2ABM8-AC3AC1200 Dual Band USB WiFi Adapter

FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. FCC Warning This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE 1: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. NOTE 2: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

Report No.: W EXHIBI EUT View 1 EUT View 2 WTX19X120 T 2 - EUT 1 2 88111W-1/2 T EXTER RNAL PH HOTOGR APHS FCC Pa art 15E /FCC P Model: AC3 Part 15.247 Report No.: W EUT View 3 EUT View 4 WTX19X120 3 4 88111W-1/2 FCC Pa art 15E /FCC P Model: AC3 Part 15.247 Report No.: W EUT View 5 EUT View 6 WTX19X120 5 6 88111W-1/2 FCC Pa art 15E /FCC P Model: AC3 Part 15.247 Report No.: W EUT View 7 WTX19X120 7 88111W-1/2 FCC Pa art 15E /FCC P Model: AC3 Part 15.247

Report No.: W EXHIBI Proposed Specificatio n silk-screened Proposed WTX19X120 T 1 - PRO FCC ID La ns: Text is b d onto the EU Label Loca 88111W-1/2 ODUCT L abel Forma black in colo UT or shall be ation on EU LABELIN at r and justifie e affixed at a UT FCC NG ed. Labels ar conspicuous ID Label Lo re printed in location on t cation FCC Pa indelible ink the EUT. art 15E /FCC P k on perman Model: AC3 Part 15.247 nent adhesivee

Report No.: W EXHIBI EUT Housi n Solder Boa r WTX19X120 T 3 - EUT ng and Boar rd-Compone 88111W-1/2 T INTER rd View 1 ent View 1 NAL PHO OTOGRA APHS FCC Pa art 15E /FCC P Model: AC3 Part 15.247 Report No.: W Solder Boa r Antenna Vi WTX19X120 rd-Compone iew WIFI Ante 88111W-1/2 ent View 2 enna FCC Pa art 15E /FCC P Model: AC3 Part 15.247

1. MAXIMUM PERMISSIBLE EXPOSURE (MPE) 1.1 General Information Client Information Applicant: Trend-tech Technology Co., Limited Address of applicant: Room 205, Building No. 5, YaoXing HuaYuan, XinHuiDaDao No. 45, XinHui District, JiangMen City, GuangDong Province, China | Postage Code:529100 Manufacturer: Trend-tech Technology Co., Limited Address of manufacturer: Room 205, Building No. 5, YaoXing HuaYuan, XinHuiDaDao No. 45, XinHui District, JiangMen City, GuangDong Province, China | Postage Code:529100 General Description of EUT: Product Name: AC1200 Dual Band USB WiFi Adapter Trade Name: BrosTrend Model No.: AC3 Adding Model(s): AC1, AC5, AC1L, AC3L, AC5L FCC ID: 2ABM8-AC3 Rated Voltage: DC5V Technical Characteristics of EUT: 2.4G WiFi Support Standards: 802.11b, 802.11g, 802.11n Frequency Range: 2412-2462MHz for 802.11b/g/n(HT20) 2422-2452MHz for 802.11n(HT40) RF Output Power: 17.20dBm (Conducted) Type of Modulation: DBPSK,BPSK,DQPSK,QPSK,16QAM,64QAM Data Rate: 1-11Mbps, 6-54Mbps, up to 300Mbps Quantity of Channels: 11 for 802.11b/g/n(HT20); 7 for 802.11n(HT40) Channel Separation: 5MHz Type of Antenna: External Antenna Antenna Gain: 5.0dBi 5G WiFi Support Standards: 802.11a, 802.11n(HT20) , 802.11n-HT40, 802.11ac-VH80 Frequency Range: 5150-5250MHz, 5725-5850MHz RF Output Power: 16.35dBm (Conducted) Type of Modulation: BPSK, QPSK,16QAM,64QAM, 256QAM Data Rate: 6-54Mbps, up to 866.6Mbps Type of Antenna: External Antenna Antenna Gain: 5.0dBi 1.2 Standard Applicable According to §1.1307(b)(1) and KDB 447498 D01 General RF Exposure Guidance v06, system operating under the provisions of this section shall be operating in a manner that the public is not exposed to radio frequency energy level in excess limit for maximum permissible exposure. (a) Limits for Occupational / Controlled Exposure Frequency range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/cm 2 ) Averaging Times | E | 2 , | H | 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842/f 4.89/f (900/f)* 6 30-300 61.4 0.163 1.0 6 300-1500 / / F/300 6 1500-100000 / / 5 6 (b) Limits for General Population / Uncontrolled Exposure Frequency range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/cm 2 ) Averaging Times | E | 2 , | H | 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 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 1500-100000 / / 1 30 Note: f = frequency in MHz: * = Plane-wave equivalents power density 1.3 MPE Calculation Method S = (30*P*G) / (377*R 2 ) S = power density (in appropriate units, e.g., mw/cm 2 ) P = power input to the antenna (in appropriate units, e.g., mw) G = power gain of the antenna in the direction of interest relative to an isotropic radiator, the power gain factor is normally numeric gain. R = distance to the center of radiation of the antenna (in appropriate units, e.g., cm) 1.4 MPE Calculation Result For 2.4G WiFi: Maximum Tune-Up output power: 18(dBm) Maximum peak output power at antenna input terminal: 63.10(mW) Prediction distance: >20(cm) Prediction frequency: 2412 (MHz) Antenna gain:5.0(dBi) Directional gain (numeric gain): 3.16 The worst case is power density at prediction frequency at 20cm: 0.0397(mw/cm 2 ) MPE limit for general population exposure at prediction frequency: 1 (mw/cm 2 ) The exclusion thresholds is 0.0397mw/cm 2 <1 mw/cm 2 For 5G WiFi： For U-NII-1:5150-5250MHz: Maximum Tune-Up output power: 17(dBm) Maximum peak output power at antenna input terminal: 50.12 (mW) Prediction distance: >20(cm) Prediction frequency: 5230 (MHz) Antenna gain:5.0(dBi) Directional gain (numeric gain): 3.16 The worst case is power density at prediction frequency at 20cm: 0.0315(mw/cm 2 ) MPE limit for general population exposure at prediction frequency: 1 (mw/cm 2 ) The exclusion thresholds is 0.0315mw/cm 2 <1 mw/cm 2 For U-NII-3: 5725-5850MHz: Maximum Tune-Up output power: 17(dBm) Maximum peak output power at antenna input terminal: 50.12 (mW) Prediction distance: >20(cm) Prediction frequency: 5825 (MHz) Antenna gain:5.0(dBi) Directional gain (numeric gain): 3.16 The worst case is power density at prediction frequency at 20cm: 0.0315(mw/cm 2 ) MPE limit for general population exposure at prediction frequency: 1 (mw/cm 2 ) The exclusion thresholds is 0.0315mw/cm 2 <1 mw/cm 2 Result: Pass

