How to Align Your Satellite Dish for Maximum Signal Strength

Why Dish Alignment Matters

Even a fraction of a degree off-target can mean the difference between a crystal-clear picture and a pixelated mess. Satellite signals travel over 35,000 kilometres from geostationary orbit, so any misalignment compounds rapidly over that distance.

Getting the alignment right the first time saves hours of frustration and prevents you from climbing back onto the roof after your first rainstorm washes your pencil marks away.

The Three Angles You Need to Know

1. Azimuth

Azimuth is the horizontal compass direction your dish must face. It is measured in degrees from True North (0°) clockwise around to 360°. Most dishes have a compass-style scale on the mount for rough positioning.

Always use True North for azimuth calculations, not Magnetic North. The difference (magnetic declination) can be up to 20° in some parts of the world.

2. Elevation

Elevation is the vertical tilt of your dish, measured in degrees above the horizon. The closer you are to the equator, the higher the elevation angle for geostationary satellites directly south. In northern Europe, for example, elevation angles can be as low as 20°–25°.

3. LNB Skew (Polarisation Offset)

The LNB (Low-Noise Block) must be rotated to align with the satellite's signal polarisation. An incorrect skew angle causes cross-polarisation interference and significantly reduces signal quality even if azimuth and elevation are spot on.

Step-by-Step Alignment Procedure

1. Calculate your angles using DishTuner — enter your location and select the target satellite.
2. Mount the dish securely and point it roughly in the right direction using a compass.
3. Set elevation using the protractor scale on the mount. Tighten loosely — you'll fine-tune later.
4. Set LNB skew by rotating the LNB housing to the calculated angle.
5. Connect your receiver and open the signal meter screen.
6. Sweep azimuth slowly left and right (about 5° either side) while watching signal quality.
7. Peak the signal by making tiny adjustments to azimuth and then elevation alternately until the quality bar stops rising.
8. Tighten all bolts firmly once you've hit the peak.

Common Mistakes to Avoid

• Confusing Signal Strength with Signal Quality — quality is the reliable metric
• Over-tightening the mount before peaking the signal
• Ignoring magnetic declination when using a compass
• Forgetting to check for obstructions in the signal path (trees, buildings, overhangs)
• Using a TV meter instead of the receiver's built-in signal meter

Using DishTuner for Accurate Calculations

The DishTuner alignment tool calculates all three angles automatically from your GPS coordinates and your chosen satellite. It also plots the satellite position on an interactive map so you can visually confirm there are no obstructions.

Simply open the Alignment Tool, allow location access or enter your address manually, select a satellite from our database of 280+ satellites, and you'll get your personalised angles in seconds.

Final Tips

• Align on a clear day — rain fade can mislead you into thinking your alignment is worse than it is
• Use a signal finder tool for initial rough alignment to speed up the process
• Take a photo of your final bolt positions for easy re-alignment after any movement
• Check alignment seasonally — thermal expansion can shift dishes over time