RF-Exposure-Info-MPE

FCC ID: KA2AP2620A1

RF Exposure Info

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FCCID_4221676

                                                           RF Exposure Report

                       Report No.: SA181009E01A

                            FCC ID: KA2AP2620A1

                       Test Model: DAP-2620

                 Received Date: Oct. 09, 2018

                         Test Date: Nov. 14, 2018

                     Issued Date: Mar. 27, 2019


                         Applicant: D-Link Corporation

                          Address: 17595 Mt. Herrmann Street Fountain Valley, CA92708 USA


                        Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch
                                   Hsin Chu Laboratory
                    Lab Address: E-2, No.1, Li Hsin 1st Road, Hsinchu Science Park, Hsinchu City 300,
                                 Taiwan R.O.C.
            Test Location: E-2, No.1, Li Hsin 1st Road, Hsinchu Science Park, Hsinchu City 300,
                           Taiwan R.O.C.
       FCC Registration /
                           723255 / TW2022
      Designation Number:




This report is for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted
only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this
report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product
unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you
provided to us. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence, provided,
however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time
shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Unless specific
mention, the uncertainty of measurement has been explicitly taken into account to declare the compliance or non-compliance to the specification. The report
must not be used by the client to claim product certification, approval, or endorsement by any government agencies.

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Reference No.: 181009E02


                                                                   Table of Contents
Release Control Record .................................................................................................................................. 3
1         Certificate of Conformity...................................................................................................................... 4
2         RF Exposure .......................................................................................................................................... 5
    2.1      Limits for Maximum Permissible Exposure (MPE) .............................................................................. 5
    2.2      MPE Calculation Formula ................................................................................................................... 5
    2.3      Classification ....................................................................................................................................... 5
    2.4      Antenna Gain ...................................................................................................................................... 5
    2.5      Calculation Result of Maximum Conducted Power ............................................................................. 6




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                                          Release Control Record


Issue No.             Description                                         Date Issued
SA181009E01A          Original release.                                   Mar. 27, 2019




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Reference No.: 181009E02


1    Certificate of Conformity


            Product: Wireless AC1200 Wave 2 Dual-Band wall-plate PoE AP

              Brand: D-Link

        Test Model: DAP-2620

    Sample Status: ENGINEERING SAMPLE

          Applicant: D-Link Corporation

          Test Date: Nov. 14, 2018

         Standards: FCC Part 2 (Section 2.1091)

                           KDB 447498 D01 General RF Exposure Guidance v06
                           IEEE C95.1-1992



The above equipment has been tested by Bureau Veritas Consumer Products Services (H.K.) Ltd.,
Taoyuan Branch, and found compliance with the requirement of the above standards. The test record, data
evaluation & Equipment Under Test (EUT) configurations represented herein are true and accurate accounts
of the measurements of the sample’s EMC characteristics under the conditions specified in this report.




      Prepared by :                                              , Date:        Mar. 27, 2019
                                Phoenix Huang / Specialist




     Approved by :                                               , Date:        Mar. 27, 2019
                                  May Chen / Manager




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Reference No.: 181009E02


2         RF Exposure

2.1        Limits for Maximum Permissible Exposure (MPE)

    Frequency Range          Electric Field      Magnetic Field          Power Density         Average Time
         (MHz)              Strength (V/m)       Strength (A/m)            (mW/cm2)              (minutes)
                             Limits For General Population / Uncontrolled Exposure
           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
          300-1500                …                     …                    f/1500                   30
      1500-100,000                …                     …                     1.0                     30

f = Frequency in MHz ; *Plane-wave equivalent power density



2.2        MPE 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



2.3        Classification

The antenna of this product, under normal use condition, is at least 24cm away from the body of the user. So,
this device is classified as Mobile Device.



2.4        Antenna Gain


              Transmitter   Antenna Gain      Frequency rang                                          Cable Length
Ant No.                                                            Antenna type     Connector type
                 Circuit        (dBi)              (GHz)                                                 (mm)
                                  3             2.4~2.4835            PCB             i-pex(MHF)
      1         Chain (1)                                                                                    55
                                 4.5             5.15~5.85            PCB             i-pex(MHF)
                                 2.8            2.4~2.4835            PCB             i-pex(MHF)
      2         Chain (0)                                                                                    35
                                 4.1             5.15~5.85            PCB             i-pex(MHF)




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2.5    Calculation Result of Maximum Conducted Power


For 2.4GHz and 5GHz (U-NII-3 band) data was copied from the original test report (Report No.:
SA181009E01)


                   Evaluation
  Operation                        Max Power       Antenna Gain       Distance      Power Density       Limit
                   Frequency
   Mode                              (mW)              (dBi)            (cm)          (mW/cm2)        (mW/cm2)
                     (MHz)
WLAN 2.4GHz           2437           764.733            5.91              24          0.41198               1

WLAN U-NII-1          5200           425.632            7.31              24          0.31652               1
 WLAN 5GHz
                    5270           244.474            7.31                 24         0.18180               1
   U-NII-2A
 WLAN 5GHz
                    5550           229.306            7.31                 24         0.17052               1
   U-NII-2C
 WLAN 5GHz
                    5745           690.333            7.31                 24         0.51336               1
   U-NII-3
Note:
2.4GHz: The directional gain = 10 log[(10Chain0/20 + 10Chain1/20)2 / 2] = 5.91dBi
5GHz: The directional gain = 10 log[(10Chain0/20 + 10Chain1/20)2 / 2] = 7.31dBi




Conclusion:
The formula of calculated the MPE is:
CPD1 / LPD1 + CPD2 / LPD2 + ……etc. < 1
CPD = Calculation power density
LPD = Limit of power density

WLAN 2.4GHz + WLAN 5GHz = 0.41198 / 1 + 0.51336 / 1 = 0.92534
Therefore the maximum calculations of above situations are less than the “1” limit.



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Report No.: SA181009E01A                         Page No. 6 / 6                           Report Format Version: 6.1.1
Reference No.: 181009E02



Document Created: 2019-04-12 03:56:19
Document Modified: 2019-04-12 03:56:19

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