RF Exposure Info

FCC ID: SS3-WM3361905

RF Exposure Info

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FCCID_4457102

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM190601535102 Page: 1 of 8 1 Cover page RF Exposure Evaluation Report Application No.: SZEM1906015351CR Applicant: SZ DJI TECHNOLOGY CO., LTD Address of Applicant: 14th floor, West Wing, Skyworth Semiconductor Design Building NO.18 Gaoxin South 4th Ave, Nanshan, Shenzhen, Guangdong, 518057, China Manufacturer: SZ DJI TECHNOLOGY CO., LTD Address of Manufacturer: 14th floor, West Wing, Skyworth Semiconductor Design Building NO.18 Gaoxin South 4th Ave, Nanshan, Shenzhen, Guangdong, 518057, China Factory: DJI BW Technology Company Ltd. Address of Factory: No.1,2,7,9 Building, Baiwang Creative Factory, No.1051 of Songbai Road, Xili Street, Nanshan District, Shenzhen City, Guangdong Province, P.R.China Equipment Under Test (EUT): Product Name: P4 Multispectral Model No.: WM336 Trade mark: DJI FCC ID: SS3-WM3361905 Standards: 47 CFR Part 1.1307 (2016) 47 CFR Part 1.1310 (2016) Date of Receipt: 2019-06-18 Date of Test: 2019-07-03 to 2019-07-05 Date of Issue: 2019-07-11 Test Result : PASS* * In the configuration tested, the EUT complied with the standards specified above. Keny Xu EMC Laboratory Manager

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM190601535102 Page: 2 of 8 2 Version Revision Record Version Chapter Date Modifier Remark 01 2019-07-11 Original Authorized for issue by: Powell Bao /Project Engineer Eric Fu /Reviewer

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM190601535102 Page: 3 of 8 3 Contents Page 1 COVER PAGE .............................................................................................................................................. 1 2 VERSION ...................................................................................................................................................... 2 3 CONTENTS .................................................................................................................................................. 3 4 GENERAL INFORMATION .......................................................................................................................... 4 4.1 GENERAL DESCRIPTION OF EUT ................................................................................................................. 4 4.2 TEST LOCATION .......................................................................................................................................... 5 4.3 TEST FACILITY ............................................................................................................................................ 5 4.4 DEVIATION FROM STANDARDS ..................................................................................................................... 6 4.5 ABNORMALITIES FROM STANDARD CONDITIONS............................................................................................ 6 4.6 OTHER INFORMATION REQUESTED BY THE CUSTOMER ................................................................................. 6 5 RF EXPOSURE EVALUATION .................................................................................................................... 7 5.1 RF EXPOSURE COMPLIANCE REQUIREMENT ................................................................................................ 7 5.1.1 Limits ................................................................................................................................................ 7 5.1.2 Test Procedure ................................................................................................................................ 7 4.1.3 EUT RF EXPOSURE EVALUATION ............................................................................................................... 8

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM190601535102 Page: 4 of 8 4 General Information 4.1 General Description of EUT Power supply: DC 15.2V From Battery Operation Frequency: 1.4M BW: 5728.5MHz ~ 5846.5MHz; 10M BW: 5730.5MHz ~ 5844.5MHz; Modulation Type: OFDM Number of Channels: 1.4M BW: 60; 10M BW: 115; Channel Spacing: 1.4M BW: 2MHz; 10M BW: 1MHz; Antenna Type: Dipole Antenna Antenna Gain: 4.6dBi

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM190601535102 Page: 5 of 8 4.2 Test Location All tests were performed at: SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch No. 1 Workshop, M-10, Middle section, Science & Technology Park, Shenzhen, Guangdong, China 518057 Telephone: +86 (0) 755 2601 2053 Fax: +86 (0) 755 2671 0594 No tests were sub-contracted. 4.3 Test Facility The test facility is recognized, certified, or accredited by the following organizations: • CNAS (No. CNAS L2929) CNAS has accredited SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch EMC Lab to ISO/IEC 17025:2005 General Requirements for the Competence of Testing and Calibration Laboratories (CNAS-CL01 Accreditation Criteria for the Competence of Testing and Calibration Laboratories) for the competence in the field of testing. • A2LA (Certificate No. 3816.01) SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory is accredited by the American Association for Laboratory Accreditation(A2LA). Certificate No. 3816.01. • VCCI The 3m Fully-anechoic chamber for above 1GHz, 10m Semi-anechoic chamber for below 1GHz, Shielded Room for Mains Port Conducted Interference Measurement and Telecommunication Port Conducted Interference Measurement of SGS-CSTC Standards Technical Services Co., Ltd. have been registered in accordance with the Regulations for Voluntary Control Measures with Registration No.: G- 20026, R-14188, C-12383 and T-11153 respectively. • FCC –Designation Number: CN1178 SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory has been recognized as an accredited testing laboratory. Designation Number: CN1178. Test Firm Registration Number: 406779. • Innovation, Science and Economic Development Canada SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory has been recognized by ISED as an accredited testing laboratory. CAB identifier: CN0006. IC#: 4620C.

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM190601535102 Page: 6 of 8 4.4 Deviation from Standards None. 4.5 Abnormalities from Standard Conditions None. 4.6 Other Information Requested by the Customer None.

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM190601535102 Page: 7 of 8 5 RF Exposure Evaluation 5.1 RF Exposure Compliance Requirement 5.1.1 Limits According to FCC Part1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in part1.1307(b) F= Frequency in MHz Friis Formula Friis transmission formula: Pd = (Pout*G)/(4* Pi * R 2) 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 Pd id the limit of MPE, 1 mW/cm2 . If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. 5.1.2 Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually.

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM190601535102 Page: 8 of 8 4.1.3 EUT RF Exposure Evaluation Antenna Gain: 4.6dBi Antenna Gain: The maximum Gain measured in fully anechoic chamber is 2.88 in linear scale. Output Power Into Antenna & RF Exposure Evaluation Distance: For 1.4M: Channel Frequency Max Conducted Output Power Power Density Limit Result (MHz) Peak Output to Antenna at R = 20 cm Power (dBm) (mW) (mW/cm2) Highest 5846.5 20.59 114.55 0.066 1.0 PASS For 10M: Channel Frequency Max Conducted Output Power Power Density Limit Result (MHz) Peak Output to Antenna at R = 20 cm Power (dBm) (mW) (mW/cm2) Highest 5844.5 21.26 133.66 0.077 1.0 PASS Note: Refer to report No. SZEM190601535101 for EUT test Max Conducted Peak Output Power value. The distance r (4th column) calculated from the Fries transmission formula is far greater than 20 cm separation requirement. - End of the Report -


Document Created: 2019-08-26 06:31:12
Document Modified: 2019-08-26 06:31:12
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