SMT830 BT/BLE, DTS/UNII a/b/g/n/ac and ANT+ Tablet RF Exposure Info 1 Samsung Electronics Co Ltd

Samsung Electronics Co Ltd BT/BLE, DTS/UNII a/b/g/n/ac and ANT+ Tablet

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FCC 47 CFR § 2.1093
IEEE Std 1528-2013
SAR EVALUATION REPORT
FOR
BT/BLE, DTS/UNII a/b/g/n/ac and ANT+ Tablet
MODEL NUMBER: SM-T830
FCC ID: A3LSMT830
REPORT NUMBER: 4788480746-S1V1
ISSUE DATE: 6/27/2018
Prepared for
SAMSUNG ELECTRONICS CO., LTD.
129 SAMSUNG-RO, YEONGTONG-GU, SUWON-SI,
GYEONGGI-DO, 16677, KOREA
Prepared by
UL Korea, Ltd.
26th floor, 152, Teheran-ro, Gangnam-gu Seoul, 06236, Korea
Suwon Test Site: UL Korea, Ltd. Suwon Laboratory
218 Maeyeong-ro, Yeongtong-gu,
Suwon-si, Gyeonggi-do, 16675, Korea
TEL: (031) 337-9902
FAX: (031) 213-5433
TL-637
Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
Revision History
Rev.
V1
Date
Revisions
Revised By
6/27/2018
Initial Issue
Sunghoon Kim
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Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
Table of Contents
1.
Attestation of Test Results ......................................................................................................... 5
2.
Test Specification, Methods and Procedures............................................................................ 6
3.
Facilities and Accreditation ........................................................................................................ 6
4.
SAR Measurement System & Test Equipment .......................................................................... 7
4.1.
SAR Measurement System ........................................................................................................ 7
4.2.
SAR Scan Procedures ............................................................................................................... 8
4.3.
Test Equipment........................................................................................................................ 10
5.
Measurement Uncertainty ......................................................................................................... 10
6.
Device Under Test (DUT) Information ...................................................................................... 11
6.1.
DUT Description ...................................................................................................................... 11
6.2.
Wireless Technologies ............................................................................................................. 11
6.3.
Nominal and Maximum Output Power ...................................................................................... 12
7.
RF Exposure Conditions (Test Configurations) ...................................................................... 13
7.1
Standalone SAR Test Exclusion Considerations ...................................................................... 13
7.2
Required Test Configurations .................................................................................................. 14
Dielectric Property Measurements & System Check .............................................................. 15
8.1
Dielectric Property Measurements ........................................................................................... 15
8.2
System Check.......................................................................................................................... 17
Conducted Output Power Measurements................................................................................ 19
9.1
Wi-Fi 2.4GHz (DTS Band) ....................................................................................................... 19
9.2
Wi-Fi 5GHz (U-NII Bands)........................................................................................................ 20
9.3
Bluetooth ................................................................................................................................. 21
10
10.1
Measured and Reported (Scaled) SAR Results ....................................................................... 21
Wi-Fi (DTS Band) .................................................................................................................... 22
10.2 Wi-Fi (U-NII Band) .................................................................................................................... 23
10.3 Bluetooth .................................................................................................................................. 23
11
SAR Measurement Variability ................................................................................................... 25
12
Simultaneous Transmission SAR Analysis ............................................................................. 26
12.1
Sum of the SAR for DTS & UNII .............................................................................................. 27
Appendixes .......................................................................................................................................... 28
4788480746-S1V1 FCC Report SAR_App A_Photos & Ant. Locations .............................................. 28
4788480746-S1V1 FCC Report SAR_App B_Highest SAR Test Plots ............................................... 28
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Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
4788480746-S1V1 FCC Report SAR_App C_System Check Plots .................................................... 28
4788480746-S1V1 FCC Report SAR_App D_SAR Tissue Ingredients ............................................... 28
4788480746-S1V1 FCC Report SAR_App E_Probe Cal. Certificates ................................................. 28
4788480746-S1V1 FCC Report SAR_App F_Dipole Cal. Certificates ................................................ 28
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Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
1. Attestation of Test Results
Applicant Name
SAMSUNG ELECTRONICS CO.,LTD.
FCC ID
A3LSMT830
Model Name
SM-T830
Applicable Standards
FCC 47 CFR § 2.1093
Published RF exposure KDB procedures
IEEE Std 1528-2013
SAR Limits (W/Kg)
Exposure Category
Peak spatial-average(1g of tissue)
General population /
Uncontrolled exposure
1.6
The Highest Reported SAR (W/kg)
RF Exposure Conditions
Equipment Class
DTS
U-NII
DSS(BT)
Standalone
1.07
0.76
N/A
Simultaneous TX
1.54
1.28
N/A
Date Tested
6/12/2018 to 6/26/2018
Test Results
Pass
UL Korea, Ltd. tested the above equipment in accordance with the requirements set forth in the above
standards. All indications of Pass/Fail in this report are opinions expressed by UL Korea, Ltd. based on
interpretations and/or observations of test results. Measurement Uncertainties were not taken into
account and are published for informational purposes only. The test results show that the equipment
tested is capable of demonstrating compliance with the requirements as documented in this report.
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 UL Korea, Ltd. and all revisions are duly noted in the revisions section. Any alteration of this
document not carried out by UL Korea, Ltd. will constitute fraud and shall nullify the document. This
report must not be used by the client to claim product certification, approval, or endorsement by IAS, any
agency of the Federal Government, or any agency of any government.
Approved & Released By:
Prepared By:
Justin Park
Sunghoon Kim
Lead Test Engineer
Associate Test Engineer
UL Korea, Ltd. Suwon Laboratory
UL Korea, Ltd. Suwon Laboratory
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Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
2. Test Specification, Methods and Procedures
The tests documented in this report were performed in accordance with FCC 47 CFR § 2.1093, IEEE STD 15282013, the following FCC Published RF exposure KDB procedures:
248227 D01 802.11 Wi-Fi SAR v02r02
447498 D01 General RF Exposure Guidance v06
616217 D04 SAR for laptop and tablets v01r02
690783 D01 SAR Listings on Grants v01r03
865664 D01 SAR measurement 100 MHz to 6 GHz v01r04
865664 D02 RF Exposure Reporting v01r02
3. Facilities and Accreditation
The test sites and measurement facilities used to collect data are located at
Suwon
SAR 1 Room
SAR 2 Room
SAR 3 Room
UL Korea, Ltd. is accredited by IAS, Laboratory Code TL-637.
The full scope of accreditation can be viewed at http://www.iasonline.org/PDF/TL/TL-637.pdf.
