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By: Fiya Ali

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Wednesday, 15-May-2013 13:18 Email | Share | | Bookmark
How Do Outdoor Antennas Offer The Advantage?

The ideas included in aerial installation

The <a href="">TV antenna</a> is a device for intercepting the electromagnetic waves & signals that have both a transmitter and a receiver. Some antennas are going to be simple vertical poles and others are going to be small wire loops which can be attached to the back of the TV set. The principle receiving element of an antenna is called the dipole. The dipole consists of two half elements to which the transmission line can be attached. It is the element around which another antenna parts are designed & positioned.

Advantages of aerial installations:

• To choice between the unidirectional & omnidirectional.
• It provides better & increased receptivity of the digital signals.
• Frequently the antennas can be found at the highest point on a structure, thus we obtain the increased reception.
• The choice of sizes and styles also is determined by the antennas.

Basic TV antenna types are grouped in 4 major functional categories:

• UHF,
• FM.

The gain of the TV antenna indicates the relative strength of the signal where it could deliver to the receiver. The higher the TV antenna gain, the stronger the signal along at the antenna output terminals. In most cases, the larger the TV antenna, the higher may be the gain.

Safe aerial installation procedures:

• Locate and avoid power lines and other wires in the work area.
• Do not climb on a wet or icy roof.
• Don’t attempt high installations on windy days.
• Don’t position ladders at an angle steeper than 70°. Steeper angles could cause a ladder to slip sideways.
• Dig the base of the ladder into the bottom if possible.
• Don’t place ladders on slate that's wet or hot. Wet otherwise sun-heated slate is incredibly slippery.
• Do not climb on roofs which have curled or worn shingles.
• Wear seasonable clothing that's neither too tight nor too loose.
• Wear a couple of durable but flexible protective gloves whenever they will not interfere with the work process.
• Carry a well-equipped first aid kit in your truck.
• Keep a couple of cans and spray which will shoot with a long stream.
• Have an efficient insect repellent handy during spring and summer months.
• Any antenna mounted on 20 or else more feet of mast requires more than one person to install.
• Carefully survey the job before beginning the installation to locate secure handholds, dangerous conditions and also the safest & most convenient placements for ladders.
• Don’t step into roof valleys.
• Don’t install antennas under large, overhanging tree branches if it could be avoided.
• Buy only the very best quality tools & equipment.
• Antennas must be installed from power lines a distance equal to at least twice the combined length of the mast & antenna.

The national electrical code needs every TV antenna installation must be grounded. Many areas have local antenna grounding codes. It is a good common sense to ground a TV antenna. The NEC requires that the antenna should be mounted to the ground directly. For more details <a href="">Follow this link</a>


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