WT38M2001 WIFI+BT Module RF exposure information RF Exposure Info

 

FCC RF EXPOSURE REPORT FCC ID: 2AC23-WT38M2001 Project No. Equipment Model Applicant Address According:

: 1708C160A

: WIFI+BT Module

: WT38M2001T

: Hui Zhou Gaoshengda Technology Co.,LTD

: NO.75 Zhongkai Development Area, Huizhou, Guangdong, China

: FCC Guidelines for Human Exposure IEEE C95.1 & FCC Part 2.1091 B T L I N C . No.3, Jinshagang 1st Road, Shixia, Dalang Town, Dongguan, China. TEL: +86-769-8318-3000 FAX: +86-769-8319-6000 MPE CALCULATION METHOD:

Calculation Method of RF Safety Distance:

where:

S = power density P = power input to the 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 Table for Filed Antenna BT&LE Ant. 1 Brand N/A Group 1 Model Name Antenna Type Connector Gain (dBi) N/A Internal N/A 3.56 Group 2 Ant. 1 Brand N/A Model Name Antenna Type Connector Gain (dBi) N/A Internal N/A 3.56 Note:

Group 1 and Group 2 are same type antenna, Group 1 is recorded as the worst case since which gain is same as Group 2. 2.4G WIFI Ant. 1 2 Brand GSD GSD Model Name N/A N/A Connector N/A N/A Gain

(dBi) 3.53 3.59 Note N/A N/A Group 1 Antenna Type Internal Internal Group 2 Antenna Type Model Name Brand GSD GSD Ant. 1 2 Note:

1. Group 1 and Group 2 are same type antenna, Group 1 is recorded as the worst case since Note N/A N/A Internal Internal N/A N/A N/A N/A Connector Gain

(dBi) 3.30 3.50 which gain is higher than Group 1. 2. The EUT incorporates a MIMO function. Physically, the EUT provides two completed transmitters and receivers (2T2R), all transmit signals are completely uncorrelated, then,Direction gain = GANT,that is Directional gain=3.59. 4. Operating Mode TX Mode 802.11b 802.11g 802.11n(20MHz) 802.11n(40MHz) 1TX V (ANT 1) V (ANT 1)

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2TX

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V (ANT 1+ANT 2) V (ANT 1+ANT 2) V (ANT 1+ANT 2) ANT 1 for 1TX was found to be the worst case and recorded 5G WIFI Group 1 Ant. Manufacturer Model Name 1 2 N/A N/A N/A N/A Group 2 Ant. Manufacturer Model Name Antenna Type Internal Internal Antenna Type Internal Internal Connector N/A N/A Gain

(dBi) 5.51 5.47 Connector Gain

(dBi) 4.10 4.58 N/A N/A 1 2 Note:

2. Group 1 and Group 2 are same type antenna, Group 1 is recorded as the worst case since N/A N/A N/A N/A which gain is higher than Group 1. The EUT incorporates a MIMO function. Physically, the EUT providestwo completedtransmitters and receivers (2T2R), all transmit signals are completely uncorrelated, then,Direction gain =

GANT,that is Directional gain=5.51 4. Operating Mode TX Mode 1TX 2TX 802.11a 802.11n(20MHz) 802.11n(40MHz) V (ANT 1)

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V (ANT 1+ANT 2) V (ANT 1+ANT 2) ANT 1 for 1TX was found to be the worst case and recorded TEST RESULTS EUT Temperature Test Voltage :

WIFI+BT Module 25 AC 120V/60Hz Model Name :

Relative Humidity: 55 %

WT38M2001T 2.4G WIFI Antenna Gain

(dBi) 3.59 Antenna Gain

(numeric) Peak Output Power (dBm) Peak Output Power (mW) 2.2856 26.85 484.1724 Power Density (S)

(mW/cm2) 0.22027 Limit of Power Density (S)

(mW/cm2) Test Result 1 Complies 5G Band UNII-1 Antenna Gain

(dBi) 5.51 Antenna Gain

(numeric) Peak Output Power (dBm) Peak Output Power (mW) 3.5563 15.94 39.2645 5G Band UNII-2A Antenna Gain

(dBi) 5.51 Antenna Gain

(numeric) Peak Output Power (dBm) Peak Output Power (mW) 3.5563 15.97 39.5367 5G Band UNII-2C Antenna Gain

(dBi) 5.51 Antenna Gain

(numeric) Peak Output Power (dBm) Peak Output Power (mW) 3.5563 15.75 37.5837 5G Band UNII-3 Antenna Gain

(dBi) 5.51 Antenna Gain

(numeric) Peak Output Power (dBm) Peak Output Power (mW) 3.5563 15.88 38.7258 Power Density (S)

(mW/cm2) 0.02779 Limit of Power Density (S)

(mW/cm2) Test Result 1 Complies Power Density (S)

(mW/cm2) 0.02799 Limit of Power Density (S)

(mW/cm2) Test Result 1 Complies Power Density (S)

(mW/cm2) 0.02660 Limit of Power Density (S)

(mW/cm2) Test Result 1 Complies Power Density (S)

(mW/cm2) 0.02741 Limit of Power Density (S)

(mW/cm2) Test Result 1 Complies BT Antenna Gain

(dBi) 3.56 Antenna Gain

(numeric) Peak Output Power (dBm) Peak Output Power (mW) 2.2699 5.96 3.9446 Power Density (S)

(mW/cm2) 0.00178 Limit of Power Density (S)

(mW/cm2) Test Result 1 Complies LE Antenna Gain

(dBi) 3.56 Antenna Gain

(numeric) Peak Output Power (dBm) Peak Output Power (mW) 2.2699 1.86 1.5346 Power Density (S)

(mW/cm2) 0.00069 Limit of Power Density (S)

(mW/cm2) Test Result 1 Complies For WLAN+BT simultaneous transmission MPE:

0.22027 /1+0.00178 /1=0.22205 Note: the calculated distance is 20 cm.