Report_FCC_MPE

FCC ID: 2AJVQ-ZD7638GU

RF Exposure Info

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FCCID_4141349

Qingdao Intelligent&Precise Electronics Co., Ltd
MPE ASSESSMENT REPORT
Report Type:
FCC Part §2.1091, §2.1093 and §1.1307(b) assessment report


Model:
ZDGFMT7638GU


REPORT NUMBER:
181200571SHA-004


ISSUE DATE:
January 2, 2019



DOCUMENT CONTROL NUMBER:
TTRFFCCMPE-01_V1 © 2018 Intertek


                                                                                                                 Intertek Testing Services Shanghai
                                                                                                       Building No.86, 1198 Qinzhou Road (North)
                                                                                                                      Caohejing Development Zone
                                                                                                                           Shanghai 200233, China

                                                                                                                      Telephone: 86 21 6127 8200
TEST REPORT                                                                                                                   www.intertek.com

                                                                                                                   Report no.: 181200571SHA-004


Applicant:                               Qingdao Intelligent&Precise Electronics Co., Ltd
                                         No.218, Qianwangang Road, Qingdao Economic&Technological
                                         Development Zone, Shandong, China.


Manufacturer:                            Qingdao Intelligent&Precise Electronics Co., Ltd
                                         No.218, Qianwangang Road, Qingdao Economic&Technological
                                         Development Zone, Shandong, China.


Manufacturing site:                      Qingdao Intelligent&Precise Electronics Co., Ltd
                                         No.218, Qianwangang Road, Qingdao Economic&Technological
                                         Development Zone, Shandong, China.


FCC ID:                                  2AJVQ-ZD7638GU


SUMMARY:
 The equipment complies with the requirements according to the following standard(s) or Specification:
 KDB447498 D01 General RF Exposure Guidance v06
 FCC Part2.1091, FCC Part2.1093 FCC Part1.1307(b)




PREPARED BY:                                                                REVIEWED BY:




Project Engineer                                                            Reviewer
Nemo Li                                                                     Daniel Zhao




This report is for the exclusive use of Intertek's Client and is provided pursuant to the agreement between Intertek and its Client. Intertek's
responsibility and liability are limited to the terms and conditions of the agreement. Intertek assumes no liability to any party, other than to the
Client in accordance with the agreement, for any loss, expense or damage occasioned by the use of this report. Only the Client is authorized to
permit copying or distribution of this report and then only in its entirety. Any use of the Intertek name or one of its marks for the sale or
advertisement of the tested material, product or service must first be approved in writing by Intertek. The observations and test results in this
report are relevant only to the sample tested. This report by itself does not imply that the material, product, or service is or has ever been
under an Intertek certification program.

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                                                                           Report No.: 181200571SHA-004



TEST REPORT


                                            Revision History
      Report No.                  Version              Description                    Issued Date
 181200571SHA-004                 Rev. 01        Initial issue of report             January 2, 2019




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                                                                              Report No.: 181200571SHA-004



TEST REPORT


1 GENERAL INFORMATION

1.1 Description of Equipment Under Test (EUT)

 Product name:                    Wireless Module

 Type/Model:                      ZDGFMT7638GU
                                  EUT is a Wireless Module with WiFi and Bluetooth function, and has
 Description of EUT:              only one model.
 Rating:                          DC 5V
 EUT type:                            Table top     Floor standing
 Software Version:                /
 Hardware Version:                /
 Sample received date:            December 07, 2018
 Date of test:                    December 07, 2018 ~ January 2, 2019

1.2 Technical Specification

 Frequency Range:                  2400MHz ~ 2483.5MHz
 Support Standards:                IEEE 802.11b, IEEE 802.11g, IEEE 802.11n(HT20), IEEE 802.11n(HT40)
                                   IEEE 802.11b: DSSS (CCK, DQPSK, DBPSK)
                                   IEEE 802.11g: OFDM (64-QAM, 16-QAM, QPSK, BPSK)
                                   IEEE 802.11n(HT20): OFDM (64-QAM, 16-QAM, QPSK, BPSK)
 Type of Modulation:               IEEE 802.11n(HT40): OFDM (64-QAM, 16-QAM, QPSK, BPSK)
                                   11 Channels for 802.11b, 802.11g and 802.11n(HT20)
 Channel Number:                   9 Channels for 802.11n(HT40)
 Channel Separation:               5 MHz


