SAR Test Report

FCC ID: PPD-AR5BCB-00071

RF Exposure Info

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FCCID_643491

IN ACCORDANCE WITH THE REQUIREMENTS OF FCC REPORT AND ORDER: ET DOCKET 93-62, AND OET BULLETIN 65 SUPPLEMENT C AND RSS-102 ISSUE 1 (PROVISIONAL) SEPTEMBER 25, 1999 FOR 2.4GHz 802.11n CARDBUS MODEL: AR5BCB-00071 FCC ID: PPD-AR5BCB-00071 REPORT NUMBER: 06U10183-5B ISSUE DATE: APRIL 1, 2006 Prepared for ATHEROS COMMUNICATIONS, INC 5480 GREAT AMERICA PARKWAY SANTA CLARA, CA 95054, USA Prepared by COMPLIANCE CERTIFICATION SERVICES 561F MONTEREY ROAD, MORGAN HILL, CA 95037, USA TEL: (408) 463-0885

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 Revision History Rev. Issued date Revisions Revised By -- March 30, 2006 Initial issue HS Additional SAR Tests for alternate housing. New materials are: 1- Simulating liquid parameter check results 2- System performance check results B April 1, 2006 ND 3- SAR measurement results for 2.4GHz 802.11n cardbus with alternate housing 4- Photos 5- Attachments COMPLIANCE CERTIFICATION SERVICES Page: 2 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 CERTIFICATE OF COMPLIANCE (SAR EVALUATION) DATES OF TEST: March 27, 28, 29, and April 1, 2006 APPLICANT: ATHEROS COMMUNICATIONS, INC ADDRESS: 5480 GREAT AMERICA PARKWAY, SANTA CLARA, CA 95054, USA FCC ID: PPD-AR5BCB-00071 MODEL: AR5BCB-00071 DEVICE CATEGORY: Portable Device EXPOSURE CATEGORY: General Population/Uncontrolled Exposure 2.4GHz 802.11n Cardbus is installed in three host laptops. 2.4GHz 802.11n Cardbus has an alternate housing. Test Sample is a: Production unit Modulation type: Direct Sequence Spread Spectrum (DSSS) for 802.11b Orthogonal Frequency Division Multiplexing (OFDM) for 802.11g Orthogonal Frequency Division Multiplexing (OFDM) for 802.11n HT20 Orthogonal Frequency Division Multiplexing (OFDM) for 802.11n HT40 Host Laptops Host 1: Dell Inspiron 6000 Host 2: Compaq Presario V2000 Host 3: HP Pavilion ZV6000 Antenna(s) EUT utilizes two Inverted-F antennas for transmit and receive and one PCB Integrated monopole antenna for receiving only. Rule Parts Frequency Range [MHz] The Highest SAR Values [1g_mW/g] FCC 15.247 2412 - 2462 Host 1: 0.865 RSS102 Host 2: 0.820 Host 3: 0.846 This wireless portable device has been shown to be capable of compliance for localized specific absorption rate (SAR) for General Population/Uncontrolled Exposure limits specified in ANSI/IEEE Std. C95.1-1992 and had been tested in accordance with the measurement procedures specified in FCC OET 65 Supplement C (Edition 01-01). Note: The results documented in this report apply only to the tested sample, under the conditions and modes of operation as described herein. This document may not be altered or revised in any way unless done so by Compliance Certification Services and all revisions are duly noted in the revisions section. Any alteration of this document not carried out by Compliance Certification Services will constitute fraud and shall nullify the document. No part of this report may be used to claim product certification, approval, or endorsement by NVLAP, NIST, or any government agency. Approved & Released For CCS By: Tested By: Hsin Fu Shih Ninous Davoudi Senior Engineer EMC Engineer Compliance Certification Services Compliance Certification Services COMPLIANCE CERTIFICATION SERVICES Page: 3 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 Table Of Contents 1 EQUIOMENT UNDER TEST (EUT) DESCRIPTION..........................................................................5 2 FACILITIES AND ACCREDITATION .................................................................................................5 3 SYSTEM DESCRIPTION...................................................................................................................6 3.1 COMPOSITION OF INGREDIANTS FOR TISSUE SIMULATIG LIQUIDS ................................7 4 SIMULATING LIQUID PARAMETERS CHECK .................................................................................8 4.1 SIMULATING LIQUID PARAMETER CHECK RESULT ............................................................9 5 SYSTEM PERFORMANCE CHECK ................................................................................................ 12 5.1 SYSTEM PERFORMANCE CHECK RESULTS ...................................................................... 13 6 SAR MEASURMENT PROCEDURE ............................................................................................... 14 6.1 DASY4 SAR MEASURMENT PROCEDURE .......................................................................... 15 7 PROCEDURE USED TO ESTABLISH TEST SIGNAL..................................................................... 16 8 SAR RESULTS FOR 2.4GHZ 802.11N CARDBUS ......................................................................... 