RF Exposure Info.

FCC ID: OWS-NIC42

RF Exposure Info

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FCCID_1971976

Sheet1 Silver Spring Networks 900/2400 MHz FHSS /2.4 GHz DTS Radio FCC ID: OWS-NIC42 IC: OWS-NIC42 Calculate mW/cm2 here. Enter frequency in MHz: Calculation of Limits from 1.1310 Table 1 S1 for 900 MHz 0.60 maximum Manual RFx Dist., cm: 20 Controlled Uncontrolled S2 for 2400 MHz 1.00 maximum F(MHz) Actual F, MHz Occ, mW/c2 Gen, mW/cm2 0.3-3 0.5 100.0 100.0 Max RF Power TX Antenna MPE distance S, mW/cm2 at Comment 1 Comment 2 3.0 - 30.0 5 180.0 36.0 P, dBm G, dBi cm Manual RFx Dist. 30.0-300 55 1.0 0.2 300-1500 902 3.0 0.60 29.96 2.50 15.3 0.351 900 MHz FHSS 1500-100000 5805 5.0 1.0 22.41 3.5 5.6 0.078 2.4 GHz FHSS Enter P(mW) Equivalent dBm Enter dBm Equivalent Watts % 900MHz RFx 58.4% % 2.4 GHz RFx 7.8% Total RFx 66.18% Basis of Calculations: 555 27.44 29.52 895.4 E^2/3770 = S, mW/cm2 E, V/m = (Pwatts*Ggain*30)^.5/d, meters d = ((Pwatts*G*30)/3770*S))^0.5 Pwatts*Ggain = 10^(PdBm-30+GdBi)/10) S@dist2 = S@MPEdist(MPE/dist2)^2 NOTE: For mobile or fixed location transmitters, minimum separation distance is for FCC compliance is 20 cm, even if calculations indicate MPE distance is less Page 1


Document Created: 0310-11-02 00:00:00
Document Modified: 0310-11-02 00:00:00
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