AL8-A500Bluetooth Class 2 Device

CORDLESS HEADSET SOLUTION WITH BLUETOOTH™ M1500 QUICK START AND INFORMATION GUIDE PARTS AND ACCESSORIESIMPORTANT SAFETY INSTRUCTIONS OTHER IMPORTANT INSTRUCTIONS ABOUT PLANTRONICS CORDLESS HEADSET SOLUTION WITH BLUETOOTH™ Your Plantronics M1500cordless headset solution utilizes 2.4GHz Bluetooth technology to provide lightweight, hands-free and wire-free communication for your headset-ready mobile phone. Designed for maximum comfort and ease of use, this cordless headset solution is tailored to suit your mobile lifestyle. This guide will help you set up and use your cordless headset. Your headset is compliant with version 1.1of the Bluetooth Specification and supports the Headset Profile. The adapter unit also supports the Audio Gateway Profile. For accessibility information call the Plantronics Technical Assistance Center (TAC)at (800) 544-4660or visit www.plantronics.com. M1500 BATTERY Replacement battery for headset or adapter, 2.4V Nickel Metal Hydride (NiMH). M1500 FLEXIBLE EARLOOP Replacement headset earloop. AC ADAPTER 110-Volt AC Adapter. Replacement AC adapter/charger for North America. 220-Volt AC Adapter. Replacement AC adapter/charger for Europe. 220-Volt UK AC adapter. Replacement AC adapter/charger for United Kingdom. CAR LIGHTER ADAPTER Optional car lighter Y-adapter allows you to charge your M1500 headset, adapter and one other device from any 12-Volt car lighter socket. M1500 HEADSET Replacement headset for your M1500 system. Battery included. A500 ADAPTER Replacement adapter for your M1500 system. Battery included. PAIRING TO ANOTHER DEVICE FIG. 7.1A FIG. 7.1B FIG. 7.2 FIG. 7.3 WARRANTY AND SERVICES IN THE UNITED STATESIN CANADA Plantronics Service Center Plantronics Service Center 345 Encinal Street 1455 Pitfield Boulevard Santa Cruz, Saint-Laurent, CA 95060 Quebec H4S lG3 Tel:800.544.4660 Tel:800.540.8363 (toll free) (toll free) 514.956.8363 (toll call) Fax: 800.279.0162 Fax: 514.956.1825 (toll free) (toll call) Please use the original container, or pack the unit(s) in a car ton with sufficient packing material to prevent damage. Include the following information: 1. Proof of purchase indicating model number and date of purchase. 2. Bill-to address. 3. Ship-to address. 4. Number and description of units shipped. 5. Name and telephone number of person to call, should con- tact be necessary. 6. Reason for return and description of the problem. The following one-year warranty and service information applies only to product purchased and used in the U.S. and Canada. Contact your local retail dealer for warranty informa- tion in your country. During this warranty time, if the product is defective in workmanship or materials, Plantronics, at our option, will replace or exchange it for a model of equal value. Damage caused by improper care, accidents, unauthorized repair or modifications are not covered under this warranty. NEITHER PLANTRONICS NOR YOUR RETAIL DEALER OR SELLING DISTRIBUTOR HAS ANY RESPONSIBILITY FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, DAMAGE TO PROP- ERTY, COMMERCIAL LOSS OF PROFIT, OR FOR ANY EXPENSES, LOSS OF TIME, OR INCONVENIENCE. SOME STATES DO NOT ALLOW EXCLUSION OR LIMITA- TION OF INCIDENTAL OR CONSEQUENTIAL DAMAGE, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU. To obtain warranty service, please prepay shipment and return the unit to the appropriate facility listed at right: Consult the dealer or an experienced radio/TV technician for help. NOTE: Modifications not expressly approved by Plantronics, Inc. could void the user's authority to operate the equipment. EXPOSURE TO RADIO FREQUENCY RADIATION The radiated output power of this internal wireless radio is far below the FCC radio frequency exposure limits. Never- theless, the wireless radio shall be used as described in the manual. The internal wireless radio operates within guidelines found in radio frequency safety standards and recom- mendations, which reflect the consensus of the scientific community. Plantronics therefore believes the internal wireless radio is safe for use by consumers. The level of energy emitted is far less than the electromagnetic energy emitted by wire- less devices such as mobile phones. However, the use of wireless radios may be restricted in some situations or envi- ronments, such as aboard airplanes. If you are unsure of