RF Exposure

FCC ID: XPYSARAU280

RF Exposure Info

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FCCID_2520619

RF Exposure and Maximum
ERP/EIRP Assessment

For


SARA‐U280 GSM/UMTS Module
FCC ID: XPYSARAU280
IC: 8595A‐SARAU280


Assessment Reference:         MDE_UBLOX_1501_MPEa




 Test Laboratory:
 Borsigstrasse 11
 Germany
 7Layers AG
 40880 Ratingen

 Note:
 The following test results relate only to the devices specified in this document. This report shall not be reproduced in parts
 without the written approval of the test laboratory.

 7 layers AG                                        Aufsichtsratsvorsitzender                   Registergericht registered in:
 Borsigstrasse 11                                   Chairman of the Supervisory Board:           Düsseldorf, HRB 44096
 40880 Ratingen, Germany                            Peter Mertel                                 USt-IdNr  VAT No.:
 Phone: +49 (0) 2102 749 0                          Vorstand Board:                             DE 203159652
 Fax: +49 (0) 2102 749 350                          Dr. H.-J. Meckelburg                         TAX No. 147/5869/0385
 www.7Layers.com                                    Dr. H. Ansorge


Table of Contents

0    Summary                                                                3
    0.1   Technical Report Summary                                           3

1    Administrative Data                                                    4
    1.1   Testing Laboratory                                                4
    1.2   Project Data                                                      4
    1.3   Applicant Data                                                    4
    1.4   Manufacturer Data                                                 4

2    Test object Data                                                       5
    2.1   General EUT Description                                           5
    2.2   EUT Main components                                               5
    2.3   Ancillary Equipment                                               5
    2.4   Auxiliary Equipment                                               5
    2.5   Operating Modes                                                   6

3    Evaluation Results                                                     7
    3.1   Maximum ERP / EIRP                                                 7
    3.2   RF Exposure Evaluation for Module                                  8
    3.3   RF Exposure Evaluation for multiple transmitters in co-location   10




Assessment Reference: MDE_UBLOX_1501_MPEa                                   Page 2 of 12


P   layers
    testing for a smarter world




          0       Summary

          O0.1     Technical Report Summary

          Type of Report
          RF Exposure and Maximum ERP/EIRP Assessment for an UMTS radio module. Including RF Exposure for use
          with co—located radios on generic host device.

          Applicable FCC Rules

          For RF Exposure:
          OET Bulletin 65 Edition 97—01 August 1997
          FCC 47 CFR §1.1307
          FCC 47 CFR §1.1310
          RSS—102 Issue 4 — March 2010

          For Maximum ERP/EIRP:

          FCC 47 CFR §22.913
          IC SRSP—503 Issue 7, September 2008
          FCC 47 CFR §24.232
          IC SRSP—510 Issue 5, February 2009




          Note:
          None




                                                  Report version control
                                                                                                Version
                 Version          Release date     Changes                                      validity

                 01               22.01.2015       Initial version                              Valid




           Responsible for             @                        Responsible
           Accreditation Scope:         £                       for Report:




          Assessment Reference: MDE_UBLOX_1501_MPEa                                                     Page 3 of 12


1     Administrative Data
1.1 Testing Laboratory

 Company Name:                                         7Layers AG

 Address                                               Borsigstr. 11
                                                       40880 Ratingen
                                                       Germany

 This facility has been fully described in a report submitted to the FCC and accepted under the registration
 number 96716.

 The test facility is also accredited by the following accreditation organisation:
 Laboratory accreditation no.:                          DAkkS D‐PL‐12140‐01‐01

 Responsible for Accreditation Scope:                  Dipl.‐Ing. Bernhard Retka
                                                       Dipl.‐Ing. Robert Machulec
                                                       Dipl.‐Ing. Andreas Petz

 Report Template Version:                              2014‐05‐15

1.2 Project Data

 Responsible for assessment and report:                Mr. Patrick Lomax

 Date of Report:                                       2015‐01‐26

1.3 Applicant Data

 Company Name:                                         u‐blox Italia S.p.A.

 Address:                                              Via Stazione di Prosecco, 15
                                                       34010 Sgonico (Trieste)
                                                       Italy
 Contact Person:                                       Giulio Comar

1.4 Manufacturer Data
 Company Name:                                         please see applicant data

 Address:


 Contact Person:




Assessment Reference: MDE_UBLOX_1501_MPEa                                                           Page 4 of 12


2       Test object Data
2.1 General EUT Description

 Equipment under Test                                 SARA‐U280 Module
 Type Designation:                                    SARA‐U280
 Kind of Device: GPRS/EDGE MSC                        UMTS Module
 GPRS Multi‐slot class                                NA
 FCC ID:                                              XPYSARAU280
 IC Number:                                           8595A‐SARAU280


General product description:

The EUT is Cellular radio module supporting WCDMA/HSDPA/HSUPA




2.2 EUT Main components
Type, S/N, Short Descriptions etc. used in this Test Report

         Short         Equipment           Type            Serial No.       HW Status         SW Status       Date of Receipt
      Description      under Test       Designation
    EUT A Code:        SARA U280           U280          355922060011        188BB0             23.28           2015‐01‐19
    DE1015012                                                 141
    AA02



NOTE: The short description is used to simplify the identification of the EUT in this test report.



