Parabolic satellite dishes focus radio signals toward a narrow point in the sky. Even a small misalignment can weaken reception, causing dropouts and poor picture quality. This calculator provides a starting point for aiming the dish so you can fine-tune with signal meters.
The azimuth angle points the dish horizontally while elevation aims it vertically. With geostationary satellites hovering above the equator, you can compute the pointing angles using basic spherical geometry. The MathML formula for elevation is:
where is your latitude, your longitude, and the satellite’s orbital longitude.
After pointing the dish using these calculations, connect your receiver and slowly adjust both axes for maximum signal strength. Some installations use a small TV near the dish to monitor quality in real time. Make sure the mounting pole is plumb, as any tilt can change the angle.
If you live at latitude 40°N and longitude 90°W and aim at a satellite positioned at 100°W, the difference in longitude is 10°. Plugging this into the equations yields an azimuth of about 189° and an elevation close to 42°. These are a starting point; refine them using your receiver’s signal meter.
Properly aimed dishes mean clear connections whether you’re watching TV or joining remote internet networks.
Estimate the harmony score of a room using feng shui principles. Adjust layout, natural light, and clutter to improve energy flow.
Calculate the optimal desk height for seated or standing work based on your body measurements. Discover ergonomic tips for monitor placement, chair adjustment, and healthy posture.
Find the moon phase for any date with our Moon Phase Calculator. Learn about each lunar phase and how it influences tides, gardens, and traditions.