RF Exposure Information

FCC ID: BKMAE-STI6110

RF Exposure Info

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FCCID_4335542

MRT Technology (Taiwan) Co., Ltd Report No.: 1905TW0109-U5 Phone: +886-3-3288388 Report Version: V01 Web: www.mrt-cert.com Issue Date: 06-18-2019 RF Exposure Evaluation Declaration FCC ID: BKMAE-STI6110 APPLICANT: SEIKO EPSON CORPORATION Application Type: Certification Product: Streaming Media Player Model No.: STI6110-D101(RoHS) Trademark: EPSON FCC Classification: FCC Part 15 Spread Spectrum Transmitter (DSS) Digital Transmission System (DTS) Unlicensed National Information Infrastructure (NII) Test Procedure(s): KDB 447498 D01v06 Test Date: June 13, 2019 Reviewed By: ( Paddy Chen ) Approved By: (Chenz Ker) The test results relate only to the samples tested. The test results shown in the test report are traceable to the national/international standards through the calibration of the equipment and evaluated measurement uncertainty herein. The test report shall not be reproduced except in full without the written approval of MRT Technology (Taiwan) Co., Ltd. FCC ID: BKMAE-STI6110 Page Number: 1 of 7

Report No.: 1905TW0109-U5 Revision History Report No. Version Description Issue Date Note 1905TW0109-U5 Rev. 01 Initial report 06-18-2019 Valid FCC ID: BKMAE-STI6110 Page Number: 2 of 7

Report No.: 1905TW0109-U5 1. PRODUCT INFORMATION 1.1. Equipment Description Product Name: Streaming Media Player Model No.: STI6110-D101(RoHS) Brand Name: EPSON Wi-Fi Specification: 802.11a/b/g/n/ac Bluetooth Specification: v4.2 dual mode 1.2. Description of Available Antennas Antenna Type Frequency TX Max Antenna Gain CDD Directional Gain (dBi) Band (MHz) Paths (dBi) For Power For PSD Wi-Fi Antenna 2412 ~ 2462 2 1.8 1.8 4.81 PCB Antenna 5150 ~ 5250 2 7.1 7.1 10.11 5725 ~ 5850 2 3.0 3.0 6.01 Bluetooth Antenna PCB Antenna 2402 ~ 2480 1 1.6 -- -- Note: The EUT supports Cyclic Delay Diversity (CDD) mode, and CDD signals are correlated. For CDD transmissions, directional gain is calculated as follows, NANT = 2, NSS = 1. If all antennas have the same gain, GANT, Directional gain = GANT + Array Gain, where Array Gain is as follows. • For power spectral density (PSD) measurements on all devices, Array Gain = 10 log (NANT/ NSS) dB = 3.01; • For power measurements on IEEE 802.11 devices, Array Gain = 0 dB for NANT ≤ 4; FCC ID: BKMAE-STI6110 Page Number: 3 of 7

Report No.: 1905TW0109-U5 1.3. Description of Antenna RF Port Wi-Fi & Bluetooth Antenna RF Port Software Control Port Ant 1 (Wi-Fi) Ant 2 (Wi-Fi & Bluetooth) FCC ID: BKMAE-STI6110 Page Number: 4 of 7

Report No.: 1905TW0109-U5 2. RF Exposure Evaluation 2.1. Limits According to FCC 1.1310: 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 1.1307(b) LIMITS FOR MAXIMUM PERMISSIBLE EXPOSURE (MPE) Frequency Range Electric Field Magnetic Field Power Density Average Time 2 (MHz) Strength (V/m) Strength (A/m) (mW/cm ) (Minutes) (A) Limits for Occupational/ Control Exposures 300-1500 -- -- f/300 6 1500-100,000 -- -- 5 6 (B) Limits for General Population/ Uncontrolled Exposures 300-1500 -- -- f/1500 6 1500-100,000 -- -- 1 30 f= Frequency in MHz Calculation Formula: Pd = (Pout*G)/(4*pi*r2) 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 is the limit of MPE, 1mW/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. FCC ID: BKMAE-STI6110 Page Number: 5 of 7

Report No.: 1905TW0109-U5 2.2. Test Result of RF Exposure Evaluation Product Streaming Media Player Test Item RF Exposure Evaluation Antenna Gain: Refer to clause 1.2. Test Mode Frequency Band Max Conducted Antenna Gain Maximum EIRP (MHz) Power (dBi) (dBm) (dBm) Bluetooth 2402 ~ 2480 4.43 1.6 6.03 802.11b/g/n 2412 ~ 2462 23.03 1.8 24.83 5180 ~ 5240 15.17 7.1 22.27 802.11a/n/ac 5745 ~ 5825 21.96 3.0 24.96 Test Mode Frequency Band Maximum EIRP Power Density at Limit (MHz) (dBm) R = 20 cm (mW/cm2) (mW/cm2) Bluetooth 2402 ~ 2480 6.03 0.0008 1 802.11b/g/n 2412 ~ 2462 24.83 0.0605 1 5180 ~ 5240, 22.27 0.0336 1 802.11a/n/ac 5745 ~ 5825 24.96 0.0623 1 CONCLUSION: Due to WLAN 2.4GHz Band or WLAN 5GHz Band can transmit simultaneously with Bluetooth. The max Power Density at R (20 cm) = 0.0008mW/cm2 + 0.0623mW/cm2 = 0.0631mW/cm2 < 1mW/cm2. So the safety distance is 20cm for Streaming Media Player installed without any other radio equipment. The End FCC ID: BKMAE-STI6110 Page Number: 6 of 7

Report No.: 1905TW0109-U5 Appendix A - EUT Photograph Refer to “1905TW0109-UE” file. FCC ID: BKMAE-STI6110 Page Number: 7 of 7


Document Created: 2019-06-23 23:07:23
Document Modified: 2019-06-23 23:07:23
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