iInstall specialise in a range of TV antenna installations including the very latest in digital aerial technology. We provide new installation, TV antenna repairs, digital antenna's, standard TV aerials, new TV point outlets as well as TV tuning.
Digital TV is far superior in quality and clarity than analog TV, but a weak signal can sometimes cause problems with reception. For example, a weak analog signal would appear on the TV screen as a "snowy," or grainy, picture, which may be annoying, but is still viewable. In contrast to this, a slightly weak digital signal would still be sharp and clear. However, if the digital signal was too weak, it could cause the audio and video to cut in and out or disappear altogether.
Another example is multipath, wherein some of the TV signal bounces off a tall building or other structure and arrives slightly later than the direct path signal. An analog signal would appear with a "ghost" image, which is a slightly displaced and faint duplicate of everything in the picture. Again, this may be annoying but is still viewable. A digital signal would produce the same effects as a weak signal: either a clear ghost-free picture, or loss of audio and video, depending on the severity of the multipath.
The best solution to either problem is to find a way to boost the incoming signal. Here are some tips for boosting a digital TV signal:
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