Important overview, 1. sending signals – LG LSS-3200A User Manual

Page 10

2-1. Sending Signals

2. IMPORTANT OVERVIEW

Digital broadcasting is a new way of sending programs over the airwaves with superior qual-

ity video and audio. The DIRECTV

HD Receiver enables you to take full advantage of digital

broadcasting. To fully enjoy it, it is helpful to understand the ways that 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.

HD Receiver

Phone
Jack

Digital
signal

Analog
signal

DIRECTV

Sat A 101

Sat C 110

Sat B 119

Satellite

Analog Cable service