860 dspi vsb_appnote
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860 dspi vsb_appnote

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    860 dspi vsb_appnote 860 dspi vsb_appnote Document Transcript

    • Application Note 860 DSPi VSBQAM (8 VSB and 16 VSB)8VSB is the 8-level vestigial sideband modulation method adopted for terrestrial broadcast of the ATSCdigital television standard in the United States and Canada.How does my 860 DSPi utilize VSB?The 860 DSPi can demodulate an 8VSB or 16VSB signal using the VSB menu. This can be done byconnecting a VHF/UHF antenna to the 860 SLM input port and entering the VSB menu.How can I see if my 860 DSPi supports VSB?The easiest method to see if your 860 DSPi supports VSB is to go to the Information Menu on the SetupTAB. Examine the RF Option Information List and see if you have the option. If you do not, you can callthe factory and purchase the option provided that your meter has the latest firmware installed and youhave any Enhanced Digital Video Board installed. Note: Firmware must be V7.4.1.1 or higher. For Additional Help Contact Trilithic Applications Engineering 860 DSPi VSB 1-800-344-2412 or 317-895-3600 P/N 0010275018 – Rev 5/07 support@trilithic.com or 1 of 2 www.trilithic.com Copyright © 2007 Trilithic, Inc. All Rights Reserved.
    • Application NoteHow do I use the VSB menu?The QAM VSB menu works very similar to the QAM menu without channel plan support. Since the VSBcarriers are usually independent from the cable TV line up, this is more of a user controlled menu. Youselect the center frequency of the VSB carrier, select either 8 VSB or 16 VSB and monitor theconstellation. You can use the DISPLAY button to view the digital video equalizer and even look at BitError Rate over time. For Additional Help Contact Trilithic Applications Engineering 860 DSPi VSB 1-800-344-2412 or 317-895-3600 P/N 0010275018 – Rev 5/07 support@trilithic.com or 2 of 2 www.trilithic.com Copyright © 2007 Trilithic, Inc. All Rights Reserved.