RF Exposure

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RF Exposure Info

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         RF Exposure Evaluation Report                                           Report No. : FA962620




                  RF Exposure Evaluation Report

                        APPLICANT       : Lenovo (Shanghai) Electronics
                                          Technology Co., Ltd.

                        EQUIPMENT       : Lenovo smart Display

                        BRAND NAME      : Lenovo

                        MODEL NAME      : Lenovo CD-17302F

                        FCC ID          : O57CD17302F
                        STANDARD        : 47 CFR Part 2.1091
                                            FCC KDB 447498 D01 v06


      We, Sporton International (Kunshan) Inc., would like to declare that the device has been
      evaluated in accordance with 47 CFR Part 2.1091 and FCC KDB 447498 D01 v06, and pass
      the limit. Without written approval of Sporton International (Kunshan) Inc., the test report
      shall not be reproduced except in full.




       Reviewed by: Rose Wang / Supervisor




           Approved by: Kat Yin / Manager


                            Sporton International (Kunshan) Inc.
No. 1098, Pengxi North Road, Kunshan Economic Development Zone Jiangsu Province 215300
                                People’s Republic of China




TEL : 86-512-57900158                                                  Page Number        : 1 of 9
FAX : 86-512-57900958                                                  Report Issued Date : Sep. 05, 2019
FCC ID : O57CD17302F                                                   Report Version     : Rev. 01


            RF Exposure Evaluation Report                                                                                   Report No. : FA962620

                                                        Table of Contents
1. ADMINISTRATION DATA ........................................................................................................................... 4
     1.1.     Testing Laboratory ............................................................................................................................. 4
2. DESCRIPTION OF EQUIPMENT UNDER TEST (EUT) ............................................................................. 5
3. MAXIMUM RF AVERAGE OUTPUT POWER AMONG PRODUCTION UNITS ........................................ 6
4. RF EXPOSURE LIMIT INTRODUCTION .................................................................................................... 8
5. RADIO FREQUENCY RADIATION EXPOSURE EVALUATION ............................................................... 9
     5.1.     Standalone Power Density Calculation ............................................................................................. 9




TEL : 86-512-57900158                                                                                         Page Number        : 2 of 9
FAX : 86-512-57900958                                                                                         Report Issued Date : Sep. 05, 2019
FCC ID : O57CD17302F                                                                                          Report Version     : Rev. 01


         RF Exposure Evaluation Report                                         Report No. : FA962620
                                            Revision History
   REPORT NO.           VERSION                        DESCRIPTION                    ISSUED DATE

     FA962620           Rev. 01   Initial issue of report                              Sep. 05, 2019




TEL : 86-512-57900158                                                Page Number        : 3 of 9
FAX : 86-512-57900958                                                Report Issued Date : Sep. 05, 2019
FCC ID : O57CD17302F                                                 Report Version     : Rev. 01


         RF Exposure Evaluation Report                                                    Report No. : FA962620
1. Administration Data

1.1. Testing Laboratory
Sporton International (Kunshan) Inc. is accredited to ISO/IEC 17025:2017 by American Association for
Laboratory Accreditation with Certificate Number 5145.02.
                                             Testing Laboratory
 Test Firm               Sporton International (Kunshan) Inc.
                         No. 1098, Pengxi North Road, Kunshan Economic Development Zone
                         Jiangsu Province 215300 People’s Republic of China
 Test Site Location
                         TEL : +86-512-57900158
                         FAX : +86-512-57900958
                                   FCC Designation No.                       FCC Test Firm Registration No.
 Test Site No.
                                          CN1257                                          314309



                                                  Applicant
Company Name             Lenovo(Shanghai) Electronics Technology Co., Ltd.
                         Section 304-305, Building No. 4, # 222, Meiyue Road,    China (Shanghai) Pilot Free Trade
Address
                         Zone


                                                Manufacturer
Company Name             Lenovo PC HK Limited
Address                  23/F, Lincoln House, Taikoo Place 979 King's Road, Quarry Bay, Hong Kong P.R. China




