Test Report DFS

FCC ID: PY307300073

Test Report

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FCCID_918945

                              DFS TEST REPORT

                            REPORT NO.: RF970131L13-1
                             MODEL NO.: WNDA3100
                             RECEIVED: Jan. 31, 2008
                                TESTED: Feb. 16 ~ Feb. 21, 2008
                                ISSUED: Mar. 04, 2008



                  APPLICANT: NETGEAR, INC.

                     ADDRESS: 4500 GREAT AMERICA PARKWAY SANTA
                              CLARA CA95054 U.S.A.



                   ISSUED BY: Advance Data Technology Corporation

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



This test report consists of 24 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 CNLA, A2LA or any government agencies. The test results in the report
only apply to the tested sample.




Report No.: RF970131L13-1                      1                           Report Format Version 2.0.6


                                           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 AND MINIMUM CONDUCTED POWER ............................................5
2.5     EUT MAXIMUM AND MINIMUM E.I.R.P. POWER .......................................................5
2.6     STATEMENT OF MAUNFACTURER............................................................................6
3.      U-NII DFS RULE REQUIREMENTS.............................................................................7
3.1     WORKING MODES AND REQUIRED TEST ITEMS....................................................7
3.2     TEST LIMITS AND RADAR SIGNAL PARAMETERS...................................................8
4.      TEST & SUPPORT EQUIPMENT LIST ......................................................................10
4.1     TEST INSTRUMENTS ................................................................................................10
4.2     DESCRIPTION OF SUPPORT UNITS .......................................................................10
5.      TEST PROCEDURE................................................................................................... 11
5.1     ADT DFS MEASUREMENT SYSTEM: ....................................................................... 11
5.2     CALIBRATION OF DFS DETECTION THRESHOLD LEVEL: ....................................12
5.3     DEVIATION FROM TEST STANDARD.......................................................................13
5.4     CONDUCTED TEST SETUP CONFIGURATION .......................................................13
5.4.1 CLIENT WITHOUT RADAR DETECTION MODE ......................................................13
6.      TEST RESULTS..........................................................................................................14
6.1     SUMMARY OF TEST RESULT...................................................................................14
6.2     DETELED TEST RESULTS ........................................................................................15
6.2.1 TEST MODE: DEVICE OPERATING IN CLIENT WITHOUT RADAR DETECTION
        MODE. ........................................................................................................................15
6.2.1.1 DFS DETECTION THRESHOLD ................................................................................15
6.2.1.2 CHANNEL CLOSING TRANSMISSION AND CHANNEL MOVE TIME ......................17
7.      TESTING LABORATORIES INFORMATION..............................................................23
8.      APPENDIX................................................................................................................ A-1




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1. LAB DECLARATION


               PRODUCT: RangeMax Dual Band Wireless-N USB Adapter
         BRAND NAME: NETGEAR

             MODEL NO.: WNDA 3100

         TEST SAMPLE: ENGINEERING SAMPLE
                  TESTED: Feb. 16 ~ Feb. 21, 2008
            APPLICANT: NETGEAR, INC.
           STANDARDS:              FCC Part 15, Subpart E (Section 15.407)
                                   FCC 06-96



The above equipment (Model: WNDA 3100) has been tested by Advance Data
Technology Corporation, 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:   Mar. 04, 2008
                                      Ivy Lin / Specialist

   TECHNICAL
   ACCEPTANCE               :                                    ,   DATE:   Mar. 04, 2008
   Responsible for RF            Dylan Chiou / Senior Engineer


   APPROVED BY              :                                    ,   DATE:   Mar. 04, 2008
                                Gary Chang / Assistant 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
                                                        9                            9
 and ad hoc mode




2.2         EUT SOFTWARE AND FIRMWARE VERSION
                            Table 2: The EUT software/firmware version.

 No.                Product                    Model No.            Software/Firmware Version
           RangeMax Dual Band
   1       Wireless-N USB Adapter      WNDA 3100                   Driver Version: 3.0.0.84




