RF Exposure Report (MPE)

FCC ID: 2ASEF-PMA10

RF Exposure Info

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FCCID_4163699

Page 1 of 17 Report No.: S18112901801003 FCC Maximum Permissible RF Exposure (MPE) Estimation Report In accordance with the requirements of FCC 47 CFR Part 2(2.1091), ANSI/IEEE C95.1-1992 and KDB 447498 D01 Product Name PMA Trademark N/A Model Name PMA1.0 Family Model N/A Report No. S18112901801003 FCC ID 2ASEF -PMA10 Prepared for Beijing Roobo Technology Co., Ltd. Room 5-128, B1, Building C, Galaxy SOHO, Dongcheng District, Beijing, China Prepared by Shenzhen NTEK Testing Technology Co., Ltd. 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street, Bao’an District, Shenzhen 518126 P.R.China. Tel.: +86-755-6115 9388 Fax.: +86-755-6115 6599 Website: http://www.ntek.org.cn Report Revision 1.0

Page 2 of 17 Report No.: S18112901801003 TEST RESULT CERTIFICATION Applicant’s name ................. : Beijing Roobo Technology Co., Ltd. Room 5-128, B1, Building C, Galaxy SOHO, Dongcheng District, Beijing, Address ................................. : China Manufacturer's Name .......... : Beijing Roobo Technology Co., Ltd. Room 5-128, B1, Building C, Galaxy SOHO, Dongcheng District, Beijing, Address ................................. : China Product description Product name ........................ : PMA Trademark ........................... : N/A Model and/or type reference : PMA1.0 Family Model ......................... : N/A FCC 47 CFR Part 1(1.1310) FCC 47 CFR Part 2(2.1091) Standards ............................. : ANSI/IEEE C95.1-1992 KDB 447498 D01 This device described above has been tested by Shenzhen NTEK. Testing has shown that this device is capable of compliance with MPE specified in FCC 47 CFR Part 2(2.1091) and ANSI/IEEE C95.1-1992. The test results in this report apply only to the tested sample of the stated device/equipment. Other similar device/equipment will not necessarily produce the same results due to production tolerance and measurement uncertainties. This report shall not be reproduced except in full, without the written approval of Shenzhen NTEK, this document may be altered or revised by Shenzhen NTEK, personal only, and shall be noted in the revision of the document. Date of Test Date (s) of performance of tests ............. : 29 Nov. 2018 ~ 05 Jan. 2019 Date of Issue .......................................... : 06 Jan. 2019 Test Result .............................................. : Pass Prepared By : (Test Engineer) (Cheng Jiawen) Approved By : (Lab Manager) (Sam Chen) Report Revision 1.0

Page 3 of 17 Report No.: S18112901801003 Revision History REV. DESCRIPTION ISSUED DATE REMARK Rev.1.0 Initial Test Report Release Jan. 06, 2019 Cheng Jiawen Report Revision 1.0

Page 4 of 17 Report No.: S18112901801003 TABLE OF CONTENTS 1 General Information ............................................................................................................................... 5 1.1 RF Exposure Requirements ..................................................................................................... 5 1.1.1 RF Exposure Limits ........................................................................................................... 5 1.1.2 Additional Description ........................................................................................................ 6 1.2 EUT Description ....................................................................................................................... 7 1.3 Test specification(s) .................................................................................................................. 8 1.4 Ambient Condition .................................................................................................................... 8 2 RF Output Power ................................................................................................................................... 9 2.1 Test Equipment List .................................................................................................................. 9 2.2 RF Output Power...................................................................................................................... 9 2.2.1 WIFI Output Power ............................................................................................................ 9 3 RF Exposure Evaluation ...................................................................................................................... 14 3.1 Operation in WLAN 2.4G FOR SISO MODE .......................................................................... 14 3.2 Operation in WLAN 5.2G FOR SISO MODE .......................................................................... 14 3.3 Operation in WLAN 5.3G FOR SISO MODE .......................................................................... 14 3.4 Operation in WLAN 5.6G FOR SISO MODE .......................................................................... 15 3.5 Operation in WLAN 5.8G FOR SISO MODE .......................................................................... 15 4 Exposure calculations for multiple sources .......................................................................................... 16 4.1 Estimation for WLAN MIMO 2.4G ........................................................................................... 16 4.2 Estimation for WLAN MIMO 5.2G ........................................................................................... 16 4.3 Estimation for WLAN MIMO 5.3G ........................................................................................... 17 4.4 Estimation for WLAN MIMO 5.6G ........................................................................................... 17 4.5 Estimation for WLAN MIMO 5.8G ........................................................................................... 17 Report Revision 1.0

