RF Exposure Info (MPE) rev.pdf

FCC ID: 2AHBN-AP41

RF Exposure Info

Download: PDF
FCCID_4432233

RF Exposure Report Report No.: SA151230E03O FCC ID: 2AHBN-AP41 Test Model: AP41 Series Model: AP41E Received Date: Jun. 26, 2019 Test Date: Jul. 02 ~ Aug. 05, 2019 Issued Date: Aug. 13, 2019 Applicant: Mist Systems, Inc. Address: 1601 South De Anza Blvd. Suite 248 Cupertino California United States 95014 Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch Lin Kou Laboratories Lab Address: No. 47-2, 14th Ling, Chia Pau Vil., Lin Kou Dist., New Taipei City, Taiwan (R.O.C.) Test Location: No. 19, Hwa Ya 2nd Rd., Wen Hwa Vil., Kwei Shan Dist., Taoyuan City 33383, TAIWAN (R.O.C.) FCC Registration / 788550 / TW0003 Designation Number: This report is for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence, provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Unless specific mention, the uncertainty of measurement has been explicitly taken into account to declare the compliance or non-compliance to the specification. The report must not be used by the client to claim product certification, approval, or endorsement by TAF or any government agencies. Report No.: SA151230E03O Page No. 1 / 8 Report Format Version: 6.1.1 Reference No.: 190626C17

Table of Contents Release Control Record .................................................................................................................................. 3 1 Certificate of Conformity...................................................................................................................... 4 2 RF Exposure .......................................................................................................................................... 5 2.1 Limits for Maximum Permissible Exposure (MPE) .............................................................................. 5 2.2 MPE Calculation Formula ................................................................................................................... 5 2.3 Classification ....................................................................................................................................... 5 3 Calculation Result of Maximum Conducted Power........................................................................... 6 Report No.: SA151230E03O Page No. 2 / 8 Report Format Version: 6.1.1 Reference No.: 190626C17

Release Control Record Issue No. Description Date Issued SA151230E03O Original release Aug. 13, 2019 Report No.: SA151230E03O Page No. 3 / 8 Report Format Version: 6.1.1 Reference No.: 190626C17

1 Certificate of Conformity Product: Premium Wi-Fi & BLE Array AP Brand: Mist Test Model: AP41 Series Model: AP41E Sample Status: Engineering sample Applicant: Mist Systems, Inc. Test Date: Jul. 02 ~ Aug. 05, 2019 Standards: FCC Part 2 (Section 2.1091) KDB 447498 D01 General RF Exposure Guidance v06 IEEE C95.3 -2002 The above equipment has been tested by Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch, and found compliance with the requirement of the above standards. The test record, data evaluation & Equipment Under Test (EUT) configurations represented herein are true and accurate accounts of the measurements of the sample’s RF characteristics under the conditions specified in this report. Prepared by : , Date: Aug. 13, 2019 Pettie Chen / Senior Specialist Approved by : , Date: Aug. 13, 2019 Bruce Chen / Senior Project Engineer Report No.: SA151230E03O Page No. 4 / 8 Report Format Version: 6.1.1 Reference No.: 190626C17

2 RF Exposure 2.1 Limits for Maximum Permissible Exposure (MPE) Frequency Range Electric Field Magnetic Field Power Density Average Time (MHz) Strength (V/m) Strength (A/m) (mW/cm2) (minutes) 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 30 300-1500 … … f/1500 30 1500-100,000 … … 1.0 30 f = Frequency in MHz; *Plane-wave equivalent power density 2.2 MPE Calculation Formula Pd = (Pout*G) / (4*pi*r2) where Pd = power density in mW/cm2 Pout = output power to antenna in mW G = gain of antenna in linear scale pi = 3.1416 r = distance between observation point and center of the radiator in cm 2.3 Classification The antenna of this product, under normal use condition, is at least 35cm away from the body of the user. So, this device is classified as Mobile Device. Report No.: SA151230E03O Page No. 5 / 8 Report Format Version: 6.1.1 Reference No.: 190626C17

