Exercise#$3$

Given a $200$ Watt power source, what is the maximum allowable length for the following transmission media if a signal of $1$ Watt is to be received?

a$-19-$AWG$(0\mathrm{.}9mm)$ twisted pair operating at $4500kHz,$

b$-0\mathrm{.}375-$inch $(9\mathrm{.}5mm)$ coaxial cable operating at $4500kHz,$

c$-$ Compare a$-$ and b$-.$

Indication:

$($a$)$ Twisted pair $($based on $[$REEV$95])$

$($c$)$ Optical fiber $($based on $[$FREE$02])$