Question:

The taller the building, the larger the antenna?

by  |  earlier

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maybe i am missing some common logic here but how come it seems that the taller the building is, the larger the radio antennas are on them. I mean i know antennas are used to get above ground to get a signal sent and recieved but they are already high enough why add more unneccessary metal? Like the empire state building, it has a HUGE antenna mast but its the tallest building around.

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3 ANSWERS


  1. 1. A taller building has a larger horizon, and thus,

    an antenna mounted there can use more radiated power to reach a larger area. Ergo larger antenna.

    2. At such a desirable location more than one

    antenna is likely to be mounted. Ergo larger structure.


  2. Ever considered that it attracted the large antenna BECAUSE it was the tallest building around? It's prime real estate. Have a look at the highest hills and their antennae. The owners of the antennae want tall structures to put them on. If the can not have a hill/mountain they will use a building or tower.

  3. First of all, the antenna is included in the buildings height.  In order to break records, they'll use tall antennas or spires to increase the height.  I can't remember the exact details, but I remember when one building had its antenna replaced by a bigger one since the builder/owner/sponsor (can't remember) wanted to reclaim the title after another building had been built slightly taller.

    Second, taller buildings are designed to hold more weight.  As such, they are more capable of holding larger antennas.  With a larger antenna, they can reach out farther, and thus will have a better business offer by radio stations and telecommunication companies.

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