restrictions, you are encouraged to ask for authorization before turning on the wireless radio. REPLACING THE ADAPTER BATTERY FIG. 6.1 – Loosen and remove the two screws on the bottom of the adapter using a small Philips screwdriver. FIG. 6.2 – Lift the cover and remove the battery. Insert a new battery so the (+) and (-) symbols correspond correctly to the labels inside the battery compartment. Replace the bottom cover and insert and tighten the two screws. Be careful not to over tighten the screws. BLUETOOTH PAIRING Use these instructions only if you replace either the headset or adapter in your system. Your M1500 headset and adapter are already paired when you receive them. See Section 7 for instructions on pairing just the head- set to a Bluetooth enabled mobile phone. FIG. 6.3 – PAIRING THE HEADSET AND ADAPTER Make sure both devices are turned on. See Section 5 for more details. Press and HOLD the POWER button on the adapter unit for about 10 seconds, or until the INDICATOR light begins to flash red. Now, PUSH IN and HOLD the headset MUTE/VOL- UME dial until the INDICATOR light begins to flash. The pairing process should take about 15–30 seconds. If pairing is successful, the headset will sound a tone and both the headset and adapter INDICATOR lights will turn off. If pairing fails, the headset INDICATOR will stop blink- ing after 60 seconds and return to standby mode. It will not sound a tone. Also, the adapter INDICATOR will light red for 2 seconds and then turn off. Repeat the pairing process. You may also use the headset alone with a compatible Bluetooth mobile device. The following instructions sho…

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M1500 RF Block Diagram (M1000 Headset and A500 Adapter) BALUN X2BALUN DEMOD DC OFFSET REG SYNTH REG ANTENNA BANDPASS FILTER T/R SWITCH RSSI S_EN/CLK/DATA T_EN, R_ON REF CLK CP_TUNE CHARGEPUMP CURRENT CTRL LOGIC T_GFSK R_DATA DATA- Receive Transmit 13MHz Crystal

Answers to your questions: 1) Use of this device appears that it may conflict with mobile phone grants having the following restrictions: "Body-worn operations are restricted to belt-clips, holsters or similar accessories that have no metallic components in the assembly..." and "SAR compliance for body-worn operating configurations is limited to the specific belt-clips/holsters/accessories tested for this filing." Please comment. Depending on your response, grant restrictions may be needed for operation only with specific phones. Answer 1) Measurements were performed to determine the influence of the EUT on a dominant transmitter's SAR. Please see the attached test report(SAR_249_2002_FCC_1900_2450). 2) Apr02 TCB notes Portable pg 12 refers "separately configured portable devices that operate in a co-located transmission environment," which is applicable to this filing. Analogy can be made to July02 TCB Excl List Tx Categ II) e), which for example says TCB can approve a mobile phone containing Bluetooth less than 5mW. However this filing does not contain a dominant transmitter. Grant note for no colocation is not appropriate. One way to begin to address the colocation issue is as follows. Since device will always be used with a mobile phone, SAR evaluation with one or more dominant transmitter (phone) options should be done, e.g., one or more granted handsets operating in Parts 22 & 24. For handset modes and channels that produced the highest body-worn SAR, repeat those configurations with Bluetooth belt-clip installed and transmitting (hopping disabled). More specifically, the following tests are recommended: a) phone with this belt-clip installed but switched off b) setup a) with both phone and this belt-clip transmitting Test results from one handset would need to be reviewed by FCC to determine if additional testing would be needed to determine compliance. Depending on your response and/or test results, grant restrictions may be needed for operation only with specific phones. Answer 2) Measurements were performed to determine the influence of the EUT on a dominant transmitter's SAR. Please see the attached test report(SAR_249_2002_FCC_1900_2450). 3) What is expected spacing from phone to body when this device is installed on phone? Answer 3) 1.5 cm. 4) Op desc is for M1000 headset. Please submit op desc for A500 adapter. Answer 4) See attached file(Technical Description of the A500 Product).

