RM100 reMarkable paper tablet RF Exposure Info SAR Report reMarkable AS

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Report No.:EED32J00094003
Page 1 of 43
FCC SAR Test Report
Product
Trade mark
reMarkable paper tablet
Model/Type reference
RM100
Serial Number
N/A
Report Number
EED32J00094003
FCC ID
2AMK2-RM100
Date of Issue:
Aug. 9, 2017
Test Standards
Refer to Section 1.5
Test result
PASS
Prepared for:
reMarkable AS
Pilestredet 75C, 0354, Oslo, Norway
Prepared by:
Centre Testing International Group Co., Ltd.
Hongwei Industrial Zone, Bao’an 70 District,
Shenzhen, Guangdong, China
TEL: +86-755-3368 3668
FAX: +86-755-3368 3385
Tested By:
Compiled by:
Huang xiaole (Test Project)
Reviewed by:
Approved by:
Kevin lan (Reviewer)
Date:
Kevin yang (Project Engineer)
Aug. 9, 2017
Sheek Luo (Lab supervisor)
Check No.:2496527073
Report No.:EED32J00094003
Page 2 of 43
Table of contents
1 General information............................................................................................................................................................. 5
1.1 Notes............................................................................................................................................................................5
1.2 Application details................................................................................................................................................... 5
1.3 Statement of Compliance.......................................................................................................................................6
1.4 EUT Information........................................................................................................................................................7
1.5 Test standard/s......................................................................................................................................................... 8
1.6 RF exposure limits................................................................................................................................................... 9
1.7 SAR Definition...........................................................................................................................................................9
1.8 Testing laboratory..................................................................................................................................................10
1.9 Test Environment...................................................................................................................................................10
1.1 0 Applicant and Manufacturer............................................................................................................................. 10
2 SAR Measurement System Description and Setup...................................................................................................11
2.1 The Measurement System Description............................................................................................................ 11
2.2 Probe description...................................................................................................................................................12
2.3 Data Acquisition Electronics description........................................................................................................13
2.4 SAM Twin Phantom description.........................................................................................................................14
2.5 ELI4 Phantom description................................................................................................................................... 15
2.6 Device Holder description................................................................................................................................... 16
3 SAR Test Equipment List................................................................................................................................................. 17
4 SAR Measurement Procedures.......................................................................................................................................18
4.1 Spatial Peak SAR Evaluation............................................................................................................................ 18
4.2 Data Storage and Evaluation.............................................................................................................................19
4.3 Data Storage and Evaluation.............................................................................................................................23
5 SAR Verification Procedure.............................................................................................................................................25
5.1 Tissue Verification................................................................................................................................................. 25
5.2 System check procedure..................................................................................................................................... 27
5.3 System check results............................................................................................................................................28
6 SAR Measurement variability and uncertainty........................................................................................................... 29
6.1 SAR measurement variability............................................................................................................................. 29
6.2 SAR measurement uncertainty.......................................................................................................................... 29
7 SAR Test Configuration.................................................................................................................................................... 30
7.1 WIFI 5G Test Configurations...............................................................................................................................30
7.2 WIFI 2.4G Test Configurations........................................................................................................................... 32
8 SAR Test Results................................................................................................................................................................34
Report No.:EED32J00094003
Page 3 of 43
8.1 Conducted Power Measurements..................................................................................................................... 34
8.1.1 Conducted power of WiFi 5G....................................................................................................................... 34
8.1.2 Conducted Power of WiFi 2.4G................................................................................................................... 35
8.2 SAR test results......................................................................................................................................................36
8.2.1 Results overview of WiFi 5G........................................................................................................................ 37
8.2.2 Results overview of WiFi 2.4G.....................................................................................................................38
8.3 Multiple Transmitter Information....................................................................................................................... 39
8.4 Stand-alone SAR.................................................................................................................................................... 40
8.5 Simultaneous Transmission Possibilitiesand Conlcusion.........................................................................42
Ann ex A: Ap p e n d ix A: SAR Sy s te m perf o r m an ce Che c k Plo t s .......................................................... 43
Ann ex B: Ap p e n d ix B: SAR M ea s u rem en t re su lt s Pl o t s ......................................................................... 43
Ann ex C: Ap p e n d ix C: C ali b r at io n re po r t s ......................................................................................................43
Ann ex D: Ap p e n d ix D: Ph ot o doc u m e nt a t i o n ................................................................................................ 43
Report No.:EED32J00094003
Page 4 of 43
Modified History
REV.
Modification Description
Issued Date
REV.1.0
Initial Test Report Relesse
Aug. 9, 2017
Remark
Report No.:EED32J00094003
1.1
Page 5 of 43
General information
Notes
The test results of this test report relate exclusively to the test item specified in this test report.
Centre Testing International Group Co., Ltd. does not assume responsibility for any conclusions and
generalisations drawn from the test results with regard to other specimens or samples of the type of the
equipment represented by the test item. The test report is not to be reproduced or published in full
without the prior written permission.
1.2
Application details
Date of receipt of test item:
2017-05-16
Start of test:
2017-06-12
End of test:
2017-06-14
Report No.:EED32J00094003
1.3
Page 6 of 43
Statement of Compliance
The maximum results of Specific Absorption Rate (SAR) found during testing for reMarkable AS.
Model Name:RM100 are as below:
MAX Reported SAR (W/kg)
Band
1-g Head
1-g Body
(0mm)
WiFi 2.4G
N/A
0.635
WiFi 5.2G
N/A
0.502
WiFi 5.8G
N/A
1.245
Remark: N/A: This devices doesn't support voice mode, the head mode is not applicable.
