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11.H.1. UTILITY SERVICES 452.200 MHZ UHF WASTEWATER <br />RADIO TELEMETRY FREQUENCY - DATA FLOW <br />SYSTEMS, INC. RADIO TELEMETRY UNITS (RTUs) - <br />TELECOM NETWORK, INC. <br />The Board reviewed a Memorandum of May 10, 2002: <br />DATE: MAY 10, 2002 <br />TO: JAMES E CHANDLER, COUNTY ADMINISTRATOR <br />THRU: W. ERIK OLSON, DIRECTOR OF UTILITY SERVICES <br />FROM: GENE A RAUTH, OPERATIONS MANAGER GIS <br />SUBJECT: DEPARTMENT OF UTILITY SERVICES 452.200 MHz <br />UHF WASTEWATER RADIO TELEMETRY FREQUENCY <br />BACKGROUND: <br />The Department of Utility Services currently uses a licensed Federal Communications <br />Commission (FCC), 452.200 MHz UHF radio frequency as part of its wireless telemetry system <br />for the monitoring and control of Countywide wastewater collection / reuse distribution systems. <br />One of the core components of these systems are the 227 radio telemetry units (RUT), <br />manufactured by Data Flow Systems, Inc., of Melbourne, Florida. The 227 RTUs are located <br />throughout the County at various lift stations, collection, and distribution points. The 227 RTU's <br />utilize the 452.200 MHz UHF frequency for two-way communication with the West Regional <br />Wastewater Treatment Facility (WWTF). Since the system was commissioned in 1990, the <br />Department of Utility Services has been utilizing Data Flow Systems, Inc., for technical and <br />product support. <br />In July of 2001, staff requested Data Flow System, Inc.'s assistance in trouble -shooting several <br />minor operation communication problems between the West Regional WWTF, and several of the <br />227 RTU's in the field. Upon review of the radio spectrum on or around the 452.200 MHz UHF <br />frequency, it was discovered that an intermittent, non -Indian River County signal, existed. The <br />intermittent signal is a source of interference, which results in a loss of monitoring and control of <br />the County system. Further investigation by Data Flow Systems, Inc, traced the intermittent <br />signal to a 500 -foot tall tower located in Palm Bay, Florida. Staff has since contacted the FCC, as <br />well as the party responsible for the source of the interference, Telecom Network, Inc., of <br />Birmingham, Alabama. Telecom Network, Inc., is a voice -communication company. <br />Both the FCC and Telecom Network, Inc , have informed staff that the 500 -foot tower located in <br />Palm Bay is properly licensed, and operating legally with the 452.200 MHz UHF frequency. <br />MAY 21, 2002 <br />-66- <br />nu <br />Lit <br />