RF exposure evaluation

FCC ID: 2AFIWGL-AR750S

RF Exposure Info

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FCCID_3977860

Compliance Certification Services (Shenzhen) Inc. Report No: C180408203—RP1_MPE FCC ID: 2AFIWGL—AR7508 Date of Issue: August 17, 2018 MPE Report Exposure category: General population/uncontrolled environment EUT Type: Production Unit Device Type: Mobile Device Refer Standard: KDB 447498 DO1 General RF Exposure Guidance v06 FCC Part 2 §2.1091 1. Evaluation method Systems operating under the provisions of FCC 47 CFR section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission‘s guidelines. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as mobile device whereby a distance of 0.2m normally can be maintained between the user and the device, and below RF Permissible Exposure limit shall comply with. In accordance with KDB447498D01 for Simultaneous transmission MPE test exclusion applies when the sum of the MPE ratios for all simultaneous transmitting antennas incorporated in a host device, based on the calculated/estimated, numerically modeled or measured field strengths or power density, is <1.0. The MPE ratio of each antenna is determinedat the minimum test separation distance required by the operating configurations and exposure conditions of the host device, according to the ratio of field strengths or power density to MPE limit, at the test frequency. Either the maximum peak or spatially averaged results from measurements or numerical simulations may be used to determine the MPE ratios. Spatial averaging does not apply when MPE is estimated using simple calculations based on far—field plane—wave equivalent conditions. The antenna installation and operating requirements for the host device must meet the minimum test separation distances required by all antennas, in both standalone and simultaneous transmission operations, to satisfy compliance. 2. Limits for General Population/Uncontrolled Exposure Precungrane|— Sicuinat WWoghd| oobay0|fiors" (B) Limits for General Population/ Uncontrolled Exposure (V/m) (A/m) (mW/ em‘) (minutes) 0.3—1.34 614 1.63 (100)* 30 1.34—30 824/f 2.19/f (180/1)* 30 30—300 27.5 0.073 0.2 30 300—1500 F/1500 30 1500—100,000 1.0 30 Note: £= frequencyin MHz ; *Plane—wave equivalent powerdensity 3. Calculation Method Predication of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97—01 S=PG/ARR® Where: S=power density

Compliance Certification Services (Shenzhen) Inc. Report No: C180408Z03-RP1_MPE FCC ID: 2AFIWGL-AR750S Date of Issue: August 17, 2018 P=power input to antenna G=power gain of the antenna in the direction of interest relative to anisotropic radiator R=distance to the center of radiation of the antenna From the EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the maximum gain of the used as following information, the RF power density can be obtained. Frequency Antenna type and Maximum antenna Internal Identification Band antenna number gain 2.4GHz 4.68dBi Internal Antenna 0 5GHz 6.10dBi 2.4GHz Internal Antenna 1 3.64dBi WLAN Antenna 2.4GHz 3.98dBi External Antenna 2 5GHz 4.82dBi 2.4GHz External Antenna 3 3.98dBi 4. Estimation Result 4.1 Conducted Power Results 2.4GHz WIFI Peak Conducted Output Antenna Mode Frequency(MHz) Power (dBm) 2412 14.50 IEEE 802.11b 2437 14.30 2462 13.93 2412 18.16 IEEE 802.11g 2437 18.71 Internal Antenna 0 / 2462 17.62 External Antenna 2 2412 17.73 IEEE 802.11n HT20 2437 18.75 2462 17.95 2422 17.96 IEEE 802.11n HT40 2437 17.91 2452 17.95

Compliance Certification Services (Shenzhen) Inc. Report No: C180408Z03-RP1_MPE FCC ID: 2AFIWGL-AR750S Date of Issue: August 17, 2018 Peak Conducted Output Antenna Mode Frequency(MHz) Power (dBm) 2412 14.35 IEEE 802.11b 2437 12.79 2462 11.81 2412 18.20 IEEE 802.11g 2437 18.46 Internal Antenna 1 / 2462 18.93 External Antenna 3 2412 17.16 IEEE 802.11n HT20 2437 17.64 2462 17.87 2422 17.43 IEEE 802.11n HT40 2437 16.98 2452 17.41 5GHz WIFI Average Conducted Output Antenna Mode Frequency(MHz) Power (dBm) 5180 18.89 5200 18.73 5240 18.21 IEEE 802.11a 5745 17.10 5785 17.08 5825 17.12 5180 17.12 5200 17.96 Internal Antenna 0 / 5240 17.36 IEEE 802.11n HT20 External Antenna 2 5745 16.12 5785 16.47 5825 16.02 5190 17.84 5230 17.35 IEEE 802.11n HT40 5755 15.83 5795 15.76 5210 6.94 IEEE 802.11ac 80 5775 7.32