Note:
The device is in compliance with Specific Absorption Rate
SAR
for general
population/uncontrolled exposure limits(1.6W/kg) according to the FCC rule §2.1093, the ANSI/IEEE
C95.1:1992, the NCRP Report Number 86 for uncontrolled environment, according to the Industry
Canada Radio Standards Specification RSS-102 for General Population/Uncontrolled exposure, and
had been tested in accordance with the measurement methods and procedures specified in IEEE
Std 1528-2013
Report No.:EED32J00094003
1.4
Page 7 of 43
EUT Information
Device Information:
Product Name:
Model:
FCC ID:
SN:
Device Type:
Exposure Category:
reMarkable paper tablet
RM100
2AMK2-RM100
N/A
Portable device
uncontrolled environment / general population
Hardware version:
N/A
Software version :
N/A
Antenna Type :
PIFA Antenna
Device Operating Configurations:
Supporting Mode(s) :
Modulation:
WiFi 2.4G; WiFi 5G;
DSSS,OFDM,
Band
Operating Frequency Range(s)
TX(MHz)
WIFI 2.4G
WIFI 5G
RX(MHz)
2412~2462
5150-5250; 5725-5850
1-6-11 (WiFi 2.4G)
Test Channels (low-mid-high):
WIFI 5G 802.11a(20M):
36-40-44-48-149-153-157-161-165
Power Source:
DC 3.7V, 3000mAh
Remark: The tested samples and the sample information are provided by the client.
Report No.:EED32J00094003
1.5
Page 8 of 43
Test standard/s
ANSI Std C95.1-1992
IEEE Std 1528-2013
RSS-102
Safety Levels with Respect to Human Exposure to Radio Frequency
Electromagnetic Fields, 3 kHz to 300 GHz.
Recommended Practice for Determining the Peak Spatial-Average
Specific Absorption Rate (SAR) in the Human Head from Wireless
Communications Devices: Measurement Techniques
Radio Frequency Exposure Compliance of Radiocommunication
Apparatus (All Frequency Bands (Issue 5 of March 2015)
KDB 248227 D01
SAR guidance for IEEE 802.11(Wi-Fi) transmitters v02r02
KDB616217 D04
SAR for laptop and tablets v01r02
KDB 447498 D01
General RF Exposure Guidance v06
KDB 690783 D01
SAR Listings on Grants v01r03
KDB 865664 D01
SAR Measurement 100 MHz to 6 GHz v01r04
KDB 865664 D02
RF Exposure Reporting v01r02
Report No.:EED32J00094003
1.6
Page 9 of 43
RF exposure limits
Human Exposure
Uncontrolled Environment
General Population
Controlled Environment
Occupational
Spatial Peak SAR*
1.60 mW/g
8.00 mW/g
(Brain/Body/Arms/Legs)
Spatial Average SAR**
0.08 mW/g
0.40 mW/g
(Whole Body)
Spatial Peak SAR***
4.00 mW/g
20.00 mW/g
(Hands/Feet/Ankle/Wrist)
The limit applied in this test report is shown in bold letters
Notes:
The Spatial Peak value of the SAR averaged over any 1 gram of tissue (defined as a
tissue volume in the shape of a cube) and over the appropriate averaging time.
**
***
The Spatial Average value of the SAR averaged over the whole body.
The Spatial Peak value of the SAR averaged over any 10 grams of tissue (defined as a tissue
volume in the shape of a cube) and over the appropriate averaging time.
Uncontrolled Environments are defined as locations where there is the exposure of
individuals who have no knowledge or control of their exposure.
Controlled Environments are defined as locations where there is exposure that may be
incurred by persons who are aware of the potential for exposure, (i.e. as a result of
employment or occupation.
1.7
SAR Definition
Specific Absorption Rate is defined as the time derivative (rate) of the incremental energy (dW)
absorbed by(dissipated in) an incremental mass (dm) contained in a volume element (dV) of a given
density (ρ).
SAR is expressed in units of watts per kilogram (W/kg). SAR can be related to the electric field at a
point by
where:
σ = conductivity of the tissue (S/m)
ρ = mass density of the tissue (kg/m3)
E = rms electric field strength (V/m)
Report No.:EED32J00094003
1.8
Page 10 of 43
Testing laboratory
Test Site
Test Location
Centre Testing International Group Co., Ltd.
Hongwei Industrial Zone, Bao’an 70 District, Shenzhen, Guangdong, China
Telephone
+86 (0) 755 3368 3668
Fax
+86 (0) 755 3368 3385
1.9
Test Environment
Required
Actual
Ambient temperature:
18 – 25 °C
21.5 ± 2.0 °C
Tissue Simulating liquid:
18 – 25 °C
21.5 ± 2.0 °C
Relative humidity content:
30 – 70 %
30 – 70 %
1.10 Applicant and Manufacturer
Applicant/Client Name
reMarkable AS
Applicant Address
Pilestredet 75C, 0354, Oslo, Norway
Manufacturer Name
reMarkable AS
Manufacturer Address
Pilestredet 75C, 0354, Oslo, Norway
Factory
Dongguang Kaifa Technology Co., Ltd
Address of Factory
Kaifa Park of CEC Industry Base, Humen town, Dongguan City,
Guangdong Province
Report No.:EED32J00094003
Page 11 of 43
2 SAR Measurement System Description and Setup
2.1
The Measurement System Description
The DASY5 system for performing compliance tests consists of the following items:









A standard high precision 6-axis robot (Stäubli TX/RX family) 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 Win7 profesional operating system 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.
Report No.:EED32J00094003
2.2
Page 12 of 43
Probe description
Dosimetric Probes: These probes are specially designed and calibrated for use in liquids with high
permittivities. They should not be used in air, since the spherical isotropy in air is poor(±2 dB). The
dosimetric probes have special calibrations in various liquids at different frequencies.
Symmetrical design with triangular core Interleaved sensors Built-in
Construction
shielding against static charges PEEK enclosure material (resistant
to organic solvents, e.g., DGBE)
Calibration
ISO/IEC 17025 calibration service available.
Frequency
10 MHz to 6 GHz; Linearity: ± 0.2 dB
Probe Overall Length
337mm
Probe Body Diameter
10mm
Tip Length
9mm
Tip Diameter
2.5mm
Dynamic range
5 µW/g to 100 mW/g; Linearity: ± 0.2 dB
Report No.:EED32J00094003
2.3
Page 13 of 43
Data Acquisition Electronics description
The data acquisition electronics (DAE4) consist of a highly sensitive electrometer-grade preamplifier
with auto-zeroing, a channel and gain-switching multiplexer, a fast 16 bit AD-converter and a command
decoder with a control logic unit. Transmission to the measurement server is accomplished through an
optical downlink for data and status information, as well as an optical uplink for commands and the
clock.
