RF Exposure Info._20160628_v1 - Test Report-RF Exposure (MPE)

FCC ID: PPD-AR5B22

RF Exposure Info

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FCCID_3057723

FCC MPE Evaluation Report



                                    FCC MPE Evaluation Report
Report No.                               : SA160526C29

Applicant                                : Qualcomm Atheros, Inc.

Address                                  : 1700 Technology Drive, San Jose, CA95110

Product                                  : PCIE 802.11a/b/g/n 2.4GHz/5GHz+USB BT 4.0 card

FCC ID                                   : PPD-AR5B22

Brand                                    : Atheros

Model No.                                : AR5B22

Standards                                : FCC Part 2 (Section 2.1091)
                                            KDB 447498 D01
Sample Received Date                     : May 26, 2016

Date of Evaluation                       : Jun. 21, 2016


CERTIFICATION: The above equipment have been tested by Bureau Veritas Consumer Products Services (H.K.)
Ltd., Taoyuan Branch – Lin Kou Laboratories, 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 SAR characteristics under the conditions specified in this
report. It should not be reproduced except in full, without the written approval of our laboratory. The client should not
use it to claim product certification, approval, or endorsement by TAF or any government agencies.




 Prepared By :
                                     Evonne Liu / Specialist


 Approved By :
                                       Eli Hsu / Supervisor

 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.




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                                                                    Table of Contents
Release Control Record ............................................................................................................................................................... 3
1. Description of Equipment Under Test ................................................................................................................................. 4
2. MPE (Maximum Permissible Exposure) Assessment......................................................................................................... 5
    2.1   Introduction .................................................................................................................................................................. 5
    2.2   RF Radiation Exposure Limits ...................................................................................................................................... 5
    2.3   MPE Assessment Method ............................................................................................................................................ 6
    2.4   MPE Calculation for Standalone Operations ................................................................................................................ 6
3. Information on the Testing Laboratories ............................................................................................................................. 7




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                                          Release Control Record
    Report No.                                 Reason for Change                 Date Issued
    SA160526C29         Initial release                                          Jun. 24, 2016




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1. Description of Equipment Under Test
EUT Type                                  PCIE 802.11a/b/g/n 2.4GHz/5GHz+USB BT 4.0 card
FCC ID                                    PPD-AR5B22
Brand Name                                Atheros
Model Name                                AR5B22
Tx Frequency Bands                        WLAN : 2412 ~ 2462, 5180 ~ 5240, 5260 ~ 5320, 5500 ~ 5700, 5745 ~ 5825
(Unit: MHz)                               Bluetooth : 2402 ~ 2480
                                          802.11b : DSSS
Uplink Modulations                        802.11a/g/n : OFDM
                                          Bluetooth : GFSK, π/4-DQPSK, 8-DPSK
Antenna Type                              Refer to Note as below
EUT Stage                                 Identical Prototype
Note:
1. The EUT is authorized for use in specific End-product. Please refer to below table for more details.
                 Item                              Brand                                          Model
      Industrial Computer                           Dell                                          N02PC
2. The antenna information is listed as below.
                                                                                           Antenna Gain (dBi)
  Antenna Type          Brand Name                 Parts Number
                                                                                       2.4GHz             5GHz

                                         WLAN Main Antenna: PDV24515-DE1              Main: 2.9             Main: 4.0
        Dipole             Laird
                                         WLAN Aux Antenna: PDV24515-DE1                Aux: 2.9              Aux: 4.0

                          Taoglas                                                     Main: 2.82            Main: 4.11
                                        WLAN Main Antenna: MA761.B.BICG.014
    Monopole             Antenna
                                        WLAN Aux Antenna: MA761.B.BICG.014            Aux: 2.79             Aux: 4.51
                        Solution Ltd.

3. The above EUT information is declared by manufacturer and for more detailed features description please refers
    to the manufacturer's specifications or User's Manual.




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2. MPE (Maximum Permissible Exposure) Assessment
2.1 Introduction
According to 47 CFR §2.1091, a mobile device is defined as a transmitting device designed to be used in other than
fixed locations and to generally be used in such a way that a separation distance of at least 20 cm is normally
maintained between the transmitting antenna and the body of the user or nearby persons. In this context, the term
“fixed location” means that the device is physically secured at one location and is not able to be easily moved to
another location. Transmitting devices designed to be used by consumers or workers that can be easily re-located,
such as wireless devices associated with a personal computer, are considered to be mobile devices if they meet the
20 cm separation requirement. The limits to be used for MPE evaluation are specified in §1.1310. All unlicensed
personal communications service (PCS) devices and unlicensed NII devices shall be subject to the limits for general
population/uncontrolled exposure.


2.2 RF Radiation Exposure Limits
According to 47 CFR §1.1310, the criteria listed in below table shall be used to evaluate the environmental impact of
human exposure to RF radiation as specified in §1.1307(b), except in the case of portable devices which shall be
evaluated according to the provisions of §2.1093.