Technical Description of the M1000 HeadsetJGM 5/30/02 The M1000 is a Bluetooth ™ Class 2 (2.5mW maximum) device, which receives and transmits in the frequency range of 2.402-2.480GHz. It is a spread spectrum (frequency hopping) headset; 79 channels, 1MHz Bandwidth, frequency hops at 1600 hops/second per the Bluetooth standard. The product communicates with other Bluetooth products using a Time division duplex scheme that alternates transmission and receive functions, and thus uses the same antenna to transmit and receive at different times. The Philips Baseband chip controls the Philips radio chip, provides voltage regulation, battery charging, and is provided its clock input from the 13MHz crystal oscillator. The same omni directional -3dBi antenna is used to send and receive RF signals. Battery charging is done with a pulse width modulation to charge a 150-170mAH rechargeable Nickel Metal Hydride battery. The headset can communicate with other Bluetooth ™ products that support the Headset Profile. See the user guide for basic operation of the products.

Technical Description of the A500 Adapter The A500 is a Bluetooth ™ Class 2 (2.5mW maximum) adapter device, which receives and transmits in the frequency range of 2.402-2.480GHz. It is a spread spectrum (frequency hopping) headset; 79 channels, 1MHz Bandwidth, frequency hops at 1600 hops/second per the Bluetooth standard. The product communicates with other Bluetooth headsets using a Time division duplex scheme that alternates transmission and receive functions, and thus uses the same antenna to transmit and receive at different times. The Philips Baseband chip controls the Philips radio chip, provides voltage regulation, battery charging, and is provided its clock input from the 13MHz crystal oscillator. The same omni directional -3dBi antenna is used to send and receive RF signals. Battery charging is done with a pulse width modulation to charge a 150-170mAH rechargeable Nickel Metal Hydride battery. The A500 is a Bluetooth ™ adapter intended to be used with non- Bluetooth ™ phones. It is hardwired with a standard 2.5 mm 3 conductor plug, 2.5 mm 4 conductor plug, and Nokia specific adapter. The A500 adapter is intended to be connected with the M1000 Bluetooth ™ headset to allow non- Bluetooth ™ phone users to become Bluetooth ™ enabled.

CETECOM Inc. 411 Dixon Landing Road
Milpitas, CA 95035
U.S.A. Phone: + 1 (408) 586 6200
Fax: + 1 (408) 586 6299
E-mail: [email protected]
http://www.cetecom.com CETECOM Inc. is a Delaware Corporation with Corporation number: 2113686 Board of Directors: Dr. Harald Ansorge, Dr. Klaus Matkey, Hans Peter May V.2.16M-2002-03-12 g:\emc\projects\plantronics\249-2002_adapter\sar\report\sar_249_2002_fcc_1900_2450.doc © Copyright by CETECOM SAR Test Report No.: SAR_249_2002_FCC_1900_2450 for the Plantronics 2402MHz – 2480MHz Bluetooth Adapter Model Number: A500 FCC ID: AL8-A500 Date of Report: 12/04/2002 Date of issue: 12/04/2002 Report Copy No.: 01 SAR Test Report No. SAR_249_2002_FCC_1900_2450 Date of Report: 12/04/2002 Page 2 of 28 V.2.16M-2002-03-12 This report shall not be reproduced except in full without the written approval of: CETECOM Inc.
SAR
411 Dixon Landing Road
Milpitas, CA 95035
U.S.A. Contents 1. ASSESSMENT ................................................................................................................ 4 2. ADMINISTRATIVE DATA ................................................................................................ 5 2.1. Identification of the Testing Laboratory Issuing the SAR Assessment Report.............. 5 2.2. Identification of the Client ........................................................................................ 5 2.3. Identification of the Manufacturer ............................................................................ 5 3. EQUIPMENT UNDER INVESTIGATION (EUI)................................................................. 6 3.1. Identification of the Equipment under Investigation ................................................. 6 3.2. Front View of the Equipment under Investigation .................................................... 7 4. SUBJECT OF INVESTIGATION ...................................................................................... 8 4.1. The IEEE Standard C95.1 and the FCC Exposure Criteria...................................... 8 4.2. Distinction Between Exposed Population, Duration of Exposure and Frequencies .. 8 4.3. Distinction between Maximum Permissible Exposure and SAR Limits..................... 9 4.4. SAR Limit ................................................................................................................ 9 5. THE FCC MEASUREMENT PROCEDURE................................................................... 10 5.1. General Requirements .......................................................................................... 10 5.2. Device Operating Next to a Person’s Ear .............................................................. 10 5.3. Test Positions........................................................................................................ 11 5.4. Test positions of device relative to head................................................................ 11 5.5. Test to be Performed............................................................................................. 14 5.6. Body-worn and Other Configurations.................................................................... 14 5.7. Procedure for assessing the peak spatial-average SAR ........................................ 15 5.8. Determination of the largest peak spatial-average SAR ........................................ 17 6. THE MEASUREMENT SYSTEM.................................................................................... 18 6.1. Robot system specification.................................................................................... 18 6.2. Probe and amplifier specification........................................................................... 19 6.3. Phantoms.............................................................................................................. 19 SAR Test Report No. SAR_249_2002_FCC_1900_2450 Date of Report: 12/04/2002 Page 3 of 28 V.2.16M-2002-03-12 This report shall not be reproduced except in full without the written approval of: CETECOM Inc.
SAR
411 Dixon Landing Road
Milpitas, CA 95035
U.S.A. 6.4. SAR measurement procedure ............................................................................... 20 6.5. SARA2 Interpolation and Extrapolation schemes.................................................. 20 6.6. Interpolation of 2D area scan ................................................................................ 21 6.7. Extrapolation of 3D scan ....................................................................................... 21 6.8. Interpolation of 3D scan and volume averaging..................................................... 21 7. UNCERTAINTY ASSESSMENT ....................................................................................23 7.1. Measurement Uncertainty Budget ......................................................................... 24 8. TEST RESULTS SUMMARY ......................................................................................... 25 8.1. Test configurations: ............................................................................................... 25 8.2. Body SAR results for GSM 1900MHz band for A500............................................. 26 8.3. Measurement Conclusions: ................................................................................... 26 8.4. Validation Check Results....................................................................................... 27 9. REFERENCES............................................................................................................... 28 SAR Test Report No. SAR_249_2002_FCC_1900_2450 Date of Report: 12/04/2002 Page 4 of 28 V.2.16M-2002-03-12 This report shall not be reproduced except in full without the written approval of: CETECOM Inc.
SAR
411 Dixon Landing Road
Milpitas, CA 95035
U.S.A. 1. Assessment The Plantronics A500 bluetooth adapter is in compliance with the exposure criteria specified in Fed…

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SAR Test Report No : SAR_249_2002_FCC_1900_2450 Date of Report: 12/04/2002 Appendix A Page 1 of 5 Appendix A: Measurement Plots Plot 1. Date: 12/03/2002 Temperature Air / Liquid: 21.0
C / 21.0
C Liquid mass density (
): 1 DCP 1 X=9, Y=13.6, Z=8.7 Probe factors (S/N 0123) (ConvF): 0.610 Simulated tissue dielectric parameters:  r :53.16 : 1.576 Position: Ericsson phone only, 1.5cm phone to phantom. Operating mode: Cell-phone TX Cell-phone Channel / Frequency 661 / 1880 MHz EUT Channel / Frequency N/A Maximum 1 gram SAR: 0.221W/Kg Maximum 10 gram SAR: 0.133W/Kg Power reference start: 0.074W/Kg Power reference end 0.076W/Kg Power reference change 2 1.78% 1 DCP: Diode compression potential for different types of modulation is determined during the calibration of the probe. See section 6.2 of this report Probe and Amplifier Specification. Crest factor is not used. 2 The power reference change is calculated by the test system with more digits than indicated in the power reference start and end values. SAR Test Report No : SAR_249_2002_FCC_1900_2450 Date of Report: 12/04/2002 Appendix A Page 2 of 5 Plot 2. Date: 12/03/2002 Temperature Air / Liquid: 21.0
C / 21.0
C Liquid mass density (
): 1 DCP 1 X=9, Y=13.6, Z=8.7 Probe factors (S/N 0123) (ConvF): 0.610 Simulated tissue dielectric parameters:  r :53.16 : 1.576 Position: Ericsson phone and EUT both in belt worn position, 1.5cm phone/EUT to phantom. (EUT configuration #1) Operating mode: Cell-phone TX, EUT off Cell-phone Channel / Frequency 661 / 1880 MHz EUT Channel / Frequency N/A Maximum 1 gram SAR: 0.239W/Kg Maximum 10 gram SAR: 0.142W/Kg Power reference start: 0.083W/Kg Power reference end 0.079W/Kg Power reference change 2 -4.39% 1 DCP: Diode compression potential for different types of modulation is determined during the calibration of the probe. See section 6.2 of this report Probe and Amplifier Specification. Crest factor is not used. 2 The power reference change is calculated by the test system with more digits than indicated in the power reference start and end values. SAR Test Report No : SAR_249_2002_FCC_1900_2450 Date of Report: 12/04/2002 Appendix A Page 3 of 5 Plot 3. Date: 12/03/2002 Temperature Air / Liquid: 21.0
C / 21.0
C Liquid mass density (
): 1 DCP 1 X=9, Y=13.6, Z=8.7 Probe factors (S/N 0123) (ConvF): 0.610 Simulated tissue dielectric parameters:  r :53.16 : 1.576 Position: Ericsson phone and EUT both in belt worn position, 1.5cm phone/EUT to phantom. (EUT configuration #1) Operating mode: Cell-phone TX, EUT TX hopping off Cell-phone Channel / Frequency 661 / 1880 MHz EUT Frequency 2440 MHz Maximum 1 gram SAR: 0.235W/Kg Maximum 10 gram SAR: 0.140W/Kg Power reference start: 0.081W/Kg Power reference end 0.079W/Kg Power reference change 2 -3.11% 1 DCP: Diode compression potential for different types of modulation is determined during the calibration of the probe. See section 6.2 of this report Probe and Amplifier Specification. Crest factor is not used. 2 The power reference change is calculated by the test system with more digits than indicated in the power reference start and end values. SAR Test Report No : SAR_249_2002_FCC_1900_2450 Date of Report: 12/04/2002 Appendix A Page 4 of 5 Plot 4. Date: 12/03/2002 Temperature Air / Liquid: 21.0
C / 21.0
C Liquid mass density (
): 1 DCP 1 X=9, Y=13.6, Z=8.7 Probe factors (S/N 0123) (ConvF): 0.610 Simulated tissue dielectric parameters:  r :53.16 : 1.576 Position: EUT attached to ericsson cell-phone. 1.5cm phone to phantom, EUT touching phantom. (EUT configuration #2) Operating mode: Cell-phone TX, EUT off Cell-phone Channel / Frequency 661 / 1880 MHz EUT Channel / Frequency N/A Maximum 1 gram SAR: 0.249W/Kg Maximum 10 gram SAR: 0.148W/Kg Power reference start: 0.085W/Kg Power reference end 0.083W/Kg Power reference change 2 -2.98% 1 DCP: Diode compression potential for different types of modulation is determined during the calibration of the probe. See section 6.2 of this report Probe and Amplifier Specification. Crest factor is not used. 2 The power reference change is calculated by the test system with more digits than indicated in the power reference start and end values. SAR Test Report No : SAR_249_2002_FCC_1900_2450 Date of Report: 12/04/2002 Appendix A Page 5 of 5 Plot 5. Date: 12/03/2002 Temperature Air / Liquid: 20.9
C / 21.0
C Liquid mass density (
): 1 DCP 1 X=9, Y=13.6, Z=8.7 Probe factors (S/N 0123) (ConvF): 0.610 Simulated tissue dielectric parameters:  r :53.16 : 1.576 Position: EUT attached to ericsson cell-phone. 1.5cm phone to phantom, EUT touching phantom. (EUT configuration #2) Operating mode: Cell-phone TX, EUT TX hopping off Cell-phone Channel / Frequency 661 / 1880 MHz EUT Channel / Frequency 2440 MHz Maximum 1 gram SAR: 0.240W/Kg Maximum 10 gram SAR: 0.139W/Kg Power reference start: 0.084W/Kg Power reference end 0.084W/Kg Power reference change 2 0.00% 1 DCP: Diode compression potential for different types of modulation is determined during the calibration of the probe. See section 6.2 of this report Probe and Amplifier Specification. Crest factor is not used. 2 The power reference change is calculated by the test system with more digits than indicated in the power reference start and end values.

