How a Satellite TV Antenna Works

Written by Gary Davis


How a Satellite TV Antenna Works

By Gary Davis

Dish-Network-Satellite-TV.ws

Webmasters: You may reprint this article in its entirety, providing you leaverepparttar Byline and Aboutrepparttar 109904 Author sections intact, includingrepparttar 109905 links to Dish Network Satellite TV. Practically all broadcast systems use antennas to transmit and receive radio signals. These Satellite TV antennas are based on single metal pole to whichrepparttar 109906 carrier signal is sent through a cable. First let’s talk about how this most simple type of antenna works:

Pole Antenna

A Pole antenna basically consists of one metal pole that transmits it signals around it as if it wasrepparttar 109907 center of a sphere. In all directionsrepparttar 109908 transmitted signal hasrepparttar 109909 same power. The length ofrepparttar 109910 antenna is determined byrepparttar 109911 frequency ofrepparttar 109912 transmitted signal.

Radio waves, like light waves, always travel atrepparttar 109913 same speed, which is about 186.000 miles (300.000 km) per second. One wave length is determined byrepparttar 109914 frequency ofrepparttar 109915 signal byrepparttar 109916 following formula:

Wavelength = speed of light / frequency

This results in higher frequencies having shorter wavelengths. A pole antenna doesn’t have to haverepparttar 109917 length of a complete antenna but can also have a length of about ½ , 1/8, or 1/16 ofrepparttar 109918 wave length. This is done mostly for practical purposes (shorter antennas). Wave lengths for pole antennas can go as high as 1 to 2 Giga Hertz. A cell phone for instance works at frequencies of 950 Mega Hertz which is almost 1 Giga Hertz.

Satellite TV or Parabolic Antenna



Satellite TV Reception

Written by Gary Davis


Satellite TV Reception

By Gary Davis

Dish-Network-Satellite-TV.ws

Webmasters: You may reprint this article in its entirety, providing you leaverepparttar Byline and Aboutrepparttar 109903 Author sections intact, includingrepparttar 109904 links to Dish Network Satellite TV.

Satellite TV Reception

You are sitting at home, watching TV, and while your show is entertaining you, outsiderepparttar 109905 weather is getting worse. It starts raining,repparttar 109906 wind is getting stronger, but your Satellite Antenna is doing its work as if it is a sunny quiet day.

This isrepparttar 109907 experience of most people that enjoy satellite TV; Smooth reception no matter what weather it is outside. (Of course an hurricane that can destroy your house may be capable of moving your satellite dish as well.)

Bad weather doesn’t do much to Satellite antenna reception. But sometimes your antenna can loose reception completely and generally there are some obvious reasons for it that you can solve your self very quickly:

No Satellite TV but Free Coffee

You come home from work, sit down inrepparttar 109908 couch switch onrepparttar 109909 TV and your Satellite TV Receiver and….. Nothing! Your son brings you a cup of coffee and asks how your day was.

When these 2 very rare events occur atrepparttar 109910 same time and your son is not playing with his basketball outside inrepparttar 109911 yard like he usually does, you better go check your antenna onrepparttar 109912 roof (or where ever your antenna is located.) If a very familiar basketball got stuck betweenrepparttar 109913 dish andrepparttar 109914 receiver, you know what to do!



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