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Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
4. SAR Measurement System & Test Equipment
4.1. SAR Measurement System
The DASY5 system used for performing compliance tests consists of the following items:
•
•
•
•
•
•
•
•
•
A standard high precision 6-axis robot with controller, teach pendant and software. An arm extension for
accommodating the data acquisition electronics (DAE).
An isotropic Field probe optimized and calibrated for the targeted measurement.
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 Electro-optical converter (EOC) performs the conversion from optical to electrical signals for the digital
communication to the DAE. To use optical surface detection, a special version of the EOC is required. The
EOC signal is transmitted to the measurement server.
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.
The Light Beam used is for probe alignment. This improves the (absolute) accuracy of the probe positioning.
A computer running WinXP or Win7 and the DASY5 software.
Remote control and teach pendant as well as additional circuitry for robot safety such as warning lamps, etc.
The phantom, the device holder and other accessories according to the targeted measurement.
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Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
4.2. SAR Scan Procedures
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.
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 DASY 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
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.
Area Scan Parameters extracted from KDB 865664 D01 SAR Measurement 100 MHz to 6 GHz
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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 points (refer to table below) 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.
Zoom Scan Parameters extracted from KDB 865664 D01 SAR Measurement 100 MHz to 6 GHz
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 (FCC only)
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 Zdirection.
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Report No.: 4788480746-S1V1
4.3.
Issue Date: 6/27/2018
Test Equipment
The measuring equipment used to perform the tests documented in this report has been calibrated in accordance
with the manufacturers’ recommendations, and is traceable to recognized national standards.
Dielectric Property Measurements
Name of Equipment
Manufacturer
Type/Model
Serial No.
Cal. Due Date
Network Analyzer
Agilent
E5071C
MY46522054
8-8-2018
Dielectric Assessment Kit
SPEAG
DAK-3.5
1196
8-2-2018
Shorting block
SPEAG
DAK-3.5 Short
SM DAK 200 BA
N/A
Thermometer
LKM
DTM3000
3424
8-11-2018
Thermometer
Lutron
MHB-382SD
AH.91478
8-10-2018
System Check
Name of Equipment
Manufacturer
Type/Model
Serial No.
Cal. Due Date
MXG Analog Signal Generator
Agilent
N5181A
MY50145882
8-7-2018
Power Sensor
Agilent
U2000A
MY54260010
8-8-2018
Power Sensor
Agilent
U2000A
MY54260007
8-8-2018
EXODUS
1410025-AMP2027-10003
10003
8-8-2018
Power Amplifier
Directional Coupler
Agilent
772D
MY52180193
8-7-2018
Low Pass Filter
FILTRON
L14012FL
1410003S
8-7-2018
Low Pass Filter
MICROLAB
LA-60N
03942
8-7-2018
Attenuator
Agilent
8491B/003
MY39269292
8-7-2018
Attenuator
Agilent
8491B/010
MY39269315
8-7-2018
Attenuator
Agilent
8491B/020
MY39269298
8-7-2018
E-Field Probe (SAR1)
SPEAG
EX3DV4
7376
8-22-2018
E-Field Probe (SAR3)
SPEAG
EX3DV4
7314
9-28-2018
Data Acquisition Electronics (SAR1)
SPEAG
DAE4
1468
8-22-2018
Data Acquisition Electronics (SAR3)
SPEAG
DAE4
1494
7-20-2018
System Validation Dipole
SPEAG
D2450V2
939
9-19-2018
System Validation Dipole
SPEAG
D5GHzV2
1209
2-15-2019
Thermometer (SAR1)
Lutron
MHB-382SD
AH.91463
8-10-2018
Thermometer (SAR3)
Lutron
MHB-382SD
AH.50213
8-16-2018
5. Measurement Uncertainty
Per KDB 865664 D01 SAR Measurement 100 MHz to 6 GHz, when the highest measured 1-g SAR within a
frequency band is < 1.5 W/kg and the measured 10-g SAR within a frequency band is < 3.75 W/kg. The expanded
SAR measurement uncertainty must be ≤ 30%, for a confidence interval of k = 2. If these conditions are met,
extensive SAR measurement uncertainty analysis described in IEEE Std 1528-2013 is not required in SAR reports
submitted for equipment approval.
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Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
6. Device Under Test (DUT) Information
6.1.
DUT Description
Device Dimension
Overall (Length x Width): 249.3 mm x 164.3 mm
Overall Diagonal: 290.0 mm
Display Diagonal: 267.0 mm
Back Cover
☒ The Back Cover is not removable.
Battery Options
☒ The rechargeable battery is not user accessible.
Wi-Fi Direct
Wi-Fi Direct enabled devices transfer data directly between each other
☒ Wi-Fi Direct (Wi-Fi 2.4 GHz)
☒ Wi-Fi Direct (Wi-Fi 5 GHz, Ch.36 – Ch.48, Ch.149 – Ch.165)
Test Sample Information
6.2.
No.
S/N
Notes
R32K300GACA
Wi-Fi Conducted
R32K300GA2M
SAR
R32K300G7ZJ
SAR
Wireless Technologies
Wireless
technologies
Frequency bands
Wi-Fi
2.4 GHz
5 GHz
Operating mode
802.11b
802.11g
802.11n (HT20)
802.11a
802.11n (HT20)
802.11n (HT40)
802.11ac (VHT20)
802.11ac (VHT40)
802.11ac (VHT80)
Duty Cycle used for SAR
testing
99.5% (802.11b)
96.9% (802.11g)
96.8% (802.11n 20MHz BW)
97.2% (802.11a)
96.9% (802.11n/ac 20MHz BW)
94.5% (802.11n/ac 40MHz BW)
88.4% (802.11ac 80MHz BW)
Does this device support bands 5.60 ~ 5.65 GHz? ☒ Yes ☐ No
Does this device support Band gap channel(s)? ☒ Yes ☐ No
Bluetooth
2.4 GHz
Version 5.0 LE
76.9% (DH5)
Notes:
1.
Duty cycle for Wi-Fi is referenced from the DTS and UNII report.
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Report No.: 4788480746-S1V1
6.3.
