2420 39TH ST SPRINT ANTENNA 2018-04-17

the base of the monopole and the power density is 0.00077 mW/cm2 with an assumed power level of 2,000 watts. This is 0.1444% of the MPE limit for the general population/uncontrolled exposure of 0.533 mW/cm2 as referenced in Table I OET Bulletin 65 Appendix A for the lowest frequency range. OTHER CARRIERS The following are examples of wireless carriers providing service in Snohomish County: ESMR 851-866 Mhz Nextel Cellular 869-894 Mhz AT&T, Verizon PCS > 1800 Mhz Sprint, T-Mobile, AT&T In order to develop a "worst case prediction", it is assumed that all other wireless facilities on the monopole have maximum effective radiated power (ERP) levels of and 2,000 watts for the wireless carrier panel antennas. Wireless facility antennas are highly directional and project the majority of the RF energy horizontally. Attached as an exhibit are the MPE (Maximum Permissible Exposure) calculations using the referenced power density formula. These calculations assume that the vertical patterns of the antennas suppress the ERP by 20 dB towards the antenna base. The calculations show that the maximum total MPE at ground level (6' above AGL) at the base of the monopole is 0.003081 mW/cm2. This is 0.6597% of the MPE limit for the general population/uncontrolled exposure of 0.467 mW/cm2 for the lowest frequency (700/1500) as referenced in Table I OET Bulletin 65 Appendix A. COLOCATED FACILITIES TOTAL MPE The combined MPE for the Sprint antennas and the existing carriers using "worst case" calculations is: 0.0077 mW/cm2 + 0.003081 mW/cm2 = 0.003851 mW/cm2 Total MPE. ENVIRONMENTAL EVALUATION Routine environmental evaluation is required if the PCS broadband facility is less than 10 m (32.81 feet) AGL and has a total power of all channels in any given