1905TW0114-U5-FCC RF Exposure Report_Rev01

FCC ID: TE7AX50

RF Exposure Info

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FCCID_4307437

                                      MRT Technology (Taiwan) Co., Ltd         Report No.: 1905TW0114-U5
                                      Phone: +886-3-3288388                    Report Version:        V01
                                      Web: www.mrt-cert.com                    Issue Date:     05-25-2019




            RF Exposure Evaluation Declaration

FCC ID:                         TE7AX50

APPLICANT:                      TP-Link Technologies Co., Ltd.


Application Type:               Certification

Product:                        AX3000 Gigabit Wi-Fi Router

Model No.:                      Archer AX50, Archer AX3000

Trademark:                     tp-link

FCC Classification: Digital Transmission System (DTS)
                               Unlicensed National Information Infrastructure (NII)
Test Procedure(s):              KDB 447498 D01v06

Test Date:                      May 24, 2019



Reviewed By:
                                 ( Paddy Chen )
Approved By:
                                   (Chenz Ker)




The test results relate only to the samples tested.
The test results shown in the test report are traceable to the national/international standards through the
calibration of the equipment and evaluated measurement uncertainty herein.
The test report shall not be reproduced except in full without the written approval of MRT Technology (Taiwan)
Co., Ltd.
 FCC ID: TE7AX50                                                                           Page Number: 1 of 7


                                                    Report No.: 1905TW0114-U5


                            Revision History

   Report No.     Version     Description       Issue Date           Note

 1905TW0114-U5    Rev. 01      Initial report   05-25-2019           Valid




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                                                                           Report No.: 1905TW0114-U5



1.      PRODUCT INFORMATION
1.1. Equipment Description
Product Name                   AX3000 Gigabit Wi-Fi 6 Router
Model No.                      Archer AX50, Archer AX3000
Brand Name:                    tp-link
Wi-Fi Specification:           802.11a/b/g/n/ac/ax
Note: These models are different in the USB interface, Archer AX50 supports USB 3.0, Archer
AX3000 supports USB2.0. Others are the same. So Archer AX50 is chosen for the tests.



1.2. Description of Available Antennas
   Antenna Type            Frequency       TX     Max Antenna Gain (dBi)      Directional Gain (dBi)
                           Band (MHz)     Paths      Ant 0       Ant 1       For Power      For PSD
                       2400 ~ 2500         2         2.00         2.00          2.00         5.01
  Dipole Antenna
                       5150 ~ 5850         2         3.00         3.00          3.00         6.01
Note:
1. 802.11b support single transmission at Ant 0 port only.
2. The EUT supports Cyclic Delay Diversity (CDD) mode, and CDD signals are correlated.
     For CDD transmissions, directional gain is calculated as follows, NANT = 2, NSS = 1.
     If all antennas have the same gain, GANT, Directional gain = GANT + Array Gain, where Array
     Gain is as follows.
     • For power spectral density (PSD) measurements on all devices,
        Array Gain = 10 log (NANT/ NSS) dB = 3.01;
     • For power measurements on IEEE 802.11 devices,
        Array Gain = 0 dB for NANT ≤ 4;




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                                                           Report No.: 1905TW0114-U5



1.3. Description of Antenna RF Port
                                 Antenna RF Port
    Software            2.4GHz RF Port                     5GHz RF Port
  Control Port      Ant 0             Ant 1        Ant 0                  Ant 1




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                                                                             Report No.: 1905TW0114-U5



 2.     RF Exposure Evaluation
 2.1. Limits
According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the
environment impact of human exposure to radio frequency (RF) radiation as specified in 1.1307(b)


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)
                           (A) Limits for Occupational/ Control Exposures
300-1500                     --                   --                 f/300                  6
1500-100,000                 --                   --                  5                     6
                     (B) Limits for General Population/ Uncontrolled Exposures
300-1500                     --                   --                f/1500                  6
1500-100,000                 --                   --                  1                     30
f= Frequency in MHz


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


Pd is the limit of MPE, 1mW/cm². If we know the maximum gain of the antenna and the total power
input to the antenna, through the calculation, we will know the distance r where the MPE limit is
reached.




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                                                                         Report No.: 1905TW0114-U5



2.2. Test Result of RF Exposure Evaluation
Product              AX3000 Gigabit Wi-Fi 6 Router
Test Item            RF Exposure Evaluation


Antenna Gain: Refer to clause 1.2.
    Test Mode       Frequency Band      Max Conducted       Antenna Gain          Maximum EIRP
                         (MHz)              Power                (dBi)                (dBm)
                                            (dBm)
  802.11b/g/n/ax      2412 ~ 2462             29.79              2.00                 31.79
                     5180 ~ 5320,
 802.11 a/n/ac/ax    5500 ~ 5720,             29.71              3.00                 32.71
                      5745 ~ 5825


    Test Mode       Frequency Band      Maximum EIRP       Power Density at            Limit
                         (MHz)              (dBm)             R = 20 cm             (mW/cm2)
                                                              (mW/cm2)
  802.11b/g/n/ax      2412 ~ 2462             31.79             0.3004                  1
                     5180 ~ 5320,
 802.11 a/n/ac/ax    5500 ~ 5720,             32.71             0.3713                  1
                      5745 ~ 5825


CONCLUSION:
Both of the WLAN 2.4GHz Band and WLAN 5GHz Band can transmit simultaneously.
The max Power Density at R (20 cm) = 0.3004mW/cm2 + 0.3713mW/cm2 = 0.6717mW/cm2 <
1mW/cm2.
So the safety distance is 20cm for AX3000 Gigabit Wi-Fi 6 Router installed without any other
radio equipment.




                                            The End


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                                 Report No.: 1905TW0114-U5



Appendix A - EUT Photograph
Refer to “1905TW0114-UE” file.




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Document Created: 2019-06-04 19:50:24
Document Modified: 2019-06-04 19:50:24

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