Compliance Certification Services (Shenzhen) Inc. Report No: C180408Z03-RP1_MPE FCC ID: 2AFIWGL-AR750S Date of Issue: August 17, 2018 4.2 Manufacturing tolerance 2.4GHz WIFI IEEE 802.11b (Peak) Frequency Internal Antenna 0 / External Antenna 2 Internal Antenna 1/External Antenna 3 (MHz) 2412 2437 2462 2412 2437 2462 Target (dBm) 14.0 14.0 13.0 14.0 12.0 11.0 Tolerance ±(dB) 1.0 1.0 1.0 1.0 1.0 1.0 IEEE 802.11 g (Peak) Frequency Internal Antenna 0 / External Antenna 2 Internal Antenna 1/External Antenna 3 (MHz) 2412 2437 2462 2412 2437 2462 Target (dBm) 18.0 18.0 17.0 18.0 18.0 18.0 Tolerance ±(dB) 1.0 1.0 1.0 1.0 1.0 1.0 IEEE 802.11 n HT20 (Peak) Frequency Internal Antenna 0 / External Antenna 2 Internal Antenna 1/External Antenna 3 (MHz) 2412 2437 2462 2412 2437 2462 Target (dBm) 17.0 18.0 17.0 17.0 17.0 17.0 Tolerance ±(dB) 1.0 1.0 1.0 1.0 1.0 1.0 IEEE 802.11 n HT40 (Peak) Frequency Internal Antenna 0 / External Antenna 2 Internal Antenna 1/External Antenna 3 (MHz) 2412 2437 2462 2412 2437 2462 Target (dBm) 17.0 17.0 17.0 17.0 16.0 17.0 Tolerance ±(dB) 1.0 1.0 1.0 1.0 1.0 1.0 5GHz WIFI IEEE 802.11 a (Average) Frequency 5180 5200 5240 5745 5785 5825 (MHz) Target (dBm) 18.0 18.0 18.0 17.0 17.0 17.0 Tolerance ±(dB) 1.0 1.0 1.0 1.0 1.0 1.0 IEEE 802.11n HT20 (Average) Frequency 5180 5200 5240 5745 5785 5825 (MHz) Target (dBm) 17.0 17.0 17.0 16.0 16.0 16.0 Tolerance ±(dB) 1.0 1.0 1.0 1.0 1.0 1.0 IEEE 802.11n HT40 (Average) Frequency 5190 --- 5230 5755 --- 5795 (MHz) Target (dBm) 17.0 --- 17.0 15.0 --- 15.0 Tolerance ±(dB) 1.0 1.0 1.0 1.0 1.0 1.0 IEEE 802.11ac 80 (Average) Frequency 5210 --- --- --- --- 5775 (MHz) Target (dBm) 6.0 --- --- --- --- 7.0 Tolerance ±(dB) 1.0 1.0 1.0 1.0 1.0 1.0

Compliance Certification Services (Shenzhen) Inc. Report No: C180408Z03-RP1_MPE FCC ID: 2AFIWGL-AR750S Date of Issue: August 17, 2018 4.3 Measurement Results 4.3.1 Standalone MPE 2.4GWLAN Internal Antenna 0 Antenna Antenna Output power Duty MPE MPE Limits Mode Gain Gain Cycle (mW/cm2) (mW/cm2) (dBm) (mW) (dBi) (linear) IEEE 802.11 b 15.00 31.6228 4.68 2.9376 100% 0.0185 1.0000 IEEE 802.11 g 19.00 79.4328 4.68 2.9376 100% 0.0464 1.0000 IEEE 802.11 n HT20 19.00 79.4328 4.68 2.9376 100% 0.0464 1.0000 IEEE 802.11 n HT40 18.00 63.0957 4.68 2.9376 100% 0.0369 1.0000 Internal Antenna 1 Antenna Antenna Output power Duty MPE MPE Limits Mode Gain Gain Cycle (mW/cm2) (mW/cm2) (dBm) (mW) (dBi) (linear) IEEE 802.11 b 15.00 31.6228 3.64 2.3121 100% 0.0146 1.0000 IEEE 802.11 g 19.00 79.4328 3.64 2.3121 100% 0.0366 1.0000 IEEE 802.11 n HT20 19.00 79.4328 3.64 2.3121 100% 0.0366 1.0000 IEEE 802.11 n HT40 18.00 63.0957 3.64 2.3121 100% 0.0290 1.0000 External Antenna 2 Antenna Antenna Output power Duty MPE MPE Limits Mode Gain Gain Cycle (mW/cm2) (mW/cm2) (dBm) (mW) (dBi) (linear) IEEE 802.11 b 15.00 31.6228 3.98 2.5003 100% 0.0157 1.0000 IEEE 802.11 g 19.00 79.4328 3.98 2.5003 100% 0.0395 1.0000 IEEE 802.11 n HT20 19.00 79.4328 3.98 2.5003 100% 0.0395 1.0000 IEEE 802.11 n HT40 18.00 63.0957 3.98 2.5003 100% 0.0314 1.0000 External Antenna 3 Antenna Antenna Output power Duty MPE MPE Limits Mode Gain Gain Cycle (mW/cm2) (mW/cm2) (dBm) (mW) (dBi) (linear) IEEE 802.11 b 15.00 31.6228 3.98 2.5003 100% 0.0157 1.0000 IEEE 802.11 g 19.00 79.4328 3.98 2.5003 100% 0.0395 1.0000 IEEE 802.11 n HT20 19.00 79.4328 3.98 2.5003 100% 0.0395 1.0000 IEEE 802.11 n HT40 18.00 63.0957 3.98 2.5003 100% 0.0314 1.0000

