TestRpt for DFS

FCC ID: KA2WA160A2

Test Report

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FCCID_1119818

                           DFS TEST REPORT

                          REPORT NO.: RF980110H01
                           MODEL NO.: DWA-160
                            RECEIVED: Jan. 10, 2009
                              TESTED: Feb. 17, 2009
                              ISSUED: May 25, 2009




                APPLICANT : D-Link Co.

                  ADDRESS : No.289, Shinhu 3rd Rd., Neihu District, Taipei City
                            114, Taiwan, R.O.C.



                  ISSUED BY: Bureau Veritas Consumer Products Services
                             (H.K.) Ltd., Taoyuan Branch

          TEST LOCATION: No. 81-1, Lu Liao Keng, 9th Ling,Wu Lung
                         Tsuen, Chiung Lin Hsiang, Hsin Chu Hsien
                         307, Taiwan



This test report consists of 23 pages in total. It may be duplicated completely for legal
use with the approval of the applicant. It should not be reproduced except in full,
without the written approval of our laboratory. The client should not use it to claim
product endorsement by TAF or any government agencies. The test results in the
report only apply to the tested sample.




Report No.: RF980110H01                        1                       Report Format Version 3.0.0


                                          Table of Contents
1.      LAB DECLARATION...............................................................................................3
2.      EUT INFORMATION...............................................................................................4
2.1     OPERATING FREQUENCY BANDS AND MODE OF EUT.....................................4
2.2     EUT SOFTWARE AND FIRMWARE VERSION ......................................................4
2.3     DESCRIPTION OF AVAILABLE ANTENNAS TO THE EUT ....................................4
2.4     EUT MAXIMUM CONDUCTED POWER ................................................................5
2.5     EUT MAXIMUM E.I.R.P. POWER ...........................................................................6
2.6     TRANSMIT POWER CONTROL (TPC) ..................................................................7
2.7     STATEMENT OF MAUNFACTURER ......................................................................7
3.      U-NII DFS RULE REQUIREMENTS .......................................................................8
3.1     WORKING MODES AND REQUIRED TEST ITEMS ..............................................8
3.2     TEST LIMITS AND RADAR SIGNAL PARAMETERS .............................................9
4.      TEST & SUPPORT EQUIPMENT LIST.................................................................12
4.1     TEST INSTRUMENTS..........................................................................................12
4.2     DESCRIPTION OF SUPPORT UNITS..................................................................12
5.      TEST PROCEDURE.............................................................................................13
5.1     DFS MEASUREMENT SYSTEM: .........................................................................13
5.2     CALIBRATION OF DFS DETECTION THRESHOLD LEVEL: ...............................14
5.3     DEVIATION FROM TEST STANDARD .................................................................15
5.4     CONDUCTED TEST SETUP CONFIGURATION..................................................15
5.4.1   CLIENT WITHOUT RADAR DETECTION MODE .................................................15
6.      TEST RESULTS ...................................................................................................16
6.1     SUMMARY OF TEST RESULTS ..........................................................................16
6.2     DETAILED TEST RESULTS .................................................................................17
6.2.1   TEST MODE: DEVICE OPERATING IN CLIENT WITHOUT RADAR DETECTION
        MODE...................................................................................................................17
6.2.1.1 DFS DETECTION THRESHOLD ..........................................................................17
6.2.1.2 CHANNEL CLOSING TRANSMISSION AND CHANNEL MOVE TIME .................18
6.2.1.3 NON- OCCUPANCY PERIOD ..............................................................................19
7.      TESTING LABORATORIES INFORMATION ........................................................22
8.      APPENDIX ...........................................................................................................23
8.1     APPENDIX-A........................................................................................................23




Report No.: RF980110H01                                          2                                 Report Format Version 3.0.0


