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

Analog Cable service

Digital broadcasting is a new way of sending programs over the airwaves with superior quality video and audio. The DIRECTV® High-Definition 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 categories: 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; over-the-air (NTSC, ATSC), cable, and satellite.

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