MPE

FCC ID: 2AQJT-UWA5

RF Exposure Info

Download: PDF
FCCID_4039039

Page 1 of 7 RF Exposure evaluation Test report On Behalf of Actions Microelectronics Co., Ltd. For Wifi dongle Model No.: UWA5, EZC-5201BS, EZC-5200BS FCC ID: 2AQJT-UWA5 Prepared for : Actions Microelectronics Co., Ltd. 201, No.9 Building, Software Park, KeJiZhong Er Road, GaoXinQu, NanShan, Shenzhen, China Prepared By : Shenzhen HUAK Testing Technology Co., Ltd. 1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park, Fuhai Street, Bao'an District, Shenzhen City, China Date of Test: Mar. 18, 2018 ~ Mar. 28, 2018 Date of Report: Mar. 28, 2018 Report Number: HK180318312-1E

Page 2 of 7 1.1Applicable Standard According to §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. According to §1.1310 and §2.1091 RF exposure is calculated. KDB447498 v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies 1.2 Requirement Systems operating under the provisions of FCC 47 CFR 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. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as mobile device whereby a distance of 0.2m normally can be maintained between the user and the device, and below RF Permissible Exposure limit shall comply with. In accordance with KDB447498D01 for Simultaneous transmission MPE test exclusion applies when the sum of the MPE ratios for all simultaneous transmitting antennas incorporated in a host device, based on the calculated/estimated, numerically modeled or measured field strengths or power density, is ≤ 1.0. The MPE ratio of each antenna is determined at the minimum test separation distance required by the operating configurations and exposure conditions of the host device, according to the ratio of field strengths or power density to MPE limit, at the test frequency. Either the maximum peak or spatially averaged results from measurements or numerical simulations may be used to determine the MPE ratios. Spatial averaging does not apply when MPE is estimated using simple calculations based on far-field plane-wave equivalent conditions. The antenna installation and operating requirements for the host device must meet the minimum test separation distances required by all antennas, in both standalone and simultaneous transmission operations, to satisfy compliance. 1.3 Limit Limits for Maximum Permissible Exposure (MPE)/Controlled Exposure Averaging Frequency Electric Field Magnetic Field Power Density Time Range(MHz) Strength(V/m) Strength(A/m) (mW/cm²) (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 614 1.63 (100) * 6 3.0 – 30 1842/f 4.89/f (900/f2)* 6 30 – 300 61.4 0.163 1.0 6

Page 3 of 7 300 – 1500 / / f/300 6 1500 – / / 5 6 100,000 Limits for Maximum Permissible Exposure (MPE)/Uncontrolled Exposure Averaging Frequency Electric Field Magnetic Field Power Density Time Range(MHz) Strength(V/m) Strength(A/m) (mW/cm²) (minute) Limits for Occupational/Controlled Exposure 0.3 – 3.0 614 1.63 (100) * 30 3.0 – 30 824/f 2.19/f (180/f2)* 30 30 – 300 27.5 0.073 0.2 30 300 – 1500 / / f/1500 30 1500 – / / 1.0 30 100,000 F=frequency in MHz *=Plane-wave equivalent power density Manufacturing tolerance 2.4G WiFi IEEE 802.11b (Average) Channel Channel 1 Channel 6 Channel 11 Target (dBm) 13 13 13 Tolerance ±(dB) 1.0 1.0 1.0 IEEE 802.11g (Average) Channel Channel 1 Channel 6 Channel 11 Target (dBm) 12 12 12 Tolerance ±(dB) 1.0 1.0 1.0 IEEE 802.11n HT20 (Average) Channel Channel 1 Channel 6 Channel 11 Target (dBm) 12 12 12 Tolerance ±(dB) 1.0 1.0 1.0 IEEE 802.11n HT40 (Average) Channel Channel 1 Channel 6 Channel 11 Target (dBm) 11 11 11 Tolerance ±(dB) 1.0 1.0 1.0