1. LAB DECLARATION

               PRODUCT: Xtreme N Dual Band USB Adapter
                   MODEL: DWA-160
                   BRAND: D-Link
             APPLICANT: D-Link Co.
                  TESTED: Feb. 17, 2009
         TEST SAMPLE: MASS-PRODUCTION
           STANDARDS: FCC Part 15, Subpart E (Section 15.407)
                                 FCC 06-96


   The above equipment (model: DWA-160) has been tested by Bureau Veritas
   Consumer Products Services (H.K.) Ltd., Taoyuan Branch, and found
   compliance with the requirement of the above standards. The test record, data
   evaluation & Equipment Under Test (EUT) configurations represented herein
   are true and accurate accounts of the measurements of the sample’s EMC
   characteristics under the conditions specified in this report.




 PREPARED BY              :                                    ,   DATE: May 25, 2009
                                 ( Claire Kuan, Specialist )

 TECHNICAL
 ACCEPTANCE               :                                    ,   DATE: May 25, 2009
 Responsible for RF           ( Hank Chung, Deputy Manager )



 APPROVED BY              :                                    ,   DATE: May 25, 2009
                               (May Chen, Deputy Manager )




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2. EUT INFORMATION

2.1 OPERATING FREQUENCY BANDS AND MODE OF EUT

             TABLE 1: OPERATING FREQUENCY BANDS AND MODE OF EUT
                                                OPERATING FREQUENCY RANGE
          OPERATIONAL MODE
                                           5250~5350MHz                5470~5725MHz
 Client without radar detection and
                                                    ü                           ü
           ad hoc function



2.2 EUT SOFTWARE AND FIRMWARE VERSION

                   TABLE 2: THE EUT SOFTWARE/FIRMWARE VERSION

 NO.            PRODUCT                MODEL NO.         SOFTWARE/FIRMWARE VERSION

          Xtreme N Dual Band
  1                                   DWA-160           Driver Version: 3.0.0.135
          USB Adapter



2.3 DESCRIPTION OF AVAILABLE ANTENNAS TO THE EUT

                                 TABLE 3: ANTENNA LIST

  ANT                                   OPERATION FREQUENCY
                 ANTENNA TYPE                                          MAX. GAIN (dBi)
  NO.                                       RANGE (MHz)

      1            PCB Printed             5.25 – 5.35 GHz                    -0.86
      1            PCB Printed            5.47 – 5.725 GHz                    0.21




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2.4 EUT MAXIMUM CONDUCTED POWER

                TABLE 4: THE MEASURED CONDUCTED OUTPUT POWER

                                  MAX. POWER
 ANT      FREQUENCY BAND
 NO.           (MHz)          OUTPUT     OUTPUT
                            POWER(dBm) POWER(mW)
   1            5250~5350      15.92       39.084
   1            5470~5725      16.15       41.21


DRAFT 802.11n (20MHz)

                                  MAX. POWER
 ANT      FREQUENCY BAND
 NO.           (MHz)          OUTPUT     OUTPUT
                            POWER(dBm) POWER(mW)
   1            5250~5350      18.32       67.871
   1            5470~5725       18.2       66.088


DRAFT 802.11n (40MHz)

                                  MAX. POWER
 ANT      FREQUENCY BAND
 NO.           (MHz)          OUTPUT     OUTPUT
                            POWER(dBm) POWER(mW)
   1            5250~5350      17.89       61.532
   1            5470~5725      17.55       56.916




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2.5       EUT MAXIMUM E.I.R.P. POWER

                          TABLE 5: THE E.I.R.P OUTPUT POWER LIST
IEEE 802.11a

                                        MAX. POWER
 ANT        FREQUENCY BAND
 NO.             (MHz)             OUTPUT     OUTPUT
                                 POWER(dBm) POWER(mW)
      1         5250~5350            15.06       32.063
      1         5470~5725            16.36       43.251


DRAFT 802.11n (20MHz)

                                        MAX. POWER
 ANT        FREQUENCY BAND
 NO.             (MHz)             OUTPUT     OUTPUT
                                 POWER(dBm) POWER(mW)
      1         5250~5350            17.46       55.719
      1         5470~5725            18.41       69.343


