SAR Report Part 1

FCC ID: BXZKATY

RF Exposure Info

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FCCID_627563

DAT-P-152/98-01 Report Dosimetric Assessment of the Portable Device Ascom KATY-ACAAA/AGAAA (FCC ID: BXZKATY) According to the FCC Requirements November 30, 2005 IMST GmbH Carl-Friedrich-Gauß-Str. 2 D-47475 Kamp-Lintfort Customer Nemko Comlab AS Gasevikveien 8 dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo N-22027 Kjeller The test results only relate to the items tested. This report shall not be reproduced except in full without the written approval of the testing laboratory. SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 1 of 32

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 2 of 32 Executive Summary The KATY-ACAAA/AGAAA is a cordless telephone phone (Portable Device) from Ascom operating in the 2450 MHz frequency range. The device has an integrated antenna and the system concepts used is the 2.45 GHz WLAN standard. The objective of the measurements done by IMST was the dosimetric assessment of one device in the 2.45 GHz range in CW mode. The examinations have been carried out with the dosimetric assessment system „DASY4“. The measurements were made according to the Supplement C to OET Bulletin 65 of the Federal Communications Commission (FCC) Guidelines [OET 65] for evaluating compliance of mobile and portable devices with FCC limits for human exposure (general population) to radiofrequency emissions. All measurements have been performed in accordance to the recommendations given by SPEAG. The Ascom KATY-ACAAA/AGAAA cordless telephone phone (FCC ID: BXZKATY) is in compliance with the Federal Communications Commission (FCC) Guidelines [OET 65] for uncontrolled exposure. The phone was tested in addition to the head positions in the following configurations: Body worn with the following accessories: • With and without headset prepared by: ........................................... reviewed by: ..................................... Alexander Rahn André van den Bosch test engineer quality assurance engineer dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo IMST GmbH Carl-Friedrich-Gauß-Straße 2 D-47475 Kamp-Lintfort Tel. +49- 2842-981 378 Fax +49- 2842-981 399 email: vandenBosch@imst.de

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 3 of 32 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 4 BODY-WORN CONFIGURATIONS .............................................................................................................. 9 4.1 POC (PTT) POSITION ............................................................................................................................... 9 4.2 PHANTOM REQUIREMENTS ...................................................................................................................... 10 4.3 TEST TO BE PERFORMED ......................................................................................................................... 10 5 THE MEASUREMENT SYSTEM ................................................................................................................. 10 5.1 PHANTOM ................................................................................................................................................. 12 5.2 PROBE ...................................................................................................................................................... 12 5.3 MEASUREMENT PROCEDURE .................................................................................................................. 13 5.4 UNCERTAINTY ASSESSMENT ................................................................................................................... 14 6 SAR RESULTS............................................................................................................................................... 15 7 EVALUATION ................................................................................................................................................. 17 8 APPENDIX....................................................................................................................................................... 18 8.1 ADMINISTRATIVE DATA ............................................................................................................................ 18 8.2 DEVICE UNDER TEST AND TEST CONDITIONS ......................................................................................... 18 8.3 TISSUE RECIPES ...................................................................................................................................... 18 8.4 MATERIAL PARAMETERS ......................................................................................................................... 19 8.5 SIMPLIFIED PERFORMANCE CHECKING ................................................................................................... 19 dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo 8.6 ENVIRONMENT ......................................................................................................................................... 24 8.7 TEST EQUIPMENT .................................................................................................................................... 24 8.8 CERTIFICATES OF CONFORMITY .............................................................................................................. 26 8.9 PICTURES OF THE DEVICE UNDER TEST .................................................................................................. 27 8.10 TEST POSITIONS FOR THE DEVICE UNDER TEST .................................................................................... 29 8.11 PICTURES TO DEMONSTRATE THE REQUIRED LIQUID DEPTH .................................................................. 32 9 REFERENCES................................................................................................................................................ 32

