Redesigned, Integrated Modulator Offers DTV Broadcast Solutions

Apr 23, 2001, 01:00 ET from Zenith Electronics Corporation

    LAS VEGAS, April 23 /PRNewswire Interactive News Release/ -- Helping
 digital television (DTV) broadcasters get on the air quickly and affordably,
 Zenith Electronics Corporation today unveiled the 1RU, a uniquely space-
 efficient ATSC DTV broadcast modulator designed to offer enhanced distortion
 pre-correction.
     (Photo:  http://www.newscom.com/cgi-bin/prnh/19981120/CGF017 )
     Zenith, whose engineers invented the ATSC VSB (vestigial sideband)
 modulation system, is demonstrating its new modulator at NAB 2001, the annual
 convention of the National Association of Broadcasters this week.  With its
 sleek, integrated design, the new Zenith modulator occupies only about
 one-fourth the rack space of its predecessors.
     Zenith's ATSC broadcast modulator creates an 8-VSB Trellis encoded signal
 from an ATSC MPEG encoded bit stream.  The modulated signal uses a standard 44
 MHz intermediate frequency (I/F) output which is upconverted to the desired
 channel and used by any digital transmitter for terrestrial broadcast.  Its
 I/F output can also be used by standard cable upconverters for private network
 applications, including factory or laboratory test and development of
 ATSC-compliant receiving devices.
     Zenith engineers have developed enhanced features in the modulator which
 allow linear and non-linear pre-correction for amplitude and phase errors,
 common in high power transmitters.
     Standard features include ATSC-compliant 8-VSB and Trellis encoded
 modulation; ATSC-compliant 16-VSB modulation for high data rate applications
 in private networks; SMPTE 310M standard digital bit stream input; standard 44
 MHz I/F output (center of channel); microprocessor control on board;
 pre-correction circuits built into the system; and a one-year warranty.
     Among the optional features are remote PC connectivity software and
 pre-correction analysis software (when used with third-party test equipment).
 The new modulator is the newest in Zenith's family of ATSC broadcast products
 on display at NAB 2001, products including Zenith's ATSC professional
 demodulator, ATSC professional decoder, ATSC PSIP-enhanced VSB translator and
 ATSC PSIP-enhanced DTV cable transcoder.
     Zenith Electronics Corporation, based in Lincolnshire, Ill., is a
 long-time leader in consumer electronics and a primary developer of digital
 high-definition television (HDTV) technology.  Zenith developed the VSB
 digital transmission system adopted by the FCC as part of the ATSC DTV
 standard.  To assist broadcasters in the rollout of digital television
 service, Zenith offers a full line of digital broadcast products, including
 ATSC modulators, demodulators, translators and receivers.  Zenith is a wholly
 owned subsidiary of LG Electronics Inc.  Visit Zenith on the World Wide Web at
 www.zenith.com .
 
                     MAKE YOUR OPINION COUNT -  Click Here
                http://tbutton.prnewswire.com/prn/11690X68745879
 
 

SOURCE Zenith Electronics Corporation
    LAS VEGAS, April 23 /PRNewswire Interactive News Release/ -- Helping
 digital television (DTV) broadcasters get on the air quickly and affordably,
 Zenith Electronics Corporation today unveiled the 1RU, a uniquely space-
 efficient ATSC DTV broadcast modulator designed to offer enhanced distortion
 pre-correction.
     (Photo:  http://www.newscom.com/cgi-bin/prnh/19981120/CGF017 )
     Zenith, whose engineers invented the ATSC VSB (vestigial sideband)
 modulation system, is demonstrating its new modulator at NAB 2001, the annual
 convention of the National Association of Broadcasters this week.  With its
 sleek, integrated design, the new Zenith modulator occupies only about
 one-fourth the rack space of its predecessors.
     Zenith's ATSC broadcast modulator creates an 8-VSB Trellis encoded signal
 from an ATSC MPEG encoded bit stream.  The modulated signal uses a standard 44
 MHz intermediate frequency (I/F) output which is upconverted to the desired
 channel and used by any digital transmitter for terrestrial broadcast.  Its
 I/F output can also be used by standard cable upconverters for private network
 applications, including factory or laboratory test and development of
 ATSC-compliant receiving devices.
     Zenith engineers have developed enhanced features in the modulator which
 allow linear and non-linear pre-correction for amplitude and phase errors,
 common in high power transmitters.
     Standard features include ATSC-compliant 8-VSB and Trellis encoded
 modulation; ATSC-compliant 16-VSB modulation for high data rate applications
 in private networks; SMPTE 310M standard digital bit stream input; standard 44
 MHz I/F output (center of channel); microprocessor control on board;
 pre-correction circuits built into the system; and a one-year warranty.
     Among the optional features are remote PC connectivity software and
 pre-correction analysis software (when used with third-party test equipment).
 The new modulator is the newest in Zenith's family of ATSC broadcast products
 on display at NAB 2001, products including Zenith's ATSC professional
 demodulator, ATSC professional decoder, ATSC PSIP-enhanced VSB translator and
 ATSC PSIP-enhanced DTV cable transcoder.
     Zenith Electronics Corporation, based in Lincolnshire, Ill., is a
 long-time leader in consumer electronics and a primary developer of digital
 high-definition television (HDTV) technology.  Zenith developed the VSB
 digital transmission system adopted by the FCC as part of the ATSC DTV
 standard.  To assist broadcasters in the rollout of digital television
 service, Zenith offers a full line of digital broadcast products, including
 ATSC modulators, demodulators, translators and receivers.  Zenith is a wholly
 owned subsidiary of LG Electronics Inc.  Visit Zenith on the World Wide Web at
 www.zenith.com .
 
                     MAKE YOUR OPINION COUNT -  Click Here
                http://tbutton.prnewswire.com/prn/11690X68745879
 
 SOURCE  Zenith Electronics Corporation