Page 5 of 17 Report No.: S18112901801003 1 General Information 1.1 RF Exposure Requirements 1.1.1 RF Exposure Limits Table - Limits For Maximum Permissible Exposure (MPE) Frequency range Electric field Magnetic field Power density Averaging time 2 (MHz) strength (V/m) strength (A/m) (mW/cm ) (minutes) (A) Limits for Occupational/Controlled Exposure 0.3-3.0 614 1.63 *100 6 2 3.0-30 1842/f 4.89/f *900/f 6 30-300 61.4 0.163 1.0 6 300-1,500 f/300 6 1,500-100,000 5 6 (B) Limits for General Population/Uncontrolled Exposure 0.3-1.34 614 1.63 *100 30 2 1.34-30 824/f 2.19/f *180/f 30 30-300 27.5 0.073 0.2 30 300-1,500 f/1500 30 1,500-100,000 1.0 30 f = frequency in MHz * = Plane-wave equivalent power density A rough estimation of the expected exposure in power flux density on a given point can be made with the following equation: Where: S = Power density (mW/cm2) Pt = Conducted output power Gt = numeric gain of the antenna in the direction of interest relative to an isotropic radiator (dBi) R= distance to the centre of radiation of the antenna (cm) EIRP = Pt * Gt The antenna of the product, under normal use condition is at least 20 cm away from the body of the user. Warning statement to the user for keeping at least 20cm separation distance and the prohibition of operating to a person has been printed on the user’s manual. Therefore, the S of the device is calculated with R=20cm, and if it is below the limit S, then we can conclude the device complies with the rules. Report Revision 1.0

Page 6 of 17 Report No.: S18112901801003 1.1.2 Additional Description An estimation of MPE in this application for product is used to ensure if it complies to the rules of the standard in the regulation list above. Maximum permissible exposure (MPE) refers to the RF energy that is acceptable for human exposure. It is broken down into two categories, Occupational/controlled and General population/uncontrolled. Occupational/controlled limits apply in situations in which persons are exposed as a consequence of their employment provided those persons are fully aware of the potential for exposure and can exercise control over their exposure. Limits for occupational/controlled exposure also apply in situations when an individual is transient through a location where occupational/controlled limits apply provided he or she is made aware of the potential for exposure. General population/uncontrolled exposures apply in situations in which the general public may be exposed, or in which persons that are exposed as a consequence of their employment may not be fully aware of the potential for exposure or cannot exercise control over their exposure. We analysis if it comply with the limits for General population/uncontrolled exposure. The FCC’s MPE limits for field strength and power density are given in 47CFR 1.1310(Table below).These limits are generally based on recommended exposure guidelines published by the National Council on Radiation Protection and Measurements (NCRP), and also partly based on guidelines recommended by the American National Standards Institute (ANSI) in Section 4.1 of ANSI/IEEE C95.1. Report Revision 1.0

