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How to Increase the Signal to a Sky Digital Box

Have you ever found it frustrating when you're in the middle of watching your favourite show and all of a sudden your Sky signal starts to play up? There are many reasons why you could be experiencing poor signal. These vary from the weather, improper installation of the dish or even the location of where the dish has been placed. Some of the suggestions below could make days of weak Sky signal a thing of the past.

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  1. Extreme weather such as torrential rain or severe winds could affect the signal of a Sky digital box, even if it has been installed correctly. A message appears on the screen saying "no satellite signal is being received." During thunderstorms, there is little that can be done to increase signal quality. If the signal is weak during heavy rain, it is usually because the Sky dish has been misaligned by winds or by water ingression into the coaxial cable. If the latter occurs, then the cables can be replaced. Pole-mounted sky dishes are more likely to be affected during strong winds as the pole could be moved or even bent. To resolve this, the dish should be reinstalled onto a stronger, shorter pole or even relocated so it only requires the standard Sky dish mounting bracket.

  2. Weak signal could be caused by improper installation of the Sky dish. You should check that the LNB F-type connection has been made correctly--it should be tightly secured and waterproofed (you could use self amalgamation tape). If there are any signs of water ingression, you should replace the feeder and only use PF100 satellite coaxial cable that has been CAI approved.

  3. A Sky dish requires unobstructed view to receive full signal. Broken or no signal could be a result of the dish being screwed to a tree, installed under a pitched roof where signal is partially obstructed, the dish not being installed horizontally, the dish could be damaged or the coaxial cable has not been waterproofed. You should ensure the LNB arm of the dish is completely horizontal (which could be checked by spirit level), the dish is not obstructed by overhanging roof or trees and the cable has been securely tightened and waterproofed.

  4. If you continue to experience poor or no signal, it is best to contact Sky, who could send out a technician to assess the problem. Alternatively, you could purchase a new Sky dish LNB, which has a lower noise level than those fitted a few years ago. Ensure that the universal LNB arm adaptors have been supplied when you purchase any Sky dish.

  5. Tip

    If none of the above solutions have helped to increase the signal to your Sky digital box, it may be because the box itself is faulty. Try borrowing a neighbour's or friend's to verify whether the problem remains. A faulty digital box is commonly caused by poor ventilation, so you should never put anything on top of it such as a DVD player. This obstructs the ventilation holes and could lead to the digital box overheating, which diminishes the lifespan of electronic parts within it. You could install a computer CPU fan to reduce overheating.


    When installing or amending a satellite dish you are best advised to seek professional help to diagnose the problem correctly and prevent danger when dealing with ladders.

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About the Author

Raj Kaur Bilkhu

Raj Kaur Bilkhu began writing professionally in 2007. She worked as a reporter for Sunrise Radio, Touch Radio and various BBC radio stations. She is now working as a freelance broadcast journalist and writer. Bilkhu holds a postgraduate diploma in broadcast journalism from Birmingham City University.

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