SAR Test Report No.: SAR_249_2002_FCC_1900_2450 Date of Report:12/04/2002 Appendix B Page 1 of 8 Appendix B: Photos EUT Photos Photo 1: EUT front. SAR Test Report No.: SAR_249_2002_FCC_1900_2450 Date of Report:12/04/2002 Appendix B Page 2 of 8 Photo 2: EUT back. SAR Test Report No.: SAR_249_2002_FCC_1900_2450 Date of Report:12/04/2002 Appendix B Page 3 of 8 Set-up Photos Photo 3: Ericsson phone only. SAR Test Report No.: SAR_249_2002_FCC_1900_2450 Date of Report:12/04/2002 Appendix B Page 4 of 8 Photo 4:Ericsson phone and EUT both in belt worn position (EUT configuration #1). SAR Test Report No.: SAR_249_2002_FCC_1900_2450 Date of Report:12/04/2002 Appendix B Page 5 of 8 Photo 5: Side view Ericsson phone and EUT both in belt worn position (EUT configuration #1). SAR Test Report No.: SAR_249_2002_FCC_1900_2450 Date of Report:12/04/2002 Appendix B Page 6 of 8 Photo 6: EUT attached to ericsson cell-phone. 1.5cm phone to phantom, EUT touching phantom (EUT configuration #2). SAR Test Report No.: SAR_249_2002_FCC_1900_2450 Date of Report:12/04/2002 Appendix B Page 7 of 8 Photo 7: Distance cell-phone to phantom (all configurations). SAR Test Report No.: SAR_249_2002_FCC_1900_2450 Date of Report:12/04/2002 Appendix B Page 8 of 8 Photo 8: Photo to demonstrate 15 cm Z-axis flat phantom.

SAR Test Report No: SAR_249_2002_FCC_1900_2450 Date of Report:12/04/2002 Appendix C Page 1 of 23 Simulant Tissue Parameters: 1900MHz Head: The following recipe is provided in percentage by weight. 54.9% distilled water 44.92% DGBE 0.18% salt 0.1% bactericide Di-electric constants measured on 12/03/2002. SAR measurements were made within 24 hours of the measurement of liquid parameters. 21.0
C Freq. Rel. Condy (MHz) Perm. (S/m) 1900 38.63 1.456 1900MHz Body: The following recipe is provided in percentage by weight. 69.17% distilled water 30.29% DGBE 0.44% salt 0.1% bactericide Di-electric constants measured on 12/03/2002. SAR measurements were made within 24 hours of the measurement of liquid parameters. 21.0
C Freq. Rel. Condy (MHz) Perm. (S/m) 1850.2 53.35 1.563 1880 53.16 1.576 1909.8 52.96 1.58 Conductivity 1.4 1.45 1.5 1.55 1.6 1.65 1850187018901910 frequency (MHz) conductivity (S/m) 1900Body liquid 1528 std +5% -5% Permittivity 49 50 51 52 53 54 55 56 57 1850187018901910 frequency (MHz) relative permittivity 1900Body liquid 1528 std +5% -5% Environment: Temperature: 20.9
C to 21.0
C Humidity: 45% _ 55 % SAR Test Report No: SAR_249_2002_FCC_1900_2450 Date of Report:12/04/2002 Appendix C Page 2 of 23 Test Equipment: Test Equipment Model Serial Instrument description Supplier/Manufacturer Model Serial No. Calibration (date) Bench top Robot Mitsubishi supplied by Indexsar RV-E2 Serial No. N/A SAM Phantom Upright shell phantom made by Antennessa digitized and mounted by Indexsar SAM 04/02 FT08 N/A 1900MHz Head Tissue Simulant Cetecom Inc. 1900 Head N/A 12/03/2002 1900MHz Body Tissue Simulant Cetecom Inc. 1900 Body N/A 12/03/2002 1900MHz Dipole IndexSAR – IEEE 1528 design IXD-190 0016 7/30/2002 Netwok Analyzer Agilent 8753ES US39172511- 04/04/2002- RF Amplifier Vectawave N/A N/A N/A Power Meter Rohde and Schwartz NRVD 836875/020 5/2002 Power Sensor Rohde and Schwartz URV5-Z2 836029/034 5/2002- Power Sensor Rohde and Schwartz URV5-Z2 836029/035 5/2002- SAR Probe IndexSAR IXP-050 S/N 0123 10/25/2002 Probe amplifier Indexsar IXA-010 S/N 043 N/A- Thermometer Control Company 4039 20410549 11/20/2002 SAR Test Report No: SAR_249_2002_FCC_1900_2450 Date of Report:12/04/2002 Appendix C Page 3 of 23 IMMERSIBLE SAR PROBE CALIBRATION REPORT Part Number: IXP – 050 S/N 0123 25 th October 2002 Indexsar Limited Oakfield House Cudworth Lane Newdigate Surrey RH5 5DR Tel: +44 (0) 1306 631 233 Fax: +44 (0) 1306 631 834 e-mail: [email protected] SAR Test Report No: SAR_249_2002_FCC_1900_2450 Date of Report:12/04/2002 Appendix C Page 4 of 23 INTRODUCTION This Report presents measured calibration data