RF Exposure

FCC ID: PD9LEN3945ABG

RF Exposure Info

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FCCID_736081

                                                           Lenovo(Japan), Ltd., Date: November 22, 2006
                                                                   Document Number: UY610-03-0031-14

                         RF Exposure Evaluation
                      in co-locating with other transmitters

1. Configuration
 The host PC device (DL-Note) consists of the following wireless communication features, and the
applying modular transmitter device (FCC ID: PD9LEN3945ABG) was previously certified by the
Commission on October/18/2006 with the same configuration in this application.

 The difference from the previous grant condition is:
 to enable the simultaneous transmission with the WWAN modular transmitters listed below.
 The co-location with the Bluetooth module remains the same.


       Figure-1: Wireless communication features in Lenovo DL-note

           *1: The combination of FCC ID: PD9LEN3945ABG and N7N8755 is not marketed in USA.

                                                                     for FCC ID: N7N-MC5720
                                                                              or N7NMC8755 *1
                                                                              or N7NMC8765




                            for FCC ID: PD9LEN3945ABG
                                     or PPD-AR5BXB6
                                     or PPD-AR5BXB72-L




                                                          (3mW)
                                                        for FCC ID: MCLJ07H081




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                                                     Lenovo(Japan), Ltd., Date: November 22, 2006
                                                             Document Number: UY610-03-0031-14




2. Justification for SAR testing
  The subjected host device is a tablet type PC and the transmission antennas are very close to
the human body. Therefore the applying LMA transmitter and the antenna system is categorized as
a Potable device pursuant to FCC CFR 47 Section 2.1093.
   The separate SAR test report (document number: 06LR019SAR-F) was measured for the applying
modular transmitter (FCC ID: PD9LEN3945ABG) with the co-located Bluetooth (FCC ID: MCLJ07H081)
and each WWAN modular transmitter (FCC ID: N7N-MC5720 or FCC ID: N7NMC8765) in active and
transmitting simultaneously. Also the co-located WWAN modules were examined the SAR values
independently and granted by the Commotion for the subjected Tablet PC on October/31/2006. The
document numbers of SAR test reports for these WWAN transmitters referred in this exhibit are
06U10631-3B and 06U10632-4B.

   Hereafter, the calculation of grid-summed SAR result for WLAN and each WWAN SAR testing is used
for the RF exposure evaluation.


3. Conclusion
 The maximum grid-summed SAR results for the WLAN and WWAN modules are as follows, then the
applying device (FCC ID: PD9LEN3945ABG) has found to comply with the limits for the SAR
compliance according to FCC CFR 47 section 2.1093, Portable devices.

       WLAN 2.4GHz DTS band with Bluetooth and WWAN            1.052 mW/g
      WLAN 5.2GHz U-NII band with Bluetooth and WWAN           1.436 mW/g
       WLAN 5.8GHz DTS band with Bluetooth and WWAN            1.516 mW/g




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                                                           Lenovo(Japan), Ltd., Date: November 22, 2006
                                                                   Document Number: UY610-03-0031-14
4. Summary of grid-summed SAR result
 The SAR test was performed with the following configuration, and the same terms of each
configuration are referred in the SAR test report.




                                                    The LCD screen covers over
                                                    the keyboard.




    Laptop mode
                     WLAN Main                           WLAN Aux
                                           WWAN
                                                                                10mm               15mm
                 15mm

                                                                      Bluetooth
                                              Position A                 (3mW)
                      Position B
                                                  SAR probe
   Table-1 Grid-summed SAR result of Laptop mode
                                                                               [Unit of results: mW/g]
                            PD9LEN3945ABG                                                   Sum of
                 SAR at      + each WWAN             SAR at     N7N-MC5720    N7NMC8765     WLAN +
               position A    + MCLJ07H081          position B                               WWAN
     SAR Test Report No.     06LR019SAR-F                       06U10632-4B   06U10631-3B     *1
                  2.4G                             EVDO-22H       0.081
                 (DTS)
                                   0.616                                          N/A       1.052
                                                   EVDO-24E       0.436
                                                   GRPS-22H                   0.122
      Laptop      5.2G                            EGRPS-22H                   0.035
    (Lap-Held)   (U-NII)
                                   1.000                         N/A                      1.436
                                                   GRPS-24E                   0.277
                                                  EGRPS-24E                   0.137
                  5.8G                            WCDMA-22H                   0.055
                 (DTS)
                                   1.080                         N/A                      1.516
                                                  WCDMA-24E                   0.358
                                         *1: SAR result of WLAN + the highest SAR result of WWAN