3 Calculation Result of Maximum Conducted Power Frequency Band Max Power Antenna Gain Distance Power Density Limit TX Function (MHz) (dBm) (dBi) (cm) (mW/cm2) (mW/cm2) CDD Mode 1TX 19.57 8 35 0.037 1 2TX 23.04 11.01 35 0.165 1 2412-2462 3TX 25.02 12.77 35 0.391 1 4TX 26.20 14.02 35 0.683 1 1TX 17.04 8 35 0.021 1 2TX 20.47 11.01 35 0.091 1 5180-5240 3TX 22.60 12.77 35 0.224 1 4TX 23.73 14.02 35 0.387 1 1TX 10.88 8 35 0.005 1 2TX 14.38 11.01 35 0.022 1 5260-5320 3TX 16.34 12.77 35 0.053 1 4TX 17.49 14.02 35 0.092 1 1TX 11.45 8 35 0.006 1 2TX 14.73 11.01 35 0.024 1 5500-5700 3TX 16.64 12.77 35 0.057 1 4TX 17.72 14.02 35 0.097 1 1TX 21.62 8 35 0.060 1 2TX 24.48 11.01 35 0.230 1 5745-5825 3TX 26.65 12.77 35 0.568 1 4TX 27.80 14.02 35 0.988 1 Report No.: SA151230E03O Page No. 6 / 8 Report Format Version: 6.1.1 Reference No.: 190626C17

Frequency Band Max Power Antenna Gain Distance Power Density Limit TX Function (MHz) (dBm) (dBi) (cm) (mW/cm2) (mW/cm2) Beamforming Mode 2TX 18.65 11.01 35 0.060 1 2412-2462 3TX 20.65 12.77 35 0.143 1 4TX 21.87 14.02 35 0.252 1 2TX 18.52 11.01 35 0.058 1 5180-5240 3TX 20.61 12.77 35 0.141 1 4TX 21.75 14.02 35 0.245 1 2TX 12.88 11.01 35 0.016 1 5260-5320 3TX 14.81 12.77 35 0.037 1 4TX 15.97 14.02 35 0.065 1 2TX 12.88 11.01 35 0.016 1 5500-5700 3TX 14.75 12.77 35 0.037 1 4TX 15.86 14.02 35 0.063 1 2TX 18.74 11.01 35 0.061 1 5745-5825 3TX 20.76 12.77 35 0.146 1 4TX 21.86 14.02 35 0.252 1 Frequency Band Max Power Antenna Gain Distance Power Density Limit TX Function (MHz) (dBm) (dBi) (cm) (mW/cm2) (mW/cm2) Radio 3 BT EDR - 10.90 11.05 35 0.010 1 BT LE - 6.13 11.05 35 0.003 1 Note: WLAN: 2TX: Directional gain = 8 dBi + 10 log(2)= 11.01dBi 3TX: Directional gain = 8 dBi + 10 log(3)= 12.77dBi 4TX: Directional gain = 8 dBi + 10 log(4)= 14.02dBi BT EDR/BT LE: Directional gain = 5.03dBi + 10log(4) = 11.05dBi Report No.: SA151230E03O Page No. 7 / 8 Report Format Version: 6.1.1 Reference No.: 190626C17

MAX POWER (dBm) TOTAL POWER POWER LIMIT Radio 1: WLAN Radio 3: BT (dBm) (dBm) 2.4GHz 26.20 10.90 26.33 30 Note: Determining compliance based on the results of the compliance measurement, not taking into account measurement instrumentation uncertainty. CONCULSION: 2.4G & 5G & BT cannot transmit simultaneously. The simultaneous operation mode was determined by client as below: 1. Radio 1: 2.4G + Radio 3: BT 2. Radio 1: 5G + Radio 3: BT The formula of calculated the MPE is: CPD1 / LPD1 + CPD2 / LPD2 + ……etc. < 1 CPD = Calculation power density LPD = Limit of power density Radio 1: 2.4G + Radio 3: BT = 0.683/1 + 0.010/1 =0.693 Radio 1: 5G + Radio 3: BT = 0.988/1 + 0.010/1 = 0.998 Therefore, the maximum calculation of this situation is 0.998, which is less than the “1” limit. ---END--- Report No.: SA151230E03O Page No. 8 / 8 Report Format Version: 6.1.1 Reference No.: 190626C17


Document Created: 2019-09-05 19:16:41
Document Modified: 2019-09-05 19:16:41
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC