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Now you must place the level on the back of the dish where it is exactly parallel to the pointing direction of the dish. When the angle is displayed on the level, consult the list I have provided and set the declination angle. The declination angle is set by setting the dish a total number (In list provided) of degrees more than the polar mount angle. (Because I am in Melbourne, Australia, my declination-offset angle is precisely 5.30 degrees because my latitude is 37.4900S) Make sure you know your site latitude before you start the calculations. (If you have no back plate in which to rest the level against, just use the front rim of the dish, it's the same thing). Once you have set the angle, you are now ready to set the direction. (In using this technique, you must first be familiar with at least one satellite in your area. From Melbourne, I prefer AsiaSat 2 or for New Zealanders, Palapa C2 looks good, but where ever you are in the world just pick one satellite that has a strong signal and is http://www.TELE-satellite.com between the horizon and North, or South if you are in the northern hemisphere. You would have previously recorded an angle setting for either satellite with the digital level so you know exactly at what angle the dish must be in, in order to lock on to the satellite correctly. If you have not done so, find the signal of your preferred starting point satellite and peak it up the way you normally would. Then get the digital level and rest it either on the back plate of the dish, which has to be perfectly parallel to the front of the dish, and then record the degree setting on the display). In this demo I am using AsiaSat 2 for the starting point. At my latitude I know that AsiaSat 2, when the level is against the back of the dish, or in the front, in the same way described previously. It is at an angle of 63.0 degrees. So actuate the dish either east or west, depending on what satellite you would like to use as the starting point, or in this situation AsiaSat 2, and then stop when the angle on the level shows exactly 63.0 Degrees. (Depending on how you calibrate the digital level, there can be variations of about .3 degrees compared to my example). Now swing the whole dish with the mount into the direction of AsiaSat 2's signal and when the spectrum shows up at its peak, stop. Gently, tighten the mount nuts and bolts a little more so that it's hard to swing the mount around but still manoeuvrable. Then place your hand at the bottom of the dish and gently push upwards. If there is a decrease in signal strength, push downwards. If there is still a decrease in signal strength place your hands on the side of the dish and gently push the dish to the left. If your signal decreases push the dish to the right. If the signal decreased in all directions, and obviously after you released your grip the signal peaked, you are dead on track. If at any point where you have pushed the dish it had an increase in signal strength, this means you are not at the correct position & therefore you must actuate the dish in whichever direction you have the increase in signal. If the increase is in the up or down direction (Elevation), just spin the dish mount a little and actuate in the appropriate direction until you get a perfect signal. NEVER alter the Polar Elevation or Declination settings. (Although if you are tracking with a Ku- Band system, it is advised to test the accuracy before packing up outside so you might need to nudge only the elevation nuts just a little if you are not 100% on target. When all is locked on perfectly to the satellite, tighten the mount nuts and bolts so that the mount won't move any more. The good thing about this method is that once you have locked on to the first satellite, if all angles are correct, you have finished working on the dish. Now you can now go indoors and program your receiver/positioner to track all satellites. I have even tried this method