8-VSB

(8-level Vestigial SideBand) The modulation technique used for digital TV (DTV) in the U.S. It minimizes interference with analog NTSC signals, which must be transmitted simultaneously with the digital signals until 2006. NTSC uses an analog VSB modulation. See DTV. Contrast with OFDM.

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Elected vice president for a second term is Jerry Massey, CPBE, 8-VSB, AMD, DRB, CBNT of Greenville, S.C.

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Using the ATSC single-carrier transmission (called 8-VSB) causes the digital-TV signal to disappear every time there are multipath interferences (ghosts).

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In addition, as shown at NAB '99, reception of the 8-VSB DTV signal (the single-carrier ATSC characteristic) still poses problems, especially with multipath (creating a ghost effect on analog sets and loss of signal for DTV).

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