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CALCUI.ATIONS� OF RF POWER UENSlTY P�FAR GROUND LEVEL <br />RF Power densities ��re computed in accordance with methods described in <br />Eval!rafion Compli�nce witlr FCC Guidelines for Human Exposure to <br />Radiofreqliency [lectromagneflc i�ie/ds, OET Bulletin 6,5, August 1997. <br />Radio facilities are required to comply with the FCC "R� les 8 Regulations" CFR <br />47 §1.1310, Radlofrsquency radiation exposure llmits. The OET Bulletin 65 <br />describes the methods established by the FCC for predicting compliance with <br />the FCC-specified exposure limits. <br />Compliance is determined by comparing RF field predictions with the general <br />population/uncontrolled environment (i.e., "Public") Maximum Permissible <br />Exposure (MPE) limits allowed by the ��CC rules, as specified in CFR47 <br />�1.4310. The following formula has been used to calculated the power <br />densifies at specific /ocations: <br />S(mW/cm2) = 0.36 x ERP (watts) /(Distance in feet)' <br />This formula is derived from Equation 9 on page 21 of OET Bulletin 65. It <br />includes the effect of ground reflecttons. The Effective Rediated Power <br />(ERP) depends on the vertical antenna pattern. <br />THEORETICAL ANALYSIS <br />According to information supplied by KDC personnel, the proposed panel <br />antennas wiil be mounted and centered at or abuve 150-foot level (tip height). <br />The panel antennas will project the majority of the transmitted RF energ�� <br />horizontally and well above all nearby accessible areas. The followir g <br />theoretical calculations predict the peak exposure condition for a six-foot <br />person standing et the nearest ground-level approach to the transmit antennas. <br />A six-foot tall person standing on the ground rear the SEAQ-GARFILED site <br />would be at least approximately 144 feet below the center lines of all transmit <br />antennas. <br />,/�7 <br />� <br />�_- <br />