Issue Date: 6/27/2018
Nominal and Maximum Output Power
KDB 447498 sec.4.1. at the maximum rated output power and within the tune-up tolerance range specified for the
product, but not more than 2 dB lower than the maximum tune-up tolerance limit
Mode
RF Air interface
WiFi 2.4 GHz
(Ch.1 - Ch.11)
WiFi 2.4 GHz
(Ch.12)
WiFi 2.4 GHz
(Ch.13)
WiFi 5 GHz
802.11b
Max. RF Output Pow er (dBm)
Ant.2
Ant.1
13.0
13.0
802.11g
13.0
13.0
802.11n HT20
13.0
13.0
802.11b
9.0
9.0
802.11g
9.0
9.0
802.11n HT20
9.0
9.0
802.11b
2.0
2.0
802.11g
2.0
2.0
802.11n HT20
2.0
2.0
802.11a
10.0
10.0
802.11n HT20
10.0
10.0
802.11n HT40
10.0
10.0
802.11ac VHT20
10.0
10.0
802.11ac VHT40
10.0
10.0
802.11ac VHT80
10.0
10.0
Bluetooth
9.5
Bluetooth LE
2.6
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Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
7. RF Exposure Conditions (Test Configurations)
Refer to “SAR Photos and Ant locations” Appendix for the specific details of the antenna-to-antenna and
antenna-to-edge(s) distances.
7.1
Standalone SAR Test Exclusion Considerations
Since the Dedicated Host Approach is applied, the standalone SAR test exclusion procedure in KDB 447498 §
4.3.1 is applied in conjunction with KDB 616217 § 4.3 to determine the minimum test separation distance:
When the separation distance from the antenna to an adjacent edge is ≤ 5 mm, a distance of 5 mm is
applied to determine SAR test exclusion.
When the separation distance from the antenna to an adjacent edge is > 5 mm, the actual antenna-to-edge
separation distance is applied to determine SAR test exclusion.
SAR Test Exclusion Calculations for WLAN
Antenna.1 < 50mm to adjacent edges
Output Pow er
Separation Distances (m m )
Calculated Threshold Value
Tx
Interface
Frequency
(MHz)
dBm
mW
Rear
Edge 1
Edge 2
Edge 3
Edge 4
Wi-Fi 2.4 GHz
2462
13.00
20.0
243
20
122
Wi-Fi 5.3 GHz
5320
10.00
10.0
243
20
122
Wi-Fi 5.5 GHz
5720
10.00
10.0
243
20
122
Wi-Fi 5.8 GHz
5825
10.00
10.0
243
20
122
Bluetooth
2480
9.50
9.0
243
20
122
Front
Rear
6.3
-MEASURE4.6
-MEASURE4.8
-MEASURE4.8
-MEASURE2.8
-EXEMPT-
Edge 1
> 50 mm
> 50 mm
> 50 mm
> 50 mm
> 50 mm
Edge 2
Edge 3
1.6
-EXEMPT1.2
-EXEMPT1.2
-EXEMPT1.2
-EXEMPT0.7
-EXEMPT-
6.3
-MEASURE4.6
-MEASURE4.8
-MEASURE4.8
-MEASURE2.8
-EXEMPT-
Edge 4
Front
> 50 mm
> 50 mm
> 50 mm
> 50 mm
> 50 mm
Antenna.2 < 50mm to adjacent edges
Output Pow er
Separation Distances (m m )
Calculated Threshold Value
Tx
Interface
Frequency
(MHz)
dBm
mW
Rear
Edge 1
Edge 2
Edge 3
Edge 4
Wi-Fi 2.4 GHz
2462
13.00
20.0
243
121
20
Wi-Fi 5.3 GHz
5320
10.00
10.0
243
121
20
Wi-Fi 5.5 GHz
5720
10.00
10.0
243
121
20
Wi-Fi 5.8 GHz
5825
10.50
10.0
243
121
20
Front
Rear
6.3
-MEASURE4.6
-MEASURE4.8
-MEASURE4.8
-MEASURE-
Edge 1
Edge 2
> 50 mm
> 50 mm
> 50 mm
> 50 mm
> 50 mm
> 50 mm
> 50 mm
> 50 mm
Edge 3
Edge 4
6.3
-MEASURE4.6
-MEASURE4.8
-MEASURE4.8
-MEASURE-
1.6
-EXEMPT1.2
-EXEMPT1.2
-EXEMPT1.2
-EXEMPT-
Front
Note(s):
1.
According to KDB 447498, if the calculated threshold value is >3 then SAR testing is required.
Antenna.2 > 50mm to adjacent edges
Output Pow er
Separation Distances (m m )
Calculated Threshold Value
Tx
Interface
Frequency
(MHz)
dBm
mW
Rear
Edge 1
Edge 2
Edge 3
Edge 4
Wi-Fi 2.4 GHz
2462
13.00
20.0
243
20
122
< 50 mm
Wi-Fi 5.3 GHz
5320
10.00
10.0
243
20
122
< 50 mm
Wi-Fi 5.5 GHz
5720
10.00
10.0
243
20
122
< 50 mm
Wi-Fi 5.8 GHz
5825
10.00
10.0
243
20
122
< 50 mm
Bluetooth
2480
9.50
9.0
243
20
122
< 50 mm
Front
Rear
Edge 1
2025.6 mW
-EXEMPT1995 mW
-EXEMPT1992.7 mW
-EXEMPT1992.2 mW
-EXEMPT2025.3 mW
-EXEMPT-
Edge 2
Edge 3
< 50 mm
< 50 mm
< 50 mm
< 50 mm
< 50 mm
< 50 mm
< 50 mm
< 50 mm
< 50 mm
< 50 mm
Edge 4
Front
815.6 mW
-EXEMPT785 mW
-EXEMPT782.7 mW
-EXEMPT782.2 mW
-EXEMPT815.3 mW
-EXEMPT-
Antenna.2 > 50mm to adjacent edges
Output Pow er
Separation Distances (m m )
Calculated Threshold Value
Tx
Interface
Frequency
(MHz)
dBm
mW
Rear
Edge 1
Edge 2
Edge 3
Edge 4
Wi-Fi 2.4 GHz
2462
13.00
20.0
243
121
20
< 50 mm
Wi-Fi 5.3 GHz
5320
10.00
10.0
243
121
20
< 50 mm
Wi-Fi 5.5 GHz
5720
10.00
10.0
243
121
20
< 50 mm
Wi-Fi 5.8 GHz
5825
10.00
10.0
243
121
20
< 50 mm
Front
Rear
Edge 1
Edge 2
2025.6 mW
-EXEMPT1995 mW
-EXEMPT1992.7 mW
-EXEMPT1992.2 mW
-EXEMPT-
805.6 mW
-EXEMPT775 mW
-EXEMPT772.7 mW
-EXEMPT772.2 mW
-EXEMPT-
Edge 3
Edge 4
< 50 mm
< 50 mm
< 50 mm
< 50 mm
< 50 mm
< 50 mm
< 50 mm
< 50 mm
Front
Note(s):
1.
