RF Exposure Info MPE

FCC ID: KA2AP2680A1

RF Exposure Info

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FCCID_3793109

                                                            RF Exposure Report

                       Report No.: SA171024E05B

                            FCC ID: KA2AP2680A1

                       Test Model: DAP-2680

                 Received Date: Oct. 24, 2017

                         Test Date: Nov. 13 to 14, 2017

                     Issued Date: Jan. 25, 2018


                         Applicant: D-Link Corporation

                          Address: No.289, Xinhu 3rd Rd., Neihu District, Tapei City 11494, Taiwan



                        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.




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.

Report No.: SA171024E05B                                             Page No. 1 / 6                                             Report Format Version: 6.1.1
Reference No.: 171102E03


                                                                   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 ...................................................................................................................................... 6
    2.5      Calculation Result ............................................................................................................................... 6




Report No.: SA171024E05B                                             Page No. 2 / 6                                              Report Format Version: 6.1.1
Reference No.: 171102E03


                                          Release Control Record


Issue No.             Description                                         Date Issued
SA171024E05B          Original release.                                   Jan. 25, 2018




Report No.: SA171024E05B                     Page No. 3 / 6        Report Format Version: 6.1.1
Reference No.: 171102E03


1    Certificate of Conformity


            Product: Wireless AC1750 Wave 2 Dual-Band PoE Access Point

              Brand: D-Link

        Test Model: DAP-2680

    Sample Status: ENGINEERING SAMPLE

          Applicant: D-Link Corporation

          Test Date: Nov. 13 to 14, 2017

         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:      Jan. 25, 2018
                                  Wendy Wu / Specialist




     Approved by :                                               ,   Date:      Jan. 25, 2018
                                  May Chen / Manager




Report No.: SA171024E05B                        Page No. 4 / 6                       Report Format Version: 6.1.1
Reference No.: 171102E03


2      RF Exposure

2.1      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)
                               Limits For General Population / Uncontrolled Exposure
        0.3-1.34                   614                  1.63               (100)*                30
                                                                                  2
         1.34-30                  824/f                2.19/f             (180/f )*              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

                          2
Pd = (Pout*G) / (4*pi*r )
where
                                   2
Pd = power density in mW/cm
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 32cm away from the body of the user.
         So, this device is classified as Mobile Device.




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2.4     Antenna Gain

                               Antenna Gain   Frequency range                                         Cable Length
Antenna No.        Model                                           Antenna Type     Connecter Type
                                   (dBi)          (GHz )                                                 (mm)
                                     3.6        2.4~2.4835
        1         NYS3072                                               PIFA          i-pex (MHF)           60
                                     4.2         5.15~5.85
                                     3.6        2.4~2.4835
        2         NYS3073                                               PIFA          i-pex (MHF)           70
                                     4.2         5.15~5.85
                                     3.5        2.4~2.4835
        3         NYS3074                                               PIFA          i-pex (MHF)          160
                                     4           5.15~5.85



2.5     Calculation Result

For 2.4GHz, 5GHz (U-NII-1 & UNII-3 band) data was copied from the original test report (Report No.:
SA171024E05)
   Frequency       Max Power        Antenna Gain       Distance         Power Density           Limit
                                                                                   2                  2
      (MHz)          (mW)               (dBi)             (cm)            (mW/cm )           (mW/cm )
      2412-2462            779.921            8.34                 32               0.41356                1

      5180-5240             676.99            8.91                 32               0.40933                1

      5260-5320            246.757            8.91                 32               0.14920                1

      5500-5700            246.496            8.91                 32               0.14904                1

      5745-5825            341.892            8.91                 32               0.20672                1

NOTE:
                                      G1/20     G2/20      G3/20 2
2.4GHz: Directional gain = 10 log[(10       + 10      + 10       ) / 3] = 8.34dBi
                                    G1/20     G2/20      G3/20 2
5GHz: Directional gain = 10 log[(10       + 10      + 10      ) / 3] = 8.91dBi

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 = 0.41356 / 1 + 0.40933 / 1 = 0.82289

Therefore the maximum calculations of above situations are less than the “1” limit.



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Report No.: SA171024E05B                         Page No. 6 / 6                            Report Format Version: 6.1.1
Reference No.: 171102E03



Document Created: 2018-01-25 16:35:22
Document Modified: 2018-01-25 16:35:22

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