17 8.1 LAPTOP # 1-DELL INSPIRON 6000 ....................................................................................... 17 8.2 LAPTOP # 2-COMPAQ PRESARIO V2000............................................................................. 19 8.3 LAPTOP # 3-HP PAVALION ZV6000 ...................................................................................... 21 9 SAR RESULTS FOR 2.4GHZ 802.11N CARDBUS WITH ALTERNATE HOUSING........................ 23 9.1 LAPTOP # 1-DELL INSPIRON 6000 ....................................................................................... 23 10 MEASURMENT UNCERTAINTY ..................................................................................................... 25 10.1 MEASURMENT UNCERTAINTY FOR 300 MHZ – 3000 MHZ ................................................ 25 11 EQUIPMENT LIST AND CALIBRATION.......................................................................................... 26 12 EUT PHOTOS ................................................................................................................................. 27 13 ATTACHMENTS.............................................................................................................................. 33 COMPLIANCE CERTIFICATION SERVICES Page: 4 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 1 EQUIOMENT UNDER TEST (EUT) DESCRIPTION The EUT is an 802.11n MIMO transceiver in cardbus form factor. . It has two transmitter chains and three receive chains (2x3 configurations). The 2x3 configuration is implemented with two outside chains (Chain 0 and 2) and the middle chain (chain 1) Rx only. The device may be sold in a 2x2 configuration where the middle receive chain is depopulated. RF TX chains #0 & #2 connect to Inverted-F Antennas for Tx/Rx; RF chain #1 connects to a PCB Antenna for Rx only. The EUT description was changed after testing commenced. All data in this report is applicable to the EUT description documented in Section 1 above. There two housing included in this report, both housings are identical in term of PCB design / layout. The original housing does not incorporate gasket on the top of metal plate and the bottom of PCB. The alternate housing has incorporated gaskets on both positions. The alternate housing is using same plastic and metal material, the alternate housing is litter thicker ( the difference is < 1 mm ) than the original housing. Normal operation: Lap-held position. Accessory: N/A Earphone/Headset Jack: N/A Duty cycle: 99% Host Device(s): Host 1: Dell Inspiron 6000 Host 2: Compaq Presario V2000 Host 3: HP Pavilion ZV6000 Antenna(s) EUT utilizes two Inverted-F antennas for transmit and receive and one PCB Integrated monopole antenna for receiving only. Power supply: Power supplied through the laptop computer (host device). 2 FACILITIES AND ACCREDITATION The test sites and measurement facilities used to collect data are located at 561F Monterey Road, Morgan Hill, California, USA. The sites are constructed in conformance with the requirements of ANSI C63.4, ANSI C63.7 and CISPR Publication 22. All receiving equipment conforms to CISPR Publication 16-1, “Radio Interference Measuring Apparatus and Measurement Methods.” CCS is accredited by NVLAP, Laboratory Code 200065-0. The full scope of accreditation can be viewed at http://www.ccsemc.com. No part of this report may be used to claim product certification, approval, or endorsement by NVLAP, NIST, or any government agency. COMPLIANCE CERTIFICATION SERVICES Page: 5 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 3 SYSTEM DESCRIPTION The DASY4 system for performing compliance tests consists of the following items: • A standard high precision 6-axis robot (Stäubli RX family) with controller, teach pendant and software. An arm extension for accommodating the data acquisition electronics (DAE). • A dosimetric probe, i.e., an isotropic E-field probe optimized and calibrated for usage in tissue simulating liquid. The probe is equipped with an optical surface detector system. • A data acquisition electronics (DAE) which performs the signal amplification, signal multiplexing, AD-conversion, offset measurements, mechanical surface detection, collision detection, etc. The unit is battery powered with standard or rechargeable batteries. The signal is optically transmitted to the EOC. • The function of the measurement server is to perform the time critical tasks such as signal filtering, control of the robot operation and fast movement interrupts. • A probe alignment unit which improves the (absolute) accuracy of the probe positioning. • A computer operating Windows 2000 or Windows XP. • DASY4 software. • Remote controls with teach pendant and additional circuitry for robot safety such as warning lamps, etc. • The SAM twin phantom enabling testing left-hand and right-hand usage. • The