2.3         DESCRIPTION OF AVAILABLE ANTENNAS TO THE EUT
                                       Table 3: Antenna list.

                                                            Operation Frequency            Max.
Ant NO.               Antenna                Type
                                                                   Range                 Gain(dBi)
       1           Printed Antenna      Intenal antenna       5.15 – 5.85 GHz               4.25
       2           Printed Antenna      Intenal antenna       5.15 – 5.85 GHz               4.99




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2.4     EUT MAXIMUM AND MINIMUM CONDUCTED POWER


                       Table 4: The measured conducted output power.
IEEE 802.11A

                                           MAX. Power                  MIN. Power
  Ant
          Frequency Band(MHz)
  NO.                                Output           Output      Output          Output
                                   Power(dBm)       Power(mW)   Power(dBm)      Power(mW)
   1          5250~5725MHz           16.97            49.77        10              10


Draft 802.11n(40MHz)

                                           MAX. Power                  MIN. Power
  Ant
          Frequency Band(MHz)
  NO.                                Output           Output      Output          Output
                                   Power(dBm)       Power(mW)   Power(dBm)      Power(mW)
   1          5250~5725MHz           16.76            47.37        10              10


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


                            Table 5: The E.I.R.P output power list.

IEEE 802.11A

                                           MAX. Power                  MIN. Power
  Ant
          Frequency Band(MHz)
  NO.                                Output           Output      Output          Output
                                   Power(dBm)       Power(mW)   Power(dBm)      Power(mW)
   1          5250~5725MHz           21.96            157.04      14.99           31.55


Draft 802.11n(40MHz)

                                           MAX. Power                  MIN. Power
  Ant
          Frequency Band(MHz)
  NO.                                Output           Output      Output          Output
                                   Power(dBm)       Power(mW)   Power(dBm)      Power(mW)
   1          5250~5725MHz           21.70            149.46      14.99           31.55




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2.6     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 radar
                                       Master
                                                    radar detection       detection
       Non-Occupancy Period              9            Not required              9
      DFS Detection Threshold            9            Not required              9
 Channel Availability Check Time         9            Not required       Not required
         Uniform Spreading               9            Not required       Not required
      U-NII Detection Bandwidth          9            Not required              9

           Table 7: Applicability of DFS requirements during normal operation.

                                                    Operational Mode
            Requirement                              Client without   Client with radar
                                       Master
                                                    radar detection       detection
      DFS Detection Threshold            9            Not required              9
  Channel Closing Transmission
                                         9                 9                    9
             Time
         Channel Move Time               9                 9                    9
      U-NII Detection Bandwidth          9            Not required              9




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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.
                                                                      Value
          Maximum Transmit Power
                                                                (See Notes 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.
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.



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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
                                                                                                  Minimum
                      Pulse Width               PRI                Number      Percentage of
  Radar Type                                                                                      Number of
                        (µsec)                (µsec)              of Pulses     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



                             Table 11: Long Pulse Radar Test Waveform


                                                                                  Minimum
             Pulse       Chirp                     Number                                          Minimum
  Radar                                 PRI                  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

                                                                     Hopping      Minimum
               Pulse                   Pulses     Hopping                                          Minimum
   Radar                       PRI                                  Sequence    Percentage of
               Width                    per        Rate                                            Number of
   Type                      (µsec)                                  Length      Successful
               (µsec)                   Hop        (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.

                                                                             CALIBRATED
DESCRIPTION & MANUFACTURER               MODEL NO.           BRAND
                                                                                   UNTIL
       R&S Spectrum analyzer                FSP40              R&S           Aug. 12, 2008
           Signal generator                 8645A            Agilent         Sep. 12, 2008
             Oscilloscope                  TDS 5104         Tektronix        Apr. 16. 2008



4.2     DESCRIPTION OF SUPPORT UNITS
                              Table 2: Support Unit information.

 No.            Product            Brand      Model No.        FCC ID              Spec.
       Dual-Band Wireless-N
                                                            Q87-WRT600
  1    Gigabit Router with       Broadcom WRT600N
                                                            NV11
       Storage Link
Note: This device was functioned as a■Master □Slave device during the DFS test.



                            Table 3: Software/Firmware information.

