Test Report 247 Part 2

FCC ID: H8NWLL4070

Test Report

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FCCID_524476

FCC ID: H8NWLL4070



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 & Manufacturer            Model No.         Serial No.        Calibrated Until

R&S SPECTRUM ANALYZER                   FSEK30             100049            Aug. 12, 2005

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




4.6.3 TEST PROCEDURE

The transmitter output was connected to the spectrum analyzer via a low lose cable.
Set both RBW and VBW of spectrum analyzer to 100kHz with suitable frequency
span including 100 MHz bandwidth from band edge. The band edges was
measured and recorded.


The spectrum plots (Peak RBW=VBW=100kHz ; Average RBW=1MHz, VBW=10Hz)
are attached on the following pages.

4.6.4 DEVIATION FROM TEST STANDARD
No deviation

4.6.5 EUT OPERATING CONDITION

Same as Item 4.3.6




Report No.: RF940203L01                          93                           Report Format Version 2.0.2


FCC ID: H8NWLL4070




4.6.6 TEST RESULTS

The spectrum plots are attached on the following 18 images. D2 line indicates the
highest level, and D1 line indicates the 20dB offset below D2. It shows compliance
with the requirement in part 15.247(d).

802.11b DSSS modulation
NOTE 1: The band edge emission plot on page 97 shows 52.86dBc between carrier
maximum power and local maximum emission in restrict band (2.3886GHz). The
emission of carrier strength list in the test result of channel 1 at the item 4.2.7 is
112.63dBuV/m (Peak), so the maximum field strength in restrict band is 112.63-
52.86=59.77dBuV/m which is under 74dBuV/m limit..

The band edge emission plot of on page 97 shows 61.88dBc between carrier
maximum power and local maximum emission in restrict band (2.3710GHz). The
emission of carrier strength list in the test result of channel 1 at the item 4.2.7 is
104.83dBuV/m (Average), so the maximum field strength in restrict band is 104.83-
61.88=42.95dBuV/m which is under 54dBuV/m limit.

NOTE 2: The band edge emission plot on page 98 shows 54.70dBc between carrier
maximum power and local maximum emission in restrict band (2.4866GHz). The
emission of carrier strength list in the test result of channel 11 at the item 4.2.7 is
112.52dBuV/m (Peak), so the maximum field strength in restrict band is 112.52-
54.70=57.82dBuV/m which is under 74dBuV/m limit.

The band edge emission plot on page 99 shows 62.15dBc between carrier
maximum power and local maximum emission in restrict band (2.5000GHz). The
emission of carrier strength list in the test result of channel 11 at the item 4.2.7 is
105.13dBuV/m (Average), so the maximum field strength in restrict band is 105.13-
62.15=42.98dBuV/m which is under 54dBuV/m limit.




Report No.: RF940203L01                    94                        Report Format Version 2.0.2


FCC ID: H8NWLL4070


802.11g OFDM modulation
NOTE 1: The band edge emission plot on page 100 shows 46.58dBc between carrier
maximum power and local maximum emission in restrict band (2.3900GHz). The
emission of carrier strength list in the test result of channel 1 at the item 4.2.7 is
109.84dBuV/m (Peak), so the maximum field strength in restrict band is 109.84-
46.58=63.26dBuV/m which is under 74dBuV/m limit.

The band edge emission plot of on page 100 shows 50.13dBc between carrier
maximum power and local maximum emission in restrict band (2.3900GHz). The
emission of carrier strength list in the test result of channel 1 at the item 4.2.7 is
99.93dBuV/m (Average), so the maximum field strength in restrict band is 99.93-
50.13=49.80dBuV/m which is under 54dBuV/m limit.


NOTE 2: The band edge emission plot on page 101 shows 46.02dBc between
carrier maximum power and local maximum emission in restrict band (2.4835GHz).
The emission of carrier strength list in the test result of channel 11 at the item 4.2.7
is 109.97dBuV/m (Peak), so the maximum field strength in restrict band is 109.97-
46.02=63.95dBuV/m which is under 74dBuV/m limit.

The band edge emission plot on page 102 shows 49.91dBc between carrier
maximum power and local maximum emission in restrict band (2.4835GHz). The
emission of carrier strength list in the test result of channel 11 at the item 4.2.7 is
99.49dBuV/m (Average), so the maximum field strength in restrict band is 99.49-
49.91=49.58dBuV/m which is under 54dBuV/m limit.




Report No.: RF940203L01                     95                        Report Format Version 2.0.2


FCC ID: H8NWLL4070



802.11g Turbo OFDM modulation
NOTE 1: The band edge emission plot on page 103 shows 48.65dBc between
carrier maximum power and local maximum emission in restrict band (2.3900GHz).
The emission of carrier strength list in the test result of channel 6 at the item 4.2.7 is
107.46dBuV/m (Peak), so the maximum field strength in restrict band is 107.46-
48.65=58.81dBuV/m which is under 74dBuV/m limit.

The band edge emission plot of on page 103 shows 47.07dBc between carrier
maximum power and local maximum emission in restrict band (2.3900GHz). The
emission of carrier strength list in the test result of channel 6 at the item 4.2.7 is
98.45dBuV/m (Average), so the maximum field strength in restrict band is 98.45-
47.07=51.38dBuV/m which is under 54dBuV/m limit.

NOTE 2: The band edge emission plot on page 104 shows 48.83dBc between
carrier maximum power and local maximum emission in restrict band (2.4838GHz).
The emission of carrier strength list in the test result of channel 6 at the item 4.2.7 is
107.46dBuV/m (Peak), so the maximum field strength in restrict band is 107.46-
48.83=58.63dBuV/m which is under 74dBuV/m limit.

The band edge emission plot on page 105 shows 48.02dBc between carrier
maximum power and local maximum emission in restrict band (2.4835GHz). The
emission of carrier strength list in the test result of channel 6 at the item 4.2.7 is
98.45dBuV/m (Average), so the maximum field strength in restrict band is 98.45-
48.02=50.43dBuV/m which is under 54dBuV/m limit.




Report No.: RF940203L01                     96                         Report Format Version 2.0.2


FCC ID: H8NWLL4070


802.11b DSSS modulation




Report No.: RF940203L01   97   Report Format Version 2.0.2


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Report No.: RF940203L01   100   Report Format Version 2.0.2


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Report No.: RF940203L01         103   Report Format Version 2.0.2


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4.7     ANTENNA REQUIREMENT


4.7.1 STANDARD APPLICABLE

For intentional device, according to FCC 47 CFR Section 15.203, an intentional
radiator shall be designed to ensure that no antenna other than that furnished by
the responsible party shall be used with the device. And according to FCC 47 CFR
Section 15.247 (b), if transmitting antennas of directional gain greater than 6dBi are
used, the power shall be reduced by the amount in dB that the directional gain of
the antenna exceeds 6dBi.


4.7.2 ANTENNA CONNECTED CONSTRUCTION

The antennas used in this product are Inverted F and Monopole antenna with UFL
connector. The maximum Gain of the antenna is 2.85dBi.




Report No.: RF940203L01                   106                      Report Format Version 2.0.2



Document Created: 2005-03-15 11:32:36
Document Modified: 2005-03-15 11:32:36

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