RF Exposure report

FCC ID: 2ARTOPPMN3U

RF Exposure Info

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FCCID_4165647

Delta Electronics, Inc.

TEST REPORT

REPORT NUMBER
190100336TWN-001

ISSUE DATE

Jan. 31, 2019

PAGES
18


DOCUMENT CONTROL NUMBER

© 2019 INTERTEK


                                                                                     Intertek Report No.: 190100336TWN-001
Test Report                                                                                                                    Page: 1 of 11




                         Maximum Permissible Exposure
                                    (MPE)
                              Evaluation Report
Applicant:                                 Delta Electronics, Inc.
                                           No.39, Sec. 2, Huandong Rd., Shanhua Dist., Tainan City 741,
                                           Taiwan


Product:                                   SUB 1G module

Model No.:                                 PPM N3U SB1-C

Brand Name:                                Delta

FCC ID:                                    2ARTOPPMN3U

Test Method/ Standard:                     FCC 1.1310

Test By:                                   Intertek Testing Services Taiwan Ltd.,
                                           Hsinchu Laboratory
                                           No. 11, Lane 275, Ko-Nan 1 Street, Chia-Tung Li,
                                           Shiang-Shan District, Hsinchu City, Taiwan




                                                                                                                                  0597


Prepared and Checked by:                                                      Approved by:




Durant Wei                                                                    Rico Deng
Engineer                                                                      Supervisor
This report is for the exclusive use of Intertek's Client and is provided pursuant to the agreement between Intertek and its Client. Intertek's
responsibility and liability are limited to the terms and conditions of the agreement. Intertek assumes no liability to any party, other than
to the Client in accordance with the agreement, for any loss, expense or damage occasioned by the use of this report. Only the Client is
authorized to permit copying or distribution of this report and then only in its entirety. Any use of the Intertek name or one of its marks for
the sale or advertisement of the tested material, product or service must first be approved in writing by Intertek. The observations and test
results in this report are relevant only to the sample tested. This report by itself does not imply that the material, product, or service is or
has ever been under an Intertek certification program.


                                                Intertek Report No.: 190100336TWN-001
                                                                          Page: 2 of 11
TEST REPORT




                              Revision History

       Report No.      Issue Date                    Revision Summary
   190100336TWN-001   Jan. 31, 2019   Original report


                                                                                     Intertek Report No.: 190100336TWN-001
TEST REPORT                                                                                                                   Page: 3 of 11




                                                       Table of Contents


Summary of Tests ....................................................................................................................... 4
1. General Information ............................................................................................................... 5
   1.1 Identification of the EUT .................................................................................................. 5
   1.2 Antenna description ......................................................................................................... 5
   1.3 Peripherals equipment ..................................................................................................... 5
2. Test specifications................................................................................................................... 6
   2.1 Introduction ...................................................................................................................... 6
   2.2 RF Exposure Limit ............................................................................................................. 7
   2.3 RF Exposure calculations .................................................................................................. 9
   2.4 Operation mode ............................................................................................................... 9
   2.5 Test equipment ............................................................................................................... 10
   2.6 Test Set-up ...................................................................................................................... 10
3. Test results ............................................................................................................................ 11


                                                   Intertek Report No.: 190100336TWN-001
TEST REPORT                                                                  Page: 4 of 11




Summary of Tests


         MPE Evaluation meet FCC OET No. 65: 1997, IEEE C95.1-2005


      Test                           Reference                           Results
 MPE Evaluation    FCC Guidelines for Human Exposure IEEE C95.1         Complies


                                                    Intertek Report No.: 190100336TWN-001
TEST REPORT                                                                   Page: 5 of 11




1. General Information

1.1 Identification of the EUT


Product:                  SUB 1G module
Model No.:                PPM N3U SB1-C
Operating Frequency:      902.7 MHz~ 927.3 MHz
Channel Number:           3 channels
Access scheme:            DTS
Rated Power:           DC 12V from Power supply
Power Cord:            N/A
Sample receiving date: Sep. 13, 2018
Sample condition:         Workable
Test Date(s):             Jan. 31, 2019



1.2 Antenna description

Antenna 1
Antenna Gain : 2.0 dBi
Antenna Type : Dipole Antenna
Connector Type : I-pex

Antenna 2
Antenna Gain : 1.5 dBi
Antenna Type : Dipole Antenna
Connector Type : I-pex



1.3 Peripherals equipment

       No.            Model no.            Data Cable
   Power supply       TP-1603C             N/A


                                                        Intertek Report No.: 190100336TWN-001
TEST REPORT                                                                        Page: 6 of 11




2. Test specifications

2.1 Introduction

The EUT operates in the 902 MHz, 915 MHz, 928 MHz. Due to the EUT (include antenna) at
its normal operation distance is at least 20 cm from the human body, the EUT was defined as
a Mobile Device.


The reason to do the MPE Evaluation is to avoid the RF hazard to human body. The
maximum output power and gain of the antenna were used to calculate the limited Power
density (S) at 20 cm distance away from the product. The limit for Maximum Permissible
Exposure (MPE) specified in FCC 1.1310 and Safety Code 6 are followed.


According to 1.1307 (b)(1), systems operating under the provisions of this section shall be
operated in a manner that ensure that the public is not exposed to radio frequency energy
level in excess of the Commission’s guideline.


                                                       Intertek Report No.: 190100336TWN-001
TEST REPORT                                                                       Page: 7 of 11



2.2 RF Exposure Limit

According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate
the environmental impact of human exposure to radio-frequency (RF) radiation as specified
in 1.1307(b) and KDB 447498 D01 General RF Exposure Guidance v06.


ntertek
Total Quality. Assured.