2.3 Ancillary Equipment
For the purposes of this test report, ancillary equipment is defined as equipment which is used in conjunction
with the EUT to provide operational and control features to the EUT. It is necessary to configure the system in a
typical fashion, as a customer would normally use it. But nevertheless Ancillary Equipment can influence the
test results.

     Short           Equipment           Type            HW Status        SW Status         Serial no.          FCC ID
   Description       under Test       Designation
 N/A                                                                                                      ‐



2.4 Auxiliary Equipment

For the purposes of this test report, auxiliary equipment is defined as equipment which is used temporarily to
enable operational and control features especially used for the tests of the EUT which is not used during
normal operation or equipment that is used during the tests in combination with the EUT but is not subject of
this test report. It is necessary to configure the system in a typical fashion, as a customer would normally use it.
But nevertheless Auxiliary Equipment can influence the test results.

     Short           Equipment           Type            Serial no.       HW Status        SW Status            FCC ID
   Description       under Test       Designation
 N/A                                                                                                      –




Assessment Reference: MDE_UBLOX_1501_MPEa                                                                         Page 5 of 12


2.5 Operating Modes

This chapter describes the operating modes of the EUTs used for testing.

     Op. Mode      Description of Operating Modes                      UMTS Band   Remarks
     Op‐mode 1     EUT transmitting in standalone configuration        FDD2/FDD5   Antenna‐to‐person distance > 20cm

     Op‐mode 2     EUT transmitting in co‐location with hypothetical   FDD 5       Antenna‐to‐person distance > 20cm
                   Bluetooth radio where the separation distance
                   between co‐located transmitter’s antennas is <
                   20cm.
     Op‐mode 3     EUT transmitting in co‐location with hypothetical   FDD 2       Antenna‐to‐person distance > 20cm
                   Bluetooth radio where the separation distance
                   between co‐located transmitter’s antennas is <
                   20cm.
     Op‐mode 4     EUT transmitting in co‐location with hypothetical   FDD 5       Antenna‐to‐person distance > 20cm
                   WLAN radio where the separation distance
                   between co‐located transmitter’s antennas is <
                   20cm.
     Op‐mode 5     EUT transmitting in co‐location with hypothetical   FDD 2       Antenna‐to‐person distance > 20cm
                   WLAN radio where the separation distance
                   between co‐located transmitter’s antennas is <
                   20cm.
     Op‐mode 6     EUT transmitting in co‐location with hypothetical   FDD 5       Antenna‐to‐person distance > 20cm
                   Bluetooth and WLAN radios where the separation
                   distance between co‐located transmitter’s
                   antennas is < 20cm.
     Op‐mode 7     EUT transmitting in co‐location with hypothetical   FDD 2       Antenna‐to‐person distance > 20cm
                   Bluetooth and WLAN radios where the separation
                   distance between co‐located transmitter’s
                   antennas is < 20cm.




Assessment Reference: MDE_UBLOX_1501_MPEa                                                                   Page 6 of 12


          3      Evaluation Results


          3.1 Maximum ERP / EIRP

                         Standard                                              Frequency Band
           FCC 47 CFR §22.913                                (FDD5 WCDMA/HSUPA/HSDPA)

           IC SRSP‐503 Issue 7, September 2008               (FDD5 WCDMA/HSUPA/HSDPA)

           FCC 47 CFR §24.232                                (FDD2 WCDMA/HSUPA/HSDPA)

           IC SRSP‐510 Issue 5, February 2009            (FDD2 WCDMA/HSUPA/HSDPA)


          3.1.1 Test Limits
          For the 850MHz band, FCC §22.913 states that the maximum ERP of this device shall not exceed 7 Watts. IC
          SRSP‐503 Issue 7, states that this device shall not exceed a maximum EIRP of 11.5 Watts

          For the purposes of this test report, the 7 Watt ERP limit stipulated in FCC §22.913 has been converted to an
          equivalent ERIP value of 11.5 Watts.

          For the 1900MHz band, FCC §24.232 and IC SRSP‐510 Issue 5 states that the maximum EIRP of this device shall
          not exceed 2 Watts.