The mechanical probe mounting device includes two different sensor systems for frontal and sideways
probe contacts. They are used for mechanical surface detection and probe collision detection. The
input impedance of the DAE4 box is 200MOhm; the inputs are symmetrical and floating. Common
mode rejection is above 80 dB.
Batteries: The DAE works with either two standard 9V batteries or two 9V (actually 8.4V or 9.6 V)
rechargeable batteries. Because the electronics automatically power-down unused components during
braking or between measurements, the battery lifetime depends on system usage. Typical lifetimes
are >20 hours for batteries and >10 hours for accus. Remove the batteries if you do not plan to use the
DAE for a long period of time.
Report No.:EED32J00094003
2.4
Page 14 of 43
SAM Twin Phantom description
The SAM twin phantom is a fiberglass shell phantom with 2mm shell thickness (except the ear region,
where shell thickness increases to 6 mm). The phantom has three measurement areas:
♦ Left hand
♦ Right hand
♦ Flat phantom
The phantom table for the DASY systems have the size of 100 x 50 x 85 cm (L xWx H).
these tables
are reinforced for mounting of the robot onto the table. For easy dislocation these tables have fork lift
cut outs at the bottom.
The bottom plate contains three pairs of bolts for locking the device holder. The device holder positions
are adjusted to the standard measurement positions in the three sections.
A white cover is provided to cover the phantom during off-periods to prevent water evaporation and
changes in the liquid parameters.
Three reference marks are provided on the phantom counter. These reference marks are used to teach
the absolute phantom position relative to the robot.
Report No.:EED32J00094003
2.5
Page 15 of 43
ELI4 Phantom description
The ELI4 phantom is intended for compliance testing of handheld and body mounted wireless devices
in the frequency range of 30MHz to 6 GHz. ELI4 is fully compatible with the latest draft of the standard
IEC 62209-2 and all known tissue simulating liquids.
ELI4 has been optimized regarding its performance and can be integrated into a SPEAG standard
phantom table. A cover prevents evaporation of the liquid. Reference markings on the phantom allow
installation of the complete setup, including all predefined phantom positions and measurement grids,
by teaching three points
Report No.:EED32J00094003
2.6
Page 16 of 43
Device Holder description
The SAR in the phantom is approximately inversely proportional to the square of the distance between
the source and the liquid surface. For a source at 5mm distance, a positioning uncertainty of ±0.5mm
would produce a SAR uncertainty of ±20%. Accurate device positioning is therefore crucial for accurate
and repeatable measurements. The positions in which the devices must be measured are defined by
the standards.
The DASY device holder is designed to cope with the different positions given in the standard. It has
two scales for device rotation (with respect to the body axis) and device inclination (with respect to the
line between the ear reference points). The rotation centers for both scales is the ear reference point
(ERP).Thus the device needs no repositioning when changing the angles.
The DASY device holder is constructed of low-loss POM material having the following dielectric
parameters: relative permittivity ɛ = 3 and loss tangent δ =0.02.
The amount of dielectric material has
been reduced in the closest vicinity of the device, since measurements have suggested that the
influence of the clamp on the test results could thus be lowered.
Report No.:EED32J00094003
Page 17 of 43
3 SAR Test Equipment List
To simplify the identification of the test equipment and/or ancillaries which were used, the reporting of
the relevant test cases only refer to the test item number as specified in the table below.
Manufacturer
Device Type
Type(Model)
Serial number
Date of last
calibration
Valid period
SPEAG
E-Field Probe
EX3DV4
7328
2017-02-28
One year
SPEAG
835 MHz Dipole
D835V2
4d193
2015-02-02
Three years
SPEAG
1750 MHz Dipole
D1750V2
1134
2015-02-05
Three years
SPEAG
1900 MHz Dipole
D1900V2
5d198
2015-02-06
Three years
SPEAG
2000 MHz Dipole
D2000V2
1078
2015-02-05
Three years
SPEAG
2450 MHz Dipole
D2450V2
959
2015-02-05
Three years
SPEAG
2600 MHz Dipole
D2600V2
1101
2015-02-05
Three years
SPEAG
5 GHz Dipole
D5GHzV2
1208
2015-02-03
Three years
SPEAG
DAKS probe
DAKS-3.5
1052
2015-01-27
Three years
DAKS-VNA
R140
0200514
2015-01-27
Three years
DAE4
1458
2017-02-22
One year
DASY 5
SAM V5.0
ELI V6.0
NA
1875
2024
NCR
NCR
NCR
NCR
NCR
NCR
SU319W
BLSZ1550140
NCR
NCR
CMU200
101553
2017-03-14
One year
Agilent
Agilent
Agilent
Agilent
Planar R140 Vector
Reflectometer
Data acquisition
electronics
Software
Twin Phantom
Flat Phantom
Power Amplifier and
directional coupler
Universal Radio
Communication Tester
Signal Generator
Power Meter
Power Meter Sensor
Power Meter
MY45095744
MY45104044
MY41496140
312901
2017-03-14
2016-12-16
2016-12-16
2016-12-16
One year
One year
One year
One year
Agilent
Power Meter Sensor
E4438C
E4418B
E9300A
PM2002
51011AEMC
36252
2016-12-16
One year
SPEAG
SPEAG
SPEAG
SPEAG
SPEAG
BALUN
R&S
Note:
1) Per KDB865664D01 requirements for dipole calibration, the test laboratory has adopted three-year
extended calibration interval. Each measured dipole is expected to evaluate with the following
criteria at least on annual interval in Appendix C.
a) There is no physical damage on the dipole;
b) System check with specific dipole is within 10% of calibrated value;
c) The most recent return-loss result, measured at least annually, deviates by no more than 20% from
the previous measurement.
d) The most recent measurement of the real or imaginary parts of the impedance, measured at least
annually is within 5Ω from the previous measurement.
