RF Exposure Info

FCC ID: 2ALS8-NB2588

RF Exposure Info

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FCCID_4154826

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM181000931605 Page: 1 of 10 1 sCover page RF Exposure Evaluation Report Application No.: SZEM1810009316CR Applicant: Ninebot (Changzhou) Tech Co., Ltd Address of Applicant: 16F-17F, Block A, Building 3, Changwu Mid Road 18#, Wujin Dist., Changzhou, Jiangsu, China Manufacturer: Ninebot (Changzhou) Tech Co., Ltd Address of Manufacturer: 16F-17F, Block A, Building 3, Changwu Mid Road 18#, Wujin Dist., Changzhou, Jiangsu, China Equipment Under Test (EUT): EUT Name: IoT device Model No.: PJ22IOT Trade mark: Segway FCC ID: 2ALS8-NB2588 Standards: 47 CFR Part 1.1307 47 CFR Part 1.1310 Date of Receipt: 2018-10-29 Date of Test: 2018-11-01 to 2018-12-14 Date of Issue: 2018-12-26 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.: SZEM181000931605 Page: 2 of 10 2 Version Revision Record Version Chapter Date Modifier Remark 01 2018-12-26 Original Authorized for issue by: Vincent Chen /Project Engineer Eric Fu /Reviewer

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM181000931605 Page: 3 of 10 3 Contents Page 1 SCOVER PAGE ............................................................................................................................................ 1 2 VERSION ...................................................................................................................................................... 2 3 CONTENTS .................................................................................................................................................. 3 4 GENERAL INFORMATION .......................................................................................................................... 4 4.1 GENERAL DESCRIPTION OF EUT ................................................................................................................. 4 4.2 TEST LOCATION .......................................................................................................................................... 6 4.3 TEST FACILITY ............................................................................................................................................ 6 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 ................................................................................................................................ 8 5.1.3 EUT RF Exposure Evaluation ..................................................................................................... 9-10

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM181000931605 Page: 4 of 10 4 General Information 4.1 General Description of EUT Powered by DC 3.7V Lithium ion Battery, Power supply: Charging by DC 36V from external power input Sample Type: Fixed production For BLE: Operation Frequency: 2402MHz to 2480MHz Bluetooth Version: V4.0 Channel Spacing: 2MHz Modulation Type: GFSK Number of Channels: 40 Antenna Type: PCB Antenna Antenna Gain: 3dBi For 3G: UMTS Operation Frequency UMTS FDD Band II/V Band: Modulation Type: QPSK Supported Channel Bandwidth: 5 MHz UMTS Power Class: Level 3 Designation of Emissions: UMTS band II: 4M15F9W UMTS band V: 4M15F9W Antenna Type: PIFA Antenna WCDMA Band V: -0.3dBi Antenna Gain: WCDMA Band II: -0.3dBi Extreme temp. Tolerance: -30°C to +50°C Extreme vol. Limits: 3.2VDC to 4.3VDC (nominal: 3.7VDC) For 4G: LTE Operation Frequency LTE FDD Band 2, 4, 12 Band: Modulation Type: QPSK, 16QAM LTE Power Class: Level 3 Antenna Type: PIFA Antenna LTE Band 4: -0.2dBi Antenna Gain: LTE Band 2: -0.3dBi LTE Band 12: 0.2dBi

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM181000931605 Page: 5 of 10 Extreme temp. Tolerance: -30°C to +50°C Extreme vol. Limits: 3.2VDC to 4.3VDC (nominal: 3.7VDC)

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM181000931605 Page: 6 of 10 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. 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.: SZEM181000931605 Page: 7 of 10 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)

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM181000931605 Page: 8 of 10 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. FCC limit : 2 WCDMA band II and LTE FDD band 2: 1mW/cm 2 WCDMA band V: 0.558mW/cm 2 LTE FDD band 4: 1mW/cm 2 LTE FDD band 12: 0.625mW/cm 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 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.: SZEM181000931605 Page: 9 of 10 5.1.3 EUT RF Exposure Evaluation For BLE: ANT: 3dBi Antenna Gain: The maximum Gain measured in fully anechoic chamber is 2 in linear scale. Output Power Into Antenna & RF Exposure Evaluation Distance: Declared Max Average Output Power to Power Density Limit Result Frequency Output Power Antenna at R = 20 cm (mW/cm2) (MHz) (including tune-up tolerance ) (dBm) (mW) (mW/cm2) 2402MHz -10.5 0.089 0.00004 1.0 PASS Note: Refer to Tune-up information for EUT Declared Max. Average Peak Output Power value. The distancer (4th column) calculated from the Fries transmission formula is far greater than 20 cm separation requirement. For WCDMA and 4G LTE: Antenna Gain: WCDMA Band V/ II:-0.3dBi, LTE Band 4:-0.2dBi, LTE Band 2:-0.3dBi, LTE Band 12:0.2dBi Antenna Gain: The maximum Gain measured in fully anechoic chamber is WCDMA Band V/ II:0.96, LTE Band 4:0.95, LTE Band 2:0.96, LTE Band 12:1.05 in linear scale. Output Power Into Antenna & RF Exposure Evaluation Distance: Declared Max Output Power Power Density Test Average Limit to Antenna at R = 20 cm Result mode Output Power (mW/cm2) (dBm) (mW) (mW/cm2) WCDMA II 23 199.53 0.037 1.0 PASS WCDMA V 25 316.23 0.059 0.558 PASS LTE FDD band 2 25 316.23 0.059 1.0 PASS LTE FDD band 4 23.5 223.87 0.043 1.0 PASS LTE FDD band 12 24.5 281.84 0.059 0.625 PASS Note: Refer to Tune-up information for EUT Declared Max. Average Peak Output Power value. The distance r (4th column) calculated from the Fries transmission formula is far greater than 20 cm separation requirement.

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZEM181000931605 Page: 10 of 10 The simultaneous transmission result between of BLE, WCDMA: The SAR Exclusion Threshold Level: =CPD1 / LPD1 + CPD2 / LPD2 (CPD = Calculation power density, LPD = Limit of power density) = (0.00004/1) +(0.059/0.558)= 0.106 <1.0 Since the source-based time-averaging conducted output power is well below the SAR low threshold level, so the EUT is considered to comply with SAR requirement without testing. - End of the Report -


Document Created: 2019-01-29 02:51:28
Document Modified: 2019-01-29 02:51:28
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