                    SAR Test Exclusion Thresholds for 100 MHz — 6 GHz and > 50 mm
  Approximate SAR test exclusion power thresholds at selected frequencies and test separation distances
  are illustrated in the following table.

  MHz         50    60     70     80    90     100    110    120    130    140     150      160          170      180      190     mm

   100

   150

   300

   450

   835

   900

   1500      122   222    322    422    522    622    722    822    922    1022    1122     1222      1322        1422     1522    mW

   1900      109   209    309    409    509    609    709    809    909    1009    1109     1209      1309        1409     1509

  2450        96    196   296    396    496    596    696    796    896    996     1096     1196      1296        1396     1496

  3600        79    179   279    379    479    579    679    779    879    979     1079     1179      1279        1379     1479

  5200        66    166   266    366    466    566    666    766    866    966     1066     1166      1266        1366     1466

  5400        65    165   265    365    465    565    665    765    865    965     1065     1165      1265        1365     1465

  5800        62    162   262    362    462    562    662    762    862    962     1062     1162      1262        1362     1462



                           SAR Test Exclusion Thresholds for < 100 MHz and < 200 mm
          Approximate SAR test exclusion power thresholds at selected frequencies and test separation distances
          are illustrated in the following table.

  MHz       <50     50     60     70     80     90    100    110    120    130    140     150      160     170      180     190    mm

   100       237   474    481    487    494    501    507    514    521    527    534     541      547     554      561     567

    50       308   617    625    634    643    651    660    669    677    686    695     703      712     721      729     738

    10      474    948    961    975    988    1001   1015   1028   lo41   10sS   1068    1081     1095    1108     1121    1135

    1        711   1422   1442   1462   1482   1502   1522   1542   1562   1582   1602    1622     1642    1662     1682    1702   mW

   0.1       948   1896   1923   1949   1976   2003   2029   2056   2083   2109   2136    2163    2189     2216     2243    2269

   0.05     1019   2039   2067   2096   2125   2153   2182   2211   2239   2268   2297    2325    2354     2383     2411    2440

   0.01     1185   2370   2403   2437   2470   2503   2537   2570   2603   2637   2670    2703    2737     2770     2803    2837


                                                        Intertek Report No.: 190100336TWN-001
TEST REPORT                                                                       Page: 9 of 11



2.3 RF Exposure calculations

From §FCC 1.1310 table 1, the maximum permissible RF exposure for an uncontrolled
environment is 1 mW/(cm2) (or 10 W/m2)*

Power density (S) is calculated by the following formula:

S = (P * G)/4R2

where, S = Power density (mW/cm2)
       P = Output power to antenna (mW)
       R = Distance between radiating structure and observation point (cm)
       G = Gain of antenna in numeric
        = 3.1416

Example:
        Assume a mobile device operates at 2412MHz and its maximum output power is
50mW, and the maximum gain of antenna is 1 (numeric) /0dBi.

then the power density (S) = (50 * 1)/4**202 = 0.00995 (mW/cm2) (or = 0.0995 W/m2)


2.4 Operation mode


The signal is maximized through rotation and placement in the three orthogonal axes.




             X axis                         Y axis                      Z axis
After verifying three axes, we found the maximum electromagnetic field was occurred at
X axis. The final test data was executed under this configuration.


                                                      Intertek Report No.: 190100336TWN-001
TEST REPORT                                                                      Page: 10 of 11



2.5 Test equipment

                                                                                     Next
                                                                   Calibration
  Equipment           Brand              Model No.    Serial No.                  Calibration
                                                                      Date
                                                                                     Date
Power Meter          Anritsu             ML2495A      0844001      2018/10/29     2019/10/28

Power Sensor         Anritsu             MA2411B      0738452      2018/10/29     2019/10/28
  RF Cable
                     SUHNER           SUCOFLEX 102    CB0006       2018/05/03     2019/05/02
9kHz~26.5GHz



2.6 Test Set-up



                               20 dB Attenuator
                                      &
                                  DC block

                                                     EUT

                        Power sensor
       Power meter



 Remark: Cable loss = 1.5 dB


                                                                 Intertek Report No.: 190100336TWN-001
TEST REPORT                                                                                     Page: 11 of 11



3. Test results

                                        Output Output
                                         power power Tune-up Max                Max                  Limit of
                              Antenna                                                      Power
                 Frequency                 to        to      Power Tune-up Tune-up                    power Distance
 Mode Channel                  Gain0                                                      density
                   (MHz)                antenna antenna Tolerance Power Power                         density (cm)
                             (numeric)                                                  (mW/cm2)
                                            0         0       (dB)    (dBm) (mW)                    (mW/cm2)
                                         (dBm) (mW)
         Low       902.7        1.58     13.94 24.77          2.00     15.94 39.26        0.00781       1.0    20
  DTS    Mid         915        1.58     14.17 26.12          2.00     16.17 41.40        0.00824       1.0    20
         High      927.3        1.58     14.38 27.42          2.00     16.38 43.45        0.00864       1.0    20
The Notice in Installation Manual has been stated as below:
While installing and operating this transmitter, the radio frequency exposure limit of 1 mW/ (cm 2) may be
exceeded at distances close to the transmitter. Therefore, the user must maintain a minimum distance of 20 cm
from the device at all time.



Document Created: 2019-01-31 17:51:02
Document Modified: 2019-01-31 17:51:02

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