Report No.:EED32J00094003
Page 18 of 43
4 SAR Measurement Procedures
4.1
Spatial Peak SAR Evaluation
The DASY5 software includes all numerical procedures necessary to evaluate the spatial peak SAR
values.The base for the evaluation is a "cube" measurement in a volume of 30mm3 (7x7x7 points). The
measured volume must include the 1 g and 10 g cubes with the highest averaged SAR values. For that
purpose, the center of the measured volume is aligned to the interpolated peak SAR value of a
previously performed area scan. If the 10g cube or both cubes are not entirely inside the measured
volumes,the system issues a warning regarding the evaluated spatial peak values within the
Postprocessing engine (SEMCAD X). This means that if the measured volume is shifted, higher values
might be possible. To get the correct values you can use a finer measurement grid for the area scan. In
complicated field distributions, a large grid spacing for the area scan might miss some details and give
an incorrectly interpolated peak location. The entire evaluation of the spatial peak values is performed
within the Postprocessing engine (SEMCAD X). The system always gives the maximum values for the
1 g and 10 g cubes.
The algorithm to find the cube with highest averaged SAR is divided into the following stages:
1. extraction of the measured data (grid and values) from the Zoom Scan
2.
calculation of the SAR value at every measurement point based on all stored data (A/D values
and measurement parameters)
3. generation of a high-resolution mesh within the measured volume
4. interpolation of all measured values from the measurement grid to the high-resolution grid
5. extrapolation of the entire 3-D field distribution to the phantom surface over the distance from
sensor to surface
6. calculation of the averaged SAR within masses of 1 g and 10 g
Report No.:EED32J00094003
4.2
Page 19 of 43
Data Storage and Evaluation
Data Storage
The DASY5 software stores the measured voltage acquired by the Data Acquisition Electronics (DAE)
as raw data together with all the necessary software parameters for the data evaluation (probe
calibration data, liquid parameters and communication system parameters) in measurement files with
the extension .da5x. The postprocessing software evaluates the data every time the data is visualized
or exported. This allows the verification and modification of the setup after completion of the
measurement. For example, if a measurement has been performed with an incorrect crest factor, the
parameter can be corrected afterwards and the data can be reevaluated.
To avoid unintentional parameter changes or data manipulations, the parameters in measured files are
locked. In the administrator access mode of the software, the parameters can be unlocked. After
changing the parameters, the measured scans can be reevaluated in the postprocessing engine.
The measured data can be visualized or exported in different units or formats, depending on the
selected probe type (e.g., E-field, H-field, SAR). Some of these units are not available in certain
situations or give meaningless results, e.g., a SAR-output in a lossless media will always be zero. Raw
data can also be exported to perform the evaluation with other software packages.
Data Evaluation
The fields and SAR are calculated from the measured voltage (probe voltage acquired by the DAE) and
the following parameters:
Probe parameters:
- Sensitivity
normi, ai0, ai1, ai2
- Conversion Factor
- Diode Compression Point
- Probe Modulation Response Factors
Device parameters:
Media parameters:
convFi
dcpi
ai, bi,ci, d
- Frequency
- Crest factor
cf
- Conductivity
σ
- Relative Permittivity
ρ
This parameters are stored in the DASY5 V52 measurement file.
Report No.:EED32J00094003
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These parameters must be correctly set in the DASY5 V52 software setup. They are available as
configuration file and can be imported into the measurement file. The values displayed in the
multimeter window are assessed using the parameters of the actual system setup. In the scan
visualization and export modes, the parameters stored in the measurement file are used.
The measured voltage is not proportional to the exciting. It must be first linearized.
Approximated Probe Response Linearization using Crest Factor.
This linearization method is enabled when a custom defined communication system is measured. The
compensation applied is a function of the measured voltage, the detector diode compression point and
the crest factor of the measured signal.
with
dcpi
Vi
linearized voltage of channel i (uV)
(i = x,y,z)
Ui
measured voltage of channel i (uV)
(i = x,y,z)
cf
crest factor of exciting field
(DASY parameter)
diode compression point of channel i (uV)
(Probe parameter, i = x,y,z)
Report No.:EED32J00094003
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Field and SAR Calculation
The primary field data for each channel are calculated using the linearized voltage:
E - fieldprobes :
H - fieldprobes :
with
Vi
Normi
linearized voltage of channel i
sensor sensitivity of channel i
(i = x,y,z)
(i = x,y,z)
uV/(V/m)2 for E-field Probes
ConvF
sensitivity enhancement in solution
aij
sensor sensitivity factors for H-field probes
carrier frequency [GHz]
Ei
electric field strength of channel i in V/m
Hi
magnetic field strength of channel i in A/m
The RMS value of the field components gives the total field strength (Hermitian magnitude):
The primary field data are used to calculate the derived field units.
with
SAR
Etot
local specific absorption rate in mW/g
total field strength in V/m
σ
conductivity in [mho/m] or [Siemens/m]
ρ
equivalent tissue density in g/cm3
Note that the density is set to 1, to account for actual head tissue density rather than the density of the
tissue simulating liquid.
Report No.:EED32J00094003
Page 22 of 43
Spatial Peak SAR for 1 g and 10 g
The DASY5 software includes all numerical procedures necessary to evaluate the spatial peak SAR
values.The base for the evaluation is a "cube" measurement at the points of the fine cube grid
consisting of 5 x 5 x 7 points( with 8mm horizontal resolution) or 7 x 7 x 7 points( with 5mm horizontal
resolution) or 8 x 8 x 7 points( with 4mm horizontal resolution)..The entire evaluation of the spatial peak
values is performed within the Postprocessing engine (SEMCAD X).The system always gives the
maximum values for the 1 g and 10 g cubes. The algorithm to find the cube with highest averaged SAR
is divided into the following stages:
1. extraction of the measured data (grid and values) from the Zoom Scan.
2. calculation of the SAR value at every measurement point based on all stored data (A/D values
and measurement parameters).
3. generation of a high-resolution mesh within the measured volume.
4. interpolation of all measured values from the measurement grid to the high-resolution grid
5. extrapolation of the entire 3-D field distribution to the phantom surface over the distance from
sensor to surface.
6. calculation of the averaged SAR within masses of 1 g and 10 g.
Report No.:EED32J00094003
4.3
Page 23 of 43
Data Storage and Evaluation
The DASY5 installation includes predefined files with recommended procedures for measurements and
validation. All test positions (head or body-worn) are tested with the same configuration of test steps
differing only in the grid definition for the different test positions.
Step 1: Power reference measurement
The Power Reference Measurement and Power Drift Measurement 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. By default, the Minimum distance of
probe sensors to surface is 4 mm. This distance can be modified by the user, but cannot be smaller
than the Distance of sensor calibration points to probe tip as defined in the probe properties. The SAR
measurement was taken at a selected spatial reference point to monitor power variations during testing.
