RF Exposure

FCC ID: R68FOX3-3G-BLE

RF Exposure Info

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FCCID_4477066

          RF Exposure Evaluation Report                                          Report No. : FA890508




                   RF Exposure Evaluation Report

                APPLICANT                : Lantronix, Inc.

                EQUIPMENT                : GNSS / GSM / UMTS / BLE - Device

                BRAND NAME               : Lantronix

                MODEL NAME               : FOX3-3G-BLE
                FCC ID                   : R68FOX3-3G-BLE

                STANDARD                 : 47 CFR Part 2.1091
                                           FCC KDB 447498 D01 v06


      We, Sporton International (ShenZhen) 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 (ShenZhen) Inc., the test report
      shall not be reproduced except in full.




       Reviewed by: Long Liang / Supervisor




       Approved by: Johnny Chen / Manager


                              Sporton International (ShenZhen) Inc.
   1/F, 2/F, Bldg 5, Shiling Industrial Zone, Xinwei Village, Xili, Nanshan, Shenzhen, 518055
                                        People’s Republic of China



Sporton International (Shenzhen) Inc.                                                 Page : 1 of 9
TEL : +86-755-86379589                                                         Issued Date : Sep. 30, 2019
FAX : +86-755-86379595                                                       Report Version : Rev. 01
FCC ID : R68FOX3-3G-BLE


            RF Exposure Evaluation Report                                                                                   Report No. : FA890508

                                                        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 .................................................................................................... 7
5. RADIO FREQUENCY RADIATION EXPOSURE EVALUATION ............................................................... 8
     5.1.     Standalone Power Density Calculation for WWAN module .............................................................. 8
     5.2.     Collocated Power Density Calculation ............................................................................................... 9




Sporton International (Shenzhen) Inc.                                                                                         Page : 2 of 9
TEL : +86-755-86379589                                                                                                 Issued Date : Sep. 30, 2019
FAX : +86-755-86379595                                                                                               Report Version : Rev. 01
FCC ID : R68FOX3-3G-BLE


          RF Exposure Evaluation Report                                        Report No. : FA890508
                                                  Revision History
   REPORT NO.           VERSION                              DESCRIPTION               ISSUED DATE

     FA890508            Rev. 01        Initial issue of report                         Sep. 30, 2019




Sporton International (Shenzhen) Inc.                                               Page : 3 of 9
TEL : +86-755-86379589                                                       Issued Date : Sep. 30, 2019
FAX : +86-755-86379595                                                     Report Version : Rev. 01
FCC ID : R68FOX3-3G-BLE


          RF Exposure Evaluation Report                                                        Report No. : FA890508
1. Administration Data

1.1. Testing Laboratory
Sporton International (Shenzhen) Inc. is accredited to ISO/IEC 17025:2017 by American Association for Laboratory

Accreditation with Certificate Number 5145.01.

                                                   Testing Laboratory

Test Firm                     Sporton International (Shenzhen) Inc.

                              1/F, 2/F, Bldg 5, Shiling Industrial Zone, Xinwei Village, Xili, Nanshan, Shenzhen, 518055

Test Site Location            People’s Republic of China

                              TEL: +86-755-86379589

                              FAX: +86-755-86379595

                                               FCC Designation No.                   FCC Test Firm Registration No.
Test Site No.
                                                     CN1256                                         421272



                                                        Applicant
Company Name                 Lantronix, Inc.
Address                      7535 Irvine Center Drive, Suite 100, Irvine, CA 92618 , USA


                                                      Manufacturer
Company Name                 Lantronix, Inc.
Address                      7535 Irvine Center Drive, Suite 100, Irvine, CA 92618 , USA




Sporton International (Shenzhen) Inc.                                                               Page : 4 of 9
TEL : +86-755-86379589                                                                       Issued Date : Sep. 30, 2019
FAX : +86-755-86379595                                                                     Report Version : Rev. 01
FCC ID : R68FOX3-3G-BLE