According to KDB 447498, if the calculated Power threshold is less than the output power then SAR testing is required.
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Report No.: 4788480746-S1V1
7.2
Issue Date: 6/27/2018
Required Test Configurations
The table below identifies the standalone test configurations required for this device according to the findings in
Section 7.1:
Edge 1
Edge 2
Edge 3
Edge 4
(Top Edge)
(Right Edge )
(Bottom Edge)
(Lef t Edge)
Yes
No
No
Yes
No
N/A
Yes
No
No
Yes
No
Wi-Fi 5.3 GHz_Ant.1
N/A
Yes
No
No
Yes
No
Wi-Fi 5.3 GHz_Ant.2
N/A
Yes
No
No
Yes
No
Wi-Fi 5.5 GHz_Ant.1
N/A
Yes
No
No
Yes
No
Wi-Fi 5.5 GHz_Ant.2
N/A
Yes
No
No
Yes
No
Wi-Fi 5.8 GHz_Ant.1
N/A
Yes
No
No
Yes
No
Wi-Fi 5.8 GHz_Ant.2
N/A
Yes
No
No
Yes
No
N/A
No
No
No
No
No
Pw r
Back-off
Rear
Wi-Fi 2.4 GHz_Ant.1
N/A
Wi-Fi 2.4 GHz_Ant.2
Test Configurations
Bluetooth
Note(s):
1.
Yes = Testing is required. No = Testing is not required..
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Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
8 Dielectric Property Measurements & System Check
8.1
Dielectric Property Measurements
The temperature of the tissue-equivalent medium used during measurement must also be within 18C to 25C and
within ± 2C of the temperature when the tissue parameters are characterized.
The dielectric parameters must be measured before the tissue-equivalent medium is used in a series of SAR
measurements. The parameters should be re-measured after each 3 – 4 days of use; or earlier if the dielectric
parameters can become out of tolerance; for example, when the parameters are marginal at the beginning of the
measurement series.
Tissue dielectric parameters were measured at the low, middle and high frequency of each operating frequency
range of the test device.
Tissue Dielectric Parameters
FCC KDB 865664 D01 SAR Measurement 100 MHz to 6 GHz
Target Frequency (MHz)
150
300
450
835
900
915
1450
1610
1800 – 2000
2450
3000
5000
5100
5200
5300
5400
5500
5600
5700
5800
Body
er
61.9
58.2
56.7
55.2
55.0
55.0
54.0
53.8
53.3
52.7
52.0
49.3
49.1
49.0
48.9
48.7
48.6
48.5
48.3
48.2
s (S/m)
0.80
0.92
0.94
0.97
1.05
1.06
1.30
1.40
1.52
1.95
2.73
5.07
5.18
5.30
5.42
5.53
5.65
5.77
5.88
6.00
IEEE Std 1528-2013
Refer to Table 3 within the IEEE Std 1528-2013
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Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
Dielectric Property Measurements Results:
SAR 1 Room
Date
Body 2450
6-25-2018
Liquid Parameters
Measured
Target
Delta (%)
Limit ±(%)
e'
52.5700
Relative Permittivity (єr):
52.57
52.70
-0.25
e"
14.6300
1.99
1.95
2.21
e'
52.8400
Conductivity (σ):
Relative Permittivity (єr):
52.84
52.77
0.13
e"
14.5500
e'
Freq. (MHz)
Body 2400
Body 2480
1.94
1.90
2.30
52.4200
Conductivity (σ):
Relative Permittivity (єr):
52.42
52.66
-0.46
e"
14.7000
Conductivity (σ):
2.03
1.99
1.75
Measured
Target
Delta (%)
Limit ±(%)
e'
48.3100
Relative Permittivity (єr):
48.31
48.95
-1.31
e"
17.6900
5.16
5.35
-3.53
e'
48.3100
Conductivity (σ):
Relative Permittivity (єr):
48.31
48.94
-1.28
e"
17.7100
5.18
5.36
-3.45
e'
47.8200
47.82
48.48
-1.36
e"
18.0100
5.61
5.76
-2.66
e'
47.6400
47.64
48.27
-1.31
e"
18.1500
e'
e"
SAR 3 Room
Date
Body 5250
Body 5260
6-12-2018
Liquid Parameters
Freq. (MHz)
Body 5600
Body 5750
Body 5825
Conductivity (σ):
Relative Permittivity (єr):
Conductivity (σ):
Relative Permittivity (єr):
5.80
5.94
-2.24
47.5100
Conductivity (σ):
Relative Permittivity (єr):
47.51
48.20
-1.43
18.2400
Conductivity (σ):
5.91
6.00
-1.54
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Report No.: 4788480746-S1V1
8.2
Issue Date: 6/27/2018
System Check
SAR system verification is required to confirm measurement accuracy, according to the tissue dielectric media,
probe calibration points and other system operating parameters required for measuring the SAR of a test device.
The system verification must be performed for each frequency band and within the valid range of each probe
calibration point required for testing the device. The same SAR probe(s) and tissue-equivalent media combinations
used with each specific SAR system for system verification must be used for device testing. When multiple probe
calibration points are required to cover substantially large transmission bands, independent system verifications are
required for each probe calibration point. A system verification must be performed before each series of SAR
measurements using the same probe calibration point and tissue-equivalent medium. Additional system verification
should be considered according to the conditions of the tissue-equivalent medium and measured tissue dielectric
parameters, typically every three to four days when the liquid parameters are re-measured or sooner when
marginal liquid parameters are used at the beginning of a series of measurements.
System Performance Check Measurement Conditions:
•
•
•
•
•
•
•
•
•
The measurements were performed in the flat section of the TWIN SAM or ELI phantom, shell thickness: 2.0
±0.2 mm (bottom plate) filled with Body or Head simulating liquid of the following parameters.
The depth of tissue-equivalent liquid in a phantom must be ≥ 15.0 cm for SAR measurements ≤ 3 GHz and ≥
10.0 cm for measurements > 3 GHz.
The DASY system with an E-Field Probe 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 7x7x7 (below 3 GHz) and/or 8x8x7 (above 3 GHz) fine cube was chosen for the cube.
Distance between probe sensors and phantom surface was set to 2.5 mm.
For 5 GHz band - Distance between probe sensors and phantom surface was set to 1.4 mm
The dipole input power (forward power) was 100 mW.
The results are normalized to 1 W input power.
Reference Target SAR Values
The reference SAR values can be obtained from the calibration certificate of system validation dipoles
System Dipole
D2450V2
Serial No.
