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How can we calculate the scope of an antenna?

the relations between the dBi and the distance?

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Question added by yousouf tedjini , Technical Sales Engineer , Optique Distribution Algerie
Date Posted: 2014/05/17

there are meny uses of antenna with out antenna the wireless comminicatin is not possible 

very  scope in satellite (line of site) LOS

television broadcasting 

cell phone 

bts and more

The antenna need is decided my application.The antenna with narrow band application are used in different places.The antenna gain is according to the distance and pattern of the antenna

ADLENE RAMDANE
by ADLENE RAMDANE , Electronics Maintenance , RADIO ALGERia

when you have a large distance you have small db (good db)

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