on up to a 4.5-Meter dish with C/Ku-Band capability and it has worked well. If you are uncertain that you are on track, before disconnecting your meter, actuate the dish so you pass all satellites. Each time you lock on to a satellite, stop, and push up, down, left, right to see if you are spot on. *** If you are using dual tracking, set the Polar elevation setting with the actuator arm about half way extended. This way you have an equal amount of play for north and south tracking. This also allows you to use the North/South actuator at a minimum as possible if you want to see the rest of the satellites in the area. Eg. Keep the actuator at the set limit of polar elevation, (ie 51.8 Degrees), and only when you need to track inclined satellites, the North and South elevation is actuated. When going back to tracking the normal Geostationary satellites (Not inclined) return to the setting you had recorded earlier from your reed switch sensor reading on the display which is equivalent to the degrees setting specified in the table provided ***. HELP: 203
204 If you are having trouble with the last phase of settings, try this guide to help you peak signal WITHOUT altering Declination or Elevation settings. To have a better understanding, I am using my situation in Melbourne as a reference. On the compass reading, AsiaSat 2 is about 300 Degrees. It's around about half way between the horizon and north on the lefthand side (West). 1) If you are pushing the dish upwards and there is an increase in signal strength then you must. · Actuate the dish a touch to the right and then swing the mount, with the dish, a touch to the left. 2) If you are pushing the dish downwards and there is an increase in signal strength then you must. · Actuate the dish a touch to the left and then swing the mount, with the dish, to the right. If you have trouble understanding the declination settings, here is a small formula I thought up to help those who have problems in understanding this step. RDA = FMA + DS Where; RDA = Rear Dish Angle FMA = Front Mount Angle DS = Declination Setting For example: If my site latitude was at 28.00°, then I follow the table and it says that the Declination setting must be at 4.10°. Now I have to measure the angle of the front of the mount & say it's 45° Now I can calculate RDA = 45(FMA) + 4.10(DS) RDA = 45 + 4.10 RDA = 49.10° Site Polar Declination Latitude Elevation Angle Offset Angle 0.00 90.00 0.00 0.50 89.49 0.08 1.00 88.97 0.15 1.50 88.46 0.23 2.00 87.95 0.31 2.50 87.44 0.38 3.00 86.92 0.46 3.50 86.41 0.54 4.00 85.90 0.61 4.50 85.39 0.69 5.00 84.87 0.76 5.50 84.36 0.84 6.00 83.85 0.92 6.50 83.34 0.99 7.00 82.83 1.07 7.50 82.31 1.14 8.00 81.80 1.22 8.50 81.29 1.30 9.00 80.78 1.37 9.50 80.27 1.45 10.00 79.75 1.52 10.50 79.24 1.60 11.00 78.73 1.67 11.50 78.22 1.75 12.00 77.71 1.82 12.50 77.20 1.90 13.00 76.68 1.97 13.50 76.17 2.04 14.00 75.66 2.12 14.50 75.15 2.19 15.00 74.64 2.27 15.50 74.13 2.34 16.00 73.62 2.41 16.50 73.11 2.49 17.00 72.60 2.56 17.50 72.09 2.63 18.00 71.58 2.70 18.50 71.07 2.78 19.00 70.56 2.85 19.50 70.05 2.92 20.00 69.54 2.99 20.50 69.03 3.06 21.00 68.52 3.13 21.50 68.01 3.21 22.00 67.50 3.28 22.50 67.00 3.35 23.00 66.49 3.42 23.50 65.98 3.49 24.00 65.47 3.55 24.50 64.96 3.62 25.00 64.46 3.69 25.50 63.95 3.76 26.00 63.44 3.83 26.50 62.93 3.90 27.00 62.43 3.96 27.50 61.92 4.03 28.00 61.41 4.10 28.50 60.91 4.17 29.00 60.40 4.23 29.50 59.89 4.30 30.00 59.39 4.36 30.50 58.88 4.43 31.00 58.38 4.49 31.50 57.87 4.56 32.00 57.37 4.62 32.50 56.86 4.68 33.00 56.36 4.75 33.50 55.85 4.81 34.00 55.35 4.87 34.50 54.84 4.94 35.00 54.34 5.00 35.50 53.84 5.06 36.00 53.33 5.12 36.50 52.83 5.18 37.00 52.33 5.24 37.50 51.83 5.30 38.00 51.32 5.36 38.50 50.82 5.42 39.00 50.32 5.48 39.50 49.82 5.53 40.00 49.31 5.59 40.50 48.81 5.65 Now I place the level on the rear of the dish and tweak the declination setting bolts until I reach an angle of 49.10° Site Polar Declination Latitude Elevation Angle Offset Angle 41.00 48.31 5.70 41.50 