939
Cal. Date
9-19-2017
Freq. (MHz)
2450
5250
D5GHzV2
1209
2-15-2018
5600
5750
Target SAR Values (W/kg)
1g/10g
Body
1g
50.70
10g
23.90
1g
75.70
10g
21.00
1g
79.00
10g
21.90
1g
75.60
10g
20.80
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Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
System Check Results
The 1-g and 10-g SAR measured with a reference dipole, using the required tissue-equivalent medium at the test
frequency, must be within 10% of the manufacturer calibrated dipole SAR target.
SAR 1 Room
System Dipole
Date Tested
6-25-2018
Type
Serial #
D2450V2
939
Measured Results
T.S.
Liquid
Body
Zoom Scan to
100 mW
Normalize
to 1 W
1g
5.09
50.90
10g
2.31
23.10
Target
(Ref. Value)
Delta
±10 %
50.70
23.90
-3.35
Target
(Ref. Value)
Delta
±10 %
0.39
Plot
No.
1, 2
SAR 3 Room
System Dipole
Date Tested
6-12-2018
Type
Serial #
D5GHzV2
1209
Measured Results
T.S.
Liquid
Body
6-12-2018
D5GHzV2
1209
Body
6-12-2018
D5GHzV2
1209
Body
Zoom Scan to
100 mW
Normalize
to 1 W
1g
7.33
73.30
75.70
-3.17
10g
2.04
20.40
21.00
-2.86
1g
8.38
83.80
79.00
6.08
10g
2.30
23.00
21.90
5.02
1g
7.23
72.30
75.60
-4.37
10g
2.00
20.00
20.80
-3.85
Plot
No.
3, 4
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Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
9 Conducted Output Power Measurements
9.1 Wi-Fi 2.4GHz (DTS Band)
Measured Results
Max Pwr.
Antenna
Band
(GHz)
Mode
802.11b
Ant.1
2.4
802.11g
802.11n
(HT20)
Data Rate
1 Mbps
6 Mbps
6.5 Mbps
Ch #
Freq.
(MHz)
Avg Pwr (dBm)
2412
12.2
2437
12.8
11
2462
12.0
12
2467
8.8
9.0
13
2472
1.6
2.0
2412
12.8
Max Output
Power (dBm)
SAR Test
(Yes/No)
13.0
Yes
13.0
2437
12.6
11
2462
12.8
12
2467
8.7
9.0
13
2472
0.8
2.0
2412
12.6
No
13.0
2437
12.4
11
2462
12.6
12
2467
8.5
9.0
13
2472
0.6
2.0
Ch #
Freq.
(MHz)
Avg Pwr (dBm)
Max Output
Power (dBm)
2412
12.5
2437
12.7
11
2462
12.9
12
2467
8.6
9.0
13
2472
1.7
2.0
2412
12.3
No
Max Pwr.
Antenna
Band
(GHz)
Mode
802.11b
Ant.2
2.4
802.11g
802.11n
(HT20)
Data Rate
1 Mbps
6 Mbps
6.5 Mbps
SAR Test
(Yes/No)
13.0
Yes
13.0
2437
12.5
11
2462
12.9
12
2467
8.6
9.0
13
2472
1.2
2.0
2412
12.1
No
13.0
2437
12.3
11
2462
12.7
12
2467
8.4
9.0
13
2472
1.0
2.0
No
Note(s):
1.
Output Power and SAR is not required for 802.11g/n HT20 channels when the highest reported SAR for DSSS is adjusted
by the ratio of OFDM to DSSS specified maximum output power and the adjusted SAR is ≤ 1.2 W/kg.
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Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
9.2 Wi-Fi 5GHz (U-NII Bands)
Measured Results
Ant.1 Max Pwr.
Band
(GHz)
Mode
802.11a
802.11n
(HT20)
5.3
(U-NII 2A)
6.5 Mbps
13.5 Mbps
802.11ac
(VHT20)
6.5 Mbps
802.11a
13.5 Mbps
29.3 Mbps
6 Mbps
802.11n
(HT20)
6.5 Mbps
802.11n
(HT40)
13.5 Mbps
802.11ac
(VHT20)
6.5 Mbps
802.11ac
(VHT40)
13.5 Mbps
802.11ac
(VHT80)
29.3 Mbps
802.11a
5.8
(U-NII 3)
6 Mbps
802.11n
(HT40)
802.11ac
(VHT40)
802.11ac
(VHT80)
5.5
(U-NII 2C)
Data Rate
6 Mbps
802.11n
(HT20)
6.5 Mbps
802.11n
(HT40)
13.5 Mbps
802.11ac
(VHT20)
6.5 Mbps
802.11ac
(VHT40)
13.5 Mbps
802.11ac
(VHT80)
29.3 Mbps
Ch #
Freq.
(MHz)
52
5260
56
5280
60
5300
64
5320
52
5260
56
5280
60
5300
64
54
62
52
5320
5270
5310
5260
56
5280
60
5300
64
54
62
5320
5270
5310
Avg Pwr
(dBm)
Ant.2 Max Pwr.
Max Output
Power (dBm)
SAR Test
(Yes/No)
10.0
No
10.0
No
Not Required
58
5290
100
5500
9.4
120
5600
124
5620
144
5720
100
120
124
144
102
118
126
142
100
120
124
144
102
118
126
142
106
5500
5600
5620
5720
5510
5590
5630
5710
5500
5600
5620
5720
5510
5590
5630
5710
5530
122
5610
9.7
138
5690
9.9
149
5745
157
5785
165
5825
149
157
165
151
159
149
157
165
151
159
5745
5785
5825
5755
5795
5745
5785
5825
5755
5795
155
5775
Not Required
9.6
Max Output
Power (dBm)
SAR Test
(Yes/No)
10.0
No
10.0
No
Not Required
10.0
No
10.0
No
10.0
No
10.0
No
10.0
No
10.0
No
10.0
Yes
10.0
Yes
10.0
No
10.0
No
10.0
No
10.0
No
10.0
No
10.0
No
10.0
No
10.0
No
10.0
No
10.0
No
10.0
Yes
10.0
Yes
9.6
Not Required
Avg Pwr
(dBm)
9.8
Not Required
9.1
9.1
9.0
10.0
Yes
10.0
No
10.0
No
10.0
No
10.0
No
10.0
No
10.0
No
10.0
No
10.0
No
10.0
No
10.0
Yes
10.0
Yes
Not Required
9.2
Note(s):
1.
2.
3.
