Unlike books that focus on the devices used in links, such as lasers and
photodiodes, among others, this text focuses on the next level. It
covers the collection of devices that form a link, how the individual
device performance affects the link performance, or the reverse. Analog
links are used for the distribution of cable TV signals, and in
conveying the signals to and from antennas (so called antenna remoting).
The design of analog links differs significantly from digital links
which are primarily used in telecommunications.