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                                                Lenovo(Japan), Ltd., Date: November 22, 2006
                                                        Document Number: UY610-03-0031-14




Tablet PL (Primary Landscape)                     Tablet PP (Primary Portrait)




                                                               20.4cm


                                        17cm
                                                  15.4cm




    Body side
                           Position C                  Position D



         Table-2 Grid-summed SAR result of Tablet Primary mode
                                                      [Unit of results: mW/g]
                                  PD9LEN3945ABG            PD9LEN3945ABG
                        SAR at     + N7N-MC5720             + N7NMC8765
                position B or D    + MCLJ07H081             + MCLJ07H081
           SAR Test Report No.                  06LR019SAR-F
                         2.4G
                        (DTS)
                                        0.151                  0.242
           Primary       5.2G
                                        0.525                  0.199
          Landscape (U-NII)
                         5.8G
                       (DTS)
                                        0.598                  0.178
                        2.4G
                       (DTS)
                                        0.155                  0.271
           Primary      5.2G
                      (U-NII)
                                        0.292                  0.955
           Portrait
                        5.8G
                      (DTS)
                                        0.182                  1.083




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                                              Lenovo(Japan), Ltd., Date: November 22, 2006
                                                      Document Number: UY610-03-0031-14


Tablet SL (Secondary Landscape)                   Tablet SP (Secondary Portrait)



                                                                                 WLAN Aux



                                                                        20.0cm


               4.3mm




     Position E
                                                                 Position F
   Body side      The transmissions from the antennas at those angles are controlled
                  to be disabled for the applying WLAN module and WWAN
                                                                    (See next page.)


        Table-3 Grid-summed SAR result of Tablet Secondary mode
                                                     [Unit of results: mW/g]
                                  PD9LEN3945ABG        PD9LEN3945ABG
                        SAR at     + N7N-MC5720         + N7NMC8765
                position E or F    + MCLJ07H081          + MCLJ07H081
           SAR Test Report No.                06LR019SAR-F
                        2.4G
                       (DTS)
                                      0.306                  0.065
          Secondary     5.2G
                                      0.108                  0.053
          Landscape (U-NII)
                        5.8G
                      (DTS)
                                      0.134                  0.128
                         2.4G
                        (DTS)
                                      0.625                  0.850
          Secondary      5.2G
                       (U-NII)
                                      0.833                  0.847
           Portrait
                         5.8G
                       (DTS)
                                      1.286                  1.006




                                       5/6


                                                      Lenovo(Japan), Ltd., Date: November 22, 2006
                                                              Document Number: UY610-03-0031-14

[Transmission control in “Tablet” operation mode]
z   The system recognizes mechanically that it is transformed from “Notebook mode” to “Tablet
    mode”.




             Notebook mode


                                                                          Tablet mode



z   The screen angle of Tablet mode is determined by operators with the screen rotation switch shown
    below, then the system recognizes which screen mode in PL, PP, SL or SP is selected.

z   When the SL screen mode was selected, the system controls the transmission power of the Aux
    antenna for WLAN module (FCC ID: PPD-AR5 BXB72-L) to restrain to 1mW, or the transmission of
    WLAN module (FCC ID: PPD-AR5 BXB6 or PD9LEN3945ABG) is forced to switch to the main
    antenna.
    If WWAN module was active, the system does not function with SL mode for any WWAN module,
    and the screen returns to PL mode automatically so that operator won’t use the SL mode.

z   When the SP screen mode was selected, the system controls the transmission power of the Main
    antenna for WLAN module (FCC ID: PPD-AR5 BXB72-L) to restrain to 1mW, or the transmission of
    WLAN module (FCC ID: PPD-AR5 BXB6 or PD9LEN3945ABG) is forced to switch to the Aux
    antenna.




                            screen rotation switch




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Document Created: 2006-11-22 20:04:28
Document Modified: 2006-11-22 20:04:28

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