by holding and moving it 3 Stand behind the antenna grasp the antenna reflector bracket not the reflector and rotate the antenna assembly about the mast until the reflector is pointed in the approximate azimuth heading 4 Adjust the azimuth to the right about 1 8 inch 5 Let go of the reflector bracket and cou...

Page 87: ...re may be an error If there is no signal perform the following quick checks 1 Check the coaxial cable connections at the LNB IDU and all the connections in between 2 Make sure there are no obstructions such as trees blocking the signal 3 Make sure you recorded and properly set the azimuth elevation and polarization values 4 Verify the azimuth setting by moving 15 ft in front of or behind the anten...

Page 88: ...llation software begin to decrease 4 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 Make a note of the peaked signal strength for reference as you complete the pointing process 5 When you have peaked the azimuth snug down the t...

Page 89: ... in small increments if necessary until it passes both the manual and automatic ACP tests The instructions provided in the following sections are general instructions only The installation software screens initiates the tests and walks you through the actual procedures Manual ACP test To run a manual ACP test 1 Lock down all antenna adjustment bolts 2 Initiate the manual installation software ACP ...

Page 90: ...c ACP test and maintains signal strength within 3 points on the signal strength scale it is pointed and ready to be registered If the antenna passes the automatic ACP test but the signal strength drops more than 3 points after the test you must repeat the fine adjustments for azimuth and elevation 1 Repeat the fine adjustments for both azimuth and elevation to maximize the signal strength 2 Repeat...

Page 91: ...diation Hazard Caution label is present legible and visible on the feed arm and on the back of the antenna reflector 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...

Page 92: ...Chapter 7 Pointing the antenna 76 1037312 0001 Revision B ...

Page 93: ... control F ft Foot ft lb Foot pound H hr Hour I IDU Indoor unit IFL Intra facility link inch lb Inch pound L LCD Liquid crystal diode LNB low noise block converter LOS Line of sight M mm Millimeter N NEC National Electrical Code NOC Network Operations Center O ODU Outdoor unit OPI Outdoor pointing interface P P N Part number S SBC Satellite based commissioning sec Second T TRIA Transmit receive is...

Page 94: ... Acronyms and abbreviations 78 1037312 0001 Revision B ...

Page 95: ...length 5 receive cable 54 routing at the ODU 50 service loop 51 transmit cable 52 Connecting cables to the radio assembly 52 receive cable 54 transmit cable 52 Connectors 49 receive 54 transmit 53 Cradle type radio assembly described 16 installing 43 polarization calculating 47 setting 48 D DAPT description 60 displayed values 62 installing 61 removing 75 E Elevation coarse adjustment 66 fine adju...

Page 96: ...dio 40 O OPI description 62 installing 63 O ring 45 installing 37 45 P Parts list main components 8 small hardware parts 17 18 Peaking the signal 58 72 Pointing values 22 Pointing See Antenna pointing Polarization cradle type radio 47 shim for vertical or horizontal transmit polarization 32 R Radio assembly connecting cables 52 cradle type described 16 installing 43 mounting on feed support arm 46...

Page 97: ... 4 Tilt adjusting 68 Tool sizes matched to hardware sizes 20 Tools needed 19 Torque 22 maximum values 22 Transmit cable connecting 52 routing 50 Transmit polarization shim 32 Transmit signal isolating 73 Transmitter connecting 52 U Unpacking the antenna 9 V Vertical shim kit 15 32 W Waveguide transition 13 37 ...

Page 98: ... Index 82 1037312 0001 Revision B ...

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