SAR Report

FCC ID: RPNE5KTX10046340

RF Exposure Info

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FCCID_391858

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Table of Contents

1 SUBJECT OF INVESTIGATION ................................................................................................................... 4

2 THE IEEE STANDARD C95.1 AND THE FCC EXPOSURE CRITERIA................................................. 4

2.1 DISTINCTION BETWEEN EXPOSED POPULATION, DURATION OF EXPOSURE AND FREQUENCIES ...................... 4

2.2 DISTINCTION BETWEEN MAXIMUM PERMISSIBLE EXPOSURE AND SAR LIMITS ................................................ 5

2.3 SAR LIMIT ................................................................................................................................................... 5

3 THE FCC MEASUREMENT PROCEDURE ................................................................................................ 6

3.1 GENERAL REQUIREMENTS ............................................................................................................................ 6

3.2 DEVICE OPERATING NEXT TO A PERSON’S EAR ............................................................................................. 6

3.3 BODY-WORN AND OTHER CONFIGURATIONS ................................................................................................. 9

4 THE MEASUREMENT SYSTEM ................................................................................................................ 10

4.1 PHANTOM .................................................................................................................................................. 12

4.2 PROBE ....................................................................................................................................................... 12

4.3 MEASUREMENT PROCEDURE ...................................................................................................................... 13

4.4 UNCERTAINTY ASSESSMENT ........................................................................................................................ 14

5 SAR RESULTS................................................................................................................................................ 15

6 EVALUATION ................................................................................................................................................ 16

7 APPENDIX ...................................................................................................................................................... 17

7.1 ADMINISTRATIVE DATA .............................................................................................................................. 17

7.2 DEVICE UNDER TEST AND TEST CONDITIONS .............................................................................................. 17

7.3 TISSUE RECIPES ......................................................................................................................................... 18

7.4 MATERIAL PARAMETERS ............................................................................................................................. 18

7.5 SIMPLIFIED PERFORMANCE CHECKING ...................................................................................................... 18
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7.6 ENVIRONMENT ........................................................................................................................................... 21

7.7 TEST EQUIPMENT....................................................................................................................................... 21

7.8 CERTIFICATES OF CONFORMITY .................................................................................................................. 22

7.9 PICTURES OF THE DEVICE UNDER TEST ....................................................................................................... 23

7.10 TEST POSITIONS FOR THE DEVICE UNDER TEST ........................................................................................... 24

7.11 PICTURES TO DEMONSTRATE THE REQUIRED LIQUID DEPTH ........................................................................ 28

8 REFERENCES ................................................................................................................................................ 28

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2.2 Distinction between Maximum Permissible Exposure and SAR Limits
The biological relevant parameter describing the effects of electromagnetic fields in the
frequency range of interest is the specific absorption rate SAR (dimension: power/mass). It is a
measure of the power absorbed per unit mass. The SAR may be spatially averaged over the total
mass of an exposed body or its parts. The SAR is calculated from the r.m.s. electric field strength
E inside the human body, the conductivity σ and the mass density ρ of the biological tissue:
E2 ∂T
SAR = σ =c . (1)
ρ ∂t t →0 +

The specific absorption rate describes the initial rate of temperature rise ∂ T / ∂ t as a function of
the specific heat capacity c of the tissue. A limitation of the specific absorption rate prevents an
excessive heating of the human body by electromagnetic energy.

As it is sometimes difficult to determine the SAR directly by measurement (e.g. whole body
averaged SAR), the standard specifies more readily measurable maximum permissible exposures
in terms of external electric E and magnetic field strength H and power density S, derived from
the SAR limits. The limits for E, H and S have been fixed so that even under worst case
conditions, the limits for the specific absorption rate SAR are not exceeded.
For the relevant frequency range the maximum permissible exposure may be exceeded if the
exposure can be shown by appropriate techniques to produce SAR values below the
corresponding limits.

2.3 SAR Limit
In this report the comparison between the American exposure limits and the measured data is
made using the spatial peak SAR; the power level of the device under test guarantees that the
whole body averaged SAR is not exceeded.
Having in mind a worst case consideration, the SAR limit is valid for uncontrolled environment
and mobile respectively portable transmitters. According to Table 1 the SAR values have to be
averaged over a mass of 1 g (SAR1g) with the shape of a cube.

Standard Status SAR limit [W/kg]

IEEE C95.1 In force 1.6
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Table 1: Relevant spatial peak SAR limit averaged over a mass of 1 g.