          3.1.2 Test Protocol

                     Maximum antenna gain to comply with EIRP limits for FCC and Industry Canada




                                                                 Maximum        Maximum                                       Maximum
                                                                 Conducted      Conducted                        FCC / IC     antenna gain to
                                              Frequency          output power   output power   Freq of highest   EIRP limit   meet EIRP Limit
Band          Mode           Duty Cycle (%)   (MHZ)              (dBm)          (mW)           power             (mW)         (dBi)
  FDD 2          UMTS               100.0%     1850 ‐ 1907.6         22.72        187.068214           1907.60       2000           10.3
  FDD 5          UMTS               100.0%      824 ‐ 846.6          22.93       196.3360277            836.00      11484           17.7



          3.1.3 Conclusion
                           Max antenna gain for EIRP Limit     Band              Gain (dBi)
                                                               FDD 2             10.3
                                                               FDD 5             17.7




          Assessment Reference: MDE_UBLOX_1501_MPEa                                                                     Page 7 of 12


            3.2 RF Exposure Evaluation for Module

                                                                       Standards
                                                  OET Bulletin 65 Edition 97‐01 August 1997
                                                             FCC 47 CFR §1.1307
                                                             FCC 47 CFR §1.1310
                                                       RSS‐102 Issue 4 – March 2010


            3.2.1 Test limits
            As specified in Table 1B of 47 CFR 1.1310 – Limits for Maximum Permissible Exposure (MPE), Limits for General
            Population/Uncontrolled Exposure.

                                      Frequency range (MHz)                      Power density (mW/cm²)
                                              300 – 1,500                                f/1500
                                            1,500 – 100,000                                1.0


            Equation OET bulletin 65, page 18, edition 97‐01:
                                                                                                       ²
            Where:
                      S = power density
                      P = power input to the antenna
                      G = power gain of the antenna in the direction of interest relative to an isotropic radiator
                      R = distance to the centre of radiation of the antenna

            3.2.2 Test Protocol


                    Maximum antenna gain to comply with MPE limits for FCC and Industry Canada
                                                                                                  Equivalent                   Maximum
                                                               Maximum          Maximum           conducted                    antenna
                                                               Conducted        Conducted         output                       gain to        Separation
                                                               output power     output power      power          MPE Limit     meet MPE       distance
Band           Mode          Duty Cycle    Frequency (MHZ)     (dBm)            (mW)              (mW)           (mW/cm²)      Limit (dBi)    (cm)
       FDD 2       UMTS         100.0%                1907.6              24            251.19         251.19        1.0000            13.0            20
       FDD 5        UMTS         100.0%                836.0               24           251.19          251.19        0.5573          10.5            20
            * Conducted output power values bases on “Tune‐up” information provided by manufacturer.


            3.2.3 Conclusion
                    Maximum antenna gain for MPE compliance       Frequency Band    *Gain (dBi)        Maximum gain (dBi) for MPE
                                                                                    for overall        compliance
                                                                                    compliance
                                                                  FDD 2             10.3                             13.0
                                                                  FDD 5             10.0                             10.5


            * The actual maximum gain shall be the highest value which meets both RF exposure and EIRP limitations.




            Assessment Reference: MDE_UBLOX_1501_MPEa                                                                           Page 8 of 12


   MPE Calculation using antenna gain which meets MPE and EIRP Limits (Informational)

                                                                                Equivalent
                                               Maximum         Maximum          conducted                              MPE using
                                               Conducted       Conducted        output                   Separation    gain for
                       Duty       Frequency    output power    output power     power        MPE Limit   distance      overall
Band     Mode          Cycle      (MHZ)        (dBm)           (mW)             (mW)         (mW/cm²)    (cm)          compliance
 FDD 2          UMTS     100.0%       1907.6              24           251.19       251.19     1.0000             20    0.5354643
 FDD 5          UMTS     100.0%        836.0              24           251.19       251.19     0.5573             20    0.4997243




   Assessment Reference: MDE_UBLOX_1501_MPEa                                                                  Page 9 of 12


3.3 RF Exposure Evaluation for multiple transmitters in co‐location

                                                         Standards
                                     OET Bulletin 65 Edition 97‐01 August 1997
                                                FCC 47 CFR §1.1307
                                                FCC 47 CFR §1.1310
                                          RSS‐102 Issue 4 – March 2010


3.3.1 Co‐Location Considerations
The calculation below is used to consider situations in which simultaneous exposure to fields of different
frequencies occur. The calculation is performed by the sum of each relative exposure for each equipment
according to the following criteria.



Where:
Seq is the power density of the electromagnetic field at a given distance by a specific transmitter and a defined
frequency.
Slin is the MPE limit for the frequency being evaluated.




