Before revision: Benefits and drawbacks The analog transmission method is still very popular, in particular for shorter distances, due to significantly lower costs and complex multiplexing and timing equipment is unnecessary, and in small "short-haul" systems that simply do not need multiplexed digital transmission.Telecommunication System Engineering By Roger L. Freeman .2004 .
After revision: Benefits and drawbacks The analog transmission method is still very popular, in particular for shorter distances, due to significantly lower costs and complex multiplexing and timing equipment is unnecessary, and in small "short-haul" systems that simply do not need multiplexed digital transmission.Telecommunication System Engineering By Roger L. Freeman .