For “Not required”, SAR Test reduction was applied from KDB 248227 guidance, Sec. 2.1, b), 1) when the same maximum
power is specified for multiple transmission modes in a frequency band, the largest channel bandwidth, lowest order
modulation, lowest data rate and lowest order 802.11a/g/n/ac mode is used for SAR measurement, on the highest
measured output power channel in the initial test configuration, for each frequency band. Additional output power
When the same transmission mode configurations have the same maximum output power on the same channel for the
802.11 a/g/n/ac modes, the channel in the lower order/sequence 802.11 mode (i.e. a, g, n then ac) is selected.
When the specified maximum output power is the same for both UNII band I and UNII band 2A, begin SAR measurement in
UNII band 2A; and if the highest reported SAR for UNII band 2A is
≤ 1.2 W/kg, SAR is not required for UNII band I
> 1.2 W/kg, both bands should be tested independently for SAR.
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Report No.: 4788480746-S1V1
9.3
Issue Date: 6/27/2018
Bluetooth
Maximum tune-up tolerance limit is 9.5 dBm from the rated nominal maximum output power. This power
level qualifies for exclusion of SAR testing. The reference to section 10.3 for explanation of rationale for
exemption of testing.
10 Measured and Reported (Scaled) SAR Results
SAR Test Reduction criteria are as follows:
KDB 447498 D01 General RF Exposure Guidance:
Testing of other required channels within the operating mode of a frequency band is not required when the reported 1-g or 10-g
SAR for the mid-band or highest output power channel is:
•
≤ 0.8 W/kg or 2.0 W/kg, for 1-g or 10-g respectively, when the transmission band is ≤ 100 MHz
•
≤ 0.6 W/kg or 1.5 W/kg, for 1-g or 10-g respectively, when the transmission band is between 100 MHz and 200 MHz
•
≤ 0.4 W/kg or 1.0 W/kg, for 1-g or 10-g respectively, when the transmission band is ≥ 200 MHz
KDB 248227 D01 SAR meas for 802.11:
SAR test reduction for 802.11 Wi-Fi transmission mode configurations are considered separately for DSSS and OFDM. An initial
test position is determined to reduce the number of tests required for certain exposure configurations with multiple test positions.
An initial test configuration is determined for each frequency band and aggregated band according to maximum output power,
channel bandwidth, wireless mode configurations and other operating parameters to streamline the measurement requirements.
For 2.4 GHz DSSS, either the initial test position or DSSS procedure is applied to reduce the number of SAR tests; these are
mutually exclusive. For OFDM, an initial test position is only applicable to next to the ear, UMPC mini-tablet and hotspot mode
configurations, which is tested using the initial test configuration to facilitate test reduction. For other exposure conditions with a
fixed test position, SAR test reduction is determined using only the initial test configuration.
The multiple test positions require SAR measurements in head, hotspot mode or UMPC mini-tablet configurations may be
reduced according to the highest reported SAR determined using the initial test position(s) by applying the DSSS or OFDM SAR
measurement procedures in the required wireless mode test configuration(s). The initial test position(s) is measured using the
highest measured maximum output power channel in the required wireless mode test configuration(s). When the reported SAR
for the initial test position is:
•
•
•
•
•
≤ 0.4 W/kg, further SAR measurement is not required for the other test positions in that exposure configuration and
wireless mode combination within the frequency band or aggregated band. DSSS and OFDM configurations are
considered separately according to the required SAR procedures.
> 0.4 W/kg, SAR is repeated using the same wireless mode test configuration tested in the initial test position to
measure the subsequent next closet/smallest test separation distance and maximum coupling test position, on the
highest maximum output power channel, until the reported SAR is ≤ 0.8 W/kg or all required test positions are tested.
o For subsequent test positions with equivalent test separation distance or when exposure is dominated by coupling
conditions, the position for maximum coupling condition should be tested.
o When it is unclear, all equivalent conditions must be tested.
For all positions/configurations tested using the initial test position and subsequent test positions, when the reported
SAR is > 0.8 W/kg, measure the SAR for these positions/configurations on the subsequent next highest measured
output power channel(s) until the reported SAR is ≤ 1.2 W/kg or all required test channels are considered.
o The additional power measurements required for this step should be limited to those necessary for identifying
subsequent highest output power channels to apply the test reduction.
When the specified maximum output power is the same for both UNII 1 and UNII 2A, begin SAR measurements in UNII
2A with the channel with the highest measured output power. If the reported SAR for UNII 2A is ≤ 1.2 W/kg, SAR is not
required for UNII 1; otherwise treat the remaining bands separately and test them independently for SAR.
When the specified maximum output power is different between UNII 1 and UNII 2A, begin SAR with the band that has
the higher specified maximum output. If the highest reported SAR for the band with the highest specified power is ≤
1.2 W/kg, testing for the band with the lower specified output power is not required; otherwise test the remaining bands
independently for SAR.
To determine the initial test position, Area Scans were performed to determine the position with the Maximum Value of SAR
(measured). The position that produced the highest Maximum Value of SAR is considered the worst case position; thus used as
the initial test position.
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Report No.: 4788480746-S1V1
10.1
Frequency
Band
Wi-Fi (DTS Band)
Mode
RF Exposure
Conditions
Antenna
Ant.1
2.4GHz
Issue Date: 6/27/2018
802.11b
1 Mbps
Ch #.
Freq.
(MHz)
Area Scan
Max. SAR
(W/kg)
Duty
Cycle (%)
Rear
2437.0
0.455
Edge 3
2437.0
Dist.
Test Position
(mm)
Power (dBm)
1-g SAR (W/kg)
Tune-up
limit
Meas.
Meas.
Scaled
99.5
13.0
12.8
0.449
0.472
0.305
99.5
13.0
12.8
0.307
0.323
2412.0
0.714
99.5
13.0
12.5
0.891
1.014
2437.0
0.866
99.5
13.0
12.7
0.998
1.065
11
2462.0
0.647
99.5
13.0
12.9
0.775
0.790
11
2462.0
0.099
99.5
13.0
12.9
0.109
0.111
Plot
No.
Standalone
Rear
Ant.2
Edge 3
Note(s):
1. SAR testing is not required for OFDM mode(s) when the highest reported SAR for DSSS is adjusted by the ratio of OFDM
to DSSS specified maximum output power and the adjusted SAR is ≤ 1.2 W/kg.
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Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
10.2 Wi-Fi (U-NII Band)
Frequency
Band
Mode
RF Exposure
Conditions
Antenna
Ant.1
5.3 GHz
U-NII 2A
802.11ac
29.3 Mbps
(VHT80)
Mode
RF Exposure
Conditions
Antenna
Ant.1
5.5 GHz
U-NII 2C
802.11ac
29.3 Mbps
(VHT80)
Mode
RF Exposure
Conditions
Antenna
Ant.1
5.8 GHz
U-NII 3
802.11ac
29.3 Mbps
(VHT80)
Area Scan
Max. SAR
(W/kg)
Duty
Cycle (%)
Rear
58
5290.0
1.753
Edge 3
58
5290.0
Rear
58
Edge 3
Power (dBm)
1-g SAR (W/kg)
Note
Tune-up
limit
Meas.
