ATI introduces QAM digital radio product family.WILMINGTON, Mass.--(BUSINESS WIRE)--June 3, 1997-- Features Industry's Smallest Digital Interface Unit and Flexible Configurations Advanced TechCom, Inc. (ATI (ATI Technologies Inc., Markham Ontario, http://ati.amd.com) A leading manufacturer of graphics chips and display adapters. Founded in 1985 by K. Y. Ho, Benny Lau and Lee Lau, ATI chips and boards are widely used by OEMs. ), a leader in digital microwave radios, today introduced its Quadrature Amplitude Modulation See QAM. Quadrature Amplitude Modulation - (QAM) A method for encoding digital data in an analog signal in which each combination of phase and amplitude represents one of sixteen four bit patterns. This is required for fax transmission at 9600 bits per second. (QAM (1) (Quality Assessment Measurement) A system used to measure and analyze voice transmission. (2) (Quadrature Amplitude Modulation) A modulation technique that employs both phase modulation (PM) and amplitude modulation (AM). ) family of digital microwave radios. Covering frequency bands from 6 to 11 GHz and data rates from 4DS1 to DS3, ATI's QAM product portfolio is an ideal match for long-haul wireless applications including PCS (1) (Personal Communications Services) Refers to wireless services that emerged after the U.S. government auctioned commercial licenses in 1994 and 1995. This radio spectrum in the 1. , cellular, utilities, government and private corporate networks. ATI introduces the industry's smallest Digital Interface Unit (DIU Diu, India: see Daman and Diu. ). While other DIUs on the market require space of seven rack units or more, ATI's DIU fits into a single rack unit which is particularly important for space-constrained installations. ATI has achieved this level of integration due to the development of a proprietary ASIC (Application Specific Integrated Circuit) Pronounced "a-sick." A chip that is custom designed for a specific application rather than a general-purpose chip such as a microprocessor. which dramatically increases the reliability of the system. "ATI's strategy includes a flexible product platform that provides customers with a full array of options when building their networks," said Dr. Ernie Lin, president and chief executive officer of ATI. "ATI's new QAM product line capitalizes upon the growing industry trend towards spectral efficiency in both backbone and spur applications. Additionally, ATI's QAM radio architecture is supported by the common subsystems found in our existing FSK (Frequency Shift Keying) A simple digital modulation technique that uses two frequencies for 0 and 1. See frequency modulation. + and COMPACT product lines." ATI's QAM radios enable users to transmit video, voice and data across wireless point-to-point microwave communication links. ATI's QAM family offers users considerable flexibility with features that allow ease of use. Depending upon the frequency congestion The condition of a network when there is not enough bandwidth to support the current traffic load. congestion - When the offered load of a data communication path exceeds the capacity. in a given area, ATI's QAM portfolio allows customers to select less populated frequency bands. The radio also provides a variety of network management options that ease installation, performance monitoring and maintenance. For added flexibility in space constrained installations, ATI's QAM Radio Frequency Unit (RFU) is available as an indoor or outdoor unit. Only a single cable is needed to connect the indoor DIU to the outdoor RFU. The outdoor RFU has gained considerable favor among customers looking to avoid expensive waveguide costs. Once installed, ATI's QAM radios become seamlessly integrated into the network. ATI's QAM offers non-protected, protected and space diversity configurations. The radio efficiently transmits digital data over narrow frequency channels utilizing forward error correction A communications technique that can correct bad data on the receiving end. Before transmission, the data are processed through an algorithm that adds extra bits for error correction. If the transmitted message is received in error, the correction bits are used to repair it. (FEC), errorless 1 + 1 protection switching, adaptive equalization and the latest advancements in ASICs. The QAM radio's fault tolerant and error-free hot standby switching capabilities provide users of copper and fiber-optic lines with a cost-effective, high-performance digital distribution alternative. ATI has installed initial QAM systems in applications ranging from international utility suppliers to large North American cellular providers. ATI's QAM product line is currently available through ATI's worldwide resellers, distributors and channel partners. Headquartered in Wilmington, Mass., ATI is a privately held company privately held company A firm whose shares are held within a relatively small circle of owners and are not traded publicly. that designs, manufactures and markets digital microwave radios for point-to-point transmission of video, data and voice. The company's FSK+, COMPACT and QAM product lines target virtually all wireless markets including telecom, cellular/PCS/PCN, utilities and government. ATI offers a wide range of data rates and transmit frequencies. ATI is committed to manufacturing the world's highest performance and technologically advanced digital radios that comply with applicable FCC/ITU standards and meet ISO (1) See ISO speed. (2) (International Organization for Standardization, Geneva, Switzerland, www.iso.ch) An organization that sets international standards, founded in 1946. The U.S. member body is ANSI. 9001 quality guidelines. For additional information on ATI, visit their Web site at http://www.atiradio.com . CONTACT: Anne Buckley Marcia Goff/Michael Goff Advanced TechCom, Inc. Goff Communications 508-694-3017 (USA) 508-429-0788 (USA) abuckley@atiradio.com mkgoff@ultranet.com |
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