SAR Report

FCC ID: W2Z-01000001

RF Exposure Info

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Test report No. : 31CE0283-HO-01-C
Page : 2 of 59
Issued date : December 22, 2010
FCC ID : W2Z-01000001

CONTENTS PAGE

SECTION 1: Customer information ....................................................................... 3
SECTION 2: Equipment under test (E.U.T)........................................................... 3
SECTION 3: Test specification, procedures and results ........................................ 4
3.1 Test specification ..................................................................................................... 4
3.2 Exposure limit ......................................................................................................... 4
3.3 Procedure and result ................................................................................................. 4
3.4 Test location ............................................................................................................ 4
3.5 Confirmation before SAR testing ............................................................................. 5
3.6 Confirmation after SAR testing ................................................................................ 6
3.7 Measurement procedure ........................................................................................... 6
3.8 Test setup of EUT .................................................................................................... 6
SECTION 4: Operation of E.U.T. during testing ................................................... 7
4.1 Operating modes for SAR testing ............................................................................. 7
SECTION 5: Uncertainty assessment...................................................................... 8
SECTION 6: Confirmation before testing .............................................................. 9
6.1 Assessment for the conducted power of EUT ............................................................ 9
SECTION 7: Measurement results.......................................................................... 11
7.1 Body SAR ................................................................................................................ 11

Contents of appendixes
APPENDIX 1: Photographs of test setup .................................................................. 12
Appendix 1-1 Photograph of EUT and antenna position ................................................................. 12
Appendix 1-2 Photograph of test setup ........................................................................................... 13
APPENDIX 2: SAR Measurement data .................................................................... 17
Appendix 2-1 Evaluation procedure ............................................................................................... 17
Appendix 2-2 Measurement data .................................................................................................... 18
APPENDIX 3: Test instruments ................................................................................ 30
Appendix 3-1 Equipment used ....................................................................................................... 30
Appendix 3-2 Dosimetry assessment setup ..................................................................................... 31
Appendix 3-3 Configuration and peripherals .................................................................................. 31
Appendix 3-4 System components .................................................................................................. 32
Appendix 3-5 Test system specification .......................................................................................... 33
Appendix 3-6 Simulated tissues composition .................................................................................. 33
Appendix 3-7 Simulated tissues parameter confirmation ................................................................ 34
Appendix 3-8 System validation data ............................................................................................. 34
Appendix 3-9 Validation uncertainty.............................................................................................. 35
Appendix 3-10 Validation measurement data ................................................................................... 36
Appendix 3-11 Calibration certificate: Dipole (D5GHzV2) .............................................................. 38
Appendix 3-12 Calibration certificate: E-Field Probe (EX3DV4) ..................................................... 49
Appendix 3-13 References................................................................................................................ 59

UL Japan, Inc.
Shonan EMC Lab.
1-22-3 Megumigaoka, Hiratsuka-shi, Kanagawa-ken, 259-1220 JAPAN
Telephone: +81 463 50 6400 / Facsimile: +81 463 50 6401

Test report No. : 31CE0283-HO-01-C
Page : 4 of 59
Issued date : December 22, 2010
FCC ID : W2Z-01000001

SECTION 3: Test specification, procedures and results
3.1 Requirements for compliance testing defined by the FCC / Test specification
The US Federal Communications Commission has released the report and order “Guidelines for Evaluating the Environmental Effects of RF
Radiation", ET Docket No. 93-62 in August 1996. The order requires routine SAR evaluation prior to equipment authorization of portable
transmitter devices, including portable telephones. For consumer products, the applicable limit is 1.6 mW/g for an uncontrolled environment and
8.0 mW/g for an occupational/controlled environment as recommended by the ANSI/IEEE standard C95.1-1992. According to the Supplement C
of OET Bulletin 65 “Evaluating Compliance with FCC Guide-lines for Human Exposure to Radio frequency Electromagnetic Fields", released on
Jun 29, 2001 by the FCC, the device should be evaluated at maximum output power (radiated from the antenna) under “worst-case” conditions for
normal or intended use, incorporating normal antenna operating positions, device peak performance frequencies and positions for maximum RF
energy coupling.
1. Specific Absorption Rate (SAR) is a measure of the rate of energy absorption due to exposure to an RF transmitting source (wireless portable device).
2. IEEE/ANSI Std. C95.1-1992 limits are used to determine compliance with FCC ET Docket 93-62.