device holder for handheld mobile phones. • Tissue simulating liquid mixed according to the given recipes. • Validation dipole kits allowing to validate the proper functioning of the system. COMPLIANCE CERTIFICATION SERVICES Page: 6 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 3.1 COMPOSITION OF INGREDIANTS FOR TISSUE SIMULATIG LIQUIDS The following tissue formulations are provided for reference only as some of the parameters have not been thoroughly verified. The composition of ingredients may be modified accordingly to achieve the desired target tissue parameters required for routine SAR evaluation. Ingredients Frequency (MHz) (% by weight) 450 835 915 1900 2450 Tissue Type Head Body Head Body Head Body Head Body Head Body Water 38.56 51.16 41.45 52.4 41.05 56.0 54.9 40.4 62.7 73.2 Salt (NaCl) 3.95 1.49 1.45 1.4 1.35 0.76 0.18 0.5 0.5 0.04 Sugar 56.32 46.78 56.0 45.0 56.5 41.76 0.0 58.0 0.0 0.0 HEC 0.98 0.52 1.0 1.0 1.0 1.21 0.0 1.0 0.0 0.0 Bactericide 0.19 0.05 0.1 0.1 0.1 0.27 0.0 0.1 0.0 0.0 Triton X-100 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 36.8 0.0 DGBE 0.0 0.0 0.0 0.0 0.0 0.0 44.92 0.0 0.0 26.7 Dielectric Constant 43.42 58.0 42.54 56.1 42.0 56.8 39.9 54.0 39.8 52.5 Conductivity (S/m) 0.85 0.83 0.91 0.95 1.0 1.07 1.42 1.45 1.88 1.78 Salt: 99+% Pure Sodium Chloride Sugar: 98+% Pure Sucrose Water: De-ionized, 16 MΩ+ resistivity HEC: Hydroxyethyl Cellulose DGBE: 99+% Di(ethylene glycol) butyl ether, [2-(2-butoxyethoxy)ethanol] Triton X-100 (ultra pure): Polyethylene glycol mono [4-(1,1, 3, 3-tetramethylbutyl)phenyl]ether COMPLIANCE CERTIFICATION SERVICES Page: 7 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 4 SIMULATING LIQUID PARAMETERS CHECK The simulating liquids should be checked at the beginning of a series of SAR measurements to determine of the dielectric parameters are within the tolerances of the specified target values. The relative permittivity and conductivity of the tissue material should be within ± 5% of the values given in the table below. Dielectric Probe Network Analyzer Personal Computer Set-up for liquid parameters check Reference Values of Tissue Dielectric Parameters for Head and Body Phantom (for 150 – 3000 MHz and 5800 MHz) The head tissue dielectric parameters recommended by the IEEE SCC-34/SC-2 in IEEE Standard 1528 have been incorporated in the following table. These head parameters are derived from planar layer models simulating the highest expected SAR for the dielectric properties and tissue thickness variations in a human head. Other head and body tissue parameters that have not been specified in P1528 are derived from the tissue dielectric parameters computed from the 4-Cole-Cole equations and extrapolated according to the head parameters specified in IEEE Standard 1528. Head Body Target Frequency (MHz) εr σ (S/m) εr σ (S/m) 150 52.3 0.76 61.9 0.80 300 45.3 0.87 58.2 0.92 450 43.5 0.87 56.7 0.94 835 41.5 0.90 55.2 0.97 900 41.5 0.97 55.0 1.05 915 41.5 0.98 55.0 1.06 1450 40.5 1.20 54.0 1.30 1610 40.3 1.29 53.8 1.40 1800 – 2000 40.0 1.40 53.3 1.52 2450 39.2 1.80 52.7 1.95 3000 38.5 2.40 52.0 2.73 5800 35.3 5.27 48.2 6.00 (εr = relative permittivity, σ = conductivity and ρ = 1000 kg/m3) COMPLIANCE CERTIFICATION SERVICES Page: 8 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 4.1 SIMULATING LIQUID PARAMETER CHECK RESULT Simulating Liquid Dielectric Parameter Check Result @ Muscle 2450 MHz Room Ambient Temperature = 23°C; Relative humidity = 40% Measured by: Ninous Davoudi Simulating Liquid Parameters Target Measured Deviation (%) Limit (%) f (MHz) Temp. (蚓) Depth (cm) e" Relative Permittivity (e'): 52.7 52.4805 -0.42 ?5 2450 22 15 14.7883 Conductivity (σ): 1.95 2.01560 3.36 ?5 Liquid Check Ambient temperature: 23.0 deg. C; Liquid temperature: 22.0 deg C March 28, 2006 09:02 AM Frequency e' e'' 2400000000. 52.6623 14.5911 2410000000. 52.6199 14.6145 2420000000. 52.5871 14.6533 2430000000. 52.5476 14.6975 2440000000. 52.5182 14.7602 2450000000. 52.4805 14.7883 2460000000. 52.4294 14.8462 2470000000. 52.4170 14.8854 2480000000. 52.3735 14.9467 2490000000. 52.3391 14.9929 2500000000. 52.3048 15.0322 The conductivity (σ) can be given as: σ = ωε0 e''= 2 π f ε0 e'' where f = target f * 106 ε0 = 8.854 * 10-12 COMPLIANCE CERTIFICATION SERVICES Page: 9 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 Simulating Liquid Dielectric Parameter Check Result @ Muscle 2450 MHz Room Ambient Temperature = 23°C; Relative humidity = 40% Measured by: Ninous Davoudi Simulating Liquid Parameters Target Measured Deviation (%) Limit (%) f (MHz) Temp. (蚓) Depth (cm) e" Relative Permittivity (e'): 52.7 52.4612 -0.45 ?5 2450 22 15 14.8477 Conductivity (σ): 1.95 2.02369 3.78 ?5 Liquid Check Ambient temperature: 23.0 deg. C; Liquid temperature: 22.0 deg C March 29, 2006 09:06 AM Frequency e' e'' 2400000000. 52.6405 14.6374 2410000000. 52.6028 14.6704 2420000000. 52.5667 14.6944 2430000000. 52.5354 14.7628 2440000000. 52.5043 14.7971 2450000000. 52.4612 14.8477 2460000000. 52.4203 14.8809 2470000000. 52.3967 14.9349 2480000000. 52.3533 14.9961 2490000000. 52.3176 15.0443 2500000000. 52.2890 15.0877 The conductivity (σ) can be given as: σ = ωε0 e''= 2 π f ε0 e'' where f = target f * 106 ε0 = 8.854 * 10-12 COMPLIANCE CERTIFICATION SERVICES Page: 10 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 Simulating Liquid Dielectric Parameter Check Result @ Muscle 2450 MHz Room Ambient Temperature = 23°C; Relative humidity = 35% Measured by: Ninous Davoudi Simulating Liquid Parameters Target Measured Deviation (%) Limit (%) f (MHz) Temp. (蚓) Depth (cm) e" Relative Permittivity (e'): 52.7 50.3297 -4.50 ?5 2450 22 15 14.6315 Conductivity (σ): 1.95 1.99422 2.27 ?5 Liquid Check Ambient temperature: 23.0 deg. C; Liquid temperature: 22.0 deg C April 01, 2006 08:17 AM Frequency e' e'' 2400000000. 50.5207 14.4139 2410000000. 50.4834 14.4407 2420000000. 50.4347 14.4780 2430000000. 50.4142 14.5255 2440000000. 50.3722 14.5779 2450000000. 50.3297 14.6315 2460000000. 50.2869 14.6537 2470000000. 50.2544 14.7040 2480000000. 50.2322 14.7495 2490000000. 50.1857 14.8038 2500000000. 50.1431 14.8539 The conductivity (σ) can be given as: σ = ωε0 e''= 2 π f ε0 e'' where f = target f * 106 ε0 = 8.854 * 10-12 COMPLIANCE CERTIFICATION SERVICES Page: 11 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 5 SYSTEM PERFORMANCE CHECK The system performance check is performed prior to any usage of the system in order to guarantee reproducible results. The system performance check verifies that the system operates within its specifications of ±10%. System Performance Check Measurement Conditions • The measurements were performed in the flat section of the SAM twin phantom filled with Body simulating liquid of the following parameters. • The DASY4 system with an Isotropic E-Field Probe EX3DV3-SN: 3531 was used for the measurements. • The dipole was mounted on the small tripod so that the dipole feed point was positioned below the center marking of the flat phantom section and the dipole was oriented parallel to the body axis (the long side of the phantom). The standard measuring distance was 10 mm (above 1 GHz) and 15 mm (below 1 GHz) from dipole center to the simulating liquid surface. • The coarse grid with a grid spacing of 15 mm was aligned with the dipole. For 5 GHz band - The coarse grid with a grid spacing of 10 mm was aligned with the dipole. • Special 5 x 5 x 7 fine cube was chosen for cube integration(dx=dy=7.5mm; dz=5mm). For 5 GHz band - Special 8x8x8 fine cube was chosen for cube integration(dx=dy=4.3mm; dz=3mm) • Distance between probe sensors and phantom surface was set to 4 mm. For 5 GHz band - Distance between probe sensors and phantom surface was set to 2.0mm • The dipole input power (forward power) was 250 mW±3%. • The results are normalized to 1 W input power. Reference SAR Values for body-tissue In the table below, the numerical reference SAR values of a SPEAG validation dipoles placed below the flat phantom filled with body-tissue simulating liquid are given. The reference SAR values were calculated using the finite-difference time-domain method and the geometry parameters. Distance Frequency SAR (1g) SAR (10g) SAR (peak) Dipole Type (mm) (MHz) [W/kg] [W/kg] [W/kg] D450V2 15 450 5.01 3.36 7.22 D835V2 15 835 9.71 6.38 14.1 D900V2 15 900 11.1 7.17 16.3 D1450V2 10 1450 29.6 16.6 49.8 D1800V2 10 1800 38.5 20.3 67.5 D1900V2 10 1900 39.8 20.8 69.6 D2000V2 10 2000 40.9 21.2 71.5 D2450V2 10 2450 51.2 23.7 97.6 Note: All SAR values normalized to 1 W forward power. COMPLIANCE CERTIFICATION SERVICES Page: 12 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 5.1 SYSTEM PERFORMANCE CHECK RESULTS System Validation Dipole: D2450V2 SN: 748 Date: March 28, 2006 Ambient Temperature = 23°C; Relative humidity = 40% Measured by: Ninous Davoudi B o d y S im u la tin g L iq u id M ra s u re d T a rg e t_ 1 g D e v ia tio n [% ] L im it [% ] f (M H z ) T e m p . [蚓 ] D e p th [c m ] 1g N o rm a liz e d to 1 W 1 2 .4 0 4 9 .6 5 1 .2 -3 .1 3 ? 10 2450 22 15 10g N o rm a liz e d to 1 W T a rg e t_ 1 0 g D e v ia tio n [% ] L im it [% ] 5 .6 7 2 2 .6 8 2 3 .7 -4 .3 0 ? 10 System Validation Dipole: D2450V2 SN: 748 Date: March 29, 2006 Ambient Temperature = 23°C; Relative humidity = 40% Measured by: Ninous Davoudi B o d y S im u la tin g L iq u id M ra s u re d T a rg e t_ 1 g D e v ia tio n [% ] L im it [% ] f (M H z ) T e m p . [蚓 ] D e p th [c m ] 1g N o rm a liz e d to 1 W 1 2 .9 0 5 1 .6 5 1 .2 0 .7 8 ? 10 2450 22 15 10g N o rm a liz e d to 1 W T a rg e t_ 1 0 g D e v ia tio n [% ] L im it [% ] 5 .8 5 2 3 .4 2 3 .7 -1 .2 7 ? 10 System Validation Dipole: D2450V2 SN: 748 Date: April 1, 2006 Ambient Temperature = 23°C; Relative humidity = 35% Measured by: Ninous Davoudi B o d y S im u la tin g L iq u id M ra s u re d T a rg e t_ 1 g D e v ia tio n [% ] L im it [% ] f (M H z ) T e m p . [蚓 ] D e p th [c m ] 1g N o rm a liz e d to 1 W 1 2 .9 0 5 1 .6 5 1 .2 0 .7 8 ? 10 2450 22 15 10g N o rm a liz e d to 1 W T a rg e t_ 1 0 g D e v ia tio n [% ] L im it [% ] 5 .8 9 2 3 .5 6 2 3 .7 -0 .5 9 ? 10 COMPLIANCE CERTIFICATION SERVICES Page: 13 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 6 SAR MEASURMENT PROCEDURE A summary of the procedure follows: a) A measurement of the SAR value at a fixed location is used as a reference value for assessing the power drop of the EUT. The SAR at this point is measured at the start of the test, and then again at the end of the test. b) The SAR distribution at the exposed flat section of the flat phantom is measured at a distance of 4 mm from the inner surface of the shell. The area covers the entire dimension of the EUT and the horizontal grid spacing is 15 mm x 15 mm. Based on this data, the area of the maximum absorption is determined by Spline interpolation. The first Area Scan covers the entire dimension of the EUT to ensure that the hotspot was correctly identified. For 5 GHz band - The SAR distribution at the exposed flat section of the flat phantom is measured at a distance of 2.0 mm from the inner surface of the shell. The area covers the entire dimension of the EUT and the horizontal grid spacing is 10 mm x 10 mm. Based on this data, the area of the maximum absorption is determined by Spline interpolation. The first Area Scan covers the entire dimension of the EUT to ensure that the hotspot was correctly identified. c) Around this point, a volume of X=Y= 30 and Z=21 mm is assessed by measuring 5 x 5 x 7 mm points. On the basis of this data set, the spatial peak SAR value is evaluated with the following procedure: For 5 GHz band - Around this point, a volume of X=Y=Z=30 mm is assessed by measuring 8 x 8 x 8 mm points. On the basis of this data set, the spatial peak SAR value is evaluated with the following procedure: (i) The data at the surface are extrapolated, since the centre of the dipoles is 1.2 mm away from the tip of the probe and the distance between the surface and the lowest measuring point is 1.3 mm. The extrapolation is based on a least square algorithm. A polynomial of the fourth order is calculated through the points in z-axes. This polynomial is then used to evaluate the points between the surface and the probe tip. (ii) The maximum interpolated value is searched with a straightforward algorithm. Around this maximum the SAR values averaged over the spatial volumes (1 g and 10 g) are computed using the 3D-Spline interpolation algorithm. The 3D-Spline is composed of three one- dimensional splines with the “Not a knot”- condition (in x, y and z-direction). The volume is integrated with the trapezoidal – algorithm. One thousand points (10 x 10 x 10) are interpolated to calculate the averages. (iii) All neighbouring volumes are evaluated until no neighbouring volume with a higher average value is found. (iv) The SAR value at the same location as in Step (a) is again measured to evaluate the actual power drift. COMPLIANCE CERTIFICATION SERVICES Page: 14 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 6.1 DASY4 SAR MEASURMENT PROCEDURE Step 1: Power Reference Measurement The Power Reference Measurement and Power Drift Measurements are for monitoring the power drift of the device under test in the batch process. The Minimum distance of probe sensors to surface determines the closest measurement point to phantom surface. The minimum distance of probe sensors to surface is 2.1 mm. This distance cannot be smaller than the Distance of sensor calibration points to probe tip as defined in the probe properties (for example, 1.2 mm for an EX3DV3 probe type). Step 2: Area Scan The Area Scan is used as a fast scan in two dimensions to find the area of high field values, before doing a fine measurement around the hot spot. The sophisticated interpolation routines implemented in DASY4 software can find the maximum locations even in relatively coarse grids. When an Area Scan has measured all reachable points, it computes the field maximal found in the scanned area, within a range of the global maximum. The range (in dB) is specified in the standards for compliance testing. For example, a 2 dB range is required in IEEE Standard 1528, EN 50361 and IEC 62209 standards, whereby 3 dB is a requirement when compliance is assessed in accordance with the ARIB standard (Japan). If only one Zoom Scan follows the Area Scan, then only the absolute maximum will be taken as reference. For cases where multiple maximums are detected, the number of Zoom Scans has to be increased accordingly. Step 3: Zoom Scan Zoom Scans are used to assess