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 4 of 32 1 Subject of Investigation The KATY-ACAAA/AGAAA is a cordless phone (Portable Device) from Ascom operating in the 2450 MHz frequency range. The device has an integrated antenna and the system concepts used is the 2.45 GHz WLAN standard. Fig. 1:Picture of the device under test The objective of the measurements done by IMST was the dosimetric assessment of one device in the 2.45 GHz range in CW mode. The examinations have been carried out with the dosimetric assessment system „DASY4“ described below. 2 The IEEE Standard C95.1 and the FCC Exposure Criteria In the USA the recent FCC exposure criteria [OET 65] are based upon the IEEE Standard C95.1 [IEEE C95.1]. The IEEE standard C95.1 sets limits for human exposure to radio frequency electromagnetic fields in the frequency range 3 kHz to 300 GHz. 2.1 Distinction Between Exposed Population, Duration of Exposure and Frequencies The American Standard [IEEE C95.1] distinguishes between controlled and uncontrolled environment. Controlled environments are locations where there is exposure that may be incurred by persons who are aware of the potential for exposure as a concomitant of employment or by other cognizant persons. Uncontrolled environments are locations where there is the exposure of individuals who have no knowledge or control of their exposure. The exposures may occur in living quarters or dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo workplaces. For exposure in controlled environments higher field strengths are admissible. In addition the duration of exposure is considered. Due to the influence of frequency on important parameters, as the penetration depth of the electromagnetic fields into the human body and the absorption capability of different tissues, the limits in general vary with frequency.

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 5 of 32 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 . ρ ∂t t →0 + (1) 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] dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo IEEE C95.1 In force 1.6 Table 1: Relevant spatial peak SAR limit averaged over a mass of 1 g.

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 6 of 32 3 The FCC Measurement Procedure The Federal Communications Commission (FCC) has published a report and order on the 1st of August 1996 [FCC 96-326], which requires routine dosimetric assessment of mobile telecommunications 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 [OET 65]. 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 dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo of the acoustic output (see Fig. 2). The two lines intersect at point A.

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 7 of 32 Fig. 2: Handset vertical and horizontal reference lines. Fig. 3: Phantom reference points. According to Fig. 3 the human head position is given by means of the following three reference points: auditory canal opening of both ears (RE and LE) and the center of the closed mouth (M). The ear reference points are 15-17 mm above the entrance to the ear canal along the BM line (back-mouth), as shown in Fig. 3. The plane passing dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo through the two ear canals and M is defined as the reference plane. The line NF (Neck- Front) perpendicular to the reference plane and passing through the RE (or LE) is called the reference pivoting line. Line BM is perpendicular to the NF line. With this definitions the test positions are given by

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 8 of 32 • Cheek position (see Fig. 4): Position the handset close to the surface of the phantom such that point A is on the (virtual) extension of the line passing through points RE and LE on the phantom (see Fig. 3), such that the plane defined by the vertical center line and the horizontal line of the phone is approximately parallel to the sagittal plane of the phantom. Translate the handset towards the phantom along the line passing through RE and LE until the handset touches the ear. While maintaining the handset in this plane, rotate it around the LE-RE line until the vertical centerline is in the plane normal to MB-NF including the line MB (called the reference plane). Rotate the phone around the vertical centerline until the phone (horizontal line) is symmetrical with respect to the line NF. While maintaining the vertical centerline in the reference plane, keeping point A on the line passing through RE and LE, and maintaining the phone contact with the ear, rotate the handset about the line NF until any point on the handset is in contact with a phantom point below the ear. Fig. 4: The cheek position. • Tilted position (see Fig. 5): dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo Fig. 5: The tilted position.

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 9 of 32 While maintaining the orientation of the phone retract the phone parallel to the reference plane far enough to enable a rotation of the phone by 15°. Rotate the phone around the horizontal line by 15°. While maintaining the orientation of the phone, move the phone parallel to the reference plane until any part of the phone touches the head. In this position, point A will be located on the line RE-LE. 3.2.3 Test to be Performed The SAR test shall be performed with both phone positions described above, on the left and right side of the phantom. The device shall be measured for all modes operating when the device is next to the ear, even if the different modes operate in the same frequency band. 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 Body-worn Configurations The body-worn configurations shall be tested with the supplied accessories (belt-clips, holsters, etc.) attached to the device in normal use configuration. Devices with a headset output shall be tested with a connected headset. For purpose of determining test requirements, accessories may be divided into two categories: those that do not contain metallic components and those that do. For multiple accessories that do not contain metallic components, the device may be tested only with that accessory which provides the closest spacing to the body. For multiple accessories that contain metallic components, the device must be tested with each accessory that contains a unique metallic component. If multiple accessories share an identical metallic component, only the accessory that provides the closest dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo spacing to the body must be tested. 4.1 PoC (PTT) Position The PoC (PTT) configurations shall be tested with the front of the device positioned at 25 mm from a flat phantom (display towards the phantom).

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 10 of 32 4.2 Phantom Requirements For body-worn and other configurations a flat phantom shall be used which is comprised of material with electrical properties similar to the corresponding tissues. 4.3 Test to be Performed 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 5 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. • 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 dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo • SEMCAD

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 11 of 32 Fig. 6: The DASY4 measurement system. dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo Fig. 7: The measurement set-up with two SAM phantoms containing tissue simulating liquid.

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 12 of 32 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 simulating 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. 5.1 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 system performance check and body worn measurements. 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. 12. 5.2 Probe For the measurements the Dosimetric E-Field Probes ET3DV6 or EX3DV4 with following specifications are used. They are manufactured and calibrated in accordance with FCC [OET 65] and IEEE [IEEE 1528-2003] recommendations annually by Schmid & Partner Engineering AG. ET3DV6: • Dynamic range: 5µW/g to > 100mW/g • Tip diameter: 6.8 mm • Probe linearity: ± 0.2 dB (30 MHz to 3 GHz) • Axial isotropy: ± 0.2 dB dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo • Spherical isotropy: ± 0.4 dB • Distance from probe tip to dipole centers: 2.7 mm • Calibration range: 900MHz / 1800MHz / 1900MHz / 1950 MHz / 2450MHz for head and body simulating liquid • Angle between probe axis (evaluation axis) and surface normal line: less than 30°

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 13 of 32 EX3DV4: • Dynamic range: 10µW/g to > 100mW/g (noise typically < 1µW/g) • Tip diameter: 2.5 mm • Probe linearity: ± 0.2 dB (30 MHz to 3 GHz) • Axial isotropy: ± 0.2 dB • Spherical isotropy: ± 0.4 dB • Distance from probe tip to dipole centers: 1.0 mm • Calibration range: : 900MHz / 1800MHz / 1900MHz / 1950 MHz / 2450MHz for head and body simulating liquid • Angle between probe axis (evaluation axis) and surface normal line: less than 30° 5.3 Measurement Procedure The following steps are used for each test position: • Establish a call with the maximum output power with a base station simulator. The connection between the mobile phone and the base station simulator is established via air interface. • 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 dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo 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.

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 14 of 32 5.4 Uncertainty Assessment Table 2 includes the uncertainty budget suggested by the [IEEE 1528-2003] and determined by Schmid & Partner Engineering AG. The expanded uncertainty (K=2) is assessed to be ± 20.6%. Uncertainty Probability Standard vi² or Error Sources Divisor ci 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 ∞ ± 1.0 % Rectangular √3 1 ± 0.6 % eval. 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 % ∞ dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo 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.

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 15 of 32 6 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 Channel 001 Channel 006 Channel 011 Ambient Liquid Liquid depth: Position 2412.0 MHz 2437.0 MHz 2462.0 MHz [° C] [° C] 16.4 cm 16.02 dBm 16.12 dBm 16.02 dBm Cheek 0.036* (-0.2) 22.3 21.5 Left Side Tilted 0.031(0.2) 22.2 21.4 Cheek 0.025* (0.05) 22.2 21.4 Right Head Tilted 0.033 (0.116) 22.4 21.3 Table 3: Measured head phantom results for 2.45 GHz (CW mode) for the Ascom KATY-ACAAA/AGAAA in CW mode (*Max Cube). SAR1g [W/kg] (Drift[dB]) Temperature Accessory Channel 001 Channel 006 Channel 011 Ambient Liquid Liquid depth: 16.3 cm 2412.0 MHz 2437.0 MHz 2462.0 MHz [° C] [° C] 16.02 dBm 16.12 dBm 16.02 dBm headset (1) (display towards 0.021 (0.2) 22.1 21.3 the phantom, touch) headset (1) (antenna towards 0.117 (0.2) 22.1 21.3 the phantom, touch) without headset (display 0.036 (0.2) 22.0 21.2 towards the phantom, touch) Table 4: Measurement results in body-worn configuration for 2.45 GHz (CW mode) for the Ascom KATY-ACAAA/AGAAA (*Max Cube). The “* Max Cube” labeling indicates that during the grid scanning an additional peak was found which was within 2.0 dB of the highest peak. The value of the highest cube is dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo given in the tables above, the value from the second assessed cube is given in the SAR distribution plots (see appendix).