Compliance Certification Services (Shenzhen) Inc. Report No: C180408Z03-RP1_MPE FCC ID: 2AFIWGL-AR750S Date of Issue: August 17, 2018 5GWLAN Internal Antenna 0 Antenna Antenna Output power Duty MPE MPE Limits Mode Gain Gain Cycle (mW/cm2) (mW/cm2) (dBm) (mW) (dBi) (linear) IEEE 802.11 a 19.0 79.4328 6.10 4.0738 100% 0.0644 1.0000 IEEE 802.11 n HT20 18.0 63.0957 6.10 4.0738 100% 0.0512 1.0000 IEEE 802.11 n HT40 18.0 63.0957 6.10 4.0738 100% 0.0512 1.0000 IEEE 802.11 ac 80 8.0 6.3096 6.10 4.0738 100% 0.0051 1.0000 External Antenna 2 Antenna Antenna Output power Duty MPE MPE Limits Mode Gain Gain Cycle (mW/cm2) (mW/cm2) (dBm) (mW) (dBi) (linear) IEEE 802.11 a 19.0 79.4328 4.82 3.0339 100% 0.0480 1.0000 IEEE 802.11 n HT20 18.0 63.0957 4.82 3.0339 100% 0.0381 1.0000 IEEE 802.11 n HT40 18.0 63.0957 4.82 3.0339 100% 0.0381 1.0000 IEEE 802.11 ac 80 8.0 6.3096 4.82 3.0339 100% 0.0038 1.0000 Remark: 1. Maximum average power including tune-up tolerance; 2. MPE use distance is 20cm from manufacturer declaration of user manual. According to KDB447498 for Transmitters used in mobile exposure conditions for simultaneous transmission operations; ∑of MPE ratios≤ 1.0 We first evaluate WLAN simultaneous transmission and later evaluate BT and WLAN simultaneous transmission; Antenna 0 and Antenna 1 for 2.4GWLAN Band Mode MPE Ratio MPE Ratio ∑MPE ratios Limit Results Antenna 0 Antenna 1 IEEE 802.11b 0.0185 0.0146 N/A 1.000 Pass IEEE 802.11g 0.0464 0.0366 N/A 1.000 Pass 2.4G IEEE 802.11n HT20 0.0464 0.0366 < 0.1 1.000 Pass IEEE 802.11n HT40 0.0369 0.0290 < 0.1 1.000 Pass Antenna 2 and Antenna 3 for 2.4GWLAN MPE Ratio MPE Ratio Band Mode ∑MPE ratios Limit Results Antenna 2 Antenna 3 IEEE 802.11b 0.0157 0.0157 N/A 1.000 Pass IEEE 802.11g 0.0395 0.0395 N/A 1.000 Pass 2.4G IEEE 802.11n HT20 0.0395 0.0395 < 0.1 1.000 Pass IEEE 802.11n HT40 0.0314 0.0314 < 0.1 1.000 Pass

Compliance Certification Services (Shenzhen) Inc. Report No: C180408Z03-RP1_MPE FCC ID: 2AFIWGL-AR750S Date of Issue: August 17, 2018 Remark: 1. Maximum average power including tune-up tolerance; 2. MPE use distance is 20cm from manufacturer declaration of user manual. Maximum MPE Ratios for 2.4GHz and 5GHz WLAN simultaneous transmission Antenna type Maximum MPE Maximum MPE ∑MPE ratios Limit Results Ratio2.4GHzWLAN Ratio5GHzWLAN Internal Antenna 0.0644 0.0464 < 0.2 1.000 Pass External Antenna 0.0480 0.0395 < 0.2 1.000 Pass Conclusion The measurement results comply with the FCC Limit per 47 CFR 2.1091 for the uncontrolled RF Exposure of mobile device. ---------------- END OF REPORT---------------


Document Created: 2019-10-16 16:22:21
Document Modified: 2019-10-16 16:22:21
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