Supplement C (Edition 01-01) to OET Bulletin 65 (Edition 97-01):
Supplement C (Edition 01-01) - Additional Information for Evaluating Compliance of Mobile and Portable Devices with FCC Limits for Human Exposure
to Radiofrequency Emissions
OET Bulletin 65 (Edition 97-01) - Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields

IEEE Std 1528-2003:
IEEE Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless
Communications Devices: Measurement Techniques Supplement C

In additions;
KDB 447498 D01(v04)(Nov.13, 2009): Mobile and Portable Device RF Exposure Procedures and Equipment Authorization Policies
KDB 248227 (rev.1.2)(May 29, 2007): SAR Measurement Procedures for 802.11a//b/g Transmitters

3.2 Exposure limit
(A) Limits for Occupational/Controlled Exposure (W/kg)
Whole-Body Partial-Body Hands, Wrists, Feet and Ankles
(averaged over the entire body) (averaged over any 1g of tissue) (averaged over any 10g of tissue)
0.4 8.0 20.0
(B) Limits for General population/Uncontrolled Exposure (W/kg)
Whole-Body Partial-Body Hands, Wrists, Feet and Ankles
(averaged over the entire body) (averaged over any 1g of tissue) (averaged over any 10g of tissue)
0.08 1.6 4.0
Occupational/Controlled Environments: are defined as locations where there is exposure that may be incurred by people who are aware of the potential for exposure, (i.e. as a
result of employment or occupation).
General Population/Uncontrolled Environments: are defined as locations where there is the exposure of individuals who have no knowledge or control of their exposure.
The limit applied in this test report is;
General population / Uncontrolled exposure, Partial-Body (averaged over any 1g of tissue) limit: 1.6 W/kg

3.3 Procedures and Results
Item Test Procedure Limit Exclusion Remarks Result
Human FCC 1.6 W/kg (*1) SAR Complied (*2)
exposure OET Bulletin 65, (FCC 47CFR measurement
Maximum SAR(1g):
Supplement C §2.1093) (in accordance with
0.085 W/kg (at antenna-top, IEEE 802.11a, 6Mbps, 5180MHz)
KDB248227)
0.052 W/kg (at antenna-side-top, IEEE 802.11a, 6Mbps, 5180MHz)
0.032 W/kg (at antenna-side-bottom, IEEE 802.11a, 6Mbps, 5180MHz)
Note: UL Japan’s SAR Work Procedures No.QPM46 and QPM47. Other than above, no addition, deviation nor exclusion has been made from standards.
*1. Refer to the FCC inquiry number: 265500 of the test procedure for SAR.
*2. For the multi antenna transmitting simultaneously (MIMO), the measured SAR(1g) values of each antenna were not summed, because the antenna separation
of each antenna was more than 5cm. Refer to the FCC inquiry number: 265500 of the test procedure for SAR.

3.4 Test Location
No.7 shielded room (2.76(Width)  3.76m(Depth)  2.4m(Height)) for SAR testing.
UL Japan, Inc., Shonan EMC Lab.
1-22-3 Megumigaoka, Hiratsuka-shi, Kanagawa-ken 259-1220 JAPAN
Telephone number: +81 463 50 6400 / Facsimile number: +81 463 50 6401

UL Japan, Inc.
Shonan EMC Lab.
1-22-3 Megumigaoka, Hiratsuka-shi, Kanagawa-ken, 259-1220 JAPAN
Telephone: +81 463 50 6400 / Facsimile: +81 463 50 6401

Test report No. : 31CE0283-HO-01-C
Page : 5 of 59
Issued date : December 22, 2010
FCC ID : W2Z-01000001

3.5 Confirmation before SAR testing
3.5.1 Correlation of Output Power between EMC and SAR tests
It was checked that the antenna port power was correlated within 0~+5% (FCC requirements)
The result is shown in Section 6.
*. Output power at SAR test: SAR power was measured before SAR testing (S/N: A121013).
11a, 11n(20HT) and 11n(40HT) mode was measured the average output power at full channel.

*. Output power at EMC test: EMC power was measured during EMC testing. (S/N: A121014).
The average output power of 11a, 11n(20HT) at 5180MHz and 11n(40HT) at 5190 MHz which were obtained the worst average power in SAR
test sample, was measured on the EMC test sample by using the power sensor/meter method as a cross-reference data for SAR test.