Page 7 of 17 Report No.: S18112901801003 1.2 EUT Description Device Information Product Name PMA Trade Name N/A Model Name PMA1.0 Family Model N/A FCC ID 2ASEF -PMA10 Device Phase Identical Prototype Exposure Category General population / Uncontrolled environment Antenna Type See Note 1 Antenna Gain See Note 1 Device Operating Configurations 802.11b/g/a/AC(20MHz channel bandwidth) IEEE 802.11 WLAN 802.11n/AC(20MHz channel bandwidth) Mode Supported 802.11n/AC(40MHz channel bandwidth) 802.11AC(80MHz channel bandwidth) OFDM with BPSK/QPSK/16QAM/64QAM/256QAM Modulation for 802.11a/n/ac; SISO for 802.11a/ b/g Smart system MIMO for 802.11n/ac Operating Frequency 2412-2462MHz for 802.11b/g/11n(HT20); Range 2422-2452 MHz for 802.11n(HT40) U-NII-1: 5150 MHz ~5250MHz U-NII-2A: 5250MHz~5350MHz U-NII-2C: 5470MHz~5725MHz U-NII-3: 5725 MHz ~5825 MHz Note 1: The EUT has two of antenna. Model Name Antenna Antenna Gain(dBi) Antenna Brand Connector (P/N) Type 2.4G 5.0G A(main) N/A JT803 FPC ECT Conn 4.34 4.76 B(aux) N/A JT803 FPC ECT Conn 4.34 476 For MIMO mode , Directional gain=[ GANT + 10 log(NANT)] dBi =7.35dbi in 2.4GHz Directional gain=[ GANT + 10 log(NANT)] dbi =7.77dbi in 5.0GHz 802.11n/ac has MIMO mode. Note: GA means antenna gain for ANT A in Num. GB means antenna gain for ANT B in Num. Report Revision 1.0

Page 8 of 17 Report No.: S18112901801003 1.3 Test specification(s) FCC 47 CFR Part 1(1.1310) FCC 47 CFR Part 2(2.1091) ANSI/IEEE C95.1-1992 KDB 447498 D01 General RF Exposure Guidance 1.4 Ambient Condition Ambient temperature 20°C – 24°C Relative Humidity 30% – 70% Report Revision 1.0

Page 9 of 17 Report No.: S18112901801003 2 RF Output Power 2.1 Test Equipment List Calibration Manufacturer Name of Equipment Type/Model Serial Number Last Cal. Due Date Agilent Power Meter DARE/ RPR3006W 15I00041SNO84 2018.08.05 2019.08.04 2.2 RF Output Power 2.2.1 WIFI Output Power 2.4G WIFI: Duty Cycle Peak Output Test Frequency Total LIMIT Power Setting Factor Power(dBm) Verdict Channel (MHz) (dBm) (dB) ANT A ANT B (dBm) 802.11b 1 2412 Default 0 14.80 13.90 - - 26.21 PASS 6 2437 Default 0 14.80 14.40 - - 26.21 PASS 11 2462 Default 0 14.80 14.40 - - 26.21 PASS 802.11g 1 2412 Default 0 12.40 11.50 - - 26.21 PASS 6 2437 Default 0 12.40 11.90 - - 26.21 PASS 11 2462 Default 0 12.50 11.90 - - 26.21 PASS 802.11n HT20 1 2412 Default 0 11.10 10.30 13.73 26.21 PASS 6 2437 Default 0 11.20 10.70 13.97 26.21 PASS 11 2462 Default 0 11.50 10.70 14.13 26.21 PASS 802.11n HT40 3 2422 Default 0 11.70 10.80 14.28 26.21 PASS 6 2437 Default 0 11.70 11.00 14.37 26.21 PASS 9 2452 Default 0 11.80 11.40 14.61 26.21 PASS Report Revision 1.0

