- 71 Kallenbach Drive, Linksfield
- info@remtechdestvinstallers.co.za
- +27 78 583 1745
The short answer
Yes. Heavy rain and thick cloud can weaken DStv’s Ku-band satellite signal for a short time, and the picture normally returns when the downpour passes. If you lose the picture in light rain, or it takes long to return, suspect a faulty connector, damaged cable or a dish that has shifted.
DStv’s signal travels from the satellite on Ku-band frequencies, roughly 11 to 12 GHz. At those frequencies raindrops absorb and scatter some of the signal, and the heavier the rain, the bigger the loss. That temporary loss is rain fade.
| What happens | Usually means |
|---|---|
| The picture breaks up only in a heavy storm and returns soon after | Normal rain fade |
| It drops in light rain | A weak connector, damaged cable or a dish slightly out of line |
| It stays down long after the rain stops | Water in a connector, a shifted dish or a damaged LNB |
| Only one TV is affected | That TV’s cable run. See second TV pixelating |
| It is getting worse each season | Corrosion or wear that needs attention |
A film of water on the dish and LNB cover also weakens the signal. Heavy cloud and rain together can reduce the signal more than rain alone. This is normal and clears as the surfaces dry.
Summer storms on the Highveld bring intense, short downpours. A system with a healthy margin rides most of them out. A system with weak connectors or a slightly misaligned dish loses the picture first. See our storm season checklist.
Rain absorbs some of the satellite signal. A healthy system rides out light rain and most storms.
Short dropouts in very heavy rain are normal.
It can add margin, but alignment, connectors and cable matter just as much.
Usually soon after the downpour passes. If it takes long, suspect a fault.
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