RF Exposure

FCC ID: 2APJ4-SLM756P

RF Exposure Info

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FCCID_4491835

Bay Area Compliance Laboratories Corp.( Kunshan) Report No.: RSHA190708001-00D FCC §15.247 (I) & §1.1310 & §2.1091 - MAXIMUM PERMISSIBLE EXPOSURE (MPE) Applicable Standard According to subpart 15.247 (i) and subpart 1.1310, 2.1091 systems operating under the provisions of this section shall be operated in a manner that ensures the public is not exposed to RF energy level in excess of the communication guidelines. Limits for General Population/Uncontrolled Exposure Frequency Range Electric Field Magnetic Field Power Density Averaging Time (MHz) Strength (V/m) Strength (A/m) (mW/cm2) (minutes) 0.3-1.34 614 1.63 *(100) 30 1.34-30 824/f 2.19/f *(180/f²) 30 30-300 27.5 0.073 0.2 30 300-1500 / f/1500 30 1500-100,000 / 1.0 30 f = frequency in MHz; * = Plane-wave equivalent power density Calculated Formulary: Predication of MPE limit at a given distance S = PG/4πR² = 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, the power gain factor, is normally numeric gain; R = distance to the center of radiation of the antenna (appropriate units, e.g., cm); For simultaneously transmit system, the calculated power density should comply with: FCC Part 27, FCC Part 22H/24E Page 13 of 241

Bay Area Compliance Laboratories Corp.( Kunshan) Report No.: RSHA190708001-00D Calculated Data (worst case): Tune-up Frequency Maximum Evaluation Power MPE Conducted MPE Mode Range Antenna Gain Distance Density Limit Power ratio (MHz) (cm) (mW/cm2) (mW/cm2) (dBi) (numeric) (dBm) (mW) 802.11b 0.00 1.00 19.00 79.43 20 0.0158 1.00 0.0158 802.11g 2412-2462 0.00 1.00 20.00 100.00 20 0.0199 1.00 0.0199 802.11n- 0.00 1.00 18.50 70.79 20 0.0141 1.00 0.0141 HT20 802.11n- 2422-2452 0.00 1.00 17.50 56.23 20 0.0112 1.00 0.0112 HT40 5150~5250 0.00 1.00 12.00 15.85 20 0.0032 1.00 0.0032 5250~5350 0.00 1.00 12.00 15.85 20 0.0032 1.00 0.0032 802.11a 5470~5725 0.00 1.00 12.50 17.78 20 0.0035 1.00 0.0035 5725~5850 0.00 1.00 12.50 17.78 20 0.0035 1.00 0.0035 5150~5250 0.00 1.00 12.50 17.78 20 0.0035 1.00 0.0035 5250~5350 0.00 1.00 11.50 14.13 20 0.0028 1.00 0.0028 802.11n- HT20 5470~5725 0.00 1.00 12.50 17.78 20 0.0035 1.00 0.0035 5725~5850 0.00 1.00 12.50 17.78 20 0.0035 1.00 0.0035 5150~5250 0.00 1.00 9.50 8.91 20 0.0018 1.00 0.0018 5250~5350 0.00 1.00 9.00 7.94 20 0.0016 1.00 0.0016 802.11n- HT40 5470~5725 0.00 1.00 11.50 14.13 20 0.0028 1.00 0.0028 5725~5850 0.00 1.00 11.50 14.13 20 0.0028 1.00 0.0028 BLE 2402-2480 0.00 1.00 1.50 1.41 20 0.0003 1.00 0.0003 BT 3.0 2402-2480 0.00 1.00 11.50 14.13 20 0.0028 1.00 0.0032 FCC Part 27, FCC Part 22H/24E Page 14 of 241

Bay Area Compliance Laboratories Corp.( Kunshan) Report No.: RSHA190708001-00D Calculation of maximum antenna gain based on ERP/EIRP Max Tune-up ERP/EIRP Limit Max Antenna Gain Max Antenna Gain Mode Power (dBm) (dBd) (dBi) (dBm) WCDMA 23.00 33.00 / 10.00 Band II WCDMA 23.00 30.00 / 7.00 Band IV WCDMA 24.00 38.45 14.45 16.60 Band V FDD 22.00 33.00 / 11.00 (Band 2) FDD 22.50 30.00 / 7.00 (Band 4) FDD 22.50 38.45 15.95 18.10 (Band 5) FDD 22.50 33.00 / 10.00 (Band 7) FDD 23.00 34.77 11.77 13.92 (Band 12) FDD 23.00 34.77 11.77 13.92 (Band 13) FDD 23.00 34.77 11.77 13.92 (Band 17) Note:0dBd=2.15dBi Calculation of maximum antenna gain based on MPE Ratio Maximun Frequen Tune-up Power Maximum Evaluation Antenna Gain cy Conducted Density Power MPE Mode Distance Allowed based on Range Power Limit Density ratio MPE (MHz) (dBm) (mW) (mW/cm2) (mW/cm2) (cm) (numeric) (dBi) WCDMA 1850.0- 23.00 199.53 1.00 0.9788 20 24.66 13.92 0.9788 Band II 1910.0 WCDMA 1710.0- 23.00 199.53 1.00 0.9788 20 24.66 13.92 0.9788 Band IV 1755.0 WCDMA 824.0- 24.00 251.19 0.55 0.5619 20 19.59 12.92 0.9788 Band V 849.0 FDD 1850.0- 22.00 158.49 1.00 0.9789 20 31.05 14.92 0.9789 (Band 2) 1910.0 FDD 1710.0- 22.50 177.83 1.00 0.9788 20 22.67 14.42 0.9788 (Band 4) 1755.0 FDD 824.0- 22.50 177.83 0.55 0.5619 20 22.67 14.42 0.9788 (Band 5) 849.0 FDD 2500.0- 22.50 177.83 1.00 0.9788 20 22.67 14.42 0.9788 (Band 7) 2570.0 FDD 699.0- 23.00 199.53 0.47 0.4802 20 24.66 13.92 0.9788 (Band 12) 716.0 FDD 777.0- 23.00 199.53 0.52 0.5313 20 24.66 13.92 0.9788 (Band 13) 787.0 FDD 704.0- 23.00 199.53 0.47 0.4802 20 24.66 13.92 0.9788 (Band 17) 716.0 FCC Part 27, FCC Part 22H/24E Page 15 of 241

Bay Area Compliance Laboratories Corp.( Kunshan) Report No.: RSHA190708001-00D Note: Wi-Fi/ BLE/ BT 3.0& WCDMA/FDD can transmit simultaneously; the worst condition is 802.11b of Wi-Fi & FDD (Band13), as below: =0.0199+0.9789=0.9988 < 1.0 Max Allow Antenna Gain Mode (dBi) WCDMA Band II/LTE Band 2 10.0 WCDMABand IV/ LTE Band 4 7.00 WCDMABand V/ LTE Band 5 12.92 LTE Band 7 10.00 LTE Band 12/ LTE Band 17 13.92 LTE Band 13 13.92 Result: To meet RF exposure & ERP/ERIP, the maximum net gains of antennas allowed are 10dBi@ WCDMA Band II/LTE Band 2 , 7dBi@ WCDMABand IV/ LTE Band 4 , 12.92dBi@ WCDMABand V/ LTE Band 5 ,10.00dBi @LTE Band 7, 13.92dBi @ LTE Band 12/LTE Band 17,13.92dBi @ LTE Band 13. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cmtransmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. FCC Part 27, FCC Part 22H/24E Page 16 of 241


Document Created: 2019-10-26 08:22:31
Document Modified: 2019-10-26 08:22:31
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