RF Exposure

FCC ID: SK9M2LG2

RF Exposure Info

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FCCID_2931665

Certification Exhibit FCC ID: SK9M2LG2 FCC Rule Part: 47 CFR Part 2.1091 ACS Project Number: 15-0513 Manufacturer: Itron Electricity Metering, Inc. Model: M2 Gateway2 RF Exposure 5015 B.U. Bowman Drive Buford, GA 30518 USA Voice: 770-831-8048 Fax: 770-831-8598

Model: M2 Gateway2 FCC ID: SK9M2LG2 General Information: Applicant: Itron Electricity Metering, Inc. Device Category: Mobile Environment: General Population/Uncontrolled Exposure The M2 Gateway2 900 MHz LAN is collocated and transmits simultaneously with the M2 Gateway2 Zigbee radio. Technical Information: Table 1: Technical Information Device 1 Details Device 2 Details Itron M2 Itron M2 Gateway2 Gateway2 2.4GHz 900MHz LAN Zigbee Radio Radio IC: 864G-M2LG2 IC: 864G-M2LG2 Frequency Band(s) 902.4 - 927.6 2405 - 2475 (MHz) 1/4 Wave 1/4 Wave Antenna Type(s) Embedded Slot Embedded Slot Antenna Antenna Antenna Gain 2.2 3.8 (dBi) Conducted Power 27.18 17.5 (dBm) Conducted Power 522.40 56.23 (mW) Maximum Peak 866.96 134.90 EIRP (mW) Maximum Peak ERP 528.45 82.22 (mW) ACS Project: 15-0513 Advanced Compliance Solutions Page 2

Model: M2 Gateway2 FCC ID: SK9M2LG2 MPE Calculation: The Power Density (mW/cm2) is calculated as follows: PG S= 4πR 2 Where: S = power density (in appropriate units, e.g. mW/cm2) P = power input to the antenna (in appropriate units, e.g., mW) G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna (appropriate units, e.g., cm) Table 2: MPE Calculation (Including Collocated Devices) Power Antenna Transmit Radio Radio Antenna Power Density Gain Distance Frequency Power Limit Power Gain (mW (cm) Density Radio (MHz) (dBm) (mW) (dBi) (mW/cm^2) (mW/Cm2) eq.) 927.6 27.18 0.62 522.40 2.2 1.660 20 0.172 A 2475 17.5 1.00 56.23 3.8 2.399 20 0.027 B Summation of MPE ratios – Simultaneous Transmissions This device contains multiple transmitters which can operate simultaneously; therefore the maximum RF exposure is determined by the summation of MPE ratios. The limit is such that the summation of MPE ratios is ≤ 1.0. Table 3: Summation of MPE Ratios Scenario 1 Scenario 2 Radio A x Radio B x Radio A MPE Ratio 0.278907802 Radio B MPE Ratio 0.026836764 MPE Ratio Summation: 0.305744566 ACS Project: 15-0513 Advanced Compliance Solutions Page 3


Document Created: 2016-02-22 14:37:49
Document Modified: 2016-02-22 14:37:49
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