Page 4 of 7 5G WiFi（5150-5250） IEEE 802.11a (Average) Channel Channel 5180 Channel 5200 Channel 5240 Target (dBm) 10 10 10 Tolerance ±(dB) 1.0 1.0 1.0 IEEE 802.11n HT20 (Average) Channel Channel 5180 Channel 5200 Channel 5240 Target (dBm) 9 9 9 Tolerance ±(dB) 1.0 1.0 1.0 IEEE 802.11n HT40 (Average) Channel Channel 5190 Channel 5230 Target (dBm) 9 9 Tolerance ±(dB) 1.0 1.0 IEEE 802.11n HT80 (Average) Channel Channel 5190 Channel 5230 Target (dBm) 8 8 Tolerance ±(dB) 1.0 1.0 5G WiFi（5725-5850） IEEE 802.11a (Average) Channel Channel 5745 Channel 5785 Channel 5825 Target (dBm) 10 10 10 Tolerance ±(dB) 1.0 1.0 1.0 IEEE 802.11n HT20 (Average) Channel Channel 5745 Channel 5785 Channel 5825 Target (dBm) 9 9 9 Tolerance ±(dB) 1.0 1.0 1.0 IEEE 802.11n HT40 (Average) Channel Channel 5755 Channel 5795 Target (dBm) 9 9 Tolerance ±(dB) 1.0 1.0 IEEE 802.11n HT80 (Average) Channel Channel 5755 Channel 5795 Target (dBm) 8 8 Tolerance ±(dB) 1.0 1.0

Page 5 of 7 Bluetooth GFSK (Average) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 3 3 1.0 Tolerance ±(dB) 1.0 1.0 1.0 8DPSK (Average) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 2 2 2 Tolerance ±(dB) 1.0 1.0 1.0 π/4DQPSK (Average) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 3 3 3 Tolerance ±(dB) 1.0 1.0 1.0 BLE (Average) Channel Channel 0 Channel 19 Channel 39 Target (dBm) 0 0 0 Tolerance ±(dB) 1.0 1.0 1.0

Page 6 of 7 1.5 MPE Calculation Method Predication of MPE limit at a given distance Equation from page 18 of OET Bulletin 65, Edition 97-01 S=PG/4πR² Where: S=power density P=power input to antenna G=power gain of the antenna in the direction of interest relative to an isotropic radiator R=distance to the center of radiation of the antenna As declared by the Applicant, the EUT transmits with the maximum soure-baed Duty Cycle of 100%-see the User manual, and the EUT is a wireless device used in a mobile application, at least 20 cm from any body part of the user or nearby persons; from the maximum EUT RF output power, the minimum mobile separation distance, r =20cm, as well as the gain of the used antenna is 1.00 dBi for 2.4GWLAN/5.2GWLAN/5.8GWLAN, the gain of the used antenna is 0 dBi for BT/BLE and the power drift from Turn-up Procedure provide by manufacturer as following states, the RF power density can be obtained.

Page 7 of 7 1.6 Evaluation Result 1.6.1 Standalone MPE Minimum Output Power Power Power Antenna Separation (Turn-up Density Density Test Mode Gain Distance Procedure) At 20 cm Limit Results (Numeric) 2 2 (cm) dBm mW (mW/cm ) (mW/cm ) 2.4G 20.00 14 25.12 1.259 0.00629 1.0000 PASS WIFI 2.4G BT 20.00 4 2.51 1 0.00050 1.0000 PASS 5.2G 20.00 11 12.59 1.259 0.00315 1.0000 PASS WIFI 5.8G 20.00 11 12.59 1.259 0.00315 1.0000 PASS WIFI 2.4GBLE 20.00 1 1 1 0.00020 1.0000 PASS 1.6.2 Simultaneous transmission MPE Considerations According to KDB447498 :For mobile exposure host platform to qualify for simultaneous transmission MPE test exclusion, all transmitters and antennas in the host must be either evaluated for MPE compliance, by measurement or computational modeling, or qualify for the standalone MPE test exclusion in section 7.1. Simultaneous transmission MPE test exclusion applies when the sum of the MPE ratios for all simultaneous transmitting antennas incorporated in a host device, based on the calculated/estimated, numerically modeled or measured field strengths or power density, is ≤ 1.0. This means that: ∑ of MPE ratios ≤ 1.0 The WIFI and BT can not Simultaneous transmissing, WIFI 2.4G and 5G can not Simultaneous transmissing. 1.7Conclusion This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. .....................End of Report........................


Document Created: 2018-10-16 17:54:46
Document Modified: 2018-10-16 17:54:46
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC