Calculate the length of cable through which a signal can be sent before its power decreases to half the original value. Do this for each of the media types above assuming that the attenuation in twisted pair cables is 6 dB/km, in coaxial cable is 1.5 dB/km and in optical fiber is 0.3 dB/km. Please show every step briefly.

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter8: Data And Network Communication Technology
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Calculate the length of cable through which a signal can be sent before its power
decreases to half the original value. Do this for each of the media types above
assuming that the attenuation in twisted pair cables is 6 dB/km, in coaxial cable
is 1.5 dB/km and in optical fiber is 0.3 dB/km.

Please show every step briefly.  

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