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 16 of 32 The above mentioned power values are “conducted” power values for b-mode, they were measured on the same sample which was prepared for the FCC approval. The values were delivered by Comlab, Norway. Since the b-mode of the device delivers the highest output power, SAR measurements were only conducted in b-mode. 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%. (1) The used headset is “Mic in cable (653075). dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 17 of 32 7 Evaluation In Fig. 8 - 9 the head phantom and body-worn SAR results for 2.45 WLAN given in Table 3 - 4 are summarized and compared to the limit. Channel 001 Channel 006 Channel 011 2 FCC Guideline 1,5 SAR 1g [W/kg] 1 0,5 0 Cheek Tilted Cheek Tilted Left Side of Head Right Side of Head Fig. 8: The measured head phantom SAR values for the Ascom KATY-ACAAA/AGAAA for 2.45 GHz (measured in CW mode) in comparison to the FCC exposure limit. Channel 001 Channel 006 Channel 011 2 FCC Guideline 1,5 SAR 1g [W/kg] 1 0,5 0 Headset, display up Headset, display down without headset,display up Body worn configuration Fig. 9: The measured SAR values in body-worn configuration for the Ascom KATY- ACAAA/AGAAA for 2.45 GHz (measured in CW mode) in comparison to the FCC exposure limit. dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo The Ascom KATY-ACAAA/AGAAA cordless phone (FCC ID: BXZKATY) is in compliance with the Federal Communications Commission (FCC) Guidelines [OET 65] for uncontrolled exposure. The phone was tested in addition to the head positions in the following configurations: Body worn with the following accessories: • With and without headset

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 18 of 32 8 Appendix 8.1 Administrative Data Date of validation: 2450 MHz, Head: November 22, 2005 2450 MHz, Body: November 22, 2005 Date of measurement: November 22, 2005 Data stored: Nemko_6620_551 8.2 Device under Test and Test Conditions MTE: Ascom KATY-ACAAA/AGAAA, Production Line Unit Date of receipt: November 22, 2005 Serial No.: T26000003J FCC ID: BXZKATY Equipment class: Portable device RF exposure environment: General Population/Uncontrolled Power supply: Internal Battery (Other batteries not available) Antenna: Antenna Type: integrated Tested Accessories, Body: headset (653075 Mic in cable) Available Accessories: headset (653075 Mic in cable) Measured Standards: WLAN 802.11b (802.11g also possible) Method to establish a call: internal test mode with CW signal Modulation: OFDM / DSSS Crest Factor: 1 (CW) for 802.11b TX/RX range: 2412 MHz – 2462 MHz Used TX Channels: low: ch. 001, center: ch. 006, high: ch. 013 Used Phantom: SAM Twin Phantom V4.0, as defined by the IEEE SCC-34/SC2 group and delivered by Schmid & Partner Engineering AG 8.3 Tissue Recipes The following recipes are provided in percentage by weight. 2450 MHz, Head: 45.65% Diethylenglykol-monobutylether 54.00% De-Ionized Water dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo 2450 MHz, Body: 29.68% Diethylenglykol-monobutylether 70.00% De-Ionized Water