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3 The FCC Measurement Procedure
The Federal Communications Commission (FCC) has published a report and order on the 1st of
August 1996 [FCC 1996], which requires routine dosimetric assessment of mobile telecom-
munications devices, either by laboratory measurement techniques or by computational
modeling, prior to equipment authorization or use. In 2001 the Commission’s Office of
Engineering and Technology has released Edition 01-01 of Supplement C to OET Bulletin 65.
This revised edition, which replaces Edition 97-01, provides additional guidance and information
for evaluating compliance of mobile and portable devices with FCC limits for human exposure
to radiofrequency emissions [FCC 2001].

3.1 General Requirements
The test shall be performed in a laboratory with an environment which avoids influence on SAR
measurements by ambient EM sources and any reflection from the environment itself. The
ambient temperature shall be in the range of 20°C to 26°C and 30-70% humidity.

3.2 Device Operating Next to a Person’s Ear

3.2.1 Phantom Requirements
The phantom is a simplified representation of the human anatomy and comprised of material
with electrical properties similar to the corresponding tissues. The physical characteristics of the
phantom model shall resemble the head and the neck of a user since the shape is a dominant
parameter for exposure.

3.2.2 Test Positions
As it cannot be expected that the user will hold the mobile phone exactly in one well defined
position, different operational conditions shall be tested. The Supplement C to OET Bulletin 65
requires two test positions. For an exact description helpful geometrical definitions are
introduced and shown in Fig. 2 - 3.
There are two imaginary lines on the mobile, the vertical centerline and the horizontal line. The
vertical centerline passes through two points on the front side of the handset: the midpoint of the
width wt of the handset at the level of the acoustic output (point A on Fig. 2), and the midpoint of
the width wb of the bottom of the handset (point B). The horizontal line is perpendicular to the
vertical centerline and passes through the center of the acoustic output (see Fig. 2). The two lines
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intersect at point A.

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may be used, but they shall not exceed 2.5 cm. In these cases, the device may use body-worn
accessories that provide a separation distance greater than that tested for the device provided
however that the accessory contains no metallic components.
For devices with retractable antenna the SAR test shall be performed with the antenna fully
extended and fully retracted. Other factors that may affect the exposure shall also be tested. For
example, optional antennas or optional battery packs which may significantly change the
volume, lengths, flip open/closed, etc. of the device, or any other accessories which might have
the potential to considerably increase the peak spatial-average SAR value.
The SAR test shall be performed at the high, middle and low frequency channels of each
operating mode. If the SAR measured at the middle channel for each test configuration is at least
3.0 dB lower than the SAR limit, testing at the high and low channels is optional.

4 The Measurement System
DASY is an abbreviation of „Dosimetric Assessment System“ and describes a system that is able
to determine the SAR distribution inside a phantom of a human being according to different
standards. The DASY4 system consists of the following items as shown in Fig: 6. Additional
Fig: 7 shows the equipment, similar to the installations in other laboratories [DASY 1995].

• High precision robot with controller
• Measurement server (for surveillance of the robot operation and signal filtering)
• Data acquisition electronics DAE (for signal amplification and filtering)
• Field probes calibrated for use in liquids
• Electro-optical converter EOC (conversion from the optical into a digital signal)
• Light beam (improving of the absolute probe positioning accuracy)
• Two SAM phantoms filled with tissue simulating liquid
• DASY4 software
• SEMCAD
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The mobile phone operating at the maximum power level is placed by a non metallic device
holder (delivered from Schmid & Partner) in the above described positions at a shell phantom of
a human being. The distribution of the electric field strength E is measured in the tissue simu-
lating liquid within the shell phantom. For this miniaturised field probes with high sensitivity and
low field disturbance are used. Afterwards the corresponding SAR values are calculated with the
known electrical conductivity σ and the mass density ρ of the tissue in the SEMCAD FDTD
software. The software is able to determine the averaged SAR values (averaging region 1 g or
10 g) for compliance testing.
The measurements are done by two scans: first a coarse scan determines the region of the
maximum SAR, afterwards the averaged SAR is measured in a second scan within the shape of a
cube. The measurement time takes about 20 minutes.

