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DirecTV A3-KaKu HD, Тренировка по установке, процесс и настройка

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DirecTV A3-KaKu HD Скачать руководство пользователя страница 30

Confidential & Proprietary

Aiming and Fine-tuning the ODU (cont)

• Fine-tuning the Azimuth (Cont.)

• Tighten the Azimuth lock down bolts.
• the current signal level should now be equal to or 

greater than what was recorded for coarse 
alignment.  A lower level would indicate a possible 
alignment problem and will require repeating the 
Fine-tune steps.

• Verify adequate signal levels are available for 

101°, 103°, 110°, and 119° using the signal meter 
in the H20 IRD.

– If they are low, repeat the Fine-tuning steps

Содержание A3-KaKu HD

Страница 1: ...Confidential Proprietary ...

Страница 2: ...deo and complete assessments 2 Hands on you will need Tools and equipment New Ka Ku Satellite Dish New Ka Ku 6x8 Multi switch if when available Signal meter such as a Acutrac PRO 22 or BirDog with new KaKu files installed www Birdog TV 2 NPRM or pole mount New H20 Receiver and Television 1 Have selected technicians rotate through groups mount and peak the Ka Ku ODU in designated area parking lot w...

Страница 3: ...y Objectives Train technicians on basic Ka technology Train technicians to successfully complete an A3 KaKu ODU installation and upgrade Train technicians to assemble KaKu ODU Train technicians on mounting options of KaKu ODU ...

Страница 4: ...ry Objectives cont Train technicians on ODU peaking methods including Dithering fine tuning Train technicians on how to install H20 HDTV IRD Train technicians on the use of the BBC B band converter for use with All H20 IRD s ...

Страница 5: ...8 3 and 18 8Ghz and between 19 7 and 20 2Ghz Ka band dishes are much smaller than C band dishes Ka band dishes vary from 2 to 5 in diameter Ka band satellites typically transmit with much more power than C band satellites The higher frequencies of Ka band are significantly more vulnerable to signal quality problems caused by rainfall known as rainfade ...

Страница 6: ...re high definition and ultimately standard channels What is MPEG4 MPEG4 is the most recent version of a standard for the digital representation of video audio and certain types of 3D information It processes detailed 3D representation for faces human bodies and general 3D scenes The 3D scene representation points to the VRML Virtual Reality Modeling Language standard as it s representation ...

Страница 7: ...nother satellite company will be operating two future Ka orbital slots that are very close spaced to our new 99 and 103 Ka slots If the DIRECTV Ka Ku antenna is not precisely aligned the other guys Ka orbital slots will interfere with DIRECTV Ka programming The other Ka satellites are not on line yet and incorrectly installed DIRECTV Ka Ku systems may not show up for some time ...

Страница 8: ...Confidential Proprietary New Mount Azimuth Fine Tune Elevation Fine Tune ...

Страница 9: ...s DIRECTV antennas The Ka Ku antenna requires over 10 times more alignment accuracy than previous DIRECTV ODUs Complete Ka and Ku alignment is performed using only the 101 and 119 Ku slots A Dithering method is used to precisely align the antenna by symmetrically detuning the antenna and finding identical signal levels either side of peak ...

Страница 10: ...Confidential Proprietary Review Questions What is Ka What is MPEG4 Why is a new mount needed ...

Страница 11: ...Confidential Proprietary Ka Ku ODU Assembly Assemble the Antenna on the Ground Why It s easier than on the roof You won t loose as many parts Less chance of damaging the ODU and LNB s ...

Страница 12: ...NB arm The 110 119 LNB has 3 sets of mounting holes for different regions see the region chart in the manual Preset AZ EL and Tilt according to customers Zip code found in the guided setup of the H20 IRD LNB s and dishes are NOT interchangeable between manufacturers at this time The LNB and arm are keyed to prevent mismatching ...

Страница 13: ...the Mast to the house ensuring that all 3 center holes will be secured into a 2 x4 stud or roof truss and use the 4 corner holes on every install Monopoles are used to provide additional support for the ODU Attach the ODU to the mast and house in one of the following ways ...

Страница 14: ... holes drilled Pole mounts require at least 150LB of concrete Pole should be 2 in diameter and at least 16 ga Pole should be 2 below ground and 4 above ground Pole should be modified so it will not spin cut bottom of pole at an angle or insert bolt through bottom Using the supplied bubble level level the mast and tighten all necessary bolts Failure to level the mast correctly will cause the peakin...

