2AV2JDBF1C001Smart Projector

Test model number: DBF1C

Model No.: DBF1C Label location

FCC ID: 2AV2JDBF1C001 RF Exposure Evaluation Limits 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 1.1307(b) Limits for Maximum Permissible Exposure (MPE) Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm 2 ) Averaging time (minutes) (A) Limits for Occupational/Controlled Exposures 0.3–3.0 614 1.63 *(100) 6 3.0–30 1842/f 4.89/f *(900/f 2 ) 6 30–300 61.4 0.163 1.0 6 300–1500 f/300 6 1500–100,000 5 6 (B) Limits for General Population/Uncontrolled Exposure 0.3–1.34 614 1.63 *(100) 30 1.34–30 824/f 2.19/f *(180/f 2 ) 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 Friis transmission formula: Pd = (Pout*G)/(4*pi*r 2 ) Where Pd = power density in mW/cm 2 , 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/cm 2 . 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. Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. Test Result of RF Exposure Evaluation BT EDR mode Channel Output power to antenna (mW) Power Density at R=20cm (mW/cm 2 ) Limit (mW/cm 2 ) Result Lowest (2402MHz) 2.33 0.0010 1.0 PASS Middle (2441MHz) 2.61 0.0011 1.0 PASS Highest (2480MHz) 2.55 0.0011 1.0 PASS Remark: antenna gain=3.4dBi BT BLE mode Channel Output power to antenna (mW) Power Density at R=20cm (mW/cm 2 ) Limit (mW/cm 2 ) Result Lowest (2402MHz) 2.83 0.0012 1.0 PASS Middle (2440MHz) 2.94 0.0013 1.0 PASS Highest (2480MHz) 2.77 0.0012 1.0 PASS Remark: antenna gain=3.4dBi WiFi mode Channel Output power to antenna (mW) Power Density at R=20cm (mW/cm 2 ) Limit (mW/cm 2 ) Result Lowest (2412MHz) 32.89 0.0150 1.0 PASS Middle (2437MHz) 33.96 0.0155 1.0 PASS Highest (2462MHz) 31.41 0.0143 1.0 PASS Remark: antenna gain=3.6dBi

Global United Technology Services Co., Ltd. Report No.: GTS202003000049F02 Authorized Signature: Robinson Lo Laboratory Manager This results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Page 1 of 33 Test Report (Bluetooth) Applicant: Shenzhen Dangs Science and Technology Co., Ltd Address of Applicant: 901,GDC Building,Keji Mid 3rd Road Maling Community, Yuehai Sub-district,Nanshan,Shenzhen,China Manufacturer: Shenzhen Dangs Science and Technology Co., Ltd Address of Manufacturer: 901,GDC Building,Keji Mid 3rd Road Maling Community, Yuehai Sub-district,Nanshan,Shenzhen,China Factory: Shenzhen Xinxiang Electronic Technology Co.,LTD Address of Factory: 3F No.18 Lingbei Five Road FengHuang First Industrial Zone Fuyong Town Boan Disttct Shenzhen, China Equipment Under Test (EUT) Product Name: Smart Projector Model No.: DBF1C, DBF1, DBF1S, DBM1, DBC1, DBC1S, DBD1, DBD1S, DBB1, DBB1C, DBB1S, DBB2, DBB2S, DBH1, DBH1S, DBH1C, DBX1, DBF3, DBF3PRO, DBF3M, DBF3J, DBF3H, DBTH2020, DBW2020, DBTW2020, DBF4 Trade Mark: DangBei FCC ID: 2AV2JDBF1C001 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Date of sample receipt: March 17, 2020 Date of Test: March 18-30, 2020 Date of report issued: March 31, 2020 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. Report No.: GTS202003000049F02 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 2 of 33 2 Version Version No. Date Description 00 March 31, 2020 Original Prepared By: Date: March 31, 2020 Project Engineer Check By: Date: March 31, 2020 Reviewer Report No.: GTS202003000049F02 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 3 of 33 3 Contents Page 1 COVER PAGE ........................................................................................................................................... 1 2 VERSION ...................................................................................................................................................2 3 CONTENTS ...............................................................................................................................................3 4 TEST SUMMARY ......................................................................................................................................4 5 GENERAL INFORMATION .......................................................................................................................5 5.1 GENERAL DESCRIPTION OF EUT ..........................................................................................................5 5.2 TEST MODE .........................................................................................................................................7 5.3 DESCRIPTION OF SUPPORT UNITS ........................................................................................................7 5.4 DEVIATION FROM STANDARDS ..............................................................................................................7 5.5 ABNORMALITIES FROM STANDARD CONDITIONS ....................................................................................7 5.6 TEST FACILITY ....................................................................................................................................7 5.7 TEST LOCATION ..................................................................................................................................7 5.8 ADDITIONAL INSTRUCTIONS ..................................................................................................................7 6 TEST INSTRUMENTS LIST ......................................................................................................................8 7 TEST RESULTS AND MEASUREMENT DATA .....................................................................................10 7.1 ANTENNA REQUIREMENT ....................................................................................................................10 7.2 CONDUCTED EMISSIONS ....................................................................................................................11 7.3 CONDUCTED OUTPUT POWER ............................................................................................................14 7.4 CHANNEL BANDWIDTH .......................................................................................................................16 7.5 POWER SPECTRAL DENSITY ..............................................................................................................18 7.6 BAND EDGES .....................................................................................................................................20 7.6.1 Conducted Emission Method ......................................................................................................20 7.6.2 Radiated Emission Method .........................................................................................................21 7.7 SPURIOUS EMISSION .........................................................................................................................23 7.7.1 Conducted Emission Method ......................................................................................................23 7.7.2 Radiated Emission Method .............................................…