Page 10 of 17 Report No.: S18112901801003 TX (5.2G) Mode Frequency Band 1 (5150-5250MHz): Maximum output power. Antenna Total Power Frequency LIMIT Test Channel port Result (AV) (dBm) (AV) (MHz) ANT A ANT B dBm dBm TX 802.11a Mode CH36 5180 10.70 10.90 - 20.19 Pass CH40 5200 10.60 10.90 - 20.19 Pass CH48 5240 10.80 10.80 - 20.19 Pass TX 802.11 n20M Mode CH36 5180 9.80 9.50 12.66 20.19 Pass CH40 5200 9.90 9.60 12.76 20.19 Pass CH48 5240 9.70 9.10 12.42 20.19 Pass TX 802.11 n40M Mode CH38 5190 8.50 8.10 11.31 20.19 Pass CH46 5230 8.40 8.00 11.21 20.19 Pass TX 802.11 AC20M Mode CH36 5180 7.10 6.90 10.01 20.19 Pass CH40 5200 7.10 6.50 9.82 20.19 Pass CH48 5240 7.00 6.40 9.72 20.19 Pass TX 802.11 AC40M Mode CH38 5190 6.20 5.90 9.06 20.19 Pass CH46 5230 6.50 5.80 9.17 20.19 Pass TX 802.11 AC80M Mode CH42 5210 5.10 4.80 7.96 20.19 Pass Report Revision 1.0

Page 11 of 17 Report No.: S18112901801003 TX (5.3G) Mode Frequency Band 2A (5250-5350MHz): Maximum output power. Antenna Total Power Frequency port LIMIT Test Channel Result (AV) (dBm) (AV) (MHz) ANT A ANT B dBm dBm TX 802.11a Mode CH52 5260 11.10 10.80 - 19.14 Pass CH56 5280 11.00 10.90 - 19.12 Pass CH64 5320 11.20 10.70 - 19.16 Pass TX 802.11 n20M Mode CH52 5260 9.70 9.60 12.66 19.19 Pass CH56 5280 9.80 9.50 12.66 19.18 Pass CH64 5320 9.50 9.50 12.51 19.14 Pass TX 802.11 n40M Mode CH54 5270 8.50 8.40 11.46 20.19 Pass CH62 5310 8.60 8.50 11.56 20.19 Pass TX 802.11 AC20M Mode CH52 5260 9.50 9.40 12.46 19.11 Pass CH56 5280 9.60 9.50 12.56 19.12 Pass CH64 5320 9.40 9.40 12.41 19.15 Pass TX 802.11 AC40M Mode CH54 5270 6.60 6.30 9.46 20.19 Pass CH62 5310 6.50 6.20 9.36 20.19 Pass TX 802.11 AC80M Mode CH58 5290 5.50 5.00 8.27 20.19 Pass Report Revision 1.0

Page 12 of 17 Report No.: S18112901801003 TX (5.6G) Mode Frequency Band 2C (5470MHz~5725MHz): Maximum output power. Antenna Total Power Frequency port LIMIT Test Channel Result (AV) (dBm) (AV) (MHz) ANT A ANT B dBm dBm TX 802.11a Mode CH100 5500 10.90 10.80 - 19.10 Pass CH120 5600 10.80 10.50 - 19.71 Pass CH140 5700 10.80 10.60 - 19.12 Pass TX 802.11 n20M Mode CH100 5500 10.30 10.10 13.21 19.19 Pass CH120 5600 10.50 10.20 13.36 19.24 Pass CH140 5700 9.60 9.50 12.56 19.38 Pass TX 802.11 n40M Mode CH102 5510 9.00 8.20 11.63 20.19 Pass CH118 5590 9.20 8.50 11.87 20.19 Pass CH134 5670 9.50 8.60 12.08 20.19 Pass TX 802.11 AC20M Mode CH100 5500 8.50 8.20 11.36 19.16 Pass CH120 5600 8.60 8.30 11.46 19.15 Pass CH140 5700 8.50 8.30 11.41 19.16 Pass TX 802.11 AC40M Mode CH102 5510 6.50 6.50 9.51 20.19 Pass CH118 5590 6.30 6.40 9.36 20.19 Pass CH134 5670 6.80 6.70 9.76 20.19 Pass TX 802.11 AC80M Mode CH 106 5530 5.40 5.50 8.46 20.19 Pass Report Revision 1.0