Страница 15: ...for later Azimuth alignment Run all necessary cables into the feed arm Assemble the LNB s using the provided hardware Refer to the included LNB Zone chart for correct settings for attaching the 110 and 119 LNB s to the 99 101 and 103 LNB s Zone 1 will have the 110 and 119 LNB s closest to the 99 101 and 103 LNB s Zone 3 will have the 110 and 119 LNB s furthest apart from the 99 101 and 103 LNB s Z...

Страница 16: ...Confidential Proprietary 110 119 LNB Zone Chart ...

Страница 17: ...1 7 Boston 01460 42 5 71 5 234 8 32 6 61 7 8 Dallas Fort Worth 75212 32 8 96 9 184 6 51 6 83 7 9 Washington DC 20117 39 0 77 7 224 0 38 8 64 0 10 Atlanta 30341 33 9 84 3 213 47 67 11 Houston 77024 29 8 95 5 188 1 54 7 80 5 12 Tampa 33567 27 9 82 1 219 8 51 3 58 5 13 Seattle 98272 47 9 121 9 133 6 31 4 107 9 14 Minneapolis 55340 45 1 93 6 191 7 37 5 82 7 15 Miami 33196 25 6 80 7 224 7 52 5 54 1 16 ...

Страница 18: ... 33 5 112 1 36 5 111 3 150 1 152 6 49 3 46 3 106 2 103 6 26 Cleveland 44281 41 1 81 7 216 0 38 5 69 2 27 Denver 80112 39 6 104 9 166 9 44 94 7 28 Orlando 32707 28 7 81 3 220 9 50 1 58 4 29 St Louis 63105 38 6 90 3 198 7 43 9 76 9 30 Indianapolis 46220 39 9 86 1 207 3 41 3 72 9 31 Raleigh 27520 35 6 78 5 223 4 42 3 61 9 32 Kansas City 64056 39 1 94 3 190 1 44 2 81 8 33 Milwaukee 53089 43 1 88 2 202...

Страница 19: ...ntenna around the mast in the Azimuth direction until a peak level is obtained and then lock down the mast clamp bolts Using a nut driver adjust the fine elevation screw for maximum signal level If the fine elevation screw runs out of range or is not centered in its range of movement loosen the elevation lock down screw and move the coarse elevation slightly to keep the bolt centered ...

Страница 20: ...Coarse Align the Azimuth and Elevation cont Record the Coarse signal level at this point for comparison during a later step After coarse alignment verify reception of 101 on the customer s IRD You may check channels 490 and 491 on any of the installed IRD s ...

Страница 21: ...Confidential Proprietary Review Questions Why is it necessary to course align the ODU What polarity must you peak 101 to ...

Страница 22: ...Fine tuning the Tilt Set the in line signal meter for 119 RHCP reception 13 volts with 22KHz tone Slowly rotate the dish left counter clockwise right clockwise around the tilt axis in order to peak the 119 signal then carefully tighten the Tilt lockdown nuts ...

Страница 23: ... loose With the Elevation having been coarse peaked previously now grasp the plastic Elevation readout dial and rotate until 0 zero is lined up with the indicator Be careful not to turn the Elevation fine adjustment bolt during this step Using a Nut Driver rotate the Elevation fine tune screw exactly 2 turns Counter Clockwise and record the level from the signal meter This level will be lower than...

Страница 24: ... from the last step roughly 4 7 turns The numbers displayed on the dial will not correspond directly to the total distance turned EXAMPLE If you stop on 6 you actually moved 4 increments clockwise past zero not 6 Record the number of turns Divide the number of turns just recorded by 2 Reset the dial to Zero then rotate the Elevation fine tune screw Counter Clockwise by the calculated amount Signal...

Страница 25: ...ary Aiming and Fine tuning the ODU Fine tuning the Azimuth The Azimuth fine tuning procedure uses identical signal readings either side of peak in order to arrive at precise alignment DO NOT DEVIATE FROM THE FOLLOWING STEPS ...

Страница 26: ...n bolts are slightly loosened so as to allow free movement of the dither mechanism Set the in line signal meter for 101 RHCP reception 13 volts with no 22KHz tone Unscrew and pull out the Dither lock pin and verify dish will move slightly side to side without binding Make sure to start with the azimuth dither pin centered ...

Страница 27: ...Confidential Proprietary Aiming and Fine tuning the ODU cont Make sure these bolts are loose during alignment Elevation Fine Tune Dither lock screw Azimuth Fine Tune ...

