MPE Report

FCC ID: 2AEUPBHARG051

RF Exposure Info

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FCCID_4487519

’C@l Report Number: 19098812 Rev.00 MPE Report Applicant Ring LLC Product Type Video Doorbell 3 Trade Name Ring Model Number 5UM6ES Test Specification ANSIT / IEEE Std.C95.1 47 CFR §2.1091 47 CFR §1.1310 Received Date Sep. 02, 2019 Test Period Sep. 04, 2017 ~ Sep. 07, 2019 Issue Date Sep. 23, 2019 Issue by Approved By mA Tested By _ KS Fom (Mark Duan) (Kris Pan) A Test Lab Techno Corp. No. 140—1, Changan Street, Bade District, Taoyuan City 33465, Taiwan (R.0.C.) Tel : +886—3—2710188 / Fax : +886—3—2710190 Taiwan Accreditation Foundation accreditation number: 1330 Test Firm MRA designation number: TWO010 Note: 1.The test results are valid only for samples provided by customers and under the test conditions described in this report. 2.This report shall not be reproduced except in full, without the written approval of A Test Lab Technology Corporation: 3.The relevant information is provided by customers in this test report. According to the correciness, appropriateness or completeness of the information provided by the customer, if there is any doubt or error in the information which affects the validity of the test results, the laboratory does not take the responsibility. Page 1 of 11

Report Number: 1909FS12 Rev.00 Revision History Rev. Issue Date Revisions Revised By 00 Sep. 23, 2019 Initial Issue Jennifer Liu Page 2 of 11

Report Number: 1909FS12 Rev.00 Contents 1. Reference Testing Standards ............................................................................................. 4 2. Description of Equipment under Test (EUT) ....................................................................... 5 3. Human Exposure Assessment ........................................................................................... 6 4. RF Output Power ............................................................................................................... 7 5. Test Result........................................................................................................................11 Page 3 of 11

Report Number: 1909FS12 Rev.00 1. Reference Testing Standards Standard Description Version American National Standard safety levels with respect to human ANSI/IEEE C95.1 exposure to radio frequency electromagnetic fields, 300 KHz to 100 1992 GHz, New York. Page 4 of 11

Report Number: 1909FS12 Rev.00 2. Description of Equipment under Test (EUT) Ring LLC Applicant 1523 26th Street, Santa Monica CA 90404, United States Ring Inc. Manufacturer 1523 26th Street, Santa Monica CA 90404, United States Product Type Video Doorbell 3 Trade Name Ring Model Number 5UM6E5 FCC ID 2AEUPBHARG051 Frequency Range Operate Band (MHz) IEEE 802.11b / 802.11g / 802.11n 2.4 GHz 20 MHz (256QAM) 2412 – 2462 IEEE 802.11a U-NII Band I 5180 – 5240 IEEE 802.11a U-NII Band II-A 5260 – 5320 IEEE 802.11a U-NII Band II-C 5500 – 5720 IEEE 802.11a U-NII Band III 5720 – 5825 IEEE 802.11n 5 GHz / 802.11ac 20 MHz U-NII Band I 5180 – 5240 Frequency Range IEEE 802.11n 5 GHz / 802.11ac 20 MHz U-NII Band II-A 5260 – 5320 IEEE 802.11n 5 GHz / 802.11ac 20 MHz U-NII Band II-C 5500 – 5720 IEEE 802.11n 5 GHz / 802.11ac 20 MHz U-NII Band III 5720 – 5825 IEEE 802.11n 5 GHz / 802.11ac 40 MHz U-NII Band I 5190 – 5230 IEEE 802.11n 5 GHz / 802.11ac 40 MHz U-NII Band II-A 5270 – 5310 IEEE 802.11n 5 GHz / 802.11ac 40 MHz U-NII Band II-C 5510 – 5710 IEEE 802.11n 5 GHz / 802.11ac 40 MHz U-NII Band III 5710 – 5795 Bluetooth LE 2402 – 2480 Max. Gain Model Type Antenna (dBi) 2.4 GHz 0.61 PCB ANT-1 RFPCA491914EMLB303 5 GHz 5.26 Antenna Antenna Information ANT-0 Bluetooth LE 0.61 2.4 GHz 0.72 PCB ANT-0 RFPCA491914EMLB301 5 GHz 5.22 Antenna ANT-1 Bluetooth LE 0.72 IEEE 802.11b / g / n 2.4 GHz 20 MHz: 1TX(Diversity) IEEE 802.11a: 1TX(Diversity) Antenna Delivery IEEE 802.11n 5 GHz 20 MHz / 40 MHz: 1TX(Diversity) Bluetooth LE: 1TX(Diversity) 2 RF Evaluation 0.034 mW/cm Operate Temp. Range -20 ~ +50°C The above equipment was tested by A Test Lab Techno Corp. For compliance with the requirements set forth in 47 CFR § 2.1091 / 47 CFR § 1.1310. The results of testing in this report apply only to the product/system, which was tested. Other similar equipment will not necessarily produce the same results due to production tolerance and measurement uncertainties Page 5 of 11