DRAFT 802.11n (40MHz)

                                        MAX. POWER
 ANT        FREQUENCY BAND
 NO.             (MHz)             OUTPUT     OUTPUT
                                 POWER(dBm) POWER(mW)
      1         5250~5350            17.03       50.466
      1         5470~5725            17.76       59.704




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2.6 TRANSMIT POWER CONTROL (TPC)


U-NII devices operating in the 5.25-5.35 GHz band and the 5.47-5.725 GHz band
shall employ a TPC mechanism. The U-NII device is required to have the capability
to operate at least 6 dB below the mean EIRP value of 30 dBm. A TPC mechanism
is not required for systems with an e.i.r.p. of less than 500 mW.

Maximum E.I.R.P of this device is 69.343mW which less than 500mW, therefore it’s
not require TPC function.



2.7 STATEMENT OF MAUNFACTURER

Manufacturer statement confirming that information regarding the parameters of
the detected Radar Waveforms is not available to the end user. And the device
doesn’t have Ad Hoc mode on DFS frequency band.




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3. U-NII DFS RULE REQUIREMENTS

3.1 WORKING MODES AND REQUIRED TEST ITEMS

The manufacturer shall state whether the UUT is capable of operating as a Master
and/or a Client. If the UUT is capable of operating in more than one operating
mode then each operating mode shall be tested separately. See tables 1 and 2 for
the applicability of DFS requirements for each of the operational modes.

  TABLE 6: APPLICABILITY OF DFS REQUIREMENTS PRIOR TO USE A CHANNEL
                                              OPERATIONAL MODE
           REQUIREMENT                        CLIENT WITHOUT          CLIENT WITH
                                    MASTER        RADAR                 RADAR
                                                DETECTION             DETECTION
       Non-Occupancy Period           ü               ü                       ü
      DFS Detection Threshold         ü          Not required                 ü
  Channel Availability Check Time     ü          Not required           Not required
          Uniform Spreading           ü          Not required           Not required
     U-NII Detection Bandwidth        ü          Not required                 ü


TABLE 7: APPLICABILITY OF DFS REQUIREMENTS DURING NORMAL OPERATION
                                              OPERATIONAL MODE
           REQUIREMENT                        CLIENT WITHOUT          CLIENT WITH
                                    MASTER        RADAR                 RADAR
                                                DETECTION             DETECTION
      DFS Detection Threshold         ü          Not required                 ü
Channel Closing Transmission Time     ü               ü                       ü
         Channel Move Time            ü               ü                       ü
     U-NII Detection Bandwidth        ü          Not required                 ü




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3.2 TEST LIMITS AND RADAR SIGNAL PARAMETERS

DETECTION THRESHOLD VALUES


   TABLE 8: DFS DETECTION THRESHOLDS FOR MASTER DEVICES AND CLIENT
                     DEVICES WITH RADAR DETECTION

        MAXIMUM TRANSMIT POWER                             VALUE (SEE Note 1 and 2)

                   ≥ 200 milliwatt                                   -64 dBm
                   < 200 milliwatt                                   -62 dBm
Note 1: This is the level at the input of the receiver assuming a 0 dBi receive antenna.
Note 2: Throughout these test procedures an additional 1 dB has been added to the amplitude
of the test transmission waveforms to account for variations in measurement equipment. This
will ensure that the test signal is at or above the detection threshold level to trigger a DFS
response.


                     TABLE 9: DFS RESPONSE REQUIREMENT VALUES

                   PARAMETER                                         VALUE

Non-occupancy period                             Minimum 30 minutes
Channel Availability Check Time                  60 seconds
Channel Move Time                                10 seconds
                                                 See Note 1.
Channel Closing Transmission Time                200 milliseconds + an aggregate of 60
                                                 milliseconds over remaining 10 second period.
                                                 See Notes 1 and 2.
U-NII Detection Bandwidth                        Minimum 80% of the UNII 99% transmission
                                                 power bandwidth.
                                                 See Note 3.




