Question

How many 600kHz waves can be on a 5 mile transmission line simultaneously?

Answer 1

Given: f = 600kHz; d = 5 mile
First determine the wavelength of the 600kHz signal using,$f\lambda =c$
Use 186000 mile per second as the speed of light since the line length is given in mile and no figure is given for the velocity factor.
Substitution numercial values,
$600\times {10}^3\lambda =186000$
$\lambda =\frac{186000}{600\times {10}^3}=0.31$ mile
Knowing the wavelength of the signal and the length of the line, the number of cycle on the line can be found from
$n=\frac{d}{\lambda }=\frac{5}{0.31}=16.13$