RF Exposure Report

FCC ID: 2ANDL-TYZS3

RF Exposure Info

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FCCID_4447180

Report No: 708881974822-00A MPE Calculation Applicant: Hangzhou Tuya Information Technology Co.,Ltd Address: Room701,Building3,More Center,No.87 GuDun Road,Hangzhou,Zhejiang China Product: TYZS3 Zigbee Module FCC ID: 2ANDLT-TYZS3 Model No.: TYZS3; TYZS3_IPEX Reference 708881974822-00 RF report # According to subpart 15.247(i)and subpart §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Limits for Maximum Permissible Exposure (MPE) (§1.1310, §2.1091) (B) Limits for General Population/Uncontrolled Exposure Frequency Range Electric Field Magnetic Field Power Density Averaging Time (MHz) Strength (V/m) Strength (A/m) (mW/cm2) (minutes) 0.3–1.34 614 1.63 *(100) 30 1.34–30 824/f 2.19/f *(180/f²) 30 30–300 27.5 0.073 0.2 30 300–1,500 / / f/1500 30 1,500–100,000 / / 1.0 30 f = frequency in MHz; * = Plane-wave equivalent power density; According to §1.1310 and §2.1091 RF exposure is calculated. Calculated Formulary: Predication of MPE limit at a given distance S = PG/4πR²= 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 (appropriate units, e.g., cm); TÜ V SÜ D Certification and Testing (China) Co., Ltd. Shanghai Branch 3-13, No.151, Heng Tong Road, Shanghai, 200070, P.R. China Phone: +86 21 61410123, Fax:+86 21 61408600

Report No: 708881974822-00A Calculated Data: PCB antenna Maximum peak output power at antenna input terminal (dBm): 9.74 Maximum peak output power at antenna input terminal (mW): 9.42 tune-up conducted power(dBm): 10 tune-up conducted power(dBm): 10 Prediction distance (cm): 20 Antenna Gain, typical (dBi): 2.2 Maximum Antenna Gain (numeric): 1.66 The worst case is power density at predication frequency at 20 cm (mW/cm 2): 0.0032 MPE limit for general population exposure at prediction frequency (mW/cm 2): 1.0 Note: The tune-up conducted power (10 dBm) was declared by the manufacturer. 0.0033 (mW/cm2) < 1 (mW/cm 2) Result: Compliant Calculated Data: External antenna Maximum peak output power at antenna input terminal (dBm): 9.74 Maximum peak output power at antenna input terminal (mW): 9.42 tune-up conducted power(dBm): 10 tune-up conducted power(mW): 10 Prediction distance (cm): 20 Antenna Gain, typical (dBi): 2.5 Maximum Antenna Gain (numeric): 1.78 The worst case is power density at predication frequency at 20 cm (mW/cm2): 0.0035 MPE limit for general population exposure at prediction frequency (mW/cm 2): 1.0 Note: The tune-up conducted power (10 dBm) was declared by the manufacturer. 0.0035 (mW/cm2) < 1 (mW/cm 2) Result: Compliant - TÜV SÜD Certification and Testing (China) Co., Ltd. Shanghai Branch Reviewed by: Prepared by: Tested by: _____________________ _____________________ ______________________ Hui TONG Jiaxi XU Wenqiang LU EMC Section Manager EMC Project Engineer EMC Test Engineer Date: 2019-08-07 Date: 2019-08-07 Date: 2019-08-07 TÜ V SÜ D Certification and Testing (China) Co., Ltd. Shanghai Branch 3-13, No.151, Heng Tong Road, Shanghai, 200070, P.R. China Phone: +86 21 61410123, Fax:+86 21 61408600


Document Created: 2019-09-12 08:56:51
Document Modified: 2019-09-12 08:56:51
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