          RF Exposure Evaluation Report                                                     Report No. : FA890508
2. Description of Equipment Under Test (EUT)
                                          Product Feature & Specification
EUT Type                     GNSS / GSM / UMTS / BLE - Device
Brand Name                   Lantronix
Model Name                   FOX3-3G-BLE
FCC ID                  R68FOX3
Wireless Technology and GSM850: 824.2 MHz ~ 848.8 MHz
Frequency Range         GSM1900: 1850.2 MHz ~ 1909.8 MHz
                        WCDMA Band II: 1852.4 MHz ~ 1907.6 MHz
                        WCDMA Band V: 826.4 MHz ~ 846.6 MHz
                        Bluetooth: 2402MHz~2480MHz
Mode                    GPRS/EGPRS
                        RMC 12.2Kbps
                        HSDPA
                        HSUPA
                        Bluetooth LE
HW Version              P281_Rev03c
SW Version                   3.1.0
EUT Stage                  Identical Prototype
Remark:
1. The above EUT's information was declared by manufacturer. Please refer to the specifications or user's manual for
   more detailed description.
2. It supports GPRS/EGPRS class 12.




Sporton International (Shenzhen) Inc.                                                           Page : 5 of 9
TEL : +86-755-86379589                                                                   Issued Date : Sep. 30, 2019
FAX : +86-755-86379595                                                                 Report Version : Rev. 01
FCC ID : R68FOX3-3G-BLE


          RF Exposure Evaluation Report                                           Report No. : FA890508
3. Maximum RF average output power among production units


<GSM >

                                                                 Burst average power(dBm)
                            Mode
                                                        GSM 850                        GSM 1900
                  GPRS (GMSK, 1 Tx slot)                 33.50                           30.50
                 GPRS (GMSK, 2 Tx slots)                 33.50                           30.50
                 GPRS (GMSK, 3 Tx slots)                 32.50                           29.50
                 GPRS (GMSK, 4 Tx slots)                 31.50                           28.50
                  EDGE (8PSK, 1 Tx slot)                 27.50                           26.50
                  EDGE (8PSK, 2 Tx slots)                27.50                           26.50
                  EDGE (8PSK, 3 Tx slots)                27.00                           25.50
                  EDGE (8PSK, 4 Tx slots)                25.50                           24.50



<WCDMA>


                            Mode                           Maximum Average power(dBm)

                                        Band II                           23.50
          WCDMA
                                        Band V                            23.50


<Bluetooth >

                                                  Average Power (dBm)
       Band / Mode                                        LE
                                                        GFSK
         Bluetooth                                       -5.00




Sporton International (Shenzhen) Inc.                                               Page : 6 of 9
TEL : +86-755-86379589                                                       Issued Date : Sep. 30, 2019
FAX : +86-755-86379595                                                     Report Version : Rev. 01
FCC ID : R68FOX3-3G-BLE


          RF Exposure Evaluation Report                                                     Report No. : FA890508
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 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




Sporton International (Shenzhen) Inc.                                                            Page : 7 of 9
TEL : +86-755-86379589                                                                    Issued Date : Sep. 30, 2019
FAX : +86-755-86379595                                                                  Report Version : Rev. 01
FCC ID : R68FOX3-3G-BLE


          RF Exposure Evaluation Report                                                     Report No. : FA890508
5. Radio Frequency Radiation Exposure Evaluation