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Note 1: The instant that the Channel Move Time and the Channel Closing Transmission Time
begins is as follows:
• For the Short Pulse Radar Test Signals this instant is the end of the Burst.
• For the Frequency Hopping radar Test Signal, this instant is the end of the last radar
Burst generated.
• For the Long Pulse Radar Test Signal this instant is the end of the 12 second period defining
the Radar Waveform.
Note 2: The Channel Closing Transmission Time is comprised of 200 milliseconds starting at
the beginning of the Channel Move Time plus any additional intermittent control signals
required to facilitate a Channel move (an aggregate of 60 milliseconds) during the remainder of
the 10 second period. The aggregate duration of control signals will not count quiet periods in
between transmissions.
Note 3: During the U-NII Detection Bandwidth detection test, radar type 1 is used and for each
frequency step the minimum percentage of detection is 90 percent. Measurements are
performed with no data traffic.



PARAMETERS OF DFS TEST SIGNALS
Step intervals of 0.1 microsecond for Pulse Width, 1 microsecond for PRI, 1 MHz for chirp
width and 1 for the number of pulses will be utilized for the random determination of
specific test waveforms.

                   TABLE 10: SHORT PULSE RADAR TEST WAVEFORMS
                                                             MINIMUM
                      PULSE                                PERCENTAGE  MINIMUM
                      WIDTH                      NUMBER OF
RADAR TYPE                        PRI (µsec)                    OF    NUMBER OF
                                                  PULSES
                      (µsec)                               SUCCESSFUL   TRIALS
                                                            DETECTION
        1                  1         1428              18              60%                  30
        2                  1-5     150-230            23-29            60%                  30
        3                 6-10     200-500            16-18            60%                  30
        4                 11-20    200-500            12-16            60%                  30
                  Aggregate (Radar Types 1-4)                          80%                 120




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                     TABLE 11: LONG PULSE RADAR TEST WAVEFORM

                          CHIRP                                      MINIMUM
            PULSE                      PRI      NUMBER                              MINIMUM
 RADAR                                                    NUMBER PERCENTAGE OF
            WIDTH         WIDTH                OF PULSES                           NUMBER OF
  TYPE                               (µsec)              OF BURSTS SUCCESSFUL
            (µsec)        (MHz)                PER BURST                             TRIALS
                                                                    DETECTION

    5       50-100        5-20     1000-2000     1-3      8-20       80%                 30


              TABLE 12: FREQUENCY HOPPING RADAR TEST WAVEFORM

              PULSE                            HOPPING HOPPING     MINIMUM
                                                                                    MINIMUM
  RADAR                       PRI    PULSES            SEQUENCE PERCENTAGE OF
              WIDTH                             RATE                               NUMBER OF
   TYPE                     (µsec)   PER HOP            LENGTH   SUCCESSFUL
              (µsec)                            (kHz)                                TRIALS
                                                        (msec)    DETECTION

     6           1           333         9      0.333     300        70%                 30




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4. TEST & SUPPORT EQUIPMENT LIST

4.1 TEST INSTRUMENTS

                            TABLE 1: TEST INSTRUMENTS LIST.
         DESCRIPTION &                                                                CALIBRATED
                                         MODEL NO.                BRAND
         MANUFACTURER                                                                   UNTIL
       R&S Spectrum analyzer                FSP40                   R&S                Apr. 24, 2009
          Signal generator                  8645A                 Agilent             Sep. 02, 2009
             Oscilloscope                 TDS 5104               Tektronix             Apr. 24, 2009



4.2 DESCRIPTION OF SUPPORT UNITS

                          TABLE 2: SUPPORT UNIT INFORMATION.

NO.           PRODUCT               BRAND          MODEL NO.                ID               SPEC.

