RF Exposure

FCC ID: 2AOSP-U002

RF Exposure Info

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RE051-17-103200-1-A Ed. 0




                                                        RF exposure report

                                                         According to the standard:
                                                           CFR 47 FCC PART 15
                                                            RSS-102 – Issue 5


                                                             Equipment under test:
                                                               MICRO TRACKER 2


                                                             FCC ID: 2AOSP-U002
                                                           IC NUMBER: 23543-U002


                                                                        Company:
                                                                        ABEEWAY




Distribution: Mr Danchesi                                                                                           (Company: ABEEWAY)


                                                                                                                    Number of pages: 9

                                                                          Technical Verification and
       Ed.                    Date                 Modified                   Quality Approval
                                                   Page(s) Name and Function                                                                     Visa
                                                                                                                                                                                      S51 RTY 000 INT 00004 [ 00]




        0                 6-Sep-18                 Creation M. DUMESNIL, Radio Technical Manager



Duplication of this document is only permitted for an integral photographic facsimile. It includes the number of pages referenced here above.
This document is the result of testing a specimen or a sample of the product submitted. It does not imply an assessment of the conformity of the whole manufactured
products of the tested sample.

  Siège Social : Emitech - 3, rue des Coudriers - Z.A. de l’Observatoire - 78180 MONTIGNY LE BX - France
  Siret : 344 545 645 00022 - Tél. : 33 (0)1 30 57 55 55 - Fax : 33 (0)1 30 43 74 48 - E-mail : contact@emitech.fr - URL : www.emitech.fr                   ACCREDITATIONS N°
                                                                                                                                                                1-0107, 1-0826,
  S.A. au capital de 1 560 000 € - R.C.S. VERSAILLES 344 545 645 - APE 7112B                                                                                    1-0827,1-1925,
                                                                                                                                                                1-2069,1-2070,
                                                                                                                                                               1-2376 & 1-6086
                                                                                                                                                                  LISTE DES SITES ACCREDITES ET
                                                                                                                                                                                       PORTEES
                                                                                                                                                              DISPONIBLES SUR WWW.COFRAC.FR


                                                                           RR051-17-103200-1-A Ed. 0




DESIGNATION OF PRODUCT:            MICRO TRACKER 2


Serial number (S/N):               20635F01010001FA


Reference / model (P/N):           U002-52


Software version:                  actt-micro-mtos-usb-rev1.2-4
                                   Asset Tracker v1.x (for production)


MANUFACTURER:                      ABEEWAY



COMPANY SUBMITTING THE PRODUCT:

Company:                           ABEEWAY

Address:                           635, ROUTE DES LUCIOLES
                                   06560 VALBONNE
                                   FRANCE

Responsible:                       Mrs Denis

Person present during the tests:   Mr Danchesi (29 and 30 – august 2018)



DATES OF TEST:                     From 17-Oct-17 to 5-Sep-18



TESTING LOCATION:                  EMITECH ANGERS laboratory at JUIGNE SUR LOIRE (49) FRANCE
                                   FCC Accredited under US-EU MRA Designation Number: FR0009
                                   Test Firm Registration Number: 873677


TESTED BY:                         S. LOUIS                       VISA:




WRITTEN BY:                        S. LOUIS




                                               Page 2/9


                                                                                                                   RR051-17-103200-1-A Ed. 0




                                                               CONTENTS


                    TITLE                                                                                                                         PAGE

1.   INTRODUCTION ....................................................................................................................................... 4
2.   PRODUCT DESCRIPTION ....................................................................................................................... 4
3.   NORMATIVE REFERENCE ...................................................................................................................... 5
4.   RF EXPOSURE ......................................................................................................................................... 6




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                                                                                     RR051-17-103200-1-A Ed. 0




1.       INTRODUCTION

This report presents the results of radio test carried out on the following radio equipment: Micro Tracker 2, in
accordance with normative reference.

The device under test integrates:
    multifrequencies wireless transceiver LoRa.
    BLE radio transceiver
    WiFi radio transceiver
    GPS receiver.

