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<br />e <br /> <br />. <br /> <br />3.2 Computer Resources <br /> <br />RCC owns and operates numerous in-house computer systems. The hardware is categorized <br />as follows: <br /> <br />· Over 170 Windows based microcomputers. These computers are used for <br />engineering, word processing, financial analysis, terminal emulation and data <br />base management functions. <br /> <br />· 12 Sun Ultra work stations with 21 " SUN monitors. These work stations support <br />a variety of software applications, including our proprietary propagation (radio <br />coverage) analysis system and microwave path design. Each propagation analysis <br />system represents an investment of approximately $150,000. Our Houston office <br />has one of these systems. <br /> <br />· Miscellaneous equipment includes color inkjet plotters, image scanners, LaserJet <br />printers, etc. <br /> <br />RCC maintains a number of in-house databases to assist us in propagation (radio <br />coverage) analysis, radio tower searches, airport searches etc. These databases <br />include: 3 arc second terrain data of the entire U.S., all FCC licensed radio towers in <br />the U.S., and location and layout of all U.S. airports. <br /> <br />3.3 ProDal!ation (Radio Coveral!e) Analvsis <br /> <br />When upgrading an existing radio or mobile data system or developing a new system, <br />propagation (radio coverage) analysis becomes an essential part of the planning and <br />designing process. After evaluating several of the commercially available PC based <br />propagation modeling systems, RCC elected to develop its own in-house analysis system <br />which provides superior performance and includes a number of popular propagation models <br />including Okumura, Okumura Adaptive, Walfish Ikigami, Carey, Bullington, Lee, and <br />Longley-Rice. Our system, known as Romulus, provides propagation (coverage) analysis, <br />frequency reuse (interference) analysis, simulcast system design, terrain path profiling, tower <br />searches, microwave path engineering, and more in a single integrated system. <br /> <br />The Romulus system provides an interactive mobile radio and microwave propagation and <br />terrain analysis tool that allows our staff to effectively analyze radio communication sites and <br />microwave paths. The system can overlay land-mobile coverage predictions on maps of <br />virtually any scale. In addition, it can display the vertical terrain cross-section between any <br />two points on the map. This feature helps analyze terrain problems, such as hills or valleys, <br />that will affect radio coverage. <br /> <br />City of La Porte, TX <br /> <br />Proposal- 2/23/01 <br /> <br />Section 3, Page 4 <br />