4.1 Phantom
For the measurements the Specific Anthropomorphic Mannequin (SAM Twin Phantom V4.0)
defined by the IEEE SCC-34/SC2 group and delivered by Schmid & Partner Engineering AG is
used. The phantom is a fibreglass shell integrated in a wooden table. The thickness of the
phantom amounts to 2 mm ± 0.2 mm. It enables the dosimetric evaluation of left and right hand
phone usage and includes an additional flat phantom part for the simplified performance check.
The phantom set-up includes a coverage (polyethylene), which prevents the evaporation of the
liquid. The details and the Certificate of conformity can be found in Fig. 10.

4.2 Probe
For the measurements the Dosimetric E-Field Probe ET3DV6 with following specifications is
used. It is manufactured and calibrated in accordance with FCC [FCC 2001] and IEEE
[IEEE 1528] recommendations annually by Schmid & Partner Engineering AG.
• Dynamic range: 5µW/g to > 100mW/g
• Tip diameter: 6.8 mm
• Distance between probe tip and sensor center: 2.7 mm
• Distance between sensor center and the inner phantom surface: 4 mm (repeatability better
than ± 1.0 mm)
• Boundary effect compensation included within the SEMCAD software
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• Probe linearity: ± 0.2 dB (30 MHz to 3 GHz)
• Axial isotropy: ± 0.2 dB
• Spherical isotropy: ± 0.4 dB
• Calibration range: 835MHz/1900/2450 MHz for head & body simulating liquid
• Angle between probe axis (evaluation axis) and surface normal line: less than 30°

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4.3 Measurement Procedure
The following steps are used for each test position:
• Establish a carrier with the maximum output power by switching on the Thermal Imaging
System.
• Measurement of the local E-field value at a fixed location (P1). This value serves as a
reference value for calculating a possible power drift.
• Measurement of the SAR distribution with a grid spacing of 15 mm x 15 mm and a
constant distance to the inner surface of the phantom. Since the sensors can not directly
measure at the inner phantom surface, the values between the sensors and the inner
phantom surface are extrapolated. With this values the area of the maximum SAR is
calculated by a interpolation scheme (combination of a least-square fitted function and a
weighted average method). Additional all peaks within 2 dB of the maximum SAR are
searched.
• Around this points, a cube of 30 mm x 30 mm x 30 mm is assessed by measuring
7 x 7 x 7 points whereby the first two measurement points are within the required 10 mm
of the surface. With these data, the peak spatial-average SAR value can be calculated
within the SEMCAD software.
• The used extrapolation and interpolation routines are all based on the modified Quadratic
Shepard´s method [DASY4].
• Repetition of the E-field measurement at the fixed location (P1) and repetition of the
whole procedure if the two results differ by more than ± 0.21dB.
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4.4 Uncertainty Assessment
Table 2 includes the uncertainty budget suggested by the [IEEE 1528] and determined by
Schmid & Partner Engineering AG. The expanded uncertainty (K=2) is assessed to be ± 20.6%.

Uncertai Probability Standard vi² or
Error Sources Divisor ci
nty Value Distribution Uncertainty veff

Measurement System
Probe calibration ± 4.8 % Normal 1 1 ± 4.8 % ∞
Axial isotropy ± 4.7 % Rectangular √3 0.7 ± 1.9 % ∞

Hemispherical isotropy ± 9.6 % Rectangular √3 0.7 ± 3.9 % ∞

Boundary effects ± 1.0 % Rectangular √3 1 ± 0.6 % ∞

Linearity ± 4.7 % Rectangular √3 1 ± 2.7 % ∞

System detection limit ± 1.0 % Rectangular √3 1 ± 0.6 % ∞

Readout electronics ± 1.0 % Normal 1 1 ± 1.0 % ∞

Response time ± 0.8 % Rectangular √3 1 ± 0.5 % ∞

Integration time ± 2.6% Rectangular √3 1 ± 1.5 % ∞

RF ambient conditions ± 3.0 % Rectangular √3 1 ± 1.7 % ∞

Probe positioner ± 0.4 % Rectangular √3 1 ± 0.2 % ∞

Probe positioning ± 2.9 % Rectangular √3 1 ± 1.7 % ∞

Algorithms for max SAR eval. ± 1.0 % Rectangular √3 1 ± 0.6 % ∞

Test Sample Related
Device positioning ± 2.9 % Normal 1 1 ± 2.9 % 145
Device holder ± 3.6 % Normal 1 1 ± 3.6 % 5
Power drift ± 5.0 % Rectangular √3 1 ± 2.9 % ∞
Phantom and Set-up
Phantom uncertainty ± 4.0 % Rectangular √3 1 ± 2.3 % ∞
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Liquid conductivity (target) ± 5.0 % Rectangular √3 0.64 ± 1.8 % ∞

Liquid conductivity (meas.) ± 2.5 % Normal 1 0.64 ± 1.6 % ∞

Liquid permittivity (target) ± 5.0 % Rectangular √3 0.6 ± 1.7 % ∞

Liquid permittivity (meas.) ± 2.5 % Normal 1 0.6 ± 1.5 % ∞

Combined Uncertainty ± 10.3 %

Table 2: Uncertainty budget of DASY4.