The transceivers (LoRa, BLE and WiFi) can’t emit simultaneously as declared by the manufacturer.
The applicant declares that radio functions are not operational during the charge of the battery.



2.       PRODUCT DESCRIPTION

Class:                           B

Utilization:                     Residential

Power source:                    Rechargeable 3.7Vdc Battery.

Power level, frequency range and channels characteristics are not user adjustable.
The details pictures of the product and the circuit boards are joined with this file.

LoRa Part:

Antenna type and gain:           Integrated antenna, gain declared by the applicant (considered -1.5 dBi)

Power adjusted by software: The power level is tuned to reach max power

Operating frequency range:       From 902.3 MHz to 914.9 MHz

Frequency tested:                902.3 MHz, 908.7 MHz, 914.9 MHz for transmission
                                 923.3 MHz, 925.1 MHz, 927.5 MHz for reception

Frequencies plan detailed transmitter:
       Channel frequencies            LoRa bandwidth (KHz)       Number of channel        Channel width (KHz)
     902,3+i*0,2MHz (i=0 à 63)                125                       64                       200

Frequencies plan detailed receiver:
      Channel frequencies             LoRa bandwidth (KHz)       Number of channel        Channel width (KHz)
     923,3+i*0.6MHz (i=0 à 7)                 500                       8                        600

Number of channels:              64

Channel spacing:                 200 kHz

Modulation:                      LoRa with spread factor:7 and 10
                                                     Page 4/9


                                                                               RR051-17-103200-1-A Ed. 0




BLE Part:

Antenna type and gain:       integral antenna (unknown gain); (considered 0 dBi)

Operating frequency range:   From 2402 MHz to 2480 MHz

Number of channels:          40

Channel spacing:             2MHz

Modulation:                  Bluetooth Low Energy


WiFi Part:

Antenna type and gain:       integral antenna (unknown gain); (considered 0 dBi)

Operating frequency range:   From 2412 MHz to 2462 MHz

Number of channels:          11

Channel spacing:             5MHz

Modulation:                  WiFi 802.11b



3.    NORMATIVE REFERENCE

The standards and testing methods related throughout this report are those listed below.
They are applied on the whole test report even though the extensions (version, date and amendment) are not
repeated.

CFR 47 FCC Part 15 (2018)      Radio Frequency Devices

447498 D01 General RF          RF Exposure procedures and equipment authorization policies for mobile and
Exposure Guidance v06          portable equipment

RSS-102                        Issue 5, March 2015
                               Radio Frequency (RF) Exposure
                               Compliance of Radiocommunication
                               Apparatus (All Frequency Bands)




                                                Page 5/9


                                                              RR051-17-103200-1-A Ed. 0




4.    RF EXPOSURE

LoRa Part:

Calculus for LoRa with SF7 mode in standalone

Conducted output power: 114mW at 914.9MHz
With an antenna gain considered: -1.5 dBi

Duty Cycle: (Following Applicant declaration)
12 frames of 35 ms during a period of 6 minutes
     Duty cycle = 0.0012= 0.12%


Conducted output power Average = 114 x 0.0012 = 0.137mW


Calculus for LoRa with SF10 mode in standalone

Conducted output power: 113mW at 914.9MHz
With an antenna gain considered: -1.5 dBi

Duty Cycle: (Following Applicant declaration)
12 frames of 250 ms during a period of 6 minutes
     Duty cycle = 0.0083 = 0.83%


Conducted output power Average = 113 x 0.0083 = 0.938mW

The minimum value of 5 mm is considered for the analysis.




                                                   Page 6/9


                                                                                  RR051-17-103200-1-A Ed. 0




Limit following KDB 447498, Paragraph 4.3.1:

The product must respect the exclusion limit for 10-g extremity SAR.
[(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] * [√f(GHz)] ≤
7.5

According this formula:
Power threshold, mW = [(7.5 * min. test separation distance, mm) / √f(GHz) ]
Power threshold, mW = [(7.5 * 5) / √(0.915)]
Power threshold, mW = 39.2 mW
The maximum measured power is lower than 39.2 mW.