3.5.2 Average power for SAR tests
Step.1 Data rate check
The data rate check was measurement all data rate in the lower default frequency of each frequency band. (*1)
*1. 5180MHz (11a, 11n(20HT)), 5190MHz (11n(40HT))
11a 11n 11n
Data rate MCS Spatial MCS Spatial
Modulation Modulation Modulation
[Mbps] Index Stream Index Stream
BPSK/OFDM 6 MCS0 1 BPSK/OFDM MCS0 1 BPSK/OFDM
BPSK/OFDM 9 MCS1 1 QPSK/OFDM MCS1 1 QPSK/OFDM
QPSK/OFDM 12 MCS2 1 QPSK/OFDM MCS2 1 QPSK/OFDM
QPSK/OFDM 18 MCS3 1 16QAM/OFDM MCS3 1 16QAM/OFDM
16QAM/OFDM 24 MCS4 1 16QAM/OFDM MCS4 1 16QAM/OFDM
16QAM/OFDM 36 MCS5 1 64QAM/OFDM MCS5 1 64QAM/OFDM
64QAM/OFDM 48 MCS6 1 64QAM/OFDM MCS6 1 64QAM/OFDM
64QAM/OFDM 54 MCS7 1 64QAM/OFDM MCS7 1 64QAM/OFDM
MCS8 2 BPSK/OFDM MCS8 2 BPSK/OFDM
MCS9 2 QPSK/OFDM MCS9 2 QPSK/OFDM
MCS10 2 QPSK/OFDM MCS10 2 QPSK/OFDM
MCS11 2 16QAM/OFDM MCS11 2 16QAM/OFDM
MCS12 2 16QAM/OFDM MCS12 2 16QAM/OFDM
MCS13 2 64QAM/OFDM MCS13 2 64QAM/OFDM
MCS14 2 64QAM/OFDM MCS14 2 64QAM/OFDM
MCS15 2 64QAM/OFDM MCS15 2 64QAM/OFDM

Step.2 Decision of SAR test channel
The average output power for 802.11a, 11n(20HT), 11n(40Ht) were measured on all channels in each frequency band.
"Default Test Channel"
Mode GHz Channel Turbo Channel FCC 15.247
UNII
802.11b 802.11g
2.412 1 √ ∆
802.11 b/g 2.437 6 6 √ ∆
2.462 11 √ ∆
5.18 36 √
5.20 40 42(5.21 GHz) *
5.22 44 *
5.24 48 √
50(5.25 GHz)
5.26 52 √
5.28 56 *
58(5.29 GHz)
5.30 60 *
5.32 64 √
5.50 100 *
UNII 5.52 104 √
5.54 108 *
5.56 112 *
802.11a 5.58 116 √
5.60 120 Unknown *
5.62 124 √
5.64 128 *
5.66 132 *
5.68 136 √
5.70 140 *
5.745 149 √ √
UNII 5.765 153 152(5.76 GHz) * *
or
FCC 15.247 5.785 157 √ *
5.805 161 160(5.80GHz) * √
FCC 15.247 5.825 165 √
√ = “default test channels”
* = Possible 802.11a channels with maximum average output > the “default test channels”
∆ = Possible 802.11g channels with maximum average output ¼ dB > the “default test channels”

UL Japan, Inc.
Shonan EMC Lab.
1-22-3 Megumigaoka, Hiratsuka-shi, Kanagawa-ken, 259-1220 JAPAN
Telephone: +81 463 50 6400 / Facsimile: +81 463 50 6401

Test report No. : 31CE0283-HO-01-C
Page : 6 of 59
Issued date : December 22, 2010
FCC ID : W2Z-01000001

3.6 Confirmation after SAR testing

It was checked that the power drift [W] is within ±5% in the evaluation procedure of SAR testing. The verification of
power drift during the SAR test is that DASY4 system calculates the power drift by measuring the e-filed at the same
location at beginning and the end of the scan measurement for each test position.
The result is shown in APPENDIX 2.
*. DASY4 system calculation Power drift value[dB] =20log(Ea)/(Eb) (where, Before SAR testing: Eb[V/m] / After SAR testing: Ea[V/m])
Limit of power drift[W] = 5%
Power drift limit (X) [dB] = 10log(P_drift)=10log(1.05/1)=10log(1.05)-10log(1)=0.212dB
from E-filed relations with power.
S=EH=E^2/=P/(4r^2) (: Space impedance)  P=(E^24r^2)/η
Therefore, The correlation of power and the E-filed
Power drift limit (X) dB=10log(P_drift)=10log(E_drift)^2=20log(E_drift)
From the above mentioned, the calculated power drift of DASY4 system must be the less than 0.212dB.

3.7 Measurement procedure
Operation mode: IEEE 802.11a, IEEE 802.11n(20HT), IEEE 802.11n(40HT)
Radiated power is always monitored by Spectrum Analyzer.
At the start, the SAR was measured on each 11a/11n(20HT)/11n(40HT) mode that had the highest average power for the
antenna port conducted power measurement.
Step 1 The searching for the worst position. ( at highest average power data rate and channel.)
Step 2 Change the transmitting mode at worst position.
Step 3 Change to the Low and High channels at worst position and at worst mode only when the measured SAR(1g) was higher than
0.8W/kg.
Step 4 Change to the Tx antenna and repeat above step 1 ~3.

