906 SE EVERETT MALL WAY A T AND T MOBILITY ANTENNAS 2018-01-01 MF Import

Attached as an exhibit are the MPE (Maximum Power Exposura) calculations using the above referenced formula and the antenna manufacturer vertical pattern information using a conservative 20 d6 loss below main lobe. The calculations show that the maximum MPE at ground level (6' above AGL) at the base of the building and the power density is 0.003955 mW/cmz with power levels as provided by AT&T RF Data Sheet. This is 0.7910% of the MPE limit for the general population/uncontrolled exposure of 0.500 mW/cmz as referenced in Table 1 OET Bulletin SS Appendix A for the lowest frequency range. OTHER CARRIER The following are examRles of wireless carriers providing service in Snohomish County: ESMR 851-866 Mhz Nextel Cellular 869-894 Mhz PCS > 1E00 Mhz AT&T, Verizon Sprint, T-Mobile, AT&T �,:.•�:. Nextel facilities will have potentially higher power levels than cellular or PCS facilities. In order to develop a"worst case prediction", it is assumed that Nextel facilities are on the rooftop with maximurti effective radiated power (ERP) levels of 3,000 watts per sector verses 2,000 watts or less for cellular or PCS facilities. Wireless facility antennas are highly directional and project the majority of the RF energy horizontally. Attached as an exhibit are the MPE (Maximum Power Exposure) calculations using the referenced power density formula. ihese calculations assume that tha vertical patterns oi the antennas suppress the ERN by 20dbB towards the antenna base. The calculations show that the maximum total MPE at ground level (6' above AGL) at the base of the building is 0.003087mW/cm2 with the carrier operating at a total ERP of 3,G00 watts per sector. This is 0.5444% of the MPE limit for the general population/uncontrolled exposure of 0.567 mW/cm2 for the lowest Nextel frequency (851/1500) as referenced in Table I OET Bulletin 65 Appendix A. COLOCATED FACILITIES TOTAL MPE The combined MPE for the AT&T Wireless antennas and the existing carrier using "worst r,ase" calculations is: 0.003955 mW/cm2 + 0.003067 mW/cmz = 0.007042 mW/cm2 Total MPE. __� ( 2 � = '� ;.