Report Number: 1909FS12 Rev.00 3. Human Exposure Assessment Due to the design and installation of this product, it is not possible to conduct SAR evaluation. This is because client either manufactures or supplies the antenna(s) that will be used in the installation of this product. Therefore, this product will be evaluated as a mobile device per 47 CFR § 1.1310 titled “Radiofrequency radiation exposure limits”, generally referred to as MPE limits. In 47 CFR § 2.1091, paragraph (b) defines a mobile device as “a transmitting device designed to be used in other than fixed locations and to generally be used in such a way that a separation distance of at least 20 cm is normally maintained between the transmitter’s radiating structure(s) and the body of the user or nearby persons. ” This product is intended to be installed into a vehicle such that the unit is physically secured at one location. In the installation guide supplied with the product, Client has made the following statement: “IMPORTANT: To meet the FCC’s RF Exposure Guidelines, the antenna should be installed so there is at least 20 cm of separation between the body of the user and nearby persons and the antenna”. Based on the installation of the transceiver and the antenna, the transmitters radiating structure is more than 20 cm from the user. Thus, this product is a “mobile device” as defined in section § 2.1091 paragraph (b). Exposure evaluation PG S= 4πR 2 Where S: power density P: power input to the antenna G: power gain of the antenna in the direction of interest relative to an isotropic radiator. R: distance to the center of radiation of the antenna. Page 6 of 11

Report Number: 1909FS12 Rev.00 4. RF Output Power The conducted power turn-up tolerance reference manufacturer specification. Average Conducted power Date Rate Frequency Band (dBm) (Mbps) (MHz) ANT-0 ANT-1 1 2412.0 17.14 17.58 IEEE 802.11b 6 2437.0 17.28 17.64 11 2462.0 17.12 17.48 1 2412.0 14.17 14.56 IEEE 802.11g 6 2437.0 17.17 17.65 11 2462.0 15.13 15.46 1 2412.0 13.63 13.82 IEEE 802.11n 6 2437.0 16.64 16.66 2.4 GHz 20 MHz 11 2462.0 14.23 14.42 Note: The relevant measured result has the offset with cable loss already. Page 7 of 11

Report Number: 1909FS12 Rev.00 Average Conducted power Date Rate Frequency (dBm) Band (Mbps) (MHz) ANT-0 ANT-1 5180.0 12.91 13.63 5200.0 12.87 13.65 5220.0 12.52 13.31 5240.0 12.71 13.32 5260.0 12.52 13.09 5280.0 12.61 13.16 5300.0 12.73 13.39 5320.0 12.89 13.42 5500.0 13.49 13.74 5520.0 13.49 13.59 5540.0 13.80 13.88 5560.0 13.75 13.79 5580.0 13.86 13.88 IEEE 802.11a 6 5600.0 13.66 13.70 5620.0 13.82 13.84 5640.0 13.90 13.94 5660.0 13.86 13.93 5680.0 13.73 13.87 5700.0 13.62 13.77 5720.0 12.53 13.06 5720.0 6.12 6.63 5745.0 13.38 13.78 5765.0 13.23 13.90 5785.0 13.06 13.76 5805.0 13.03 13.66 5825.0 12.94 13.61 Note: The relevant measured result has the offset with cable loss already. Page 8 of 11