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 19 of 32 8.4 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. The measured values should be within ± 5% of the recommended values given by the FCC. Temperature Frequency εr σ [S/m] Ambient Liquid [° C] [° C] 2450 MHz Recommended Value 39.20 ± 1.90 1.80 ± 0.09 20.0 - 26.0 - (Head) Measured Value 38.90 1.82 21.8 21.1 2450 MHz Recommended Value 52.70 ± 2.60 1.95 ± 0.09 20.0 - 26.0 - (Body) Measured Value 50.60 1.99 21.8 21.1 Table 5: Parameters of the tissue simulating liquids. 8.5 Simplified Performance Checking The simplified performance check was realized using the dipole validation kits. The input power of the dipole antennas were 250 mW (cw signal) and they were placed under the flat part of the SAM phantom. The target and measured results are listed in the Table 6 - 7 and shown in Fig. 10-11. The target values were adopted from the manufactures calibration certificates which are attached in the appendix. Table 8 includes the uncertainty assessment for the system performance checking which was suggested by the [IEEE 1528-2003] and determined by Schmid & Partner Engineering AG. The expanded uncertainty (K=2) is assessed to be ± 16.8%. Available Dipoles SAR1g εr σ [S/m] [W/kg] D2450V2, SN #709 Target Values Head 13.20 38.50 1.73 D2450V2, SN #709 Target Values Body 13.60 52.60 2.00 Table 6: Dipole target results as given by the manufactures calibration certificates . dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 20 of 32 Temperature Used Dipoles SAR1g [W/kg] εr σ [S/m] Ambient Liquid [° C] [° C] 2450 MHz, Measured 13.50 38.90 1.82 21.8 21.1 SN: #709 Values Head 2450 MHz, Measured 13.30 50.60 1.99 21.8 21.1 SN: #709 Values Body Table 7: Measured dipole validation results. dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 21 of 32 Test Laboratory: Imst GmbH; File Name: 221105_y_3536.da4 DUT: Dipole 2450 MHz SN: 709; Type: D2450V2; Serial: D2450V2 - SN:709 Program Name: System Performance Check at 2450 MHz Communication System: CW; Frequency: 2450 MHz;Duty Cycle: 1:1 Medium parameters used: f = 2450 MHz; σ = 1.82 mho/m; εr = 38.9; ρ = 1000 kg/m3 Phantom section: Flat Section DASY4 Configuration: - Probe: EX3DV4 - SN3536; ConvF(7.63, 7.63, 7.63); Calibrated: 23.09.2005 - Sensor-Surface: 4mm (Mechanical Surface Detection) - Electronics: DAE4 Sn631; Calibrated: 07.07.2005 - Phantom: SAM Glycol 1340; Type: QD 000 P40 CB; Serial: TP-1340 - Measurement SW: DASY4, V4.6 Build 19; Postprocessing SW: SEMCAD, V1.8 Build 159 d=10mm, Pin=250mW/Area Scan (7x7x1): Measurement grid: dx=10mm, dy=10mm Maximum value of SAR (measured) = 15.3 mW/g d=10mm, Pin=250mW/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 91.6 V/m; Power Drift = 0.016 dB Peak SAR (extrapolated) = 29.9 W/kg SAR(1 g) = 13.5 mW/g; SAR(10 g) = 6.08 mW/g Maximum value of SAR (measured) = 15.1 mW/g dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo Fig. 10: Validation measurement 2450 MHz Head (November 22, 2005), coarse grid. Ambient Temperature: 21.8° C, Liquid Temperature: 21.1° C.

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 22 of 32 Test Laboratory: IMST GmbH, DASY Blue (I); File Name: 221105_b_3536.da4T DUT: Dipole 2450 MHz SN: 709; Type: D2450V2; Serial: D2450V2 - SN:709 Program Name: System Performance Check at 2450 MHz Communication System: CW; Frequency: 2450 MHz;Duty Cycle: 1:1 Medium parameters used: f = 2450 MHz; σ = 1.99 mho/m; εr = 50.6; ρ = 1000 kg/m3 Phantom section: Flat Section DASY4 Configuration: - Probe: EX3DV4 - SN3536; ConvF(7.58, 7.58, 7.58); Calibrated: 23.09.2005 - Sensor-Surface: 4mm (Mechanical Surface Detection) - Electronics: DAE4 Sn631; Calibrated: 07.07.2005 - Phantom: SAM Glycol 1176; Type: Speag; Serial: 1176 - Measurement SW: DASY4, V4.6 Build 19; Postprocessing SW: SEMCAD, V1.8 Build 159 d=10mm, Pin=250mW/Area Scan (7x7x1): Measurement grid: dx=10mm, dy=10mm Maximum value of SAR (measured) = 15.2 mW/g d=10mm, Pin=250mW/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 87.7 V/m; Power Drift = 0.015 dB Peak SAR (extrapolated) = 28.3 W/kg SAR(1 g) = 13.3 mW/g; SAR(10 g) = 6.03 mW/g Maximum value of SAR (measured) = 15.3 mW/g dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo Fig. 11: Validation measurement 2450 MHz body (November 22, 2005), coarse grid. Ambient Temperature: 21.8° C, Liquid Temperature: 21.1° C.

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 23 of 32 vi² Uncertainty Probability Standard Error Sources Divisor ci or 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 ∞ ± 1.0 % Rectangular √3 1 ± 0.6 % eval. Dipole Dipole Axis to Liquid ± 2.0 % Rectangular 1 1 ± 1.2 % ∞ Distance Input power and SAR drift ± 4.7 % Rectangular √3 1 ± 2.7 % ∞ mea. 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 % ∞ dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo Liquid permittivity (meas.) ± 2.5 % Normal 1 0.6 ± 1.5 % ∞ Combined Uncertainty ± 8.4 % Table 8: Uncertainty budget for the system performance check.