TEL : 86-512-57900158                                                           Page Number        : 4 of 9
FAX : 86-512-57900958                                                           Report Issued Date : Sep. 05, 2019
FCC ID : O57CD17302F                                                            Report Version     : Rev. 01


           RF Exposure Evaluation Report                                                           Report No. : FA962620
 2. Description of Equipment Under Test (EUT)
                                              Product Feature & Specification
 EUT Type                      Smart Display 7
 Brand Name                    Lenovo
 Model Name                    Lenovo smart Display
 FCC ID                  O57CD17302F
                         WLAN 2.4GHz Band: 2412 MHz ~ 2462 MHz
                         WLAN 5.2GHz Band: 5150 MHz ~ 5250 MHz
 Wireless Technology and WLAN 5.3GHz Band: 5250 MHz ~ 5350 MHz
 Frequency Range         WLAN 5.5GHz Band: 5470 MHz ~ 5725 MHz
                         WLAN 5.8GHz Band: 5725 MHz ~ 5850 MHz
                         Bluetooth: 2402 MHz ~ 2480 MHz
                         WLAN 2.4GHz 802.11b/g/n HT20
                         WLAN 5GHz 802.11a/n HT20
 Mode
                         WLAN 5GHz 802.11ac VHT20/VHT40/VHT80
                         Bluetooth BR/EDR/LE
 HW Version              Lenovo CD-17302F_V01
 SW Version                    15.42.0+mt8167s_xl_prod.1.1.0.5800915
                               Bluetooth: PIFA Antenna / -1.52 dBi
 Antenna Type / Gain
                               WLAN: PIFA Antenna / -1.50 dBi
                               PIFA Antenna
                               5150 MHz ~ 5250 MHz: -1.81 dBi
 Antenna Type / Gain           5250 MHz ~ 5350 MHz: -1.90 dBi
                               5470 MHz ~ 5725 MHz: -1.62 dBi
                               5725 MHz ~ 5850 MHz: -1.74 dBi
 EUT Stage                     Production Unit
 Remark: The above EUT's information was declared by manufacturer. Please refer to the specifications or user's manual
 for more detailed description.


Comments and Explanations:
The declared of product specification for EUT presented in the report are provided by the manufacturer, and the

manufacturer takes all the responsibilities for the accuracy of product specification.




 TEL : 86-512-57900158                                                                   Page Number        : 5 of 9
 FAX : 86-512-57900958                                                                   Report Issued Date : Sep. 05, 2019
 FCC ID : O57CD17302F                                                                    Report Version     : Rev. 01


         RF Exposure Evaluation Report                            Report No. : FA962620
3. Maximum RF average output power among production units

<Bluetooth>

                                Mode                 Maximum Average Power (dBm)
                          Bluetooth BR/EDR                      11.0
                             Bluetooth LE                        7.0



<WLAN 2.4GHz>


                        Mode                 Maximum Average Power (dBm)

                    802.11b                             21.5
                    802.11g                             18.5
                 802.11n-HT20                           17.0




TEL : 86-512-57900158                                   Page Number        : 6 of 9
FAX : 86-512-57900958                                   Report Issued Date : Sep. 05, 2019
FCC ID : O57CD17302F                                    Report Version     : Rev. 01


         RF Exposure Evaluation Report                         Report No. : FA962620
<WLAN 5GHz Mode>


                        Mode                Maximum Average Power (dBm)

                               802.11a                  20.5
                            802.11n-HT20                18.5
   WLAN 5.2GHz             802.11ac-VHT20               18.5
                           802.11ac-VHT40               18.5
                           802.11ac-VHT80               16.5
                               802.11a                  20.5
                            802.11n-HT20                18.5
   WLAN 5.3GHz             802.11ac-VHT20               18.5
                           802.11ac-VHT40               18.5
                           802.11ac-VHT80               16.5
                               802.11a                  20.5
                            802.11n-HT20                18.5
   WLAN 5.5GHz             802.11ac-VHT20               18.5
                           802.11ac-VHT40               18.5
                           802.11ac-VHT80               16.5
                               802.11a                  20.5
                            802.11n-HT20                18.5
   WLAN 5.8GHz             802.11ac-VHT20               18.5
                           802.11ac-VHT40               18.0
                           802.11ac-VHT80               16.0




