RF Exposure Evaluation

FCC ID: ANO20040700HER

RF Exposure Info

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FCCID_495250

FCC Test Report, FCC ID: ANO20040700HER                                Document Number: FCC 19-0280-0


                        RF Exposure Evaluation
1. RF Exposure evaluation for the applying LMA transmitter
 The built-in antenna connected to the applying modular transmitter is located at the left hinge of
keyboard section (IBM ThinkPad T40 Series LCD 15 inch model, R50 Series, X30 Series, and X40
Series), or left edge of LCD section (IBM ThinkPad T40 Series LCD 14 inch model).



                     T40 Series 15”
                       R50 Series
                                                                           T40 Series 14”
                       X30 Series
                       X40 Series




 The closest antenna separation from person’s body is approximately 2.5 cm, when a user operates
the PC on one’s lap. Therefore the applying transmitter device with the subjected antenna systems is
categorized as a portable device by FCC CFR 47 section 2.1093.

 The conducted output power of the applying Bluetooth transmitter is 2mW (3.1dBm) and the
maximum antenna gain is 2.84 dBi. Therefore both conducted power and radiated power (EIRP) are
far below 50m W.

With reference to OET Bulletin 65 (Edition 97-01), Supplement C (Edition 01-01), Section 3,
footnote 14, the applying modular transmitter with this built-in antenna complies with the RF
exposure evaluation regarding CFR 47 Part 15.247(b)(5) without a SAR compliance test report.




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FCC Test Report, FCC ID: ANO20040700HER                               Document Number: FCC 19-0280-0



2. RF Exposure evaluation with co-located WLAN transmitters
The applying Bluetooth modular transmitter is co-located with one of the following WLAN transmitters.
    - ANO20020201CLK
    - ANO20040501CX2
    - ANO20030500CMR
    - ANO20040600BTL
    - ANO20040601CX2

  As shown below, the all WLAN antennas of each host device and the Bluetooth antenna are assembled
apart from each other with 20 cm of distance or more.
  Therefore, those co-located WLAN transmitter devices are allowed to evaluate the RF exposure
compliance independently of the applying Bluetooth modular transmitter. In other word, the SAR
testing for the applying transmitter in co-locating with those WLAN transmitters is not required, when
the WLAN transmitters could satisfy the RF exposure requirement with those own transmission powers.
  Those WLAN transmitters were already certified as “Mobile ” category for all host devices, therefore
they also comply with the RF exposure requirement.

                            Antenna separation of ThinkPad R50 Series


      WLAN Main antenna
                                                            WLAN Auxiliary antenna




                                                                  Built-in Bluetooth antenna



                          25cm




                  2.5cm




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FCC Test Report, FCC ID: ANO20040700HER                            Document Number: FCC 19-0280-0

                             Antenna separation of ThinkPad T40 Series
                WLAN Main antenna


                                                                         WLAN Auxiliary antenna
                                                 23cmm




              for LCD 14” model

                                               for LCD 15” model

               Built-in Bluetooth antenna




                             Antenna separation of ThinkPad X30 Series




                                                20cm




                                                               Built-in
                                                               Bluetooth
                                                               Antenna


                                               WLAN main antenna

                                                            WLAN Aux antenna




                                        20cm




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FCC Test Report, FCC ID: ANO20040700HER                           Document Number: FCC 19-0280-0




                             Antenna separation of ThinkPad X40 Series

                   WLAN Main antenna



                                                                   WLAN Aux antenna




                                      20cm




        Built-in Bluetooth antenna




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Document Created: 2004-11-30 13:20:20
Document Modified: 2004-11-30 13:20:20

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