3.3.2 Assumptions

1. SARA U280 Module does not support power reduction for multiple time slots on the uplink.
2. Antenna separation from is ≥ 20cm.
3. Separation distance between co‐located transmitting antennas is 0cm.
4. Hypothetical Bluetooth radio is assumed to have an EIRP of 100mW.
5. Hypothetical WLAN radio is assumed to have an EIRP of 2000mW.



3.3.3 Test Protocol

OP mode‐1

                                                    Maximum                                  MPE
                                                    Conducted     Equivalent                 Value
                                                    output        conducted                  using      Separation
                         Duty         Frequency     power         output power MPE Limit     Max        distance
   Band        Mode      Cycle        (MHZ)         (dBm)         (mW)            (mW/cm²)   gain       (cm)         Verdict
      FDD 2     UMTS       100.0%          1907.6            24          251.19     1.0000     0.2746           20   Pass
      FDD 5     UMTS       100.0%           836.0            24          251.19     0.5573     0.3081           20   Pass
* Conducted output power values bases on “Tune‐up” information provided by manufacturer.
*The above table is to determine the MPE values using the maximum gain values obtained in section 3.3.4 of
this document.




Assessment Reference: MDE_UBLOX_1501_MPEa                                                                      Page 10 of 12


                                     MPE Calculation for Single Transmitter installed in Generic host

 Radio type    Duty        EIRP (mW)      EIRP              MPE Limit            Maximum           Power                 Separation     Verdict
               Cycle                      Equivalent        (mW/cm²)             antenna gain      density               distance
                                          (mW)                                   (dBi)             (mW/cm²)              (cm)
  Bluetooth    25%         100.00         76.43             1.0000               0.0               0.0152                20             Pass

   WLAN        100%        2000.00        2000.00           1.0000               0.0               0.3979                20             Pass


OP mode‐1
                                           Relative exposure for Primary Transmitter


                                                                                                              Seq
                                                                                       Slin                 ‐‐‐‐‐‐‐‐‐‐
 OP‐Mode       Mode        EIRP            Frequency (MHZ)       Seq                   (mW/cm²)            SLin               Verdict
   FDD 2        UMTS         316.2278                 1907.6                 0.5738       1.0000        0.57376032            Pass
   FDD 5        UMTS         354.8134                  836.0                 0.3081       0.5573        0.55286041            Pass



                 Relative exposure for Secondary transmitter

 Transmitter   EIRP         Seq               Slin (mW/cm²)     Seq
                            (mW/cm²)                            ‐‐‐‐‐‐‐‐‐‐
                                                                SLin
 Bluetooth     76.43        0.0152            1.0000            0.015205278
 WLAN          2000.00      0.3979            1.0000            0.397887694
 Bluetooth     76.43        0.0152            1.0000            0.015205278
 WLAN          2000.00      0.3979            1.0000            0.397887694




Assessment Reference: MDE_UBLOX_1501_MPEa                                                                                      Page 11 of 12


   Simultaneous exposure or Primary and Secondary transmitter
     installed in generic host device with Bluetooth and WLAN
                                                                                Compliance
                                                                                 Maximum
                                       Maximum               Maximum           (Spri/Slim_pri)
                          Frequency                          Spri/Slim_pri +     + (Ssec /
 OP‐Mode    Transmitter   (MHZ)        Seq / SLin            Ssec / Slin_Sec    Slin_Sec) < 1
             Bluetooth      2441                   0.01521
     2      SARA‐U280        850                   0.55286       0.5681         Compliant
             Bluetooth      2441                   0.01521
     3      SARA‐U280       1900                   0.57376       0.5890         Compliant
              WLAN          2437                   0.39789
     4      SARA‐U280        850                   0.55286       0.9507         Compliant
              WLAN          2437                   0.39789
     5      SARA‐U280       1900                   0.57376       0.9716         Compliant
             Bluetooth      2441                   0.01521
              WLAN          2437                   0.39789
     6      SARA‐U280        850                   0.55286       0.9660         Compliant
             Bluetooth      2441                   0.01521
              WLAN          2437                   0.39789
     7      SARA‐U280       1900                   0.57376       0.9869         Compliant




3.3.4 Conclusion

                          FCC Part 15, Subpart C    Op. Mode              Result
                                                    op‐mode 2             Compliant
                                                    op‐mode 3             Compliant
                                                    op‐mode 4             Compliant
                                                    op‐mode 5             Compliant
                                                    op‐mode 6             Compliant



                  Frequency Band                  Maximum gain for co‐location compliance
                FDD 5                        7.9 dBi
                FDD 2                        10.6 dBi


Maximum gain for SARA U280 for use in a generic host in a co‐located environment with a Bluetooth radio
operating at 100mW and WLAN transmitter operating at 2000mW.




Assessment Reference: MDE_UBLOX_1501_MPEa                                                        Page 12 of 12



Document Created: 2015-01-29 16:45:28
Document Modified: 2015-01-29 16:45:28

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