Test Report Part3

FCC ID: KA2WA552A1

Test Report

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FCCID_701692

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 DRAFT 802.11n (20MHz) OFDM MODULATION: TRIPLE TX:

  MODULATION
                          BPSK                        TRANSFER RATE         7.2Mbps
  TYPE
  INPUT POWER                                         ENVIRONMENTAL         28deg.C, 67%RH,
                          120Vac, 60 Hz
  (SYSTEM)                                            CONDITIONS            991hPa
  TESTED BY               Lori Chiu


                              RF POWER LEVEL IN 3kHz BW            RF POWER LEVEL IN 3kHz BW
          CHANNEL                       (mW)                                (dBm)
 CHANNEL FREQUENCY
            (MHz)            CHAIN 0      CHAIN 1     CHAIN 2     CHAIN 0   CHAIN 1        CHAIN 2

      1           2412        0.043        0.042          0.043    -13.68    -13.76          -13.71

      6           2437        0.077        0.076          0.073    -11.14    -11.22          -11.34

      11          2462        0.039        0.039          0.038    -14.11    -14.12          -14.23



          CHANNEL
                             TOTAL PEAK         TOTAL PEAK        PEAK POWER
 CHANNEL FREQUENCY                                                                    PASS / FAIL
                             POWER (mW)        POWER (dBm)         LIMIT (dBm)
            (MHz)

      1           2412           0.128              -8.928              8                PASS

      6           2437           0.226              -6.459              8                PASS

      11          2462           0.116              -9.355              8                PASS




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 DRAFT 802.11n (40MHz) OFDM MODULATION: TRIPLE TX:

  MODULATION
                          BPSK                        TRANSFER RATE         15Mbps
  TYPE
  INPUT POWER                                         ENVIRONMENTAL         25deg.C, 63%RH,
                          120Vac, 60 Hz
  (SYSTEM)                                            CONDITIONS            991hPa
  TESTED BY               Lori Chiu


                              RF POWER LEVEL IN 3kHz BW            RF POWER LEVEL IN 3kHz BW
          CHANNEL                       (mW)                                (dBm)
 CHANNEL FREQUENCY
            (MHz)            CHAIN 0      CHAIN 1     CHAIN 2     CHAIN 0   CHAIN 1        CHAIN 2

      1           2422        0.009        0.008          0.008    -20.59    -20.83          -20.86

      4           2437        0.018        0.018          0.017    -17.54    -17.55          -17.71

      7           2452        0.009        0.008          0.008    -20.60    -20.78          -20.86



          CHANNEL
                             TOTAL PEAK         TOTAL PEAK        PEAK POWER
 CHANNEL FREQUENCY                                                                    PASS / FAIL
                             POWER (mW)        POWER (dBm)         LIMIT (dBm)
            (MHz)

      1           2422           0.025              -16.020             8                PASS

      4           2437           0.053              -12.757             8                PASS

      7           2452           0.025              -16.020             8                PASS




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4.6 BAND EDGES MEASUREMENT

4.6.1 LIMITS OF BAND EDGES MEASUREMENT

 Below –20dB of the highest emission level of operating band (in 100kHz
 Resolution Bandwidth).


4.6.2 TEST INSTRUMENTS

       DESCRIPTION &
                                   MODEL NO.              SERIAL NO.        CALIBRATED UNTIL
       MANUFACTURER

       R&S SPECTRUM                  FSEK30                 100049              Aug. 14, 2006
         ANALYZER

 NOTE: The calibration interval of the above test instruments is 12 months and the calibrations are
       traceable to NML/ROC and NIST/USA.




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4.6.3 TEST PROCEDURE

a. The EUT was placed on the top of a rotating table 0.8 meters above the ground at
    a 3 meter semi-anechoic chamber. The table was rotated 360 degrees to
    determine the position of the highest radiation.
b. The EUT was set 3 meters away from the interference-receiving antenna, which
    was mounted on the top of a variable-height antenna tower.
c. The antenna is a broadband antenna, and its height is varied from one meter to
    four meters above the ground to determine the maximum value of the field
    strength. Both horizontal and vertical polarizations of the antenna are set to
    make the measurement.
d. For each suspected emission, the EUT was arranged to its worst case and then
    the antenna was tuned to heights from 1 meter to 4 meters and the rotatable
    table was turned from 0 degrees to 360 degrees to find the maximum reading.
e. Set both RBW and VBW of spectrum analyzer to 100kHz with suitable frequency
    span including 100MHz bandwidth from band edge. The band edges was
    measured and recorded.
    The spectrum plots (Peak RBW = VBW = 100kHz; Average RBW = 1MHz, VBW
    = 10Hz)
NOTE: The resolution bandwidth of test receiver/spectrum analyzer is 1 MHz and the video
        bandwidth is 10Hz for Average detection (AV) at frequency above 1GHz.


4.6.4 DEVIATION FROM TEST STANDARD

No deviation


4.6.5 EUT OPERATING CONDITION

Same as Item 4.3.6.




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4.6.6 TEST RESULTS

The spectrum plots are attached on the following 24 images. D1 line indicates the
highest level, and D2 line indicates the 20dB offset below D1. It shows compliance
with the requirement in part 15.247(d).

802.11b DSSS MODULATION:


NOTE 1:

The band edge emission plot of DSSS technique on the next page shows 50.18dBc between
carrier maximum power and local maximum emission in restrict band (2.386400000GHz).
The emission of carrier strength list in the test result of channel 1 at the item 4.2.7 is
116.76dBuV/m (Peak), so the maximum field strength in restrict band is 116.76-
50.18=66.58dBuV/m which is under 74dBuV/m limit.


The band edge emission plot of DSSS technique on the next page shows 59.34dBc between
carrier maximum power and local maximum emission in restrict band (2.390000000GHz).
The emission of carrier strength list in the test result of channel 1 at the item 4.2.7 is
112.14dBuV/m (Average), so the maximum field strength in restrict band is 112.14-
59.34=52.80dBuV/m which is under 54dBuV/m limit.


NOTE 2:

The band edge emission plot of DSSS technique on the next second page shows 51.37dBc
between carrier maximum power and local maximum emission in restrict band
(2.496900000GHz). The emission of carrier strength list in the test result of channel 11 at the
item 4.2.7 is 117.10dBuV/m (Peak), so the maximum field strength in restrict band is 117.10-
51.37=65.73dBuV/m which is under 74dBuV/m limit.


The band edge emission plot of DSSS technique on the next third page shows 59.46dBc
between carrier maximum power and local maximum emission in restrict band
(2.483900000GHz). The emission of carrier strength list in the test result of channel 11 at the
item 4.2.7 is 112.46dBuV/m (Average), so the maximum field strength in restrict band is
112.46-59.46=53.00dBuV/m which is under 54dBuV/m limit.




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Document Created: 2006-09-05 22:35:41
Document Modified: 2006-09-05 22:35:41

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