 Frequency Range:                  2400MHz to 2483.5MHz
 Support Standards:                Bluetooth Low Energy
 Operating Frequency:              2402MHz to 2480MHz
 Type of Modulation:               GFSK
 Channel Number:                   40 (0-39)
 Channel Separation:               2MHz
 Antenna Information:              PIFA Antenna, 2.3dBi


 Frequency Range:                  2400MHz ~ 2483.5MHz
 Support Standards:                Bluetooth BR+EDR
 Operating Frequency:              2402MHz to 2480MHz

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TEST REPORT

 Modulation Technique:            Frequency Hopping Spread Spectrum(FHSS)
 Type of Modulation:              GFSK, π/4-DQPSK, 8DPSK
 Channel Number:                  79 (0 - 78)
 Channel Separation:              1 MHz
 Antenna:                         PIFA Antenna, 2,3dBi




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TEST REPORT


1.3 Description of Test Facility

 Name:                   Intertek Testing Services Shanghai

 Address:                Building 86, No. 1198 Qinzhou Road(North), Shanghai 200233, P.R. China

 Telephone:              86 21 61278200

 Telefax:                86 21 54262353



 The test facility is    CNAS Accreditation Lab
 recognized,             Registration No. CNAS L0139
 certified, or
                         FCC Accredited Lab
 accredited by these
                         Designation Number: CN1175
 organizations:
                         IC Registration Lab
                         Registration code No.: 2042B-1
                         VCCI Registration Lab
                         Registration No.: R-4243, G-845, C-4723, T-2252
                         A2LA Accreditation Lab
                         Certificate Number: 3309.02




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                                                                       Report No.: 181200571SHA-004



TEST REPORT


2 MPE Assessment
      Test result:          Pass

2.1 MPE Assessment Limit

Mobile device exposure for standalone operations:
Frequency range E-field strength H-field strength            B-field          Equivalent plane wave
                        (V/m)             (A/m)               (uT)               power density
                                                                                   Seq (W/m2)
      0-1 Hz                      -         3,2 × 104        4 × 104                     -
      1-8 Hz                   10 000      3,2 × 104/f2    4 × 104/f2                    -
     8-25 Hz                   10 000        4 000/f         5 000/f                     -
  0,025-0,8 kHz                 250/f           4/f            5/f                       -
    0,8-3 kHz                   250/f            5            6,25                       -
    3-150 kHz                    87              5            6,25                       -
   0,15-1 MHz                    87           0,73/f         0,92/f                      -
    1-10 MHz                   87/f1/2        0,73/f         0,92/f                      -
   10-400 MHz                    28           0,073           0,092                     2
 400-2 000 MHz                1,375 f1/2   0,0037 f1/2     0,0046 f1/2                f/200
    2-300 GHz                    61            0,16           0,20                      10


Mobile device exposure for simultaneous transmission operations: the sum of the MPE ratios
for all simultaneously transmitting antennas incorporated in a host device is ≤ 1.0




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TEST REPORT

2.2 Assessment Results

Power density (S) is calculated according to the formula:
S = PG / (4πR² )
Where S = power density in mW/cm²
        P = Radiated transmit power in mW
        G = numeric gain of transmit antenna
        R = distance (cm)

As we can see from the test report 181200571SHA-001, 181200571SHA-002 and
181200571SHA-003:

The calculations in the table below use the highest gain of antenna for client EUT. These
calculations represent worst case in terms of the exposure levels.

The Bluetooth and WiFi can support simultaneous transmission.

                    Frequency        Max       Antenna
                                                                R            S           Limits
   Mode                band         Power       Gain
                      (MHz)          dBm         dBi          (cm)      (mW/cm2)      (mW/cm2)
Bluetooth          2400 -2483.5      8.17        2.3           20         0.0022         1
   WiFi            2400 -2483.5     17.01        2.3           20         0.0170         1
Note: 1 mW/cm2 from 1.310 Table 1

For the device can support simultaneous transmission, according to 447498 D01 General RF
Exposure Guidance v06,
For the device consider simultaneous transmission of WiFi and Bluetooth:
The worst MPE = 0.0022/1 + 0.0170/1 = 0.0192 mW/cm2 < 1 mW/cm2.




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                                                                  Report No.: 181200571SHA-004



TEST REPORT


Appendix I

Definition below must be outlined in the User Manual:

To satisfy FCC RF exposure requirements, a separation distance of 20 cm or more should be
maintained between the antenna of this device and persons during device operation.
To ensure compliance, operations at closer than this distance is not recommended.




 ******************************************* END ************************************




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Document Created: 2019-01-16 14:20:35
Document Modified: 2019-01-16 14:20:35

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