 No.              Product                  Model No.          Software/Firmware Version
       Dual-Band Wireless-N
1.     Gigabit Router with          WRT600N                CFE 4.151.10.5
       Storage Link




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5. TEST PROCEDURE

5.1     ADT 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

       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  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 5500MHz. 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 3dBi and required detection threshold is -58dBm (= -62 +1+3)dBm.
The calibrated conducted detection threshold level is set to -59dBm. The tested level is
lower than required level hence it provides margin to the limit.


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




       Attenuator                       Attenuator                              C/S         Master




      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 RESULT

   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




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6.2     DETELED 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 –62dBm and the Master antenna gain is 3dBi.
The Required detection threshold is -58dBm (= -62 +1+3)dBm. The conducted
radar burst level is set to -59dBm. The tested level is lower than required level
hence it provides margin to the limit.




                                                        Radar signal




                                                        Noise Floor




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                            Radar Signal 1




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6.2.1.2 CHANNEL CLOSING TRANSMISSION AND CHANNEL MOVE TIME


WLAN Traffic

IEEE 802.11A




NOTE: T1 denotes the start of duty cycle period is 1th second. T2 denotes the end
of duty cycle period is 2th second. T2 – T1= 1 second. Duty Cycle = 9.61%

Draft 802.11n(40MHz)




NOTE: T1 denotes the start of duty cycle period is 1th second. T2 denotes the end
of duty cycle period is 2th second. T2 – T1= 1 second. Duty Cycle = 9.189%
                                 Radar signal 1




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IEEE 802.11A



                               Radar Signal




                               Traffic Signal


                            Master’s probo request
                                                               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. T3 denotes the
end of Channel Move Time. T4 denotes the 10 second from T1 to observe the
aggregate duration of transmissions.




             Radar Signal




                                                              Noise Floor




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




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Draft 802.11n (40MHz)

                            Radar Signal




                                      Traffic Signal



                               Master’s probo request

                                                              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. T3 denotes the
end of Channel Move Time. T4 denotes the 10 second from T1 to observe the
aggregate duration of transmissions.




            Radar Signal



                                    Traffic Signal
                                                                    Noise Floor




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




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Type 1 Radar Statistical Performances
 Trial # Pulses per Pulse Width (s)     PRI (s)    Detection
           Burst
    1        18               1.0u      1.428m        Yes
    2        18               1.0u      1.428m        Yes
    3        18               1.0u      1.428m         No
    4        18               1.0u      1.428m        Yes
    5        18               1.0u      1.428m        Yes
    6        18               1.0u      1.428m        Yes
    7        18               1.0u      1.428m        Yes
    8        18               1.0u      1.428m        Yes
    9        18               1.0u      1.428m        Yes
   10        18               1.0u      1.428m        Yes
   11        18               1.0u      1.428m        Yes
   12        18               1.0u      1.428m        Yes
   13        18               1.0u      1.428m        Yes
   14        18               1.0u      1.428m        Yes
   15        18               1.0u      1.428m        Yes
   16        18               1.0u      1.428m         No
   17        18               1.0u      1.428m        Yes
   18        18               1.0u      1.428m         No
   19        18               1.0u      1.428m        Yes
   20        18               1.0u      1.428m        Yes
   21        18               1.0u      1.428m        Yes
   22        18               1.0u      1.428m        Yes
   23        18               1.0u      1.428m        Yes
   24        18               1.0u      1.428m        Yes
   25        18               1.0u      1.428m        Yes
   26        18               1.0u      1.428m        Yes
   27        18               1.0u      1.428m        Yes
   28        18               1.0u      1.428m        Yes
   29        18               1.0u      1.428m        Yes
   30        18               1.0u      1.428m        Yes
                                         Detection Rate: 90 %




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6.1.2.3 Non-Occupancy Period

Associated test
 During the 30 minutes observation time, UUT did not make any transmissions on
 a channel after a radar signal was detected on that channel by either the Channel
 Availability Check or the In-Service Monitoring.

IEEE 802.11A




Draft 802.11n(40MHz)




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6.2.1.4 Non-associated test

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.




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7. TESTING LABORATORIES INFORMATION
We, ADT Corp., 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, UL, A2LA
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: 886-2-26051924                             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: 2008-03-18 11:33:25
Document Modified: 2008-03-18 11:33:25

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