Meas.
Scaled
88.4
10.0
9.4
0.576
0.755
0.447
88.4
10.0
9.4
0.135
0.177
5290.0
0.484
88.4
10.0
9.8
0.300
0.354
58
5290.0
0.190
88.4
10.0
9.8
Ch #.
Freq.
(MHz)
Area Scan
Max. SAR
(W/kg)
Duty
Cycle (%)
Rear
138
5690.0
1.517
Edge 3
138
5690.0
Rear
122
Edge 3
Plot
No.
Dist.
Test Position
(mm)
Power (dBm)
1-g SAR (W/kg)
Tune-up
limit
Meas.
Meas.
Scaled
88.4
10.0
9.9
0.576
0.662
0.265
88.4
10.0
9.9
0.074
0.085
5610.0
0.695
88.4
10.0
9.1
0.368
0.514
122
5610.0
0.331
88.4
10.0
9.1
0.110
0.154
Ch #.
Freq.
(MHz)
Area Scan
Max. SAR
(W/kg)
Duty
Cycle (%)
Rear
155
5775.0
1.038
Edge 3
155
5775.0
Rear
155
Edge 3
155
Note
Plot
No.
Standalone
Ant.2
Frequency
Band
Freq.
(MHz)
Standalone
Ant.2
Frequency
Band
Ch #.
Dist.
Test Position
(mm)
Dist.
Test Position
(mm)
Power (dBm)
1-g SAR (W/kg)
Tune-up
limit
Meas.
Meas.
Scaled
88.4
10.0
9.6
0.561
0.689
0.234
88.4
10.0
9.6
0.059
0.072
5775.0
0.711
88.4
10.0
9.2
0.379
0.521
5775.0
0.202
88.4
10.0
9.2
0.068
0.093
Note
Plot
No.
Standalone
Ant.2
Note(s):
1.
2.
3.
4.
Highest reported SAR is ≤ 0.4 W/kg. Therefore, further SAR measurements within this exposure condition are not required.
Highest reported SAR is > 0.4 W/kg. Due to the highest reported SAR for this test position, other test positions in this
exposure condition were evaluated until a SAR ≤ 0.8 W/kg was reported.
Testing for a second channel was required because the reported SAR for this test position was >0.8 W/kg.
Additional testing required in order satisfying FCC simultaneous transmission limit criteria.
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Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
10.3 Bluetooth
Standalone SAR Test Exclusion Considerations & Estimated SAR
The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances
≤ 50 mm are determined by:
[(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)]·[√f(GHz)] ≤ 3.0, for 1-g SAR
and ≤ 7.5 for 10-g extremity SAR, where
•
f(GHz) is the RF channel transmit frequency in GHz
•
Power and distance are rounded to the nearest mW and mm before calculation
•
The result is rounded to one decimal place for comparison
The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for
transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a
distance of 5 mm is applied to determine SAR test exclusion.
When the standalone SAR test exclusion is applied to an antenna that transmits simultaneously with other
antennas, the standalone SAR must be estimated according to following to determine simultaneous transmission
SAR test exclusion:
•
(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)]·[√f(GHz)/x] W/kg for test
separation distances ≤ 50 mm;
where x = 7.5 for 1-g SAR, and x = 18.75 for 10-g SAR.
•
0.4 W/kg for 1-g SAR and 1.0 W/kg for 10-g SAR, when the test separation distances is > 50 mm.
Body Exposure Conditions
Antennas < 50mm to adjacent edges
Tx
Interface
Bluetooth
Frequency
(MHz)
2480
Output Pow er
dBm
9.50
mW
Separation Distances (mm)
Rear
Edge 1
243
Edge 2
20
Edge 3
Calculated Threshold Value
Edge 4
Rear
122
2.8
-EXEMPT-
Edge 1
Edge 2
Edge 3
Edge 4
> 50 mm
0.7
-EXEMPT-
2.8
-EXEMPT-
> 50 mm
Note(s):
According to KDB 447498, if the calculated threshold value is >3 then SAR testing is required.
Antennas > 50mm to adjacent edges
Output Pow er
Separation Distances (mm)
Calculated Threshold Value
Tx
Interface
Frequency
(MHz)
dBm
mW
Rear
Edge 1
Edge 2
Edge 3
Edge 4
Rear
Edge 1
Edge 2
Edge 3
Edge 4
Bluetooth
2480
9.50
243
20
122
< 50 mm
2025.3 mW
-EXEMPT-
< 50 mm
< 50 mm
815.3 mW
-EXEMPT-
Note(s):
According to KDB 447498, if the calculated Power threshold is less than the output power then SAR testing is required.
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Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
11 SAR Measurement Variability
In accordance with published RF Exposure KDB 865664 D01 SAR measurement 100 MHz to 6 GHz. These
additional measurements are repeated after the completion of all measurements requiring the same head or body
tissue-equivalent medium in a frequency band. The test device should be returned to ambient conditions (normal
room temperature) with the battery fully charged before it is re-mounted on the device holder for the repeated
measurement(s) to minimize any unexpected variations in the repeated results.
1) Repeated measurement is not required when the original highest measured SAR is < 0.80 W/kg; steps 2)
through 4) do not apply.
2) When the original highest measured SAR is ≥ 0.80 W/kg, repeat that measurement once.
3) Perform a second repeated measurement only if the ratio of largest to smallest SAR for the original and first
repeated measurements is > 1.20 or when the original or repeated measurement is ≥ 1.45 W/kg (~ 10% from
the 1-g SAR limit).
4) Perform a third repeated measurement only if the original, first or second repeated measurement is ≥1.5 W/kg
and the ratio of largest to smallest SAR for the original, first and second repeated measurements is > 1.20.
Frequency
Band
(MHz)
Highest
Measured
SAR (W/kg)
First
Repeated
Measured
Largest to
SAR
Smallest
(W/kg)
SAR Ratio
Air Interf ace
RF Exposure Conditions
Test Position
Repeated
SAR
(Yes/No)
2400
Wi-Fi 802.11b/g/n
Standalone
Rear
Yes
0.998
1.020
1.02
5300
Wi-Fi 802.11a/n/ac
Standalone
Rear
No
0.576
N/A
N/A
5500
Wi-Fi 802.11a/n/ac
Standalone
Rear
No
0.576
N/A
N/A
5800
Wi-Fi 802.11a/n/ac
Standalone
Rear
No
0.561
N/A
N/A
Note(s):
Second Repeated Measurement is not required since the ratio of the largest to smallest SAR for the original and first repeated
measurement is not > 1.20.