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Global United Technology Services Co., Ltd. Report No.: GTS202003000049F03 Authorized Signature: Robinson Lo Laboratory Manager This results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Page 1 of 45 Test Report Applicant: Shenzhen Dangs Science and Technology Co., Ltd Address of Applicant: 901,GDC Building,Keji Mid 3rd Road Maling Community, Yuehai Sub-district,Nanshan,Shenzhen,China Manufacturer: Shenzhen Dangs Science and Technology Co., Ltd Address of Manufacturer: 901,GDC Building,Keji Mid 3rd Road Maling Community, Yuehai Sub-district,Nanshan,Shenzhen,China Factory: Shenzhen Xinxiang Electronic Technology Co.,LTD Address of Factory: 3F No.18 Lingbei Five Road FengHuang First Industrial Zone Fuyong Town Boan Disttct Shenzhen, China Equipment Under Test (EUT) Product Name: Smart Projector Model No.: DBF1C, DBF1, DBF1S, DBM1, DBC1, DBC1S, DBD1, DBD1S, DBB1, DBB1C, DBB1S, DBB2, DBB2S, DBH1, DBH1S, DBH1C, DBX1, DBF3, DBF3PRO, DBF3M, DBF3J, DBF3H, DBTH2020, DBW2020, DBTW2020, DBF4 Trade Mark: DangBei FCC ID: 2AV2JDBF1C001 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Date of sample receipt: March 17, 2020 Date of Test: March 18-30, 2020 Date of report issued: March 31, 2020 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. Report No.: GTS202003000049F03 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 2 of 45 2 Version Version No. Date Description 00 March 31, 2020 Original Prepared By: Date: March 31, 2020 Project Engineer Check By: Date: March 31, 2020 Reviewer Report No.: GTS202003000049F03 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 3 of 45 3 Contents Page 1 COVER PAGE ........................................................................................................................................... 1 2 VERSION ...................................................................................................................................................2 3 CONTENTS ...............................................................................................................................................3 4 TEST SUMMARY ......................................................................................................................................4 5 GENERAL INFORMATION .......................................................................................................................5 5.1 GENERAL DESCRIPTION OF EUT ..........................................................................................................5 5.2 TEST MODE .........................................................................................................................................7 5.3 DESCRIPTION OF SUPPORT UNITS ........................................................................................................7 5.4 DEVIATION FROM STANDARDS ..............................................................................................................7 5.5 ABNORMALITIES FROM STANDARD CONDITIONS ....................................................................................7 5.6 TEST FACILITY ....................................................................................................................................7 5.7 TEST LOCATION ..................................................................................................................................7 5.8 ADDITIONAL INSTRUCTIONS ..................................................................................................................7 6 TEST INSTRUMENTS LIST ......................................................................................................................8 7 TEST RESULTS AND MEASUREMENT DATA .....................................................................................10 7.1 ANTENNA REQUIREMENT ....................................................................................................................10 7.2 CONDUCTED EMISSIONS ....................................................................................................................11 7.3 CONDUCTED PEAK OUTPUT POWER ...................................................................................................14 7.4 CHANNEL BANDWIDTH .......................................................................................................................15 7.5 POWER SPECTRAL DENSITY ..............................................................................................................18 7.6 BAND EDGES .....................................................................................................................................21 7.6.1 Conducted Emission Method ......................................................................................................21 7.6.2 Radiated Emission Method .........................................................................................................23 7.7 SPURIOUS EMISSION .........................................................................................................................27 7.7.1 Conducted Emission Method ......................................................................................................27 7.7.2 Radiated Emission Method .............................................................…

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Test model number: DBF1C Radiated Emission Conducted Emission