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COMARK: Another First In Digital.


CHARLOTTE, N.C.--(BUSINESS WIRE)--Sept. 10, 1998--COMARK announced today that digital station WBTV-DT, owned by Jefferson-Pilot Communications, was on the air with 1,000,000 watts ERP (Enterprise Resource Planning) An integrated information system that serves all departments within an enterprise. Evolving out of the manufacturing industry, ERP implies the use of packaged software rather than proprietary software written by or for one customer. . This is the highest power allowed under current FCC (1) (Federal Communications Commission, Washington, DC, www.fcc.gov) The U.S. government agency that regulates interstate and international communications including wire, cable, radio, TV and satellite. The FCC was created under the U.S.  policy, and commenced on September 4th at 5:00PM. WBTV-DT is the first digital station in the country to be "on-the-air" at this FCC licensed maximum power. It was noted that the station is operating with a system which is fully compliant with regards to applicable specifications, including FCC "mask" rejection criteria for adjacent channel. This compliance, as well as superior final system SNR See signal-to-noise ratio.

SNR - signal-to-noise ratio
 performance of better than 31dB into the antenna, was enabled by advanced Digital Adaptive Precorrection (DAP(TM)) circuitry supplied by COMARK, a standard feature in all of its digital product line.

Richard Fiore, Vice President of Sales for COMARK stated "COMARK is extremely pleased to be partners with the WBTV WBTV Weather Briefing Television  engineering staff to demonstrate yet another first in Digital Television (DTV (Digital TeleVision) Transmitting TV using digital signals. The major DTV standards are ATSC (North America), DVB (Europe) and ISDB (Japan). All three use MPEG-2 video compression and Dolby Digital audio compression. DVB and ISDB also include MPEG audio compression. ). The operating performance of the transmitter and its specifications at these power levels is the result of extensive research and development. Part of COMARK's commitment to broadcasters has always been our ability to bring creative and technologically advanced products to meet present and future needs. This system, with its all digital 8-VSB modulator and DAP(TM), puts out great signals and automatically maintains optimum correction to compensate for variations in transmitter performance. This is a significant improvement over conventional correction methods, and one that separates us from all the other transmitter manufacturers."

COMARK is supplying Jefferson-Pilot's WBTV-DT with a 100kW capable ATSC (Advanced Television Systems Committee) An international digital television (DTV) standard adopted by the U.S., Canada, South Korea, Taiwan and Argentina.  compliant "Advantage(TM)" four (4) tube IOT IOT In Order To
IOT Index-Organized Table
IOT British Indian Ocean Territory (ISO 3-letter country code)
IOT Interoperability Testing
IOT Initial Operational Test
IOT In-Orbit Test
 transmitter system configured and engineered to meet all of the operational needs of this station. COMARK is the first transmitter supplier to commercially demonstrate specification compliant performance at the 25kW (per tube) power level.

Being ATSC compliant, this transmitter system supports various video formats (HDTV (High Definition TV) A set of digital television (DTV) standards that offer the highest resolution and sharpest picture. Although some HDTV sets are available in standard (rather square) screen sizes, the overwhelming majority of sets are wide screen, which eliminates  and SDTV (Standard Definition TV) A set of digital television (DTV) standards with 480 lines of resolution. All SDTV formats are interlaced, and SDTV pictures are not as sharp as progressive scan EDTV or HDTV (Enhanced Definition or High Definition).

SDTV Vs.
), data broadcasting, and other related data inputs. The system is currently operating for tests "on-the-air" with digital video content provided by a Mitsubishi MH1100E HDTV (4:2:0) encoder and a Dolby DP569 AC-3 encoder providing digital audio content.

Jefferson-Pilot Communications is a subsidiary of Jefferson-Pilot Corporation, a holding company whose stock is traded on the New York Stock Exchange New York Stock Exchange (NYSE)

World's largest marketplace for securities. The exchange began as an informal meeting of 24 men in 1792 on what is now Wall Street in New York City.
 (JP). Jefferson-Pilot Communications owns and operates three network television stations, 17 radio stations, and a sports production and syndication division, Jefferson Pilot Sports.

COMARK Communications, Inc., a member of the ATSC, is an Emmy award winner and recognized leader in high power UHF terrestrial broadcasting. Comark Digital Services (CDS) is a division of COMARK and is helping broadcasters develop and implement successful strategies for digital television. CDS offers broadcasters a variety of services including strategic planning, consulting, systems design, innovative products and complete turnkey systems integration. COMARK is a member of the Thomcast organization, which ranks as the largest terrestrial broadcasting product and service organization in the world.

    CONTACT: COMARK (USA)
              Mark Aitken, 413/569-0116 x218
              maitken@comarkcom.com


COPYRIGHT 1998 Business Wire
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 1998, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Publication:Business Wire
Article Type:Article
Geographic Code:1USA
Date:Sep 10, 1998
Words:497
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