A digital channel can be broadcast in standard definition (SD) (Figure 1.2) or high definition (HD) (Figure 1.3).The HD channels take up more bandwidth than SD. As such, a digital multiplex can contain one HD channel and two SD channels or six SD channels. Most of us are familiar with HD quality, and although SD isn't as good as HD, it is still much better than analogue.
A digital channel can be broadcast in standard definition (SD) or high definition (HD) (Figure 1.3).The HD channels take up more bandwidth than SD. As such, a digital multiplex can contain one HD channel and two SD channels or six SD channels. Most of us are familiar with HD quality, and although SD isn't as good as HD, it is still much better than analogue.
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