This fixed location point was measured and used as a reference value.
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 finer measurement around the hotspot. The sophisticated interpolation routines implemented
in DASY5 software can find the maximum locations even in relatively coarse grids. When an Area Scan
has measured all reachable points, it computes the field maxima 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 1528-2003 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.
Report No.:EED32J00094003
Page 24 of 43
Step 3: Zoom Scan
The Zoom Scans are used to assess the peak spatial SAR values within a cubic averaging volume
containing 1 gram and 10 gram of simulated tissue. The default Zoom Scan is defined in the following
table. DASY5 is also able to perform repeated zoom scans if more than 1 peak is found during area
scan. When the measurement is done, the Zoom Scan evaluates the averaged SAR for 1 gram and 10
gram and displays these values next to the job's label.
Area scan and Zoom scan resolutions per FCC KDB Publication 865664 D01:
Maximun
Maximun Zoom
Area Scan
Scan spatial
resolution
resolution
(ΔxArea,ΔyArea )
(ΔxZoom,ΔyZoom )
≤ 2GHz
≤ 15mm
2-3GHz
Frequency
Maximun Zoom Scan spatial resolution
Uniform Grid
Graded Grad
Minimum
zoom scan
volume
ΔzZoom(n)
ΔzZoom(1)*
ΔzZoom(n>1)*
≤ 8mm
≤ 5mm
≤ 4mm
≤1.5*ΔzZoom(n-1)
≥ 30mm
≤ 12mm
≤ 5mm
≤ 5mm
≤ 4mm
≤1.5*ΔzZoom(n-1)
≥ 30mm
3-4GHz
≤ 12mm
≤ 5mm
≤ 4mm
≤ 3mm
≤1.5*ΔzZoom(n-1)
≥ 28mm
4-5GHz
≤ 10mm
≤ 4mm
≤ 3mm
≤ 2.5mm
≤1.5*ΔzZoom(n-1)
≥ 25mm
5-6GHz
≤ 10mm
≤ 4mm
≤ 2mm
≤ 2mm
≤1.5*ΔzZoom(n-1)
≥ 22mm
(x,y,z)
Step 4: Power Drift Monitoring
The Power Drift Measurement measures the field at the same location as the most recent power
reference measurement job 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. If the value changed by more than 5%, the evaluation should be retested.
Report No.: EED32H0097805
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5 SAR Verification Procedure
5.1
Tissue Verification
The following materials are used for producing the tissue-equivalent materials.
(Liquids used for tests are marked with ):
Ingredients
Frequency (MHz)
(% of weight)
Tissue Type
Head Tissue
frequency band
835
1800
2000
2300
2450
2600
5200-5800
Water
41.45
52.64
54.9
62.82
62.7
55.242
65.52
Salt (NaCl)
1.45
0.36
0.18
0.51
0.5
0.306
0.0
Sugar
56.0
0.0
0.0
0.0
0.0
0.0
0.0
HEC
1.0
0.0
0.0
0.0
0.0
0.0
0.0
Bactericide
0.1
0.0
0.0
0.0
0.0
0.0
0.0
Triton X-100
0.0
0.0
0.0
0.0
36.8
0.0
17.24
DGBE
0.0
47.0
44.92
36.67
0.0
44.452
0.0
Diethylenglycol
0.0
0.0
0.0
0.0
0.0
0.0
17.24
monohexylether
Ingredients
Body Tissue
(% of weight)
frequency band
835
1750
1900
2450
2600
5200-5800
Water
52.5
69.91
69.91
73.20
64.50
76.3
Salt (NaCl)
1.40
0.13
0.13
0.04
0.02
0.0
Sugar
45.0
0.0
0.0
0.0
0.0
0.0
HEC
1.0
0.0
0.0
0.0
0.0
0.0
Bactericide
0.1
0.0
0.0
0.0
0.0
0.0
Triton X-100
0.0
0.0
0.0
0.0
0.0
10.2
DGBE
0.0
29.96
29.96
26.76
35.48
0.0
Diethylenglycol
0.0
0.0
0.0
0.0
0.0
13.5
monohexylether
Salt: 99+% Pure Sodium Chloride
Sugar: 98+% Pure Sucrose
Water: De-ionized, 16M+ 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
Report No.:EED32J00094003
Tissue simulating liquids: parameters:
Tissue
Type
Measured
Frequency
(MHz)
2410
2435
2.4G Body
2450
2460
5200
5G Body
5800
Page 26 of 43
Target Tissue
εr (+/-5%)
52.80
(50.16~55.44)
52.70
(50.07~55.34)
52.70
(50.07~55.34)
52.70
(50.07~55.34)
49.00
(46.55~51.45)
48.20
(45.79~50.61)
σ (S/m)
(+/-5%)
1.91
(1.81~2.00)
1.94
(1.84~2.04)
1.95
(1.85~2.05)
1.96
(1.86~2.06)
5.30
(5.03~5.56)
6.00
(5.70~6.30)
Measured Tissue
εr
σ (S/m)
53.19
1.894
52.97
1.924
52.97
1.940
52.96
1.957
49.01
5.246
48.15
εr= Relative permittivity, σ= Conductivity
5.938
Liquid
Temp.
Test Date
22.41°C
2017-6-12
22.03°C
2017-6-14
Report No.:EED32J00094003
5.2
Page 27 of 43
System check procedure
The System check is performed by using a System check dipole which is positioned parallel to the
planar part of the SAM phantom at the reference point. The distance of the dipole to the SAM phantom
is determined by a spacer. The dipole is connected to the signal source consisting of signal generator
and amplifier via a directional coupler, N-connector cable and adaption to SMA. It is fed with a power of
100mW. To adjust this power a power meter is used. The power sensor is connected to the cable
before the System check to measure the power at this point and do adjustments at the signal generator.
At the outputs of the directional coupler both return loss as well as forward power are controlled during
the validation to make sure that emitted power at the dipole is kept constant. This can also be checked
by the power drift measurement after the test (result on plot).
System check results have to be equal or near the values determined during dipole calibration (target
SAR in table above) with the relevant liquids and test system.