Page 13 of 17 Report No.: S18112901801003 TX (5.8G) Mode Frequency Band 3 (5725-5825MHz): Maximum output power. Antenna Total Power Frequency port LIMIT Test Channel Result (AV) (dBm) (AV) (MHz) ANT A ANT B dBm dBm TX 802.11a Mode CH149 5745 10.50 10.20 - 26.21 Pass CH157 5785 10.30 10.10 - 26.21 Pass CH165 5825 10.60 9.80 - 26.21 Pass TX 802.11 n20M Mode CH149 5745 9.70 9.30 12.51 26.21 Pass CH157 5785 9.50 9.40 12.46 26.21 Pass CH165 5825 9.80 9.50 12.66 26.21 Pass TX 802.11 n40M Mode CH151 5755 8.50 9.00 11.77 26.21 Pass CH159 5795 8.60 8.90 11.76 26.21 Pass TX 802.11 AC20M Mode CH149 5745 7.90 9.20 11.61 26.21 Pass CH157 5785 8.20 9.30 11.80 26.21 Pass CH165 5825 8.10 9.60 11.92 26.21 Pass TX 802.11 AC40M Mode CH151 5755 6.00 5.80 8.91 26.21 Pass CH159 5795 6.10 6.00 9.06 26.21 Pass TX 802.11 AC80M Mode CH155 5775 5.00 5.00 8.01 26.21 Pass Report Revision 1.0

Page 14 of 17 Report No.: S18112901801003 3 RF Exposure Evaluation 3.1 Operation in WLAN 2.4G FOR SISO MODE ANT A: Max Tune-up Gain EIRP EIRP S MPE Limit R(cm) Conclusion (dBm) (dBi) (dBm) (mW) (mW/cm2) (mW/cm2) 14.80 4.34 19.14 82.04 20 0.016 1.000 Pass ANT B: Max Tune-up Gain EIRP EIRP S MPE Limit R(cm) Conclusion (dBm) (dBi) (dBm) (mW) (mW/cm2) (mW/cm2) 14.40 4.34 18.74 74.82 20 0.015 1.000 Pass 3.2 Operation in WLAN 5.2G FOR SISO MODE ANT A: Max Tune-up Gain EIRP EIRP S MPE Limit R(cm) Conclusion (dBm) (dBi) (dBm) (mW) (mW/cm2) (mW/cm2) 10.80 4.76 15.56 35.97 20 0.007 1.000 Pass ANT B: Max Tune-up Gain EIRP EIRP S MPE Limit R(cm) Conclusion (dBm) (dBi) (dBm) (mW) (mW/cm2) (mW/cm2) 10.90 4.76 15.66 36.81 20 0.007 1.000 Pass 3.3 Operation in WLAN 5.3G FOR SISO MODE ANT A: Max Tune-up Gain EIRP EIRP S MPE Limit R(cm) Conclusion (dBm) (dBi) (dBm) (mW) (mW/cm2) (mW/cm2) 11.20 4.76 15.96 39.45 20 0.008 1.000 Pass ANT B: Max Tune-up Gain EIRP EIRP S MPE Limit R(cm) Conclusion (dBm) (dBi) (dBm) (mW) (mW/cm2) (mW/cm2) 10.90 4.76 15.66 36.81 20 0.007 1.000 Pass Report Revision 1.0