      Frequency               Electric Field        Magnetic Field          Power Density             Averaging Time
                                                                                     2
     Range (MHz)              Strength (V/m)        Strength (A/m)            (mW/cm )                     (min)
                                   (A) Limits for Occupational / Controlled Exposures
         0.3 – 3.0                 614                   1.63                    100                          6
         3.0 – 30
                                                                                        2
                                 1842/f                  4.89/f                 900/f                         6
         30 – 300                 61.4                   0.163                   1.0                          6
      300 – 1500                    -                      -                    f/300                         6
    1500 – 100000                   -                      -                      5                           6
                              (B) Limits for General Population / Uncontrolled Exposures
       0.3 – 1.34                  614                   1.63                    100                         30
       1.34 – 30
                                                                                        2
                                  824/f                  2.19/f                 180/f                        30
         30 – 300                 27.5                   0.073                   0.2                         30
      300 – 1500                    -                      -                    f/1500                       30
    1500 – 100000                   -                      -                     1.0                         30
                                 Limits for maximum permissible exposure (MPE)
Notes:
1. f = frequency in MHz
2. Occupational/controlled limits apply in situations in which persons are exposed as a consequence of their
   employment provided those persons are fully aware of the potential for exposure and can exercise control over
   their exposure. Limits for occupational/controlled exposure also apply in situations when an individual is transient
   through a location where occupational/controlled limits apply provided they are made aware of the potential for
   exposure.
3. General population/uncontrolled exposures apply in situations in which the general public may be exposed, or in
   which persons that are exposed as a consequence of their employment may not be fully aware of the potential
   for exposure or cannot exercise control over their exposure.

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2.3 MPE Assessment Method
Calculations can be made to predict RF field strength and power density levels around typical RF sources. For
example, in the case of a single radiating antenna, a prediction for power density in the far-field of the antenna can
be made by use of the general Equations below. This equation is generally accurate in the far-field of an antenna but
will over-predict power density in the near field, where they could be used for making a "worst case" or conservative
prediction.




Where
                                    2
S = Power Density, unit in mW/cm
P = Power input to the antenna, unit in mW
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, unit in cm
EIRP = Effective isotropically radiated power


2.4 MPE Calculation for Standalone Operations
The manufacturer expects that the radiated component of this device will not close to the human body during normal
usage and the warning statement was also stated in the user instruction. Since the transmitting antenna will be kept
at least 20 cm away from the human body, the MPE level is calculated based on this condition and the result is listed
in below table.

                        Max.        Peak            Max.            Max.        Calculated
                                                                                                  MPE
                   Time-averaged   Antenna      Time-averaged   Time-averaged     Power
     Band                                                                                         Limit           Result
                       Power        Gain            EIRP             ERP         Density
                                                                                                (mW/cm2)
                       (dBm)        (dBi)           (mW)             (W)        (mW/cm2)

  WLAN 2.4G             20          2.90           194.98           0.12          0.04            1.00            PASS
  WLAN 5.2G            16.5         4.51           126.18           0.08          0.03            1.00            PASS
  WLAN 5.3G            19.5         4.51           251.77           0.15          0.05            1.00            PASS
  WLAN 5.6G            18.0         4.51           178.24           0.11          0.04            1.00            PASS
  WLAN 5.8G            17.0         4.51           141.58           0.09          0.03            1.00            PASS
   Bluetooth           4.5          2.90            5.50           < 0.01        < 0.01           1.00            PASS

Summary:
Since the ERP (effective radiated power) operated at < 1.5 GHz is less than 1.5 watts and > 1.5 GHz is less than 3
watts, the routine environmental evaluation is not required, and the MPE result calculated for this device complies
with the MPE limit as specified in 47 CFR §1.1310.




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3. Information on the Testing Laboratories
We, Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch, were founded in 1988 to provide our
best service in EMC, Radio, Telecom and Safety consultation. Our laboratories are accredited and approved
according to ISO/IEC 17025.


If you have any comments, please feel free to contact us at the following:


Taiwan HwaYa EMC/RF/Safety Lab:
Add: No.19, Hwa Ya 2nd Rd., Wen Hwa Vil., Kwei Shan Dist., Taoyuan City 33383, Taiwan, R.O.C.
Tel: 886-3-318-3232
Fax: 886-3-327-0892


Taiwan LinKo EMC/RF Lab:
Add: No. 47-2, 14th Ling, Chia Pau Vil., Linkou Dist., New Taipei City 244, Taiwan, R.O.C.
Tel: 886-2-2605-2180
Fax: 886-2-2605-1924


Taiwan HsinChu EMC/RF/Telecom Lab:
                                th
Add: No. 81-1, Lu Liao Keng, 9 Ling, Wu Lung Vil., Chiung Lin Township, Hsinchu County 307, Taiwan, R.O.C.
Tel: 886-3-666-8565
Fax: 886-3-666-8323


Email: service.adt@tw.bureauveritas.com
Web Site: www.adt.com.tw


The road map of all our labs can be found in our web site also.


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Document Created: 2017-12-09 20:31:47
Document Modified: 2017-12-09 20:31:47

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