                                                                                         The maximum
                                                                                          EIRP is 26
       802.11a/b/g/n Access                    AIR-AP1252A                                   dBm,
  1                                 Cisco                            LDK102061
       Point                                   G-A-K9
                                                                                         Antenna Gain
                                                                                           is 3.5dBi
NOTE: This device was functioned as a     Master        Slave device during the DFS test.


                      TABLE 3: SOFTWARE/FIRMWARE INFORMATION.
                                                                      SOFTWARE/FIRMWARE
 NO.            PRODUCT                    MODEL NO.
                                                                           VERSION

  1.   802.11a/b/g/n Access Point       AIR-AP1252AG-A-K9                    12.4(10b)JA1




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5. TEST PROCEDURE

5.1 DFS MEASUREMENT SYSTEM:
A complete ADT DFS Measurement System consists of two subsystems: (1) the Radar
Signal Generating Subsystem and (2) the Traffic Monitoring Subsystem. The control PC is
necessary for generating the Radar waveforms in Table 6, 7 and 8. The traffic monitoring
subsystem is specified to the type of unit under test (UUT).

CONDUCTED SETUP CONFIGURATION OF ADT DFS MEASUREMENT
SYSTEM


                                                                       Radar Signal Generating
                      Control PC
                                                                             Subsystem




                      Spectrum                    Oscilloscope
                      Analyzer                                                Attenuator




                          C/S




        Attenuator                        Attenuator                             C/S



                                   Traffic Monitoring Subsystem

       Support Unit                                                            Master /
                                                                              Client with
                                                                             DFS function




The test transmission will always be from the Master Device to the Client Device. While the Client
device is set up to associate with the Master device and play the MPEG file (6 y Magic Hours) from
Master device, the designated MPEG test file and instructions are located at:
http://ntiacsd.ntia.doc.gov/dfs/.




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5.2 CALIBRATION OF DFS DETECTION THRESHOLD LEVEL:

The measured channel is 5500 MHz. The radar signal was the same as transmitted
channels, and injected into the antenna port of AP (master) or Client Device with
Radar Detection, measured the channel closing transmission time and channel
move time. The Master antenna gain is 3.5dBi and required detection threshold is
-59.5dBm (= -64 +1+3.5)dBm. The calibrated conducted detection threshold level
is set to -59.5 dBm.

CONDUCTED SETUP CONFIGURATION OF CALIBRATION OF DFS
DETECTION THRESHOLD LEVEL



                          Control PC




                          Spectrum                            Oscilloscope   Radar Signal Generating
                          Analyzer                                                 Subsystem




                                     50Ω Load (Terminator)
                                                                                Attenuator


                                       C/S



   50Ω Load        Attenuator                                                      C/S
                                                              Attenuator
 (Terminator)




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5.3 DEVIATION FROM TEST STANDARD
No deviation.


5.4 CONDUCTED TEST SETUP CONFIGURATION


5.4.1 CLIENT WITHOUT RADAR DETECTION MODE


                     Control PC




                      Spectrum                  Oscilloscope            Radar Signal Generating
                      Analyzer                                                Subsystem




                                                                               Attenuator

                          C/S




                                                                                 C/S         Master
       Attenuator                       Attenuator




      Client (UUT)
                           Notebook                                                         Notebook




The UUT is a U-NII Device operating in Client mode without radar detection. The radar test signals
are injected into the Master Device.




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6. TEST RESULTS

6.1 SUMMARY OF TEST RESULTS

  CLAUSE                  TEST PARAMETER                REMARKS            PASS/FAIL

   15.407       DFS Detection Threshold                Not Applicable           NA

   15.407       Channel Availability Check Time        Not Applicable           NA

   15.407       Channel Move Time                       Applicable             Pass

   15.407       Channel Closing Transmission Time       Applicable             Pass

   15.407       Non- Occupancy Period                   Applicable             Pass

   15.407       Uniform Spreading                      Not Applicable           NA

   15.407       U-NII Detection Bandwidth              Not Applicable           NA

   15.407       Non-associated test                     Applicable             Pass




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6.2 DETAILED TEST RESULTS

6.2.1     TEST MODE: DEVICE OPERATING IN CLIENT WITHOUT RADAR
          DETECTION MODE.

Client with injection at the Master. (The radar test signals are injected into the
Master Device.