Page 15 of 17 Report No.: S18112901801003 3.4 Operation in WLAN 5.6G FOR SISO MODE ANT A: Max Tune-up Gain EIRP EIRP S MPE Limit R(cm) Conclusion (dBm) (dBi) (dBm) (mW) (mW/cm2) (mW/cm2) 10.90 4.76 15.66 36.81 20 0.007 1.000 Pass ANT B: Max Tune-up Gain EIRP EIRP S MPE Limit R(cm) Conclusion (dBm) (dBi) (dBm) (mW) (mW/cm2) (mW/cm2) 10.80 4.76 15.56 35.97 20 0.007 1.000 Pass 3.5 Operation in WLAN 5.8G FOR SISO MODE ANT A Tune-up limit Gain EIRP EIRP S MPE Limit R(cm) Conclusion (dBm) (dBi) (dBm) (mW) (mW/cm2) (mW/cm2) 10.60 4.76 15.36 34.36 20 0.007 1.000 Pass ANT B Tune-up limit Gain EIRP EIRP S MPE Limit R(cm) Conclusion (dBm) (dBi) (dBm) (mW) (mW/cm2) (mW/cm2) 10.20 4.76 14.96 31.33 20 0.006 1.000 Pass Report Revision 1.0

Page 16 of 17 Report No.: S18112901801003 4 Exposure calculations for multiple sources When a number of sources at different frequencies, and/or broadband sources, contribute to the total exposure, it becomes necessary to weigh each contribution relative to the MPE in accordance with the provisions of Table (A) and Table (B). To comply with the MPE, the fraction of the MPE in terms of E2, H2 (or power density) incurred within each frequency interval should be determined and the sum of all such fractions should not exceed unity. In order to ensure compliance with the MPE for a controlled environment, the sum of the ratios of the power density to the corresponding MPE should not exceed unity. That is The product also has multiple transmitters The Simultaneous Transmission Possibilities are as below: Simultaneous Tx Combination Configuration 1 WLAN MIMO 4.1 Estimation for WLAN MIMO 2.4G Max Total Gain EIRP EIRP S MPE Limit ANT Tune-up R(cm) S Conclusion (dBi) (dBm) (mW) (mW/cm2) (mW/cm2) (dBm) (mW/cm2) A 11.80 4.34 16.14 41.11 0.008 20 0.015 1.000 Pass B 11.40 4.34 15.74 37.50 0.007 4.2 Estimation for WLAN MIMO 5.2G Max Total Gain EIRP EIRP S MPE Limit ANT Tune-up R(cm) S Conclusion (dBi) (dBm) (mW) (mW/cm2) (mW/cm2) (dBm) (mW/cm2) A 9.90 4.76 14.66 29.24 0.006 20 0.011 1.000 Pass B 9.60 4.76 14.36 27.29 0.005 Report Revision 1.0

Page 17 of 17 Report No.: S18112901801003 4.3 Estimation for WLAN MIMO 5.3G Max Total Gain EIRP EIRP S MPE Limit ANT Tune-up R(cm) S Conclusion (dBi) (dBm) (mW) (mW/cm2) (mW/cm2) (dBm) (mW/cm2) A 9.80 4.76 14.56 28.58 0.006 20 0.011 1.000 Pass B 9.50 4.76 14.26 26.67 0.005 4.4 Estimation for WLAN MIMO 5.6G Max Total Gain EIRP EIRP S MPE Limit ANT Tune-up R(cm) S Conclusion (dBi) (dBm) (mW) (mW/cm2) (mW/cm2) (dBm) (mW/cm2) A 10.50 4.76 15.26 33.57 0.007 20 0.013 1.000 Pass B 10.20 4.76 14.96 31.33 0.006 4.5 Estimation for WLAN MIMO 5.8G Max Total Gain EIRP EIRP S MPE Limit ANT Tune-up R(cm) S Conclusion (dBi) (dBm) (mW) (mW/cm2) (mW/cm2) (dBm) (mW/cm2) A 9.80 4.76 14.56 28.58 0.006 20 0.011 1.000 Pass B 9.50 4.76 14.26 26.67 0.005 According to the Table above, we can conclude that the calculation results of all simultaneous transmission possibilities are less than 1, so it is into compliance. Therefore the product also meets the requirements under multiple sources condition. ----------------------------------------------------------------END------------------------------------------------------------------------ Report Revision 1.0


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