2.14.2008

Tips for TV-Sat installations


Development of television and telecommunications techniques promotes quick spreading of modern antenna installations just like in the past the common use of electric devices extorted careful designing of electric installations.

Some advice for all who would like to do such installation:

1.Place and way of mounting the antennas

Most of damages in antenna installations are the result of collapse of improperly fixed mast or breaking badly laid cable lines. Nowadays, the most popular solution is clamping the antenna mast to a chimney. Masts can also be fixed with wall brackets. Satellite dishes are usually fastened on separate masts. Antenna cable should enter a building already on the roof.
A WLAN antenna has to be mounted the way guarantying mutual visibility with the counterpart (usually of the Internet provider).

2. Kind of installation (pass-through, star-shaped, mixed)

Currently the pass-through installations are not preferred, especially in larger systems. Star installations are more universal and more resistant to interferences induced by connected receivers. They are used both for distributing terrestrial and satellite programs (multiswitch installations).

3. The Method of laying cables
In new office blocks and even apartment buildings cable trays become more and more popular solution for placing electrical, computer, telecommunications and RF installations.

There should be planned main vertical conduit from the basement to the attic, with possibility of leading branches on every floor. Such layout will allow to implement modern installations, change location of main devices etc. It is not recommended to lay unprotected cables just under the plaster. Each cable has limited life and can also be accidentally damaged (e.g. when drilling holes in the wall). The exchange would be extremely difficult.

If the installation is to be laid traditionally, conduit tubes should be applied.

More informations: http://www.dipolnet.com/some_tips_and_hints_dodatek.htm

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