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5 SAR Results
The Tables below contain the measured SAR values averaged over a mass of 1 g.

Phantom SAR1g [W/kg] (Drift[dB]) Temperature
Configuration Test 2458 MHz 2474 MHz Ambient Liquid
(Liquid depth = 16.4 Position
cm)
26.5 dBm 26.5 dBm [° C] [° C]

1 0.496 (0.1) 0.442 (0.15) 22.5/22.5 21.7/21.7
Flat 2 0.351 (-0.18) 0.368 (0.2) 22.6/22.7 21.7/21.7

3 0.401 (-0.04) 22.8 21.7

4 0.177 (-0.1) 22.9 21.7

Table 3: Measured SAR results for the MSA EVOLUTION 5000 Transmitter.

The above mentioned power values are ERP values, they were measured on the same sample
which was prepared for the FCC approval. The values were delivered by Phoenix TEST-LAB
GmbH. The sample was carefully delivered by the manufacturer to the IMST GmbH to avoid
any damaging of the sample. After the SAR measurements the conducted power was measured
which is possible after open the transmitter housing. To avoid any damaging of the antenna
connection (the connector is not for customer use) conducted power was measured after the SAR
measurements and the values were within 5% of the values measured by Phoenix.
To control the output power stability during the SAR test the used DASY4 system calculates the
power drift by measuring the e-field at the same location at the beginning and at the end of the
measurement for each test position. These drift values can be found in the above tables labeled
as: (Drift[dB]). This ensures that the power drift during one measurement is within 5%.
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6 Evaluation
In Fig. 8 the SAR results in body-worn configuration given in Table 3 are summarized and
compared to the limit.

2458 MHz 2474 MHz

2
FCC Guideline

1,5
SAR 1g [W/kg]

1

0,5

0
Position 1 Position 2 Position 3 Position 4

Fig. 8: The measured body phantom SAR values for the MSA EVOLUTION 5000 Transmitter
in comparison to the FCC exposure limit.

The MSA EVOLUTION 5000 Transmitter (FCC ID: RPNE5KTX1004634) tested in
combination with the Evolution 5000 Thermal Imaging System is in compliance with the
Federal Communications Commission (FCC) Guidelines [FCC 2001] for uncontrolled
exposure.
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7 Appendix

7.1 Administrative Data
Date of validation: 2450 MHz, Body November 07, 2003
Date of measurement: 2450 MHz, Body: November 07, 2003
Data stored: Phoenix_6575_367

7.2 Device under Test and Test Conditions
MTE: MSA EVOLUTION 5000 Transmitter, Production Line Unit;
Evolution 5000 (Thermal Imaging System SN:A1-12009-008)
Date of receipt: November 07, 2003
Equipment class: Portable device
RF exposure environment: General Population/Uncontrolled
Power supply: Internal Battery (Other batteries not available)
Antenna: Antenna Typ: Patch
Modulation: FM
Crest Factor: 1
TX range: 2458 MHz & 2474 MHz
Used TX Channels: low: 2458 MHz, high: 2474 MHz
Used Phantom: SAM Twin Phantom V4.0, as defined by the IEEE SCC-34/SC2
group and delivered by Schmid & Partner Engineering AG
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7.3 Tissue Recipes
The following recipes are provided in percentage by weight.
2450 MHz, Body: 29.68% Diethylenglykol-monobutylether
70.00% De-Ionized Water
7.4 Material Parameters

For the measurement of the following parameters the HP 85070B dielectric probe kit is used,
representing the open-ended coaxial probe measurement procedure.

Temperature
Frequency εr σ [S/m] Ambient Liquid
[° C] [° C]

2450 MHz Recommended Value 52.70 ± 2.67 1.95 ± 0.08 20.0 - 26.0 -
(Body) Measured Value 50.70 ± 2.50 2.01 ± 0.20 22.5 217

Table 4: Parameters of the tissue simulating liquids.