Report No.:EED32J00094003
5.3
Page 28 of 43
System check results
The system Check is performed for verifying the accuracy of the complete measurement system and
performance of the software. The following table shows System check results for all frequency bands
and tissue liquids used during the tests (plot(s) see annex A).
Measured SAR
Target SAR (1W) (+/-10%)
(Normalized to 1W)
System Check
Liquid
Test Date
(MHz)
Temp.
1-g
10-g
1-g (mW/g)
10-g (mW/g)
(mW/g)
(mW/g)
51.20
23.70
D2450V2 Body
49.10
23.20
22.41°C 2017-6-12
(46.08~56.32) (21.33~26.07)
74.50
20.80
D5200V2 Body
79.50
22.50
22.03°C 2017-6-14
(67.05~81.95) (18.72~22.88)
76.70
21.00
D5800V2 Body
78.60
21.80
22.03°C 2017-6-14
(69.03~84.37) (18.90~23.10)
Note: All SAR values are normalized to 1W forward power.
Report No.:EED32J00094003
Page 29 of 43
6 SAR Measurement variability and uncertainty
6.1
SAR measurement variability
In accordance with published RF Exposure KDB procedure 865664 D01 SAR measurement 100 MHz
to 6 GHz v01r04. 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.The same procedures should be adapted for
measurements according to extremity exposure limits by applying a factor of 2.5 for extremity exposure.
1) Repeated measurement is not required when the original highest measured SAR is < 2.0 W/kg;
steps 2) through 4) do not apply.
2) When the original highest measured SAR is ≥ 2.0 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 > 3.0 or when the original or repeated measurement is ≥ 3.6
W/kg (~ 10% from the 10-g SAR limit).
4) Perform a third repeated measurement only if the original, first or second repeated measurement is
≥3.75 W/kg and the ratio of largest to smallest SAR for the original, first and second repeated
measurements is > 1.20.
6.2
SAR measurement uncertainty
Per KDB865664 D01 SAR Measurement 100 MHz to 6 GHz v01r04,when the highest measured 1-g
SAR within a frequency band is < 1.5 W/kg, the extensive SAR measurement uncertainty analysis
described in IEEE Std 1528-2013 is not required in SAR reports submitted for equipment approval. The
equivalent ratio (1.5/1.6) is applied to extremity and occupational exposure conditions.
Report No.:EED32J00094003
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7 SAR Test Configuration
7.1
WIFI 5G Test Configurations
1) U-NII-1 and U-NII-2A Bands
For devices that operate in only one of the U-NII-1 and U-NII-2A bands, the normally required SAR
procedures for OFDM configurations are applied. For devices that operate in both U-NII bands using
the same transmitter and antenna(s), SAR test reduction is determined according to the following:
1.1) When the same maximum output power is specified for both bands, begin SAR measurement in UNII-2A band by applying the OFDM SAR requirements. If the highest reported SAR for a test
configuration is ≤ 1.2 W/kg, SAR is not required for U-NII-1 band for that configuration (802.11 mode
and exposure condition); otherwise, both bands are tested independently for SAR.
1.2) When different maximum output power is specified for the bands, begin SAR measurement in the
band with higher specified maximum output power. The highest reported SAR for the tested
configuration is adjusted by the ratio of lower to higher specified maximum output power for the two
bands. When the adjusted SAR is ≤ 1.2 W/kg, SAR is not required for the band with lower maximum
output power in that test configuration; otherwise, both bands are tested independently for SAR.
1.3) The two U-NII bands may be aggregated to support a 160 MHz channel on channel number 50.
Without additional testing, the maximum output power for this is limited to the lower of the maximum
output power certified for the two bands. When SAR measurement is required for at least one of the
bands and the highest reported SAR adjusted by the ratio of specified maximum output power of
aggregated to standalone band is > 1.2 W/kg, SAR is required for the 160 MHz channel. This
procedure does not apply to an aggregated band with maximum output higher than the standalone
band(s); the aggregated band must be tested independently for SAR. SAR is not required when the
160 MHz channel is operating at a reduced maximum power and also qualifies for SAR test exclusion.
2) U-NII-2C and U-NII-3 Bands
The frequency range covered by these bands is 380 MHz (5.47 – 5.85 GHz), which requires a
minimum of at least two SAR probe calibration frequency points to support SAR measurements. when
Terminal Doppler Weather Radar (TDWR) restriction applies, all channels that operate at 5.60 – 5.65
GHz must be included to apply the SAR test reduction and measurement procedures.
When the same transmitter and antenna(s) are used for U-NII-2C band and U-NII-3 band or 5.8 GHz
band of §15.247, the bands may be aggregated to enable additional channels with 20, 40 or 80 MHz
bandwidth to span across the band gap, as illustrated in Appendix B. The maximum output power for
the additional band gap channels is limited to the lower of those certified for the bands. Unless band
gap channels are permanently disabled, they must be considered for SAR testing. The frequency range
covered by these bands is 380 MHz (5.47 – 5.85 GHz), which requires a minimum of at least two SAR
probe calibration frequency points to support SAR measurements. To maintain SAR measurement
accuracy and to facilitate test reduction, the channels in U-NII-2C band above 5.65 GHz may be
Page 31 of 43
Report No.:EED32J00094003
grouped with the 5.8 GHz channels in U-NII-3 or §15.247 band to enable two SAR probe calibration
frequency points to cover the bands, including the band gap channels. When band gap channels are
supported and the bands are not aggregated for SAR testing, band gap channels must be considered
independently in each band according to the normally required OFDM SAR measurement and probe
calibration frequency points requirements.
3) OFDM Transmission Mode SAR Test Configuration and Channel Selection Requirements
The initial test configuration for 5 GHz OFDM transmission modes is determined by the 802.11
configuration with the highest maximum output power specified for production units, including tune-up
tolerance, in each standalone and aggregated frequency band. SAR for the initial test configuration is
measured using the highest maximum output power channel determined by the default power
measurement procedures. When multiple configurations in a frequency band have the same specified
maximum output power, the initial test configuration is determined according to the following steps
applied sequentially.
3.1) The largest channel bandwidth configuration is selected among the multiple configurations with the
same specified maximum output power.
3.2) If multiple configurations have the same specified maximum output power and largest channel
bandwidth, the lowest order modulation among the largest channel bandwidth configurations is
selected.