the peak spatial SAR values within a cubic averaging volume containing 1 g and 10 g of simulated tissue. The Zoom Scan measures 5 x 5 x 7 points within a cube whose base faces are centered on the maxima found in a preceding area scan job within the same procedure. When the measurement is done, the Zoom Scan evaluates the averaged SAR for 1 g and 10 g and displays these values next to the job’s label. For 5 GHz band – Same as above except the Zoom Scan measures 8 x 8 x 8 points. Step 4: Power drift measurement The Power Drift Measurement measures the field at the same location as the most recent power reference measurement within the same procedure, and with the same settings. The Power Drift Measurement gives the field difference in dB from the reading conducted within the last Power Reference Measurement. This allows a user to monitor the power drift of the device under test within a batch process. The measurement procedure is the same as Step 1. Step 5: Z-Scan The Z Scan measures points along a vertical straight line. The line runs along the Z-axis of a one- dimensional grid. In order to get a reasonable extrapolation, the extrapolated distance should not be larger than the step size in Z-direction. COMPLIANCE CERTIFICATION SERVICES Page: 15 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 7 PROCEDURE USED TO ESTABLISH TEST SIGNAL The following procedures had been used to prepare the EUT for the SAR test. The client provided a special driver and program, Art, v0_1_b2, which enables a user to control the frequency and output power of the module. The settings for the power are controlled by PCDAC menu option in Art program. The cable assembly insertion loss of 21.95dB (including 20.55dB pad and 1.4dB for cable connector) was entered as an offset in the power meter to allow for direct reading of power. b mode 1 Mbs Channel Frequency Chain 0 Average Chain 2 Average (MHz) Power (dBm) power (dBm) Low 2412 21.19 21.98 Middle 2437 21.91 21.96 High 2462 19.62 19.63 g mode 6 Mbs Channel Frequency Chain 0 Average Chain 2 Average (MHz) Power (dBm) power (dBm) Low 2412 17.57 18.18 Middle 2437 20.94 20.79 High 2462 18.60 18.33 HT20 mode 6.5 Mbs Channel Frequency Chain 0 Average Chain 2 Average (MHz) Power (dBm) power (dBm) Low 2412 17.02 17.95 Middle 2437 21.07 21.02 High 2462 18.78 18.56 HT40 mode 13.5 Mbs Channel Frequency Chain 0 Average Chain 2 Average (MHz) Power (dBm) power (dBm) Low 2422 15.32 16.32 Middle 2437 19.93 20.17 High 2452 17.43 17.66 COMPLIANCE CERTIFICATION SERVICES Page: 16 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 8 SAR RESULTS FOR 2.4GHZ 802.11N CARDBUS 8.1 LAPTOP # 1-DELL INSPIRON 6000 802.11b (1Mbps) 1) Measured SAR Power Drift Extrapolated SAR Channel f (MHz) 1g (mW/g) (dBm) 1g (mW/g) 1 2412 0.266 0.000 0.266 6 2437 0.857 -0.040 0.865 11 2462 0.571 0.000 0.571 3) 6 2437 0.545 0.000 0.545 4) 6 2437 0.353 0.000 0.353 802.11g (6 Mbps) 1) Measured SAR Power Drift Extrapolated SAR Channel f (MHz) 1g (mW/g) (dBm) 1g (mW/g) 1 2412 0.189 -0.113 0.194 6 2437 0.408 -0.174 0.425 11 2462 0.310 0.000 0.310 Notes: 1) The exact method of extrapolation is Measured SAR x 10^(-drift/10). The SAR reported at the end of the measurement process by the DASY4 system can be scaled up by the Power drift to determine the SAR at the beginning of the measurement process. 2) Please see attachments for the detailed measurement data and plots showing the maximum SAR location of the EUT. 3) Power Save Mode when only chain0 is operational. For normal mode, both chain0 and chain2 are operational. 4) Power Save Mode when only chain2 is operational. For normal mode, both chain0 and chain2 are operational. COMPLIANCE CERTIFICATION SERVICES Page: 17 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 802.11g MIMO 20MHz Operation (6.5 Mbps) 1) Measured SAR Power Drift Extrapolated SAR Channel f (MHz) 1g (mW/g) (dBm) 1g (mW/g) 1 2412 0.198 0.000 0.198 6 2437 0.428 -0.058 0.434 11 2462 0.289 -0.021 0.290 802.11g MIMO 40MHz Operation (13.5 Mbps) 1) Measured SAR Power Drift Extrapolated SAR 3) Channel f (MHz) 1g (mW/g) (dBm) 1g (mW/g) 1, 5 2422 0.139 -0.085 0.142 4, 8 2437 0.395 -0.021 0.397 7, 11 2452 0.251 0.000 0.251 Notes: 1) The exact method of extrapolation is Measured SAR x 10^(-drift/10). The SAR reported at the end of the measurement process by the DASY4 system can be scaled up by the Power drift to determine the SAR at the beginning of the measurement process. 