CBT CBT Digital Broadcasting Standards 1

Question 1

Which compression standard is used by ATSC 1.0 for digital television broadcasting in the United States?

Accepted Answer

MPEG-2

Answer

ATSC 1.0 uses MPEG-2 video compression for over-the-air digital television broadcasting in the US.

Question 2

What modulation technique does ATSC 1.0 use for terrestrial broadcast transmission?

Accepted Answer

8-VSB

Answer

ATSC 1.0 uses 8-VSB (8-level Vestigial Sideband) modulation for terrestrial over-the-air broadcasting.

Question 3

What is the maximum data rate of a single ATSC 1.0 6 MHz broadcast channel?

Accepted Answer

19.39 Mbps

Answer

An ATSC 1.0 channel provides approximately 19.39 Mbps of usable payload data rate within a 6 MHz channel.

Question 4

In ATSC standards, what does the term 'subchannel' or 'multicast' refer to?

Accepted Answer

Multiple program streams within one 6 MHz channel

Answer

Multicasting allows a broadcaster to carry multiple program streams simultaneously within a single 6 MHz ATSC channel.

Question 5

What generation of ATSC standard introduced support for HEVC video compression and mobile broadcasting?

Accepted Answer

ATSC 3.0

Answer

ATSC 3.0 (NextGen TV) introduced HEVC compression, OFDM modulation, and native IP delivery with mobile reception capability.

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