RF Exposure Info (MPE) rev

FCC ID: P27-SOR4105T

RF Exposure Info

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FCCID_4138151

                                                           RF Exposure Report

                       Report No.: SA180919D02

                            FCC ID: P27-SOR4105T

                       Test Model: SOR4105T

                 Received Date: Sep. 19, 2018

                         Test Date: Oct. 5 ~ Nov. 27, 2018

                     Issued Date: Dec. 12, 2018


                         Applicant: Sercomm Corp.

                          Address: 8F, No. 3-1, YuanQu St., NanKang, Taipei 115, Taiwan, R.O.C. (NanKang
                                   Software Park)

                        Issued By: Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch

             Lab Address: No. 47-2, 14th Ling, Chia Pau Vil., Lin Kou Dist., New Taipei City, Taiwan
                           (R.O.C.)
       FCC Registration /
      Designation Number: 198487 / TW2021




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 TAF or any government agencies.
Report No.: SA180919D02                                              Page No. 1 / 7                                             Report Format Version: 6.1.1


                                                                   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      Calculation Result Of Maximum Conducted Power ............................................................................ 6




Report No.: SA180919D02                                              Page No. 2 / 7                                              Report Format Version: 6.1.1


                                          Release Control Record


Issue No.             Description                                         Date Issued
SA180919D02           Original release.                                   Dec. 12, 2018




Report No.: SA180919D02                      Page No. 3 / 7        Report Format Version: 6.1.1


1    Certificate of Conformity


            Product: Harman Magic Box

              Brand: Sprint & Harman Kardon

        Test Model: SOR4105T

    Sample Status: Engineering sample

          Applicant: Sercomm Corp.

          Test Date: Oct. 5 ~ Nov. 27, 2018

         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 RF characteristics under the conditions specified in this report.




     Prepared by :                                                      , Date:         Dec. 12, 2018
                                 Annie Chang / Senior Specialist




     Approved by :                                                      , Date:         Dec. 12, 2018
                             Rex Lai / Associate Technical Manager




Report No.: SA180919D02                        Page No. 4 / 7                         Report Format Version: 6.1.1


2      RF Exposure

2.1      Limits For Maximum Permissible Exposure (MPE)

    Frequency Range          Electric Field     Magnetic Field       Power Density        Average Time
         (MHz)              Strength (V/m)      Strength (A/m)         (mW/cm2)             (minutes)
                             Limits For General Population / Uncontrolled Exposure
        300-1500                  …                     …                F/1500                  30
      1500-100,000                …                     …                 1.0                    30

F = Frequency in MHz



2.2      MPE 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



2.3      Classification

      The antenna of this product, under normal use condition, is at least 20cm away from the body of the user.
      So, this device is classified as Mobile Device.




Report No.: SA180919D02                          Page No. 5 / 7                         Report Format Version: 6.1.1


2.4     Calculation Result Of Maximum Conducted Power

Sercomm module (WiFi):
                    Max Power         Antenna Gain            Distance          Power Density        Limit
    Function
                       (dBm)                (dBi)               (cm)              (mW/cm2)         (mW/cm2)
     WLAN
                       26.06                6.22                  20               0.3363              1
(2412-2462MHz)
     WLAN
                       25.28                6.37                  20               0.2909              1
(5180-5240MHz)
     WLAN
                       25.67                6.35                  20               0.3168              1
(5745-5825MHz)
NOTE:
2.4GHz Directional gain = 10 log[(10G1/20 + 10G2/20 + ... + 10GN/20)2 / 2] = 6.22dBi
5.0GHz Directional gain = 10 log[(10G1/20 + 10G2/20 + ... + 10GN/20)2 / 2] = 6.37dBi (For 5180-5240MHz)
5.0GHz Directional gain = 10 log[(10G1/20 + 10G2/20 + ... + 10GN/20)2 / 2] = 6.35dBi (For 5745-5825MHz)
The Max Power = Max tune up power

Samsung module (FCC ID: A3LSIP005AFS30) (WiFi + BT + Zigbee):
                  Max Power     Antenna Gain       Distance                    Power Density               Limit
    Function
                    (dBm)           (dBi)            (cm)                        (mW/cm2)                (mW/cm2)
     WLAN
                    15.00            3.8              20                              0.0151                   1
(2412-2462MHz)
     WLAN
                    13.50            5.5              20                              0.0158                   1
(5180-5240MHz)
     WLAN
                    13.50            5.5              20                              0.0158                   1
(5250-5350MHz)
     WLAN
                    13.50            5.5              20                              0.0158                   1
(5470-5725MHz)
     WLAN
                    10.50            5.5              20                              0.0079                   1
(5745-5825MHz)
      Bluetooth            7.5                3.8                  20                 0.0027                   1

