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Satellite dish pointing angle calculator for Iraq
You must click on the map after selecting the satellite
Instructions for VSAT or satellite TV dish pointing in Iraq
Select the satellite you want to point towards using the pull down menu box at the lower left. Eutelsat at 36 east longitude, is just an example.
Put your cursor near your location and drag to the centre of the map. Alternatively double click.
The map display should now have moved so that the chosen location is in the middle. The latitude and longitude of the map centre is then shown below the map, together with your satellite dish pointing azimuth, elevation and polarization (skew) angles. If you exactly cover the hand over the icon, the icon will change to a pointing finger and the name of the town should appear. When the pointing finger is showing, the dragging and double click function won't work. Move slightly off till the grab hand reappears and then drag or double click.
To improve the accuracy, click on the plus sign at the left side of the map. The scale will enlarge so that you can home in accurately on your location. Repeat. You may investigate the roads and towns for accurate location information. For satellite antenna pointing, an approximation is fine.
Dish pointing (Azimuth and elevation mount):
Set the dish elevation angle first. This is the up/down angle and there may be a scale on the back. An inclinometer may be of use. Setting the feed polarisation angle involves rotating the LNB. There may be polarisation rotation scale on the feed throat. Facing the satellite, clockwise is positive.
For the azimuth bearing use a magnetic compass and boldly swing the dish sideways around that angle. You should find the satellite on the first swing, then spend half an hour peaking up. Peaking up is really important for long term service quality and minimum outage time during any rain fades.
Polarisation:
I have added a small image showing approx where to put the LNB filter arm. Note that this picture of the circular feed horn window and the LNB on the end of its filter side arm assumes you are standing behind the dish, and looking over the top of the dish towards the satellite in the sky. Clockwise means a positive polarisation adjustment amount.
Dish pointing (Polar mount):
Only your latitude matters. Set the main motor axis angle and the small downward tilt of the dish and with the motor central align the dish towards the due south satellite. Motor rotation angles to the east are positive, to the west negative.
Disclaimer and Safety Warning:
The results of this page may be in error, The latitude and longitude are not intended for the blind navigation of aircraft, ship or other vehicle purposes. Dish pointing angles may be wrong. Magnetic azimuth bearings are approximate. Use is entirely at your own risk. Apply common sense and don't believe every number that comes out of a computer system. Take care with satellite dish pointing to not injure others by dropping tools or hurting yourself by falling down. Use GPS as an alternative. If I have got some of the town locations or names wrong please tell me.
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Lat, Long, Place name
33.0449, 40.0388, Ar Rutbah |
Polarization image showing the horn and feed system as seen from behind the dish while facing forwards, added 11 June 2009. Feedback would be appreciated. For polarization angles of less than +/- 10 deg the tilt is exaggerated, to clarify the direction of the tilt required.
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This page is on the satsig.net web site and is strictly Copyright Satellite Signals Limited (c) 2006 All rights reserved. Page started 19 July 2006, amended 28 July 2023. |