3.3) If multiple configurations have the same specified maximum output power, largest channel
bandwidth and lowest order modulation, the lowest data rate configuration among these configurations
is selected.
3.4) When multiple transmission modes (802.11a/g/n/ac) have the same specified maximum output
power, largest channel bandwidth, lowest order modulation and lowest data rate, the lowest order
802.11 mode is selected; i.e., 802.11a is chosen over 802.11n then 802.11ac or 802.11g is chosen
over 802.11n.
After an initial test configuration is determined, if multiple test channels have the same measured
maximum output power, the channel chosen for SAR measurement is determined according to the
following. These channel selection procedures apply to both the initial test configuration and
subsequent test configuration(s), with respect to the default power measurement procedures or
additional power measurements required for further SAR test reduction. The same procedures also
apply to subsequent highest output power channel(s) selection.
3.4.1) The channel closest to mid-band frequency is selected for SAR measurement.
3.4.2) For channels with equal separation from mid-band frequency; for example, high and low
channels or two mid-band channels, the higher frequency (number) channel is selected for SAR
measurement.
4) SAR Test Requirements for OFDM configurations
When SAR measurement is required for 802.11 a/n/ac OFDM configurations, each standalone and
frequency aggregated band is considered separately for SAR test reduction. When the same
transmitter and antenna(s) are used for U-NII-1 and U-NII-2A bands, additional SAR test reduction
applies. When band gap channels between U-NII-2C band and 5.8 GHz U-NII-3 or §15.247 band are
supported, the highest maximum output power transmission mode configuration and maximum output
Page 32 of 43
Report No.:EED32J00094003
power channel across the bands must be used to determine SAR test reduction, according to the initial
test configuration and subsequent test configuration requirements. In applying the initial test
configuration and subsequent test configuration procedures, the 802.11 transmission configuration with
the highest specified maximum output power and the channel within a test configuration with the
highest measured maximum output power should be clearly distinguished to apply the procedures.
7.2
WIFI 2.4G Test Configurations
For WiFi SAR testing, a communication link is set up with the testing software for WiFi mode test.
During the test,at the each test frequency channel, the EUT is operated at the RF continuous emission
mode. The RF signal utilized in SAR measurement has 100% duty cycle and its crest factor is 1. The
test procedures in KDB 248227D01 v02r02 are applied.
Per KDB 248227 D01 802.11 Wi-Fi SAR v02r02,SAR Test Reduction criteria are as follows:
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 relative SAR levels of multiple exposure test positions can be
established by area scan measurements on the highest measured output power channel to determine
the initial test position. The area scans must be measured using the same SAR measurement
configurations, including test channel, maximum output power, probe tip to phantom distance, scan
resolution etc.
When the reported SAR for the initial test position is:
1) ≤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.
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Report No.:EED32J00094003
2) > 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.
3) 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.
SAR is not required for the following 2.4 GHz OFDM conditions.
1) When KDB Publication 447498 SAR test exclusion applies to the OFDM configuration.
2) 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.
Report No.:EED32J00094003
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8 SAR Test Results
8.1
Conducted Power Measurements
8.1.1 Conducted power of WiFi 5G
Band
5.2G
Band
5.8G
Mode
802.11a
Mode
802.11a
Tune-up
Average
Power
(dBm)
SAR
Test
(Yes/No)
14.50
13.90
YES
14.50
13.66
YES
14.50
13.99
YES
14.50
13.87
YES
Tune-up
Average
Power
(dBm)
SAR
Test
(Yes/No)
5745
17.00
15.96
YES
153
5765
17.00
15.66
YES
157
5785
17.00
15.75
YES
161
5805
17.00
15.52
YES
165
5825
17.00
16.01
YES
Channel
Frequency
(MHz)
36
5180
40
5200
44
5220
48
5240
Channel
Frequency
(MHz)
149
Data
Rate
(Mbps)
Data
Rate
(Mbps)
Report No.:EED32J00094003
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8.1.2 Conducted Power of WiFi 2.4G
The output power of WiFi 2.4G is as following:
Mode
802.11b
802.11g
802.11n
(HT20)
Frequency
Data Rate
(MHz)
2412
(Mbps)
2437
11
2462
2437
11
2437
Channel
Average
SAR Test
20.00
Power(dBm)
18.93
(Yes/No)
Yes
20.00
19.16
Yes
20.00
21.00
21.00
19.22
20.06
Yes
No
20.25
No
2462
21.00
20.24
No
2412
20.00
20.00
18.74
No
18.97
No
2412
6.5
Tune-up
20.00
19.10
2462
No
11
Note: 1) An entry of “Not Required” means power measurement is not required according to the default
power measurement procedures in KDB248227D01.
Report No.:EED32J00094003
8.2
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SAR test results
Notes:
1) Per KDB447498 D01v06, 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. When the maximum output power variation across the required test channels is > ½ dB,
instead of the middle channel, the highest output power channel must be used.
2) Per KDB447498 D01v06, All measurement SAR result is scaled-up to account for tune-up
tolerance is compliant.
3) Per KDB865664 D01v01r04, for each frequency band, repeated SAR measurement is required
only when the measured SAR is ≥0.8W/Kg; if the deviation among the repeated measurement is ≤ 20%,
and the measured SAR <1.45W/Kg, only one repeated measurement is required.
4) Per KDB865664 D02v01r02, SAR plot is only required for the highest measured SAR in each
exposure configuration, wireless mode and frequency band combination; Plots are also required when
the measured SAR is > 1.5 W/kg, or > 7.0 W/kg for occupational exposure. The same procedures
should be adapted for measurements according to extremity exposure limits by applying a factor of 2.5
for extremity exposure.The published RF exposure KDB procedures may require additional plots; for
example, to support SAR to peak location separation ratio test exclusion and/or volume scan postprocessing (Refer to appendix B for details).
Report No.:EED32J00094003
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8.2.1 Results overview of WiFi 5G
Test
Position
With
0mm
Test
channel
/Freq.