  Bluetooth LE            6.50                3.8                  20                 0.0021                   1

 Zigbee (Dipole)          16.50               3.8                  20                 0.0213                   1

 Zigbee (FLEX)            16.50               3.2                  20                 0.0186                   1

NOTE:
2.4GHz Directional gain = 10 log[(10G1/20 + 10G2/20 + ... + 10GN/20)2 / 2] = 3.8dBi
5.0GHz Directional gain = 10 log[(10G1/20 + 10G2/20 + ... + 10GN/20)2 / 2] = 5.5dBi
The Max Power = Max tune up power

              Frequency Band                         EIRP         Distance      Power Density               Limit
                  (MHz)                             (dBm)           (cm)          (mW/cm2)                (mW/cm2)
LTE Band 25:
                                                    28.94           20                0.1559                   1
1852.5~1912.5MHz, 1855~1910MHz




Report No.: SA180919D02                          Page No. 6 / 7                                Report Format Version: 6.1.1


              Frequency Band               EIRP           Distance   Power Density         Limit
                  (MHz)                   (dBm)             (cm)       (mW/cm2)          (mW/cm2)
LTE Band 41_BTS:
                                          29.48             20          0.1765                1
2510~2560MHz, 2630~2680MHz

              Frequency Band               EIRP           Distance   Power Density         Limit
                  (MHz)                   (dBm)             (cm)       (mW/cm2)          (mW/cm2)
LTE Band 41_CPE:
2502.5~2567.5MHz, 2622.5~2687.5MHz
2505.0~2565.0MHz, 2625.0~2685.0MHz        32.09             20          0.3219                1
2507.5~2562.5MHz, 2627.5~2682.5MHz
2510.0~2560.0MHz, 2630.0~2680.0MHz
NOTE: BTS Band 41 low band and CPE Band 41 low band cannot transmit at same time.
      BTS Band 41 high band and CPE Band 41 high band cannot transmit at same time.
      CPE mode & Sercomm WiFi module cannot transmit at same time.
      Sercomm WiFi module 2.4GHz & 5.0GHz cannot transmit at same time.
      Samsung WiFi module 2.4GHz & 5.0GHz & BT cannot transmit at same time.
      Sercomm WiFi module 2.4GHz and Samsung WiFi module 2.4GHz cannot transmit at same time.
      Sercomm WiFi module 5.0GHz and Samsung WiFi module 5.0GHz cannot transmit at same time.
Conclusion:
The formula of calculated the MPE is:
CPD1 / LPD1 + CPD2 / LPD2 + ……etc. < 1
CPD = Calculation power density
LPD = Limit of power density


BTS Band 41 + CPE Band 25 + Samsung module (2.4G WiFi + Zigbee) =
0.1765+0.1559+0.0151+0.0213=0.3688
BTS Band 41 + CPE Band 41 + Samsung module (2.4G WiFi + Zigbee) =
0.1765+0.3219+0.0151+0.0213=0.5348
BTS Band 41 + CPE Band 41 + Samsung module (5.0G WiFi + Zigbee) =
0.1765+0.3219+0.0158+0.0213=0.5355
BTS Band 41 + CPE Band 41 + Samsung module (Bluetooth + Zigbee) =
0.1765+0.3219+0.0027+0.0213=0.5224
BTS Band 41 + CPE Band 41 + Samsung module (Bluetooth LE + Zigbee) =
0.1765+0.3219+0.0021+0.0213=0.5218
BTS Band 41 + Sercomm module (5.0G WiFi) + Samsung module (Bluetooth LE + Zigbee) =
0.1765+0.3168+0.0021+0.0213=0.5167
BTS Band 41 + Sercomm module (5.0G WiFi) + Samsung module (2.4G WiFi + Zigbee) =
0.1765+0.3168+0.0151+0.0213=0.5297
BTS Band 41 + Sercomm module (2.4G WiFi) + Samsung module (5.0G WiFi + Zigbee) =
0.1765+0.3363+0.0158+0.0213=0.5499
BTS Band 41 + Sercomm module (2.4G WiFi) + Samsung module (Bluetooth + Zigbee) =
0.1765+0.3363+0.0027+0.0213=0.5368
Therefore the maximum calculations of above situations are less than the “1” limit.

--- END ---




Report No.: SA180919D02                  Page No. 7 / 7                       Report Format Version: 6.1.1



Document Created: 2019-03-26 17:33:45
Document Modified: 2019-03-26 17:33:45

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