5.1. Standalone Power Density Calculation for WWAN module
                                        Antenna   Maximum   Maximum                   Power                     Power
         Band              Frequency     Gain      Power      EIRP      Average      Density at     Limit      Density /
                             (MHz)                                     EIRP (mW)       20cm       (mW/cm^2)
                                         (dBi)     (dBm)     (dBm)                  (mW/cm^2)                    Limit
  GPRS 850 (1 Tx slot)        824.2      2.00      33.50     35.500      446.684       0.089        0.549        0.162
 GPRS 850 (2 Tx slots)        824.2      2.00      33.50     35.500      891.251       0.177        0.549        0.323
 GPRS 850 (3 Tx slots)        824.2      2.00      32.50     34.500     1056.818       0.210        0.549        0.383
 GPRS 850 (4 Tx slots)        824.2      2.00      31.50     33.500     1122.018       0.223        0.549        0.406
 EGPRS 850 (1 Tx slot)        824.2      2.00      27.50     29.500      112.202       0.022        0.549        0.041
EGPRS 850 (2 Tx slots)        824.2      2.00      27.50     29.500      223.872       0.045        0.549        0.081
EGPRS 850 (3 Tx slots)        824.2      2.00      27.00     29.000      297.852       0.059        0.549        0.108
EGPRS 850 (4 Tx slots)        824.2      2.00      25.50     27.500      281.838       0.056        0.549        0.102
 GPRS 1900 (1 Tx slot)       1850.2      2.00      30.50     32.500      223.872       0.045        1.000        0.045
GPRS 1900 (2 Tx slots)       1850.2      2.00      30.50     32.500      446.684       0.089        1.000        0.089
GPRS 1900 (3 Tx slots)       1850.2      2.00      29.50     31.500      529.663       0.105        1.000        0.105
GPRS 1900 (4 Tx slots)       1850.2      2.00      28.50     30.500      562.341       0.112        1.000        0.112
EGPRS 1900 (1 Tx slot)       1850.2      2.00      26.50     28.500      89.125        0.018        1.000        0.018
EGPRS 1900 (2 Tx slots)      1850.2      2.00      26.50     28.500      177.828       0.035        1.000        0.035
EGPRS 1900 (3 Tx slots)      1850.2      2.00      25.50     27.500      210.863       0.042        1.000        0.042
EGPRS 1900 (4 Tx slots)      1850.2      2.00      24.50     26.500      223.872       0.045        1.000        0.045
   WCDMA Band II             1852.4      2.00      23.50     25.500      354.813       0.071        1.000        0.071
   WCDMA Band V               826.4      2.00      23.50     25.500      354.813       0.071        0.551        0.128
     Bluetooth LE             2402       2.00      -5.00     -3.000       0.501       0.0001        1.000       0.0001
Note:
1. For conservativeness, the lowest frequency of each band is used to determine the MPE limit of that band
2. Chose the maximum power density to do MPE analysis.




Sporton International (Shenzhen) Inc.                                                           Page : 8 of 9
TEL : +86-755-86379589                                                                   Issued Date : Sep. 30, 2019
FAX : +86-755-86379595                                                                 Report Version : Rev. 01
FCC ID : R68FOX3-3G-BLE


          RF Exposure Evaluation Report                                                    Report No. : FA890508
5.2. Collocated Power Density Calculation

                                                                                  Σ(Power Density / Limit)
             WWAN                              Bluetooth
       Power Density / Limit               Power Density / Limit                            of
                                                                                     WWAN+Bluetooth
                0.406                             0.0001                                  0.4061

Note:
1. Σ(Power Density / Limit): This is a summation of [(power density for each transmitter/antenna included in the
    simultaneous transmission)/ (corresponding MPE limit)], for WWAN + Bluetooth.
2. Considering the WWAN module collocation with the Bluetooth transmitter of the EIRP performance listed in the table
    above, the aggregated (power density /limit) is smaller than 1.


Conclusion:

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




Sporton International (Shenzhen) Inc.                                                          Page : 9 of 9
TEL : +86-755-86379589                                                                  Issued Date : Sep. 30, 2019
FAX : +86-755-86379595                                                                Report Version : Rev. 01
FCC ID : R68FOX3-3G-BLE



Document Created: 2019-10-14 14:43:06
Document Modified: 2019-10-14 14:43:06

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