The equipment fulfils the requirements on maximum conducted or equivalent isotropically radiated
power (e.i.r.p) for general population/uncontrolled exposure and therefore fulfils the requirements of
47 CFR §1.1310 at the distance greater than 5 mm between the user and the antenna.


Limit following RSS 102:

In accordance with § 2.5.1 of RSS 102 Issue 5 the equipment respect exemption limits for routine evaluation in
controlled environment for the limits of maximum conducted or equivalent isotropically radiated power (e.i.r.p)
below:




For 10-g extremity SAR the value of table above multiplied by a factor of 2.5
For 915MHz, exemption limit is: 16.2mW x 2.5 = 40.5mW.

The equipment fulfils the requirements on maximum conducted or equivalent isotropically radiated
power (e.i.r.p) for general public/uncontrolled environment.




                                                   Page 7/9


                                                                                  RR051-17-103200-1-A Ed. 0




BLE Part:

Maximum measured power = 87.5 dBµV/m = 0.1687 mW at 2402 MHz
with P = (E×d)2 / (30×Gp) with d = 3 m and Gp = 1

The minimum value of 5 mm is considered for the analysis.


Limit following KDB 447498, Paragraph 4.3.1:

The product must respect the exclusion limit for 10-g extremity SAR.
[(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] * [√f(GHz)] ≤
7.5

According this formula:
Power threshold, mW = [(7.5 * min. test separation distance, mm) / √f(GHz) ]
Power threshold, mW = [(7.5 * 5) / √(2.402)]
Power threshold, mW = 24.2 mW
The maximum measured power is lower than 24.2 mW.

The equipment fulfils the requirements on maximum conducted or equivalent isotropically radiated
power (e.i.r.p) for general population/uncontrolled exposure and therefore fulfils the requirements of
47 CFR §1.1310 at the distance greater than 5 mm between the user and the antenna.


Limit following RSS 102:

In accordance with § 2.5.1 of RSS 102 Issue 5 the equipment respect exemption limits for routine evaluation in
controlled environment for the limits of maximum conducted or equivalent isotropically radiated power (e.i.r.p)
below:




For 10-g extremity SAR the value of table above multiplied by a factor of 2.5
For 2402MHz, exemption limit is: 4.3mW x 2.5 = 10.75mW.

The equipment fulfils the requirements on maximum conducted or equivalent isotropically radiated
power (e.i.r.p) for general public/uncontrolled environment.




                                                   Page 8/9


                                                                                  RR051-17-103200-1-A Ed. 0




WiFi Part:

In accordance with KDB 447498 D01 General RF Exposure Guidance v06, Paragraph 4.3.1.


Maximum measured power = 1.216 mW at 2437 MHz
with P = (E×d)2 / (30×Gp) with d = 3 m and Gp = 1

The minimum value of 5 mm is considered for the analysis.


Limit following KDB 447498, Paragraph 4.3.1:

The product must respect the exclusion limit for 10-g extremity SAR.
[(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] * [√f(GHz)] ≤
7.5

According this formula:
Power threshold, mW = [(7.5 * min. test separation distance, mm) / √f(GHz) ]
Power threshold, mW = [(7.5 * 5) / √(2.437)]
Power threshold, mW = 24 mW
The maximum measured power is lower than 24 mW.

The equipment fulfils the requirements on maximum conducted or equivalent isotropically radiated
power (e.i.r.p) for general population/uncontrolled exposure and therefore fulfils the requirements of
47 CFR §1.1310 at the distance greater than 5 mm between the user and the antenna.


Limit following RSS 102:

In accordance with § 2.5.1 of RSS 102 Issue 5 the equipment respect exemption limits for routine evaluation in
controlled environment for the limits of maximum conducted or equivalent isotropically radiated power (e.i.r.p)
below:




For 10-g extremity SAR the value of table above multiplied by a factor of 2.5
For 2437MHz, exemption limit is: 4.1mW x 2.5 = 10.25mW.

The equipment fulfils the requirements on maximum conducted or equivalent isotropically radiated
power (e.i.r.p) for general public/uncontrolled environment.




                                                   Page 9/9



Document Created: 2019-01-22 08:22:49
Document Modified: 2019-01-22 08:22:49

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