The noise power in a band of h herz is n0h s is the

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: e power in a band of H herz is N0H. S is the signal power. ATTENUATION is bad because: 1. Weakened signal reduces S/N, information capacity. 2. Attenuation is usually greater at the higher frequencies. In relaying a digital signal, it is better to regenerate it at each relay station than to just amplify it. GUIDED TRANSMISSION MEDIA Twisted pair, Coaxial cable, Optical fiber Guided media attenuation - measured in dB per kilometer V is voltage, P is power. Twisted Pair - a pair of wires twisted together to reduce electromagnetic coupling to and from the wires. Coaxial cable...
View Full Document

This note was uploaded on 01/26/2014 for the course EE 362 taught by Professor Laporta during the Fall '08 term at Penn State.

Ask a homework question - tutors are online