Model: AC3 Report No.: WTX19X12088111W-1 Page 1 of 104 FCC Part 15E FCC Part 15E Measurement and Test Report For Trend-tech Technology Co., Limited Room 205, Building No. 5, YaoXing HuaYuan, XinHuiDaDao No. 45, XinHui District, JiangMen City, GuangDong Province, China | Postage Code:529100 FCC ID: 2ABM8-AC3 FCC Rule(s): FCC Part 15.407 Product Description: AC1200 Dual Band USB WiFi Adapter Tested Model: AC3 Report No.: WTX19X12088111W-1 Sample Receipt Date: 2019-12-18 Tested Date: 2019-12-18 to 2020-01-09 Issued Date: 2020-01-09 Tested By: Jack Huang / Engineer Reviewed By: Lion Cai / RF Manager Approved & Authorized By: Silin Chen / Manager Prepared By: Shenzhen SEM Test Technology Co., Ltd. 1/F, Building A, Hongwei Industrial Park, Liuxian 2nd Road, Bao'an District, Shenzhen, P.R.C.（518101） Tel.: +86-755-33663308 Fax.: +86-755-33663309 Website: www.semtest.com.cn Note: This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen SEM Test Technology Co., Ltd. Model: AC3 Report No.: WTX19X12088111W-1 Page 2 of 104 FCC Part 15E TABLE OF CONTENTS 1. GENERAL INFORMATION ................................................................................................................................... 4 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ............................................................................... 4 1.2 TEST STANDARDS ................................................................................................................................................... 5 1.3 TEST METHODOLOGY ............................................................................................................................................. 5 1.4 TABLE FOR PARAMETERS OF TEST SOFTWARE SETTING ......................................................................................... 5 1.5 EUT OPERATING DURING TEST .............................................................................................................................. 7 1.6 TEST FACILITY ....................................................................................................................................................... 7 1.7 EUT SETUP AND TEST MODE ................................................................................................................................. 8 1.8 MEASUREMENT UNCERTAINTY .............................................................................................................................. 9 1.9 TEST EQUIPMENT LIST AND DETAILS ................................................................................................................... 10 2. SUMMARY OF TEST RESULTS ......................................................................................................................... 12 3. RF EXPOSURE ....................................................................................................................................................... 13 3.1 STANDARD APPLICABLE ....................................................................................................................................... 13 3.2 TEST RESULT........................................................................................................................................................ 13 4. ANTENNA REQUIREMENT ................................................................................................................................ 14 4.1 STANDARD APPLICABLE ....................................................................................................................................... 14 4.2 EVALUATION INFORMATION ................................................................................................................................ 14 5. CONDUCTED EMISSIONS .................................................................................................................................. 15 5.1 TEST PROCEDURE ................................................................................................................................................. 15 5.2 BASIC TEST SETUP BLOCK DIAGRAM ................................................................................................................... 15 5.3 TEST RECEIVER SETUP ......................................................................................................................................... 15 5.4 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 15 6. POWER SPECTRAL DENSITY ........................................................................................................................... 18 6.1 STANDARD APPLICABLE ....................................................................................................................................... 18 6.2 TEST PROCEDURE ................................................................................................................................................. 18 6.3 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 19 7. EMISSION BANDWIDTH AND OCCUPIED BANDWIDTH ........................................................................... 37 7.1 STANDARD APPLICABLE ....................................................................................................................................... 37 7.2 TEST PROCEDURE ................................................................................................................................................. 37 7.3 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 39 8. MAXIMUM CONDUCTED OUTPUT POWER ......................................................................…

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Report No.: W EXHIBI Conducted Radiation E WTX19X120 T 4 - TES Emission Te Emission Tes 88111W-1/2 ST SETUP est Setup st Setup (Belo P PHOTO ow 30MHz) OGRAPH HS FCC Pa art 15E /FCC P Model: AC3 Part 15.247 Report No.: W Radiation E Radiation E WTX19X120 Emission Tes Emission Tes 88111W-1/2 st Setup (30M st Setup (1GH MHz to 1GHz Hz to 18GHz z) z) FCC Pa art 15E /FCC P Model: AC3 Part 15.247 Report No.: W Radiation E WTX19X120 Emission Tes 88111W-1/2 st Setup (Abo ove 18GHz) FCC Pa art 15E /FCC P Model: AC3 Part 15.247