Страница 28: ...muth cont Move the dish fully to the Left against the dither stop and read the signal level This level will be lower than that obtained during coarse Azimuth peak Move the dish fully to the Right against the opposite dither stop and compare the signal level to the previous reading ...

Страница 29: ...r process until IDENTICAL Signal Levels are achieved for the Left and Right stops You may have to make several adjustments to achieve identical signal levels When signal levels are Exactly the same at the left and right dither stops then move the dish to the center of the dither range and replace the dither lock pin You may need to move the dish slightly side to side until the lock pin is fully en...

Страница 30: ...nal level should now be equal to or greater than what was recorded for coarse alignment A lower level would indicate a possible alignment problem and will require repeating the Fine tune steps Verify adequate signal levels are available for 101 103 110 and 119 using the signal meter in the H20 IRD If they are low repeat the Fine tuning steps ...

Страница 31: ...ount if threads bottom out and you keep turning the fine tune screws Strive for IDENTICAL levels between the left and right dither stops Give the meter enough time to stabilize the readings at each dither stop Move to the left and right dither stop by grasping the rear of the mount do not use the reflector ODU ...

Страница 32: ...Confidential Proprietary Basic Dither Peak Principle Hey hey over here Your Dither readings are not symmetrical Now your right on ...

Страница 33: ...Confidential Proprietary Things You Should Know about Fine Tuning and Dithering ...

Страница 34: ... Proprietary Review Questions What is Fine tuning What is Dithering Why is Dither alignment important After Fine tuning all settings should the signal be Greater Lesser or Equal to your initial Course signal level ...

Страница 35: ...sion BBC B Band Converter Ka LNB frequencies are between 250Mhz and 750Mhz H20 is unable to view these frequencies BBC up converts the B Band into a 1650 2150Mhz usable spectrum Must be used for all H20 IRD s and is included in the package ...

Страница 36: ...Confidential Proprietary BBC Installation In from ODU or Multi switch Satellite In BBC ...

Страница 37: ...Confidential Proprietary Review Questions What is a BBC Why must the BBC be used When do you need to install the BBC ...

Страница 38: ...ts for Ka HD programming Only the New H20 HDTV IRD will be compatible with the Ka A3 HD signals during the IRD guided setup be sure to choose the Ka Ku Dish selection No auto detect is required Legacy IRDs will continue to receive Ku signals ...

Страница 39: ...al Proprietary Review Questions Which IRD s are compatible with the new Ka frequencies Which Satellite slots can the D10 D11 see Can legacy IRD s be used And in what capacity Are any IRD s completely incompatible ...

Страница 40: ... NEC requirements 4 Connect IRDs to televisions 5 Connect BBC B band converter to necessary H20 IRD s being installed 6 Connect cables from ODU to multi switch if more than 4 lines are needed 7 Connect cables from multi switch to IRDs 8 Check signal strength on the receiver for 101 103 110 and 119 on the installed H20 IRD s built in signal meter 9 Check test channels 490 494 and 498 Macrovision fo...

Страница 41: ...g from 95º or 72 5º you must use the new wide band 6x8 Existing 4x8 and 6x8 are not compatible due to frequency range requirements If locals at 72 5 and or International programming at 95 are needed separate dishes for each of these two orbital slots must be installed with single lines from each additional ODU run into the Flex ports on the new 6x8 switch ...

Страница 42: ...Confidential Proprietary Ka Ku ODU with 4 or less lines ...

Страница 43: ...Confidential Proprietary Ka Ku ODU with 5 8 Lines needed ...

Страница 44: ...Confidential Proprietary Ka Ku ODU and 95 International ...

Страница 45: ...Confidential Proprietary Ka Ku ODU and 72 5 ...

Страница 46: ...Confidential Proprietary Ka Ku ODU with 95 International and 72 5 ...

Страница 47: ...ill allow for viewing of the Ka programming There are complete coordinates for aligning the Ka Ku ODU in the H20 IRD refer to list provided If customers are still in need of an over the air HD antenna a home run line must be installed Diplexing the OTA and or Cable Modem frequencies is no longer acceptable due to the B Band frequencies being used ...

Страница 48: ...rs requires more than 4 outputs the new 6x8 multi switch must be used the 4x8 is not compatible Each flex port on the 6x8 offer both 18v and 13v Only used for combination customers requiring international programming from a second ODU for 95 or 72 5 locals Must use first available Flex Port Be sure to terminate the second flex port Pole diameter is 2 O D Must use monopole for additional support of...

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