Online Activity 32 Digital Television Multiplexing 1. Perform an Internet search on the terms HDTV, digital television, or high definition TV 2. Locate documents that explain the operation, modulation, and multiplexing of the U.S. HDTV system. It is called the Advanced Television Standards Committee (ATSC) digital TV standard. 3. Answer the following questions. Questions: 1. How many individual signals are multiplexed in the ATSC HDTV system? 2. Does HDTV use FDM or TDM? 3. What is the bandwidth of an HDTV channel? 4. What is the net data rate through the channel? 5. What kind of modulation is used to transmit the HDTV signal?