Satellite dish being realigned with a signal meter on a South African roof

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Dish alignment

Satellite dish alignment — two degrees is all it takes

A satellite dish points at an object 36 000km above the equator. The tolerance is small, and a dish nudged out of line by wind, a storm or a ladder will pixelate, break up and eventually stop working entirely.

Meter aligned Usually under an hour Secured properly

Why alignment is more delicate than it looks

Your satellite dish is aimed at a specific communications satellite in geostationary orbit, roughly 36 000 kilometres above the equator. It is a small target at an enormous distance, and the angular tolerance for a clean lock is correspondingly tight.

Move the dish by a couple of degrees — which a strong wind, a hailstorm, a bird, or a ladder leaned carelessly against it will comfortably do — and you will still receive signal. That is the trap. It will still work, mostly, on a clear day. But the margin is gone, and the first real rain will take the picture away.

So realignment is not just about getting a picture back. It is about restoring the margin, so that the installation has enough headroom to keep working through weather. That is why we align on both signal strength and signal quality, and why we optimise rather than simply accepting the first lock we find.

Technician using a satellite signal meter to align a DStv dish precisely

The detail

What knocks a dish out of alignment

More things than you would expect.

Wind and storms

The most common cause. A dish is a sail. Sustained high wind, particularly on a poorly secured bracket, will move it.

A loose or corroded bracket

The bracket bolts loosen over years, or the bracket itself corrodes. The dish then moves gradually rather than suddenly, and the signal degrades slowly.

Birds

A dish arm is an excellent perch, and a heavy bird landing on the LNB arm repeatedly will eventually shift things.

Ladders and building work

Painters, roofers and satellite installers all lean ladders against convenient things. A dish is a convenient thing.

Trees growing into the line of sight

Not strictly an alignment problem, but it produces identical symptoms. A tree that was small five years ago is not small now, and it is between your dish and the satellite.

A poor original installation

A dish that was aligned by eye rather than with a meter never had any margin to begin with. It works until the first storm and then it does not.

What you get

What realignment involves

Precise, and permanent.

01

Line-of-sight check first

Because a tree is not an alignment problem.

02

Bracket and mounting inspection

A loose bracket will simply move again.

03

Meter alignment on strength and quality

Both readings, optimised, not just locked.

04

Skew adjustment

The often-forgotten third axis, and it matters.

05

Bracket tightened and secured

So the dish stays where we put it.

06

Full channel test

Including the weak transponders that fail first.

Included

Every alignment includes

Done properly, so it lasts.

Line-of-sight assessmentTrees, buildings and new obstructions

Mounting and bracket inspectionTightened, or replaced if corroded

Elevation, azimuth and skewAll three axes, optimised

Signal quality maximisedNot just strength — this is what gives you rain margin

Connector and LNB checkBecause a bad LNB will look like bad alignment

Complete channel testEvery channel confirmed stable

Our process

How a realignment runs

01

Tell us what changed

A storm? Building work? Or has it degraded slowly over months?

02

We check line of sight and mounting

Before we touch the alignment itself.

03

We align on a meter

Elevation, azimuth and skew, optimised for quality.

04

We secure it and test everything

So it stays aligned through the next storm.

FAQ

Dish alignment — your questions answered

The things people actually ask us on the phone, answered straight.

Not sure what is wrong?

WhatsApp us the make, the screen size and a short video of what the TV is doing. We can usually narrow the fault down before a technician is even dispatched.

WhatsApp 063 866 0971
How do I know if my dish needs realigning?

If the picture pixelates or breaks up, particularly in weather that never used to affect it, and especially if this started after a storm or building work, alignment is a strong suspect. Losing channels gradually over months more often points at the LNB.

Can I align the dish myself?

You can try, and people do. The difficulty is that without a meter you are optimising for a picture rather than for signal quality, and a picture appears well before the alignment is actually optimal. That means you end up with no margin, and the first rain takes it away again.

How long does a dish alignment take?

Usually under an hour, including the line-of-sight check, the mounting inspection, the alignment itself and a full channel test.

What is skew and why does it matter?

Skew is the rotation of the LNB in its holder, and it aligns the LNB with the polarisation of the satellite signal. It is the axis most often ignored by casual installers, and getting it wrong costs you signal quality even when elevation and azimuth are perfect.

My dish was fine and now it is not. What changed?

Wind and storms are the most common cause. Also worth considering: has anyone had a ladder up recently? Has a tree grown? Has a neighbour built something? All of these produce identical symptoms.

Will realigning fix my rain fade?

It will improve it substantially if the alignment was the problem. A properly optimised dish has margin — enough surplus signal quality to keep working through rain that would kill a marginal installation. If the LNB is also degraded, that needs replacing too.

Book a TV technician

Dish moved? Picture breaking up?

If it started after a storm, it is probably alignment. We will re-point it properly and give you back your rain margin.

Satellite dish alignment across Gauteng

Contact

Speak to a TV technician, not a call centre

Call us
0861 995 085Open 24 hours · 7 days a week
WhatsApp
063 866 0971Send a short video of the fault — it speeds everything up.
Where we work
Johannesburg, Pretoria, Sandton, Centurion, Midrand, the East Rand and the West RandSee every area we cover →

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