47.81 5.76 42.00 47.31 5.82 42.50 46.81 5.87 43.00 46.31 5.93 43.50 45.81 5.98 44.00 45.31 6.03 44.50 44.81 6.09 45.00 44.31 6.14 45.50 43.81 6.19 46.00 43.31 6.24 46.50 42.81 6.30 47.00 42.31 6.35 47.50 41.82 6.40 48.00 41.32 6.45 48.50 40.82 6.50 49.00 40.32 6.55 49.50 39.82 6.59 50.00 39.33 6.64 50.50 38.83 6.69 51.00 38.33 6.74 51.50 37.84 6.78 52.00 37.34 6.83 52.50 36.84 6.87 53.00 36.35 6.92 53.50 35.85 6.96 54.00 35.35 7.00 54.50 34.86 7.05 55.00 34.36 7.09 55.50 33.87 7.13 56.00 33.37 7.17 56.50 32.88 7.21 57.00 32.38 7.25 57.50 31.89 7.29 58.00 31.39 7.33 58.50 30.90 7.37 59.00 30.41 7.41 59.50 29.91 7.45 60.00 29.42 7.48 60.50 28.92 7.52 61.00 28.43 7.56 61.50 27.94 7.59 62.00 27.45 7.63 62.50 26.95 7.66 63.00 26.46 7.69 63.50 25.97 7.73 64.00 25.47 7.76 64.50 24.98 7.79 65.00 24.49 7.82 65.50 24.00 7.85 66.00 23.51 7.88 66.50 23.01 7.91 67.00 22.52 7.94 67.50 22.03 7.97 68.00 21.54 8.00 68.50 21.05 8.02 69.00 20.56 8.05 69.50 20.07 8.08 70.00 19.58 8.10 70.50 19.08 8.13 71.00 18.59 8.15 71.50 18.10 8.17 72.00 17.61 8.20 72.50 17.12 8.22 73.00 16.63 8.24 73.50 16.14 8.26 74.00 15.65 8.28 74.50 15.16 8.30 75.00 14.67 8.32 75.50 14.18 8.34 76.00 13.69 8.36 76.50 13.20 8.37 77.00 12.71 8.39 77.50 12.22 8.41 78.00 11.73 8.42 78.50 11.25 8.44 79.00 10.76 8.45 79.50 10.27 8.46 80.00 9.78 8.48 80.50 9.29 8.49 TELE-satellite International
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TELE INTERNATIONAL SATELLITE IFA Sp
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TELE-satellite International Signin
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12 Upcoming Satellite Fairs and Exh
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Eutelsat, Europe’s leading satell
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22 Innovative Produkte für die Zuk
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26 Spionage selbstgemacht, Teil 30
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28 Testaufbau im Fahrzeug Test set-
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32 zweites Fahrzeug mit dem Sender
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New compact signal processing for u
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42 Sendersuchlauf, einem Digitalaus
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46 Fachhändler nachrüsten läßt.
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50 mit der Betriebsspannung an Bord
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We have been waiting for over one y
Page 28 and 29: Software Release 1.0 (aktuell) QPSK
Page 30 and 31: ASC-TEC, innovationsfreudiger OEM-L
Page 32 and 33: 62 Nein, was da auf der Testbank de
Page 34 and 35: 64 bestimmten Personenkreis den Zug
Page 36 and 37: For one year we have all been betti
Page 38 and 39: 72 Amstrad SAT 401 SDU 80 TELE-sate
Page 40 and 41: 74 tiger Satelliten muß es nicht u
Page 42 and 43: 78 Wer die Wahl hat, hat die Qual -
Page 44 and 45: 80 Unklarheiten und nervenaufreiben
Page 46 and 47: 82 Nicht immer hat der Verbraucher
Page 48 and 49: 84 vor, daß eine weitere Receiver-
Page 50 and 51: 88 MTI Blue Line Die Preise für LN
Page 52 and 53: 90 Satelliten werden wie durch Geis
Page 54 and 55: 92 In einigen europäischen Städte
Page 56 and 57: 94 man als Kernschatten. Sein Durch
Page 58 and 59: Low-Cost reception of Small airport
Page 60 and 61: 100 What's going on in Ukrainie? SA
Page 62 and 63: 104 Hasan Basri Aktan and Michael M
Page 64 and 65: 106 Izcom, Turkey / Tron, Turkey He
Page 66 and 67: 108 CABLE & SATELLITE MEDIACAST DEL
Page 68 and 69: 110 Humax, Korea F1 VACI Viaccess e
Page 70 and 71: 112 SMS, UK / Eurostar, UAE EURO-bo
Page 72 and 73: With Astra, stronger Intelsats and
Page 74 and 75: 174 SATELLITE SNAPSHOTS by Wolfgang
Page 76 and 77: in GF, is 120°. However, an approp
Page 80 and 81: 206 GPS gegen Verbrechen Christian
Page 82 and 83: 208 eigentlich nur noch auf den Kon
Page 84 and 85: 212 Questions? email: drdish@drdish
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