RF EXPOSURE

FCC ID: N7NWISMO228

RF Exposure Info

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FCCID_1188965

              RF Exposure Evaluation Report                                      Report No. : FA980420




                RF Exposure Evaluation Report

             APPLICANT             : Sierra Wireless Inc.
                                    13811 Wireless Way, Richmond, Canada
             EQUIPMENT             : Module

             BRAND NAME : WAVECOM

             MODEL NAME : WISMO228

             FCC ID                : N7NWISMO228

             FILING TYPE           : Certification

             STANDARD              : OET Bulletin 65 Supplement C (Edition 01-01)


      We, SPORTON INTERNATIONAL INC., would like to declare that the tested sample has been
      evaluated in accordance with FCC OET Bulletin 65 Supplement C (Edition 01-01).


      The test results in this report apply exclusively to the tested model / sample. Without
      written approval of SPORTON INTERNATIONAL INC., the test report shall not be
      reproduced except in full.




      Reviewed by:




               Roy Wu / Manager


                              SPORTON INTERNATIONAL INC.
No. 52, Hwa Ya 1st Rd., Hwa Ya Technology Park, Kwei-Shan Hsiang, Tao Yuan Hsien, Taiwan, R.O.C.


 SPORTON INTERNATIONAL INC.                                            Page Number        : 1 of 5
 TEL : 886-3-327-3456                                                  Report Issued Date : Oct. 21, 2009
 FAX : 886-3-328-4978                                                  Report Version     : Rev. 01
 FCC ID : N7NWISMO228


             RF Exposure Evaluation Report                                 Report No. : FA980420




                               Revision History

  REPORT NO.       VERSION               DESCRIPTION                               ISSUED DATE

    FA980420        Rev. 01            Initial issue of report                      Oct. 21, 2009




SPORTON INTERNATIONAL INC.                                       Page Number        : 2 of 5
TEL : 886-3-327-3456                                             Report Issued Date : Oct. 21, 2009
FAX : 886-3-328-4978                                             Report Version     : Rev. 01
FCC ID : N7NWISMO228


              RF Exposure Evaluation Report                                            Report No. : FA980420



1. Introduction
The report has been prepared on behalf of Sierra Wireless      INC. Module to show compliance with the RF
Exposure.


Requirements
Three different categories of transmitters are defined by the FCC in OET Bulletin 65. These categories are
fixed installation, mobile and portable and are defined as follows:


 Fixed installation:
Fixed location means that the device, including its antenna, is physically secured at a permanent location and
is not able to be easily moved to another location. Additionally, distance to humans form the antenna is
maintained to at least 2 meters.


 Mobile Devices:
A mobile device is defined as a transmitting device designed to be used in other than fixed locations and to be
generally used in such a way that a separation distance of at least 20 centimeters is normally maintained
between the transmitters’s radiating structures and the body of the user or nearby persons. Transmitters
designed to be used by consumers or workers that can be easily re-located are considered mobile devices if
they meet the 20 centimeter separation requirement. The FCC rules for evaluating mobile devices for RF
compliance are found in 47 CFR 2.1091.


 Portable Devices:
A portable device is defined as a transmitting device designed to be used so that the radiating structure(s) of
the device is/are within 20 centimeters of the body of the user. Portable device requirements are found in
Section 2.1093 of the FCC’s Rules (47 CFR 2.1093)


For this test report the WAVECOM WISMO228 is being done as a mobile device and the MPE is evaluated at
the 20cm test distance.


The FCC also categorizes the use of the device as based upon the user’s awareness and ability to exercise
control over his or her exposure. The two categories defined are Occupational/Controlled Exposure and
General Population/Uncontrolled Exposure. These two categories are defined as follows:




SPORTON INTERNATIONAL INC.                                                   Page Number        : 3 of 5
TEL : 886-3-327-3456                                                         Report Issued Date : Oct. 21, 2009
FAX : 886-3-328-4978                                                         Report Version     : Rev. 01
FCC ID : N7NWISMO228


               RF Exposure Evaluation Report                                          Report No. : FA980420




 Occupational/controlled Exposure:
In general, occupational/controlled exposure limits are applicable to situation in which persons are exposed
as a consequence of their employment, who have been made fully aware of the potential for exposure.
Awareness of the potential for RF exposure in a workplace or similar environment can be provided through
specific training as part of a RF safety program. If appropriate, warning signs and labels can also be used to
establish such awareness by providing prominent information on the risk of potential exposure and
instructions on methods to minimize such exposure risks.


 General Population/Uncontrolled Exposure:
The general population / uncontrolled exposure limits are applicable to situations in which the general public
may be exposed or in which persons who are exposed as a consequence of their employment may not be
made fully aware of the potential for exposure or cannot exercise control over their exposure. Members of the
general public would come under this category when exposure is not employment-related; for example, in the
case of a wireless transmitter that exposes persons in its vicinity. Warning labels placed on low-power
consumer devices such as cellular telephones are not considered sufficient to allow the device to be
considered under the occupational/controlled category and the general population/uncontrolled exposure
limits apply to these devices.


Since there are no warnings or training associated with this unit and it can be used by anyone, the Module is
evaluated to the General Population / Uncontrolled Exposure limits.




SPORTON INTERNATIONAL INC.                                                  Page Number        : 4 of 5
TEL : 886-3-327-3456                                                        Report Issued Date : Oct. 21, 2009
FAX : 886-3-328-4978                                                        Report Version     : Rev. 01
FCC ID : N7NWISMO228


               RF Exposure Evaluation Report                                           Report No. : FA980420



2. Radio Frequency Radiation Exposure Evaluation

According to 1.1310 of the FCC rules, the power density limit for General Population/Uncontrolled Exposure is
               2                                              2
f/1500 mW/cm for 300 MHz to 1500 MHz and 1.0 mW/cm for 1500 MHz to 100000 MHz. As this is a mobile
application the MPE shall be 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


For this device, the calculation is as follows:
                                     EIRP             EIRP
                       EIRP                                     Calculated RF Exposure       Limit
    Function                      Peak Power      Average Power                                    2     Result
                      (dBm)                                          at d = 20 (cm)        (mW/cm )
                                     (mW)             (mW)
  Cellular Band       32.80        1905.46           238.18              0.05                0.55         Pass
   PCS Band           29.46         883.08           110.39              0.02                1.00         Pass
Note: The EIRP, 32.80 dBm, for Cellular band is got from the ERP: 30.65 dBm with the factor, EIRP = ERP +
       2.15 dBi.


Based on the above calculation at 20 cm the Module is below the Power Density limit.




SPORTON INTERNATIONAL INC.                                                   Page Number        : 5 of 5
TEL : 886-3-327-3456                                                         Report Issued Date : Oct. 21, 2009
FAX : 886-3-328-4978                                                         Report Version     : Rev. 01
FCC ID : N7NWISMO228



Document Created: 2009-10-21 13:55:12
Document Modified: 2009-10-21 13:55:12

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