MPE Report

FCC ID: W38-HL7588

RF Exposure Info

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FCCID_4168492

MPE CALCULATION FCC ID for Cellular module : N7NHL7588 Wi-Fi module : W38-241083G RFID module : W38-UICFG RF Exposure Requirements: 47 CFR §1. 1307(b) RF Radiation Exposure Limits: 47 CFR §1. 1310 RF Radiation Exposure Guidelines: FCC OST/OET Bulletin Number 65 EUT Frequency Band: 13.56 MHz, 2412-2462 MHz, 5180-5825, 1850MHz-1910MHz,1710MHz to 1755MHz, 824MHZ to 849MHz, 777MHz to 787MHz, 704MHz to716 MHz Limits for General Population/Uncontrolled Exposure in the band of: Frequency Range (MHz) Power Density (mW/cm2) 1,500-100,000 1.0 300-1,500 f/1500 Equation: S = PG / 4πR2 or R = √PG / 4πS Where, S = Power Density P = Power Input to Antenna G = Antenna Gain R = distance to the center of radiated antenna _____________________________________________________________________________________________________________________ RFID: Prediction distance 20cm (RFID 13.56 Hz): Output Power = -21.65 dBm, Antenna Gain = 0 dBi, Power density =0 mW/cm2 CH Freq Max Power Measurement Calculated MPE MPE Limit Type (MHz) (dBm) Distance (cm) (mW/cm2) (mW/cm2) Pass/Fail RFID 13.56 -21.65 20 0.00000137 1 Pass WLAN: Prediction distance 20cm (WLAN 2.4GHz): Output Power = 17.9 dBm, Antenna Gain = 2.5 dBi, Power density =0.0218 mW/cm2 Conducted Antenna Measurement Calculated MPE CH Freq Max Power Type Power Gain Distance MPE Limit (MHz) (dBm) Pass/Fail (dBm) (dBi) (cm) (mW/cm2) (mW/cm2) WLAN 802.11B 2462 17.9 2.5 19.90 20 0.0218 1 Pass 2.4 GHz

(WLAN 5GHz): Output Power = 16.214 dBm, Antenna Gain = 3.5 dBi, Power density =0.0186 mW/cm2 Conducted Antenna Measurement Calculated MPE CH Freq Max Power Type Power Gain Distance MPE Limit (MHz) (dBm) Pass/Fail (dBm) (dBi) (cm) (mW/cm2) (mW/cm2) WLAN 802.11A 5180 16.214 3.5 19.714 20 0.0186 1 Pass 5 GHz WCDMA / LTE: Prediction distance 20cm (WCDMA Band 2 - 1907.6MHz): Conducted Output Power = 27.50 dBm, Antenna Gain = 2 dBi (LTE Band 4 - 1754.3MHz): Conducted Output Power = 26.22 dBm, Antenna Gain = 2 dBi Average Antenna Max Power Measurement Calculated CH Freq Output (dBm) MPE Limit Gain Distance MPE Pass/Fail (MHz) Power (mW/cm2) (dBi) (cm) (mW/cm2) (dBm) WCDMA Band 2 25.50 2 27.50 20 0.1119 1 Pass (1907.6MHz) LTE Band 4 24.22 2 26.22 20 0.0833 1 Pass (1754.3 MHz) If RFID, WLAN (2.4GHz) and WCDMA transmit simultaneously. Total MPE = 0.00000137 mW/cm2 + 0.0218 mW/cm2 + 0.1119 mW/cm2 = 0.1337 mW/cm2 If RFID, WLAN (2.4GHz) and LTE transmit simultaneously. Total MPE = 0.00000137 mW/cm2 + 0.0218 mW/cm2 + 0.0833 mW/cm2 = 0.1051 mW/cm2 If RFID, WLAN (5 GHz) and WCDMA transmit simultaneously. Total MPE = 0.00000137 mW/cm2 + 0.0186 mW/cm2 + 0.1119 mW/cm2 = 0.1305 mW/cm2 If RFID, WLAN (5 GHz) and LTE transmit simultaneously. Total MPE = 0.00000137 mW/cm2 + 0.0186 mW/cm2 + 0.0833 mW/cm2 = 0.1019 mW/cm2 The Above Result had shown that the Device complied with MPE requirement. Completed By: Gary Chou SIEMIC, Inc 775 Montague Expressway, Milpitas, CA 95035 Phone: (408) 526-1188 Date: 12/17/2018


Document Created: 2019-01-28 10:42:03
Document Modified: 2019-01-28 10:42:03
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