3.8 Test setup of EUT

Top-touch The part of top surface which was near section of the antenna-top was touched to the flat section of Flat phantom.
Right-touch Either the part of top surface which was near section of either antenna-side-top or antenna side-bottom was touched to the flat
section of Flat phantom.
Front-touch The part of front surface (patient side) was touched to the flat section of Flat phantom for either near section of the antenna-top,
antenna-side-top nor antenna-side-bottom.
Rear-touch The part of rear surface (operator side) was touched to the flat section of Flat phantom for either near section of the antenna-top,
antenna-side-top nor antenna-side-bottom.
Bottom-touch The test was not applied. Because the measured SAR values were very small even the cross section of antenna, and this side
had enough separation distance from each antenna. (*1)
Left-touch The test was not applied. Because the measured SAR values were very small even the cross section of antenna, and this side
had enough separation distance from each antenna. (*1)
*1. Refer to the FCC inquiry number: 265500 of the test procedure for SAR.

UL Japan, Inc.
Shonan EMC Lab.
1-22-3 Megumigaoka, Hiratsuka-shi, Kanagawa-ken, 259-1220 JAPAN
Telephone: +81 463 50 6400 / Facsimile: +81 463 50 6401

Test report No. : 31CE0283-HO-01-C
Page : 8 of 59
Issued date : December 22, 2010
FCC ID : W2Z-01000001

SECTION 5: Uncertainty Assessment (SAR measurement)
56 GHz
Uncertainty of SAR measurement system
1g SAR 10g SAR
combined measurement uncertainty of the measurement system (k=1) ± 13.6% ± 13.3%
expanded uncertainty (k=2) ± 27.2% ± 26.7%
Uncertainty Probability ci ci ui ui
Error Description Divisor vi, veff
Value distribution (1g) (10g) (1g) (10g)
A Measurement System (std. uncertainty) (std.uncertainty)
1 Probe calibration ±6.8 % Normal 1 1 1 ±6.8 % ±6.8 % ∞
2 Axial isotropy ±4.7 % Rectangular √3 0.7 0.7 ±1.9 % ±1.9 % ∞
3 Hemispherical isotropy (*flat phantom, <5) ±2.6 % Rectangular √3 0.7 0.7 ±1.1 % ±1.1 % ∞
4 Boundary effects ±2.0 % Rectangular √3 1 1 ±1.2 % ±1.2 % ∞
5 Probe linearity ±4.7 % Rectangular √3 1 1 ±2.7 % ±2.7 % ∞
6 System detection limit ±1.0 % Rectangular √3 1 1 ±0.6 % ±0.6 % ∞
7 System readout electronics ±0.3 % Normal 1 1 1 ±0.3 % ±0.3 % ∞
8 Response time ±0.8 % Rectangular √3 1 1 ±0.5 % ±0.5 % ∞
9 Integration time ±2.6 % Rectangular √3 1 1 ±1.5 % ±1.5 % ∞
10 RF ambient - noise ±3.0 % Rectangular √3 1 1 ±1.7 % ±1.7 % ∞
11 RF ambient - reflections ±3.0 % Rectangular √3 1 1 ±1.7 % ±1.7 % ∞
12 Probe positioner mechanical tolerance ±0.8 % Rectangular √3 1 1 ±0.5 % ±0.5 % ∞
13 Probe positioning with respect to phantom shell ±9.9 % Rectangular √3 1 1 ±5.7 % ±5.7 % ∞
14 Max.SAR evaluation ±4.0 % Rectangular √3 1 1 ±2.3 % ±2.3 % ∞
B Test Sample Related
15 Device positioning ±5.0 % Normal 1 1 1 ±5.0 % ±5.0 % ∞
16 Device holder uncertainty ±5.0 % Normal 1 1 1 ±5.0 % ±5.0 % ∞
17 Power drift ±5.0 % Rectangular √3 1 1 ±5.0 % ±2.9 % ∞
C Phantom and Setup
18 Phantom uncertainty ±4.0 % Rectangular √3 1 1 ±2.3 % ±2.3 % ∞
19 Liquid conductivity (target) ±5.0 % Rectangular √3 0.64 0.43 ±1.8 % ±1.2 % ∞
20 Liquid conductivity (meas.) ±3.0 % Normal 1 0.64 0.43 ±1.9 % ±1.3 % ∞
21 Liquid permittivity (target) ±5.0 % Rectangular √3 0.6 0.49 ±1.7 % ±1.4 % ∞
22 Liquid permittivity (meas.) ±3.2 % Normal 1 0.6 0.49 ±1.9 % ±1.6 % ∞
Combined Standard Uncertainty ±13.6 % ±13.3 % ∞
Expanded Uncertainty (k=2) ±27.2 % ±26.7 %
*. This measurement uncertainty budget is suggested by Schmid & Partner Engineering AG. [6]

UL Japan, Inc.
Shonan EMC Lab.
1-22-3 Megumigaoka, Hiratsuka-shi, Kanagawa-ken, 259-1220 JAPAN
Telephone: +81 463 50 6400 / Facsimile: +81 463 50 6401

Document Created: 2011-01-31 11:47:12
Document Modified: 2011-01-31 11:47:12

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