Report Number: 1909FS12 Rev.00 Average Conducted power Date Rate Frequency (dBm) Band (Mbps) (MHz) ANT-0 ANT-1 5180.0 12.48 13.25 5200.0 12.60 13.41 5220.0 12.36 13.02 5240.0 12.30 13.14 5260.0 12.43 13.04 5280.0 12.44 13.07 5300.0 12.41 13.12 5320.0 12.84 13.26 5500.0 13.27 13.51 5520.0 13.34 13.35 5540.0 13.63 13.65 5560.0 13.37 13.41 5580.0 13.58 13.63 IEEE 802.11ac 20 MHz 6.5 5600.0 13.41 13.45 5620.0 13.51 13.63 5640.0 13.73 13.76 5660.0 13.76 13.82 5680.0 13.67 13.78 5700.0 13.54 13.80 5720.0 12.86 13.44 5720.0 6.84 7.39 5745.0 13.30 13.87 5765.0 13.11 13.81 5785.0 12.99 13.59 5805.0 13.04 13.82 5825.0 12.83 13.69 5190.0 9.79 9.93 5230.0 11.86 12.46 5270.0 11.70 12.19 5310.0 12.02 12.37 5510.0 12.75 12.81 5550.0 12.78 12.88 IEEE 802.11ac 40 MHz 13.5 5590.0 12.71 12.92 5630.0 13.05 13.25 5670.0 12.92 13.44 5710.0 11.52 11.53 5710.0 -1.60 -1.53 5755.0 12.71 12.98 5795.0 12.75 12.94 Note: The relevant measured result has the offset with cable loss already. Page 9 of 11

Report Number: 1909FS12 Rev.00 Average Conducted power Frequency Operate Band Packet Type (dBm) (MHz) ANT-0 ANT-1 2402.0 0.33 0.70 Bluetooth LE 2440.0 --- 0.41 0.74 2480.0 0.61 0.81 2402.0 0.62 0.69 Bluetooth 2LE 2440.0 --- 0.42 0.74 2480.0 0.61 0.80 Page 10 of 11

Report Number: 1909FS12 Rev.00 5. Test Result Avg. burst Power with Power Distance ANT Numeric Frequency Limit tune-up Power Duty Duty cycle Density Antenna Band (m) Gain Gain (MHz) (w)/m2 (upper limit) Cycle [TP] [S] [R] (dBi) [G] [P] (dBm) (W) (w)/m2 Bluetooth Bluetooth LE 2402-2480 1 20 1.31 0.72 1.18 1 1.60 0.000 Antenna 2.4 GHz 2412-2462 1 20 18.15 0.72 1.18 1 77.07 0.015 5150-5250 1 20 14.15 5.26 3.36 1 87.37 0.017 Wi-Fi 5250-5350 1 20 13.92 5.26 3.36 1 82.86 0.016 Antenna 5 GHz 5470-5725 1 20 14.44 5.26 3.36 1 93.40 0.019 5725-5850 1 20 14.40 5.26 3.36 1 92.54 0.018 Note: 1. Mobile or fixed location transmitters, minimum separation distance is 20 cm, even if calculations indicate MPE distance is less. 2. We used the maximum power and gain to provide MPE results. 3. The Numeric Gain calculated by 10^(ant. Gain(dBi) /10). 4. The MPE results are evaluated by lowest data rate for WLAN. Simultaneous Transmitting： 2 2 Total MPE = 2.4GHz MPE + 5GHz MPE + Bluetooth MPE = 0.015 + 0.019 + 0.000 = 0.034 (mw)/cm < 1 (mw)/cm ---END--- Page 11 of 11


Document Created: 2019-10-23 05:21:50
Document Modified: 2019-10-23 05:21:50
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