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Sunday, April 16, 2006

Satellite tv

Satellite TV - Finding the best location for dish installation by Todd Humphrey
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Satellite Dish Line Of Sight

Line of Sight
A satellite dish must have a clear line Line-Of-Sight to the satellite. The largest mistake an inexperienced or careless installer will make is locating a dish where trees will partially block the satellite signal, resulting in a lower then normal signal level. ANY signal blockage is unacceptable. Even if you have a clear picture, you can have signal blockage. A satellite dish with a clear line of sight will deliver a signal average of at least 75-80.

Satellite broadcast channels are called transponders. Each transponder contains up to 20 TV channels. The minimum signal level for a transponder to provide a clear picture is about 40. Atmospheric conditions such as rain, snow and dust affect the strength of the signal. During a heavy rain storm (rain fade), you may loose some or all of your signal. If your system has an average signal level of 60, you will experience more outages then someone who has an average signal strength of 75. The satellite industry considers 70 as the minimum signal level for all transponders. Some transponders are not used and will have a 0 signal level. Others are not meant to be used in your geographical area and may have signal levels far below normal.

Do not accept an average signal level of 70. 70 is the minimum considered as acceptable, but only a few should be that low. Most signal levels will be around 75 or higher.

Sometime your installer may be required to install the dish at the highest peak of a roof to avoid any future tree problems. These installations are not a basic or standard installation. When the installer is required to walk on a roof to access the dish location, the installer will usually charge a service fee for this type of work. Not all installers will even offer to provide this type of installation. If your installer refuses to provide this type of additional charge installation, even in safe conditions, you are usually better off seeking a different installation company, which does offer this form of custom installation.

A dish should not be installed if any tree growth will block signal within 1 year. If your installer cannot guarantee that you will have a clear line of site for a period of time you find acceptable, then you should seek another location, installer or perhaps even consider another system.

A common practice to avoid tree problems is to mount the dish on a ground post. Do not use a wood post, it may twist over time. The installer should carry a steel post and concrete. The installer will charge extra for this custom work, but it may be your only option. If your installer does not offer a steel ground post option, you should seek an installer that will.

DirecTV and Dish Network use different satellites for their core programming. For satellite Internet service there is also more then one choice. Often you will find that one system will work better for you due to a better line-of sight. Your installer may not be able to discuss your other options because of their obligations to the client that sent them to you. But, you can ask for their advice. Most good installers will help you.

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About the Author

Todd Humphrey operates a Satellite TV and Satellite Internet consumer help web site, DBSInstall . DBSinstall provides consumers the resources they need to solve common Dish Network, DirecTV, DirecWay, HughesNet, WildBlue and FTA Satellite problems. When professional help is required, consumers can search though our national database for local Satellite Retailer or Installer near them.