2) Please see attachments for the detailed measurement data and plots showing the maximum SAR location of the EUT. 3) Channel numbers of control & extension channels. COMPLIANCE CERTIFICATION SERVICES Page: 18 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 8.2 LAPTOP # 2-COMPAQ PRESARIO V2000 802.11b (1Mbps) 1) Measured SAR Power Drift Extrapolated SAR Channel f (MHz) 1g (mW/g) (dBm) 1g (mW/g) 1 2412 0.513 -0.082 0.523 6 2437 0.793 -0.148 0.820 11 2462 0.404 -0.069 0.410 4) 6 2437 0.379 0.000 0.379 5) 6 2437 0.265 0.000 0.265 802.11g (6 Mbps) 1) Measured SAR Power Drift Extrapolated SAR Channel f (MHz) 1g (mW/g) (dBm) 1g (mW/g) 1 2412 6 2437 0.411 -0.124 0.423 11 2462 Notes: 1) The exact method of extrapolation is Measured SAR x 10^(-drift/10). The SAR reported at the end of the measurement process by the DASY4 system can be scaled up by the Power drift to determine the SAR at the beginning of the measurement process. 2) The SAR measured at the middle channel for this configuration is at least 3 dB lower (0.8 mW/g) than SAR limit (1.6 mW/g), thus testing at low & high channel is optional. 3) Please see attachments for the detailed measurement data and plots showing the maximum SAR location of the EUT. 4) Power Save Mode when only chain0 is operational. For normal mode, both chain0 and chain2 are operational. 5) Power Save Mode when only chain2 is operational. For normal mode, both chain0 and chain2 are operational. COMPLIANCE CERTIFICATION SERVICES Page: 19 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 802.11g MIMO 20MHz Operation (6.5 Mbps) 1) Measured SAR Power Drift Extrapolated SAR Channel f (MHz) 1g (mW/g) (dBm) 1g (mW/g) 1 2412 6 2437 0.460 -0.104 0.471 11 2462 802.11g MIMO 40MHz Operation (13.5 Mbps) 1) Measured SAR Power Drift Extrapolated SAR 4) Channel f (MHz) 1g (mW/g) (dBm) 1g (mW/g) 1, 5 2422 4, 8 2437 0.330 -0.159 0.342 7, 11 2452 Notes: 1) The exact method of extrapolation is Measured SAR x 10^(-drift/10). The SAR reported at the end of the measurement process by the DASY4 system can be scaled up by the Power drift to determine the SAR at the beginning of the measurement process. 2) The SAR measured at the middle channel for this configuration is at least 3 dB lower (0.8 mW/g) than SAR limit (1.6 mW/g), thus testing at low & high channel is optional. 3) Please see attachments for the detailed measurement data and plots showing the maximum SAR location of the EUT. 4) Channel numbers of control & extension channels. COMPLIANCE CERTIFICATION SERVICES Page: 20 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 8.3 LAPTOP # 3-HP PAVALION ZV6000 802.11b (1Mbps) 1) Measured SAR Power Drift Extrapolated SAR Channel f (MHz) 1g (mW/g) (dBm) 1g (mW/g) 1 2412 0.757 0.000 0.757 6 2437 0.846 0.000 0.846 11 2462 0.771 0.000 0.771 4) 6 2437 0.475 0.000 0.475 5) 6 2437 0.301 0.000 0.301 802.11g (6 Mbps) 1) Measured SAR Power Drift Extrapolated SAR Channel f (MHz) 1g (mW/g) (dBm) 1g (mW/g) 1 2412 6 2437 0.479 -0.037 0.483 11 2462 Notes: 1) The exact method of extrapolation is Measured SAR x 10^(-drift/10). The SAR reported at the end of the measurement process by the DASY4 system can be scaled up by the Power drift to determine the SAR at the beginning of the measurement process. 2) The SAR measured at the middle channel for this configuration is at least 3 dB lower (0.8 mW/g) than SAR limit (1.6 mW/g), thus testing at low & high channel is optional. 3) Please see attachments for the detailed measurement data and plots showing the maximum SAR location of the EUT. 4) Power Save Mode when only chain0 is operational. For normal mode, both chain0 and chain2 are operational. 5) Power Save Mode when only chain2 is operational. For normal mode, both chain0 and chain2 are operational. COMPLIANCE CERTIFICATION SERVICES Page: 21 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 802.11g MIMO 20MHz Operation (6.5 Mbps) 1) Measured SAR Power Drift Extrapolated SAR Channel f (MHz) 1g (mW/g) (dBm) 1g (mW/g) 1 2412 6 2437 0.489 -0.054 0.495 11 2462 802.11g MIMO 40MHz Operation (13.5 Mbps) 1) Measured SAR Power Drift Extrapolated SAR 4) Channel f (MHz) 1g (mW/g) (dBm) 1g (mW/g) 1,5 2422 4,8 2437 0.400 -0.0707 0.407 7,11 2452 Notes: 1) The exact method of extrapolation is Measured SAR x 10^(-drift/10). The SAR reported at the end of the measurement process by the DASY4 system can be scaled up by the Power drift to determine the SAR at the beginning of the measurement process. 2) The SAR measured at the middle channel for this configuration is at least 3 dB lower (0.8 mW/g) than SAR limit (1.6 mW/g), thus testing at low & high channel is optional. 3) Please see attachments for the detailed measurement data and plots showing the maximum SAR location of the EUT. 4) Channel numbers of control & extension channels. COMPLIANCE CERTIFICATION SERVICES Page: 22 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 9 SAR RESULTS FOR 2.4GHZ 802.11N CARDBUS WITH ALTERNATE HOUSING 9.1 LAPTOP # 1-DELL INSPIRON 6000 802.11b (1Mbps) 1) Measured SAR Power Drift Extrapolated SAR Channel f (MHz) 1g (mW/g) (dBm) 1g (mW/g) 1 2412 0.534 -0.196 0.559 6 2437 0.747 -0.208 0.784 11 2462 0.531 -0.151 0.550 3) 6 2437 0.438 0.000 0.438 4) 6 2437 0.410 -0.030 0.413 802.11g (6 Mbps) 1) Measured SAR Power Drift Extrapolated SAR Channel f (MHz) 1g (mW/g) (dBm) 1g (mW/g) 1 2412 6 2437 0.348 -0.039 0.351 11 2462 Notes: 1) The exact method of extrapolation is Measured SAR x 10^(-drift/10). The SAR reported at the end of the measurement process by the DASY4 system can be scaled up by the Power drift to determine the SAR at the beginning of the measurement process. 