for a particular Indexsar SAR probe (S/N 0123) and describes the procedures used for characterisation and calibration. Indexsar probes are characterised using procedures that, where applicable, follow the recommendations of CENELEC [1] and IEEE [2] standards. The procedures incorporate techniques for probe linearisation, isotropy assessment and determination of liquid factors (conversion factors). Calibrations are determined by comparing probe readings with analytical computations in canonical test geometries (waveguides) using normalised power inputs. Each step of the calibration procedure and the equipment used is described in the sections below. CALIBRATION PROCEDURE 1. Equipment Used For the first part of the characterisation procedure, the probe is placed in an isotropy measurement jig as pictured in Figure 1. In this position the probe can be rotated about its axis by a non-metallic belt driven by a stepper motor. The probe is attached via its amplifier and an optical cable to a PC. A schematic representation of the test geometry is illustrated in Figure 2. A balanced dipole (900 MHz) is inserted horizontally into the bracket attached to a second belt (Figure 1). The dipole can also be rotated about its axis. A cable connects the dipole to a signal generator, via a directional coupler and power meter. The signal generator feeds an RF amplifier at constant power, the output of which is monitored using the power meter. The probe is positioned so that its sensors line up with the rotation center of the source dipole. By recording output voltage measurements of each channel as both the probe and the dipole are rotated, data are obtained from which the spherical isotropy of the probe can be optimised and its magnitude determined. The calibration process requires E-field measurements to be taken in air, in 900 MHz simulated brain liquid and at other frequencies/liquids as appropriate. 2. Linearising probe output The probe channel output signals are linearised in the manner set out in Refs [1] and [2]. The following equation is utilized for each channel: U lin = U o/p + U o/p 2 / DCP (1) where U lin is the linearised signal, U o/p is the raw output signal in voltage units and DCP is the diode compression potential in similar voltage units. SAR Test Report No: SAR_249_2002_FCC_1900_2450 Date of Report:12/04/2002 Appendix C Page 5 of 23 DCP is determined from fitting equation (1) to measurements of U lin versus source feed power over the full dynamic range of the probe. The DCP is a characteristic of the schottky diodes used as the sensors. For the IXP-050 probes with CW signals the DCP values are typically 0.10V (or 20 in the voltage units used by Indexsar software, which are V*200). 3. Selecting channel sensitivity factors to optimise isotropic response The basic measurements obtained using the calibration jig (Fig 1) represent the output from each diode sensor as a function of the presentation angle of the source (probe and dipole rotation angles). The directionality of the orthogonally-arranged sensors can be checked by analysing the data using dedicated Indexsar software, which displays the data in 3D format as in Figure 3. The left-hand side of this diagram shows the individual channel outputs after linearisation (see above). The program uses these data to balance the channel outputs and then applies an op…

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CETECOM Inc. CETECOM Inc. 411 Dixon Landing Road, Milpitas, CA-95035, USA Phone: +1 408 586 6200 Fax: +1 408 586 6299 www.cetecom.com Issued test report consists of 48 Pages Page 1 (48) FCC LISTED, REG. NO.: 101450 & RECOGNIZED BY INDUSTRY CANADA IC – 3925 Test report no.: 249FCC/2002 FCC Part 15.247 (M500 Bluetooth adapter & M1000 Bluetooth Headset) CETECOM Inc. Test report no.:249FCC/2002 Issue date:2002-01-29 Page 2 (48) Table of Con…

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