(MHz)
Test
Mode
SAR Value
(W/kg)
1-g
10-g
Power
Drift
(dB)
Condu
cted
Power
(dBm)
Tuneup
power
(dBm)
Scaled
SAR1-g
(W/kg)
Actual
duty
factor
Reported
SAR1-g
(W/kg)
5.2G WiFi (U-NII-1 Band)
Back Side
44/5220
802.11a
0.246
0.065
-0.010
13.99
14.50
0.277
89.47%
0.310
Left Side
44/5220
802.11a
0.030
0.007
0.000
13.99
14.50
0.034
89.47%
0.038
Top Side
44/5220
802.11a
0.315
0.071
0.070
13.99
14.50
0.354
89.47%
0.396
Top Side
36/5180
802.11a
0.386
0.085
-0.060
13.90
14.50
0.443
88.16%
0.502
Top Side
48/5240
802.11a
0.334
0.077
0.050
13.87
14.50
0.386
89.47%
0.432
5.8G WiFi (U-NII-3 Band)
Back Side
165/5825
802.11a
0.584
0.161
0.060
16.01
17.00
0.734
88.16%
0.832
Left Side
165/5825
802.11a
0.017
0.004
0.030
16.01
17.00
0.021
88.16%
0.024
Top Side
165/5825
802.11a
0.859
0.210
0.070
16.01
17.00
1.079
88.16%
1.224
Top Side
149/5745
802.11a
0.847
0.213
0.160
15.96
17.00
1.076
88.16%
1.220
Top Side
157/5785
802.11a
0.799
0.196
0.040
15.75
17.00
1.065
89.47%
1.191
Top SideRepeated
165/5825
802.11a
0.874
0.233
0.030
16.01
17.00
1.098
88.16%
1.245
Report No.:EED32J00094003
Page 38 of 43
8.2.2 Results overview of WiFi 2.4G
Test
Position
With 0mm
Test
channel
/Freq.
(MHz)
Test
Mode
Back Side
11/2462
Left Side
SAR Value
(W/kg)
Condu
cted
Power
(dBm)
Tuneup
power
(dBm)
Scaled
SAR1-g
(W/kg)
Actual
duty
factor
Reported
SAR1-g
(W/kg)
1-g
10-g
Power
Drift
(dBm)
802.11b
0.277
0.126
-0.180
19.22
20.00
0.331
95.40%
0.347
11/2462
802.11b
0.030
0.014
-0.170
19.22
20.00
0.036
95.40%
0.038
Top Side
11/2462
802.11b
0.419
0.171
-0.150
19.22
20.00
0.501
95.40%
0.525
Top Side
6/2437
802.11b
0.495
0.193
0.130
19.16
20.00
0.601
95.40%
0.630
Top Side
1/2412
802.11b
0.474
0.188
0.020
18.93
20.00
0.606
95.40%
0.635
Note: Per KDB248227D01:
1) SAR is measured for 2.4 GHz 802.11b DSSS using initial test position procedure.
2) As the highest reported SAR for DSSS is adjusted by the ratio of OFDM 802.11g to DSSS specified
maximum output power and the adjusted SAR is < 1.2 W/kg, so SAR for OFDM 802.11g is required.
3) As the highest reported SAR for DSSS is adjusted by the ratio of OFDM 802.11n(20MHz) to DSSS
specified maximum output power and the adjusted SAR is < 1.2 W/kg, so SAR for OFDM
802.11n(20MHz) is required.
Report No.:EED32J00094003
8.3
Page 39 of 43
Multiple Transmitter Information
The location of the antennas inside RM100 is shown as below picture:
Note:
1)Per KDB 616217, because the diagonal Length is >200mm, it is considered a “ tablet” device and
need to test 0mm 1g Body SAR.
2) The device doesn't support telephone receiver, so additional Head SAR testing is not considered per
KDB616217D04 and KDB648474D04.
Report No.:EED32J00094003
8.4
Page 40 of 43
Stand-alone SAR
Per FCC KDB 447498D01:
1) 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
When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine
SAR test exclusion.
2) At 100 MHz to 6 GHz and for test separation distances > 50 mm, the SAR test exclusion threshold
is determined according to the following:
a) {[Power allowed at numeric threshold for 50 mm in step a)] + [(test separation distance – 50
mm)·(f(MHz)/150)]} mW, at 100 MHz to 1500 MHz
b) {[Power allowed at numeric threshold for 50 mm in step a)] + [(test separation distance – 50
mm)·10]} mW at > 1500 MHz and ≤ 6 GHz
(Antennas <50mm to adjacent sides)
(Antennas >50mm to adjacent sides)
Report No.:EED32J00094003
Page 41 of 43
3) When the minimum test separation distance is > 50 mm, the estimated SAR value is 0.4 W/kg.
For conditions where the estimated SAR is overly conservative for certain conditions, the test lab
may choose to perform standalone SAR measurements and use the measured SAR to determine
simultaneous transmission SAR test exclusion.
Note: maximum possible output power (including tune-up tolerance) declared by manufacturer
Report No.:EED32J00094003
8.5
Page 42 of 43
Simultaneous Transmission Possibilities and Conlcusion
The device has one antenna and support WiFi technology only, there is not simultaneous transmission
possibility and the reported SAR results is not exceed the SAR limit, so the tested result is comply with
the FCC limit.
Report No.:EED32J00094003
Page 43 of 43
Annex A: Appendix A: SAR System performance Check Plots
(Please See Appendix A)
Annex B: Appendix B: SAR Measurement results Plots
(Please See Appendix B)
Annex C: Appendix C: Calibration reports
(Please See Appendix C)
Annex D: Appendix D: Photo documentation
(Please See Appendix D)
——END OF REPORT——
The test report is effective only with both signature and specialized stamp, The result(s) shown
in this report refer only to the sample(s) tested. Without written approval of CTI, this report
can’t be reproduced except in full.
Download: RM100 reMarkable paper tablet RF Exposure Info SAR Report reMarkable AS
Mirror Download [FCC.gov]RM100 reMarkable paper tablet RF Exposure Info SAR Report reMarkable AS
Document ID3549151
Application IDsCrKoP3m+kkLOf+lViuF6Q==
Document DescriptionSAR Report
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeRF Exposure Info
Display FormatAdobe Acrobat PDF - pdf
Filesize75.86kB (948245 bits)
Date Submitted2017-09-07 00:00:00
Date Available2017-09-07 00:00:00
Creation Date2017-08-31 16:42:09
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Document Lastmod2017-08-31 16:42:20
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