TEL : 86-512-57900158                               Page Number        : 7 of 9
FAX : 86-512-57900958                               Report Issued Date : Sep. 05, 2019
FCC ID : O57CD17302F                                Report Version     : Rev. 01


         RF Exposure Evaluation Report                                                      Report No. : FA962620
4. RF Exposure Limit Introduction
According to ANSI/IEEE C95.1-1992, the criteria listed in Table 1 shall be used to evaluate the environmental impact of

human exposure to radio frequency (RF) radiation as specified in §1.1310.




    The MPE was calculated at 20.0 cm to show compliance with the power density limit.
    The following formula was used to calculate the Power Density:


                                                           𝐏𝐆
                                                    𝐒=
                                                          𝟒𝛑𝐑𝟐
    Where:
    S = Power Density
    P = Output Power at Antenna Terminals
    G = Gain of Transmit Antenna (linear gain)
    R = Distance from Transmitting Antenna




TEL : 86-512-57900158                                                             Page Number        : 8 of 9
FAX : 86-512-57900958                                                             Report Issued Date : Sep. 05, 2019
FCC ID : O57CD17302F                                                              Report Version     : Rev. 01


           RF Exposure Evaluation Report                                                   Report No. : FA962620
5. Radio Frequency Radiation Exposure Evaluation

5.1. Standalone Power Density Calculation

                                                                                            Power
                                Antenna   Maximum     Maximum     Maximum      Average
                   Frequency                                                               Density at       Limit
       Band                      Gain      Power        EIRP       EIRP         EIRP
                     (MHz)                                                                   20cm        (mW/mW^2)
                                 (dBi)     (dBm)       (dBm)        (W)         (mW)
                                                                                          (mW/mW^2)
WLAN 5.2GHz          5180.0      -1.81      20.50       18.69       0.074       73.961       0.015           1.000
WLAN 5.3GHz          5260.0      -1.90      20.50       18.60       0.072       72.444       0.014           1.000
WLAN 5.5GHz          5500.0      -1.62      20.50       18.88       0.077       77.268       0.015           1.000
WLAN 5.8GHz          5745.0      -1.74      20.50       18.76       0.075       75.162       0.015           1.000
WLAN 2.4GHz          2412.0      -1.50      21.50       20.00       0.100      100.000       0.020           1.000
     Bluetooth       2402.0      -1.52      11.00       9.480       0.009       8.872        0.002           1.000
Note:
1.    For conservativeness, the lowest uplink frequency of each band is used to determine the MPE limit of that band.
2.    In the above table have assessed WLAN 2.4GHz and WLAN 5GHz by referring to their maximum direction gain and
      maximum output power.
3.    EUT will choose either WLAN 2.4GHz or WLAN 5GHz according to the network signal condition; therefore, 2.4GHz
      WLAN and 5GHz WLAN will not operate simultaneously at any moment.
4.    For conservativeness, the lowest frequency of each band is used to determine the MPE limit of that band
5.    WLAN5GHz and WLAN2.4GHz can’t transmit simultaneously with Bluetooth.




Conclusion:

According to 47 CFR §2.1091, the RF exposure analysis concludes that the RF Exposure is FCC compliant.




TEL : 86-512-57900158                                                            Page Number        : 9 of 9
FAX : 86-512-57900958                                                            Report Issued Date : Sep. 05, 2019
FCC ID : O57CD17302F                                                             Report Version     : Rev. 01



Document Created: 2019-09-09 16:28:45
Document Modified: 2019-09-09 16:28:45

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