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A microwave telephone link operating at the central frequency of 10 GHz has been established. If 2% of this is available for microwave communication channerl and each telephone is alloted a bank width of 8 KHz. the number of telephone channels which cn be simultaneously granted is `2.5xx10^(a)`. What is the integer value of a? |
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Answer» Microwave freqeuncy used in telephone link `=10GHz=10xx10^(9)Hz=10^(10)Hz` Frequency available for microwave communication `2%` of 10 GHz `=(2)/(100)xx10^(10)=2xx10^(8)Hz` Bank width of each telephone channel =8 kHz `=8xx10^(3)` Hz Number of microwave telephone channels `=(2xx10^(8))/(8xx10^(3))=2.5xx10^(4)=2.5xx10^(a)` `therefore a =4` |
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