6.2.1.1 DFS DETECTION THRESHOLD

For a detection threshold level of –64dBm and the Master antenna gain is 3.5dBi.
The Required detection threshold is -59.5dBm (= -64 +1+3.5)dBm. The conducted
radar burst level is set to -59.5dBm.




                                                            Radar signal




                                                             Noise Floor




                                      Radar Signal 1


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6.2.1.2 CHANNEL CLOSING TRANSMISSION AND CHANNEL MOVE TIME




                                  Radar Signal




                                     Traffic Signal

                                                                           Noise Floor




NOTE: T1 denotes the start of Channel Move Time upon the end of the last Radar burst. T2
denotes the data transmission time of 200ms from T1. T4 denotes the 10 second from T1 to
observe the aggregate duration of transmissions.




                          Radar Signal



                          Traffic Signal                              Control Signal
                                                                      From Master


                                                                                       Noise Floor




NOTE: An expanded plot for the device vacates the channel in the required 200ms.




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6.2.1.3 NON- OCCUPANCY PERIOD

ASSOCIATED TEST

1) Test results demonstrating an associated client link is established with the master on a test
frequency.




EUT (Client ) links with master on 5500MHz



2) The client and DFS-certified master device are associated, and the movie can be streamed as
specified in the DFS Order for a non-occupancy period test.




Client plays a specified files via master.




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3). The device transmits one type of radar as specified in the DFS Order.




Radar 1 is used to test during DFS testing.


4) The test frequency has been monitored to ensure no transmission of any type has occurred for 30
minutes;
Note: If the client moves with the master, the device is considered compliant if nothing appears in
the client nonoccupancy period test. For devices that shut down (rather than moving channels), no
beacons should appear;
5)An analyzer plot that contains a single 30-minute sweep on the original test frequency.



                      Traffic Signal


                          Injected into Radar



                                                                            Noise Floor




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NON-ASSOCIATED TEST

Master was off.
During the 30 minutes observation time, The UUT did not make any transmissions
in the DFS band after UUT power up.




                                             Signal   of
                                            adjacent channel


                                                               Noise Floor




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7. TESTING LABORATORIES INFORMATION

We, Bureau Veritas Consumer Products Services (H.K.) Ltd., Taoyuan Branch,
were founded in 1988 to provide our best service in EMC, Radio, Telecom and
Safety consultation. Our laboratories are accredited and approved by the
following approval agencies according to ISO/IEC 17025.

   USA                    FCC, NVLAP
   Germany                TUV Rheinland
   Japan                  VCCI
   Norway                 NEMKO
   Canada                 INDUSTRY CANADA , CSA
   R.O.C.                 TAF, BSMI, NCC
   Netherlands            Telefication
   Singapore              GOST-ASIA(MOU)
   Russia                 CERTIS(MOU)

Copies of accreditation certificates of our laboratories obtained from approval
agencies can be downloaded from our web site:
www.adt.com.tw/index.5/phtml. If you have any comments, please feel free to
contact us at the following:

   Linko EMC/RF Lab:                           Hsin Chu EMC/RF Lab:
   Tel: 886-2-26052180                         Tel: 886-3-5935343
   Fax: 886-2-26052943                         Fax: 886-3-5935342

   Hwa Ya EMC/RF/Safety Telecom Lab:
   Tel: 886-3-3183232
   Fax: 886-3-3185050

   Web Site: www.adt.com.tw


The address and road map of all our labs can be found in our web site also.




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8. APPENDIX

8.1 APPENDIX-A

MODIFICATIONS OR ADDING COMPONENTS DURING THE TEST

No any modifications are made to the EUT by the lab during the test.




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Document Created: 2009-06-04 13:56:16
Document Modified: 2009-06-04 13:56:16

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