2) Please see attachments for the detailed measurement data and plots showing the maximum SAR location of the EUT. 3) Power Save Mode when only chain0 is operational. For normal mode, both chain0 and chain2 are operational. 4) Power Save Mode when only chain2 is operational. For normal mode, both chain0 and chain2 are operational. COMPLIANCE CERTIFICATION SERVICES Page: 23 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 802.11g MIMO 20MHz Operation (6.5 Mbps) 1) Measured SAR Power Drift Extrapolated SAR Channel f (MHz) 1g (mW/g) (dBm) 1g (mW/g) 1 2412 6 2437 0.451 -0.193 0.471 11 2462 802.11g MIMO 40MHz Operation (13.5 Mbps) 1) Measured SAR Power Drift Extrapolated SAR 3) Channel f (MHz) 1g (mW/g) (dBm) 1g (mW/g) 1, 5 2422 4, 8 2437 0.285 -0.073 0.290 7, 11 2452 Notes: 1) The exact method of extrapolation is Measured SAR x 10^(-drift/10). The SAR reported at the end of the measurement process by the DASY4 system can be scaled up by the Power drift to determine the SAR at the beginning of the measurement process. 2) Please see attachments for the detailed measurement data and plots showing the maximum SAR location of the EUT. 3) Channel numbers of control & extension channels. COMPLIANCE CERTIFICATION SERVICES Page: 24 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 10 MEASURMENT UNCERTAINTY 10.1 MEASURMENT UNCERTAINTY FOR 300 MHz – 3000 MHz Probe Std. Unc.(? ) Uncertainty component Tol. (? ) Div. Ci (1g) Ci (10g) Dist. Ui (1g) Ui(10g) Measurement System Probe Calibration 4.80 N 1 1 1 4.80 4.80 Axial Isotropy 4.70 R 1.732 0.707 0.707 1.92 1.92 Hemispherical Isotropy 9.60 R 1.732 0.707 0.707 3.92 3.92 Boundary Effects 1.00 R 1.732 1 1 0.58 0.58 Linearity 4.70 R 1.732 1 1 2.71 2.71 System Detection Limits 1.00 R 1.732 1 1 0.58 0.58 Readout Electronics 1.00 N 1 1 1 1.00 1.00 Response Time 0.80 R 1.732 1 1 0.46 0.46 Integration Time 2.60 R 1.732 1 1 1.50 1.50 RF Ambient Conditions - Noise 1.59 R 1.732 1 1 0.92 0.92 RF Ambient Conditions - Reflections 0.00 R 1.732 1 1 0.00 0.00 Probe Positioner Mechnical Tolerance 0.40 R 1.732 1 1 0.23 0.23 Probe Positioning With Respect to Phantom Shell 2.90 R 1.732 1 1 1.67 1.67 Extrapolation, interpolation, and integration algorithms for max. SAR evaluation 3.90 R 1.732 1 1 2.25 2.25 Test sample Related Test Sample Positioning 1.10 N 1 1 1 1.10 1.10 Device Holder Uncertainty 3.60 N 1 1 1 3.60 3.60 Power and SAR Drift Measurement 5.00 R 1.732 1 1 2.89 2.89 Phantom and Tissue Parameters Phantom Uncertainty 4.00 R 1.732 1 1 2.31 2.31 Liquid Conductivity - Target 5.00 R 1.732 0.64 0.43 1.85 1.24 Liquid Conductivity - Meas. 8.60 N 1 0.64 0.43 5.50 3.70 Liquid Permittivity - Target 5.00 R 1.732 0.6 0.49 1.73 1.41 Liquid Permittivity - Meas. 3.30 N 1 0.6 0.49 1.98 1.62 Combined Standard Uncertainty RSS 11.44 10.49 Expanded Uncertainty (95% Confidence Interval) K=2 22.87 20.98 Notesfor table 1. Tol. - tolerance in influence quaitity 2. N - Nomal 3. R - Rectangular 4. Div. - Divisor used to obtain standard uncertainty 5. Ci - is te sensitivity coefficient COMPLIANCE CERTIFICATION SERVICES Page: 25 of 33 This report shall not be reproduced except in full, without the written approval of CCS.

REPORT NO: 06U10183-5B DATE: April 1, 2006 FCC ID: PPD-AR5BCB-00071 11 EQUIPMENT LIST AND CALIBRATION Name of Equipment Manufacturer Type/Model Serial Number Cal. Due date Robot - Six Axes Stäubli RX90BL N/A N/A Robot Remote Control Stäubli CS7MB 3403-91535 N/A DASY4 Measurement Server SPEAG SEUMS001BA 1041 N/A Probe Alignment Unit SPEAG LB (V2) 261 N/A S-Parameter Network Analyzer Agilent 8753ES-6 US39173569 2/9/07 Electronic Probe kit Hewlett Packard 85070C N/A N/A E-Field Probe SPEAG EX3DV3 3531 7/21/06 Thermometer ERTCO 639-1 8636 10/20/06 SAM Phantom (SAM1) SPEAG TP-1185 QD000P40CA N/A SAM Phantom (SAM2) SPEAG TP-1015 N/A N/A Data Acquisition Electronics SPEAG DAE4 558 1/20/07 System Validation Dipole SPEAG D2450V2 748 5/14/06 Power Meter Giga-tronics 8651A 8651404 12/27/06 Power Sensor Giga-tronics 80701A 1834588 12/27/07 Amplifier Mini-Circuits ZHL-42W D072701-5 N/A Radio Communication Tester Rohde & Schwarz CMU 200 838114/032 12/17/06 Simulating Liquid CCS M2450 N/A Within 24 hrs of first test COMPLIANCE CERTIFICATION SERVICES Page: 26 of 33 This report shall not be reproduced except in full, without the written approval of CCS.


Document Created: 2006-04-03 14:29:19
Document Modified: 2006-04-03 14:29:19
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