2. IMPORTANT OVERVIEW
2-1. Sending Signals
Satellite
Sat A 101 | Sat B 110 | Sat C 119 |
Digital Analog
signal signal
DIRECTV
TV
HD Receiver
Phone |
|
Jack | Cable service |
Digital broadcasting is a new way of sending programs over the airwaves with superior qual- ity video and audio. The Zenith HD Satellite Receiver enables you to take full advantage of digital broadcasting. To fully enjoy it, you need to understand the ways the program signals are sent.
There are two types of TV signal formats; analog (often called NTSC format; National Television System Committee) and digital (ATSC format; Advanced Television System Committee). Digital formats are classified into three catagories: High Definition (HD) Enhanced Definition (ED) and Standard Definition (SD) according to the resolution or digital picture quality.
There are also three ways that program signals can be received;
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