7.5 Simplified Performance Checking
The simplified performance check was realized using the dipole validation kit. The input power
of the dipole antenna was 250 mW (cw signal) and it was placed under the flat part of the SAM
phantom. The result is listed in the Table 5 and shown in Fig. 9. The target value was adopted
from the manufactures calibration certificate which is attached in the appendix. Table 6 includes
the uncertainty assessment for the system performance checking which was suggested by the
[IEEE 1528] and determined by Schmid & Partner Engineering AG. The expanded uncertainty
(K=2) is assessed to be ± 16.8%.

Temperature
Frequency SAR1g [W/kg] εr σ [S/m] Ambient Liquid
[° C] [° C]

2450 MHz Target Value 13.00 51.70 2.01 20.0 - 26.0 -
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(Body) Measured Value 13.40 50.70 2.01 22.5 21.7

Table 5: Validation results, 2450 MHz.

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Uncertai Probability Standard vi² or
Error Sources Divisor ci
nty Value Distribution Uncertainty veff

Measurement System
Probe calibration ± 4.8 % Normal 1 1 ± 4.8 % ∞
Axial isotropy ± 4.7 % Rectangular √3 1 ± 2.7 % ∞

Hemispherical isotropy ±0% Rectangular √3 1 ±0% ∞

Boundary effects ± 1.0 % Rectangular √3 1 ± 0.6 % ∞

Linearity ± 4.7 % Rectangular √3 1 ± 2.7 % ∞

System detection limit ± 1.0 % Rectangular √3 1 ± 0.6 % ∞

Readout electronics ± 1.0 % Normal 1 1 ± 1.0 % ∞

Response time ±0% Rectangular √3 1 ±0% ∞

Integration time ± 0% Rectangular √3 1 ±0% ∞

RF ambient conditions ± 3.0 % Rectangular √3 1 ± 1.7 % ∞

Probe positioner ± 0.4 % Rectangular √3 1 ± 0.2 % ∞

Probe positioning ± 2.9 % Rectangular √3 1 ± 1.7 % ∞

Algorithms for max SAR eval. ± 1.0 % Rectangular √3 1 ± 0.6 % ∞

Dipole
Dipole Axis to Liquid Distance ± 2.0 % Rectangular 1 1 ± 1.2 % ∞
Input power and SAR drift mea. ± 4.7 % Rectangular √3 1 ± 2.7 % ∞
Phantom and Set-up
Phantom uncertainty ± 4.0 % Rectangular √3 1 ± 2.3 % ∞

Liquid conductivity (target) ± 5.0 % Rectangular √3 0.64 ± 1.8 % ∞

Liquid conductivity (meas.) ± 2.5 % Normal 1 0.64 ± 1.6 % ∞

Liquid permittivity (target) ± 5.0 % Rectangular √3 0.6 ± 1.7 % ∞

Liquid permittivity (meas.) ± 2.5 % Normal 1 0.6 ± 1.5 % ∞
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Combined Uncertainty ± 8.4 %

Table 6: Uncertainty budget for the system performance check.

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7.6 Environment
To comply with the required noise level (less than 12 mW/kg) periodically measurements
without a DUT were conducted.
Humidity: 37% ± 5 %

7.7 Test Equipment

Serial Last Next
Test Equipment Model
Number Calibration Calibration

DASY4 System
Software Version V4.0 N/A N/A N/A
Dosimetric E-Field Probe ET3DV6 1579 05/2003 05/2004
Data Acquisition Electronics DAE3 V1 565 04/2003 04/2004
Phantom SAM 1176 N/A N/A
Performance Checking
System Validation Dipole, Body D2450V2 709 07/2002 07/2004
Power Meter, Agilent E4416A GB41050414 11/2002 11/2003
Power Sensor, Agilent E9301H US40010212 12/2002 12/2003
RF Source (Network Analyzer) HP8753D 3410A06555 11/2002 11/2003
RF Amplifier, Mini-Circuits ZHL-42 D012296 N/A N/A
Material Measurement
Network Analyzer HP8753D 3410A06555 11/2002 12/2003
Dielectric Probe Kit HP85070B US33020263 N/A N/A

Table 7: Test equipment.
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Document Created: 2004-01-22 14:01:32
Document Modified: 2004-01-22 14:01:32

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