Multiplexing is the leading digital broadcasting technology. It is
inexpensive as compared to traditional analogue broadcast. Digital
broadcast is the evolution of broadcast television and has become the
standardized form of television broadcast in North America due to its
crisp picture, higher energy efficiency, and compatibility with digital
televisions.
The advantage of multiplexing is that up to six broadcasters can share a
single transmitter significantly lowering the capital and
operation/maintenance costs. Digital television is much better quality
than traditional analogue television and can be tuned in on a digital
television set or on a traditional analogue set by using an inexpensive
set-top-box.
Traditional analogue broadcast is the transmission of a single analogue signal from one transmitter to a TV set with rabbit ears (Figure 1.1). Multiplexing is the combining of several "sub-channels" into a single digital signal for broadcast. When the signal is picked up by a digital television or set-top decoder box, the single signal is broken down into its multiple sub-channels again.
(Go to page 2)
Traditional analogue broadcast is the transmission of a single analogue signal from one transmitter to a TV set with rabbit ears (Figure 1.1). Multiplexing is the combining of several "sub-channels" into a single digital signal for broadcast. When the signal is picked up by a digital television or set-top decoder box, the single signal is broken down into its multiple sub-channels again.
(Go to page 2)
  |
 |
 |
 |
