Bandwidth of Coaxial Cable

[mehboob_iiui]

bandwidth of coaxial cable

the coaxial cable that carries CATV channels, can carry hundreds of tv transmissions, what exactly can we say is the bandwidth of the coax cable.

 

[flatulent]

There are two bandwidths. The absolute bandwidth is when the circumference is half a wavelength. This produces two modes of propagations with different speeds which distorts the signal at the receiving end.

There is a practical bandwidth due to attenuation increasing with frequency. This can be equalized by using a circuit with attenuation at lower frequencies. This makes the attenuation large at all frequencies.