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Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
12 Simultaneous Transmission SAR Analysis
KDB 447498 D01 General RF Exposure Guidance introduces a new formula for calculating the SAR to Peak
Location Ratio (SPLSR) between pairs of simultaneously transmitting antennas:
SPLSR = (SAR1 + SAR2)1.5 /Ri
Where:
SAR1 is the highest measured or estimated SAR for the first of a pair of simultaneous transmitting antennas, in a
specific test operating mode and exposure condition
SAR2 is the highest measured or estimated SAR for the second of a pair of simultaneous transmitting antennas, in
the same test operating mode and exposure condition as the first
Ri is the separation distance between the pair of simultaneous transmitting antennas. When the SAR is measured,
for both antennas in the pair, it is determined by the actual x, y and z coordinates in the 1-g SAR for each SAR
peak location, based on the extrapolated and interpolated result in the zoom scan measurement, using the formula
of [(x1-x2)2 + (y1-y2)2 + (z1-z2)2]
In order for a pair of simultaneous transmitting antennas with the sum of 1-g SAR > 1.6 W/kg to qualify for
exemption from Simultaneous Transmission SAR measurements, it has to satisfy the condition of:
(SAR1 + SAR2)1.5 /Ri < 0.04
Simultaneous Transmission Condition
RF Exposure Condition
Standalone
Capable Transmit Configurations
Item
DTS_Ant.1
DTS_Ant.2
U-NII_Ant.1
U-NII_Ant.2
DTS_Ant.1
U-NII_Ant.2
Notes:
1. DTS and UNII supports Wi-Fi Direct.
2. DTS Radio cannot transmit simultaneously w ith Bluetooth Radio.
3. U-NII Radio cannot transmit simultaneously w ith Bluetooth Radio.
4. Only U-NII (Ant.2) Radio can transmit simultaneously w ith Only DTS (Ant.1) Radio.
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Report No.: 4788480746-S1V1
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Estimated SAR for Simultaneous Transmission SAR Analysis
Considerations for SAR estimation
1. When standalone SAR test exclusion applies, standalone SAR must also be estimated to determine
simultaneous transmission SAR test exclusion.
2. Dedicated Host Approach criteria for SAR test exclusion is likewise applied to SAR estimation, with certain
distinctions between test exclusion and SAR estimation:
When the separation distance from the antenna to an adjacent edge is ≤ 5 mm, a distance of 5 mm is
applied for SAR estimation; this is the same between test exclusion and SAR estimation calculations.
When the separation distance from the antenna to an adjacent edge is > 5 mm but ≤ 50 mm, the actual
antenna-to-edge separation distance is applied for SAR estimation.
When the minimum test separation distance is > 50 mm, the estimated SAR value is 0.4 W/kg
3. Please refer to Estimated SAR Tables to see which test positions are inherently compliant as they consist
of only estimated SAR values for all applicable transmitters and consequently will always have sum of SAR
values < 1.2 W/kg. Simultaneous transmission SAR analysis was therefore not performed for these test
positions.
Estimated SAR for WLAN
Tx
Interface
Frequency
(MHz)
Wi-Fi 2.4 GHz
Wi-Fi 5.3 GHz
Wi-Fi 5.5 GHz
Wi-Fi 5.8 GHz
Bluetooth
2462
5320
5720
5825
2480
13.00
10.00
10.00
10.00
9.50
20
10
10
10
Wi-Fi 2.4 GHz
Wi-Fi 5.3 GHz
Wi-Fi 5.5 GHz
Wi-Fi 5.8 GHz
2462
5320
5720
5825
13
10
10
10
20
10
10
10
12.1
Output Pow er
dBm
mW
Rear
Separation Distances (mm)
Edge 1
Edge 2
Edge 3
Edge 4
Ant.1
243
20
122
243
20
122
243
20
122
243
20
122
243
20
122
Ant.2
243
121
20
243
121
20
243
121
20
243
121
20
Front
Estimated 1-g SAR Value (W/kg)
Edge 1
Edge 2
Edge 3
Edge 4
Rear
-MEASURE-MEASURE-MEASURE-MEASURE0.378
0.400
0.400
0.400
0.400
0.400
0.209
0.154
0.159
0.161
0.094
-MEASURE-MEASURE-MEASURE-MEASURE0.378
0.400
0.400
0.400
0.400
0.400
-MEASURE-MEASURE-MEASURE-MEASURE-
0.400
0.400
0.400
0.400
0.400
0.400
0.400
0.400
-MEASURE-MEASURE-MEASURE-MEASURE-
0.209
0.154
0.159
0.161
Front
Sum of the SAR for DTS & UNII
∑ 1-g SAR (W/kg)
Standalone SAR (W/kg)
Test Position
DTS_Ant.1
DTS_Ant.2
U-NII_Ant.1
U-NII_Ant.2
DTS Ant.1 +
DTS Ant.2
UNII Ant.1 +
UNII Ant.2
DTS Ant.1 +
UNII Ant.2
①
②
③
④
①+②
③+ ④
①+④
Rear
0.472
1.065
0.755
0.521
1.537
1.276
0.993
Edge 1
0.400
0.400
0.400
0.400
0.800
0.800
0.800
Edge 2
0.209
0.400
0.161
0.400
0.609
0.561
0.609
Edge 3
0.323
0.111
0.177
0.154
0.434
0.331
0.477
Edge 4
0.400
0.209
0.400
0.161
0.609
0.561
0.561
Conclusion:
Simultaneous transmission SAR measurement (Volume Scan) is not required because the sum of the 1-g SAR is < 1.6 W/kg.
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Report No.: 4788480746-S1V1
Issue Date: 6/27/2018
Appendixes
Refer to separated files for the following appendixes.
4788480746-S1V1 FCC Report SAR_App A_Photos & Ant. Locations
4788480746-S1V1 FCC Report SAR_App B_Highest SAR Test Plots
4788480746-S1V1 FCC Report SAR_App C_System Check Plots
4788480746-S1V1 FCC Report SAR_App D_SAR Tissue Ingredients
4788480746-S1V1 FCC Report SAR_App E_Probe Cal. Certificates
4788480746-S1V1 FCC Report SAR_App F_Dipole Cal. Certificates
END OF REPORT
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