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 24 of 32 8.6 Environment To comply with the required noise level (less than 12 mW/kg) periodically measurements without a DUT were conducted. Humidity: 40% ± 5 % 8.7 Test Equipment Last Next Test Equipment Model Serial Number Calibration Calibration DASY4 Systems Software Versions DASY4 V4.6 N/A N/A N/A Software Versions SEMCAD V1.8 N/A N/A N/A Dosimetric E-Field Probe EX3DV4 3536 08/2005 08/2006 Data Acquisition Electronics DAE 4 631 07/2005 07/2006 Phantom SAM 1059 N/A N/A Phantom SAM 1176 N/A N/A Phantom SAM 1340 N/A N/A Phantom SAM 1341 N/A N/A Dipoles Validation Dipole D2450V2 709 07/2005 07/2006 Material Measurement Network Analyzer HP8753D 3410A06555 12/2004 12/2005 Dielectric Probe Kit HP85070B US33020263 N/A N/A Table 9: SAR equipment. dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 25 of 32 Last Next Test Equipment Model Serial Number Calibration Calibration Power Meters Power Meter, Agilent E4416A GB41050414 12/2004 12/2005 Power Sensors Power Sensor, Agilent E9301H US40010212 12/2004 12/2005 Power Sensor, Agilent E9301A MY41495584 12/2004 12/2005 RF Sources Network Analyzer HP8753D 3410A06555 12/2004 12/2005 Rohde & Schwarz SME300 100142 N/A N/A Amplifiers Mini Circuits ZHL-42 D012296 N/A N/A Mini Circuits ZHL-42 D031104#01 N/A N/A Mini Circuits ZVE-8G D031004 N/A N/A Radio Tester Radio Tester, Rohde & Schwarz CMU200 835305/050 01/2005 01/2006 Radio Tester, Willtek 4202S 0813151 N/A N/A Table 10: Test equipment, General. dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 26 of 32 8.8 Certificates of conformity dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo Fig. 12: Certificate of conformity for the used SAM phantom

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 27 of 32 8.9 Pictures of the device under test Fig. 13 – 15 show the device under test and the used accessories. Fig. 13: Picture of the device under test dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo Fig. 14: Side view of the device.

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 28 of 32 Fig. 15: Used headset “Mic in Cable” (653075). dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 29 of 32 8.10 Test Positions for the Device under Test Fig. 16 – Fig. 22 shown the test positions for the SAR measurements. Fig. 16: Cheek position, left side. dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo Fig. 17: Tilted position, left side.

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 30 of 32 Fig. 18: Cheek position, right side. dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo Fig. 19: Tilted position, right side.

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 31 of 32 Fig. 20: Body worn configuration, with headset, display the phantom. 10 mm Fig. 21: Body worn configuration, with headset cable, antenna towards the phantom. dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo Fig. 22: Body worn configuration, without headset, display the phantom.

SAR Report, Nemko_6620_551_FCC_WLAN_Handset_Katy Page 32 of 32 8.11 Pictures to demonstrate the required liquid depth Fig. 23 show the liquid depth in the used SAM phantom. Fig. 23: Liquid depth for 2.45 GHz WLAN Head and Body measurements. 9 References [OET 65] Federal Communications Commission: Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields, Supplement C (Edition 01-01) to OET Bulletin 65 (Edition 97-01), FCC, 2001. [IEEE C95.1] IEEE Std C95.1-1999: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz, Inst. of Electrical and Electronics Engineers, Inc., 1999. [IEEE 1528-2003] IEEE Std 1528-2003: IEEE Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques. 1528-2003, December 19, 2003, The Institute of dasy_report_fcc_1900_4.4.doc/14.09.2005/ABo Electrical and Electronics Engineers. [NIST 1994] NIST: Guidelines for Evaluating and Expressing the Uncertainty of NIST Measurement Results, Technical Note 1297 (TN1297), United States Department of Commerce Technology Administration, National Institute of Standards and Technology, 1994. [DASY4] Schmid & Partner Engineering AG: DASY4 Manual. August 2004 [FCC 96-326] FCC 96-326, ET Docket No. 93-62, Report and Order, August 1, 1996


Document Created: 2005-12-06 15:23:56
Document Modified: 2005-12-06 15:23:56
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