QBI-1002CardioNet Transceiver

July 25, 2002 Steve Dayhoff FCC Application Processing Branch Re: FCC ID QBI-1002 Applicant: Cardionet Correspondence Reference Number: 23367 731 Confirmation Number: EA405725 Dear Mr. Dayhoff, With follow up to your questions that I received today from Judy Evans at TUV. SDayhoff:Please correct the User Manual RF Exposure statement regarding the SAR test distance of 4 cm from the body. Since the SAR testing was performed with the device touching the phantom, this would be misleading. CardioNet:We successfully went through our SAR testing and the Caution information is incorrect. We are not a mobile device we are a portable. If you review again the SAR measurements made we are far below the maximum allowable. Which is to say that our device can be used in the hand, worn about the waist or carried in a purse or trousers. SDayhoff:Is the antenna the same as in the sensor? CardioNet:Both the Sensor and the Monitor use an identical TRF 6900 Transceiver chipset by Texas Instruments. The perimeter components are the same. After our saw filter the antennas are match to into 50 ohms. The Sensor uses an external dipole w hile the Monitor uses a internal dipole. 510 MARKET STREET SAN DIEGO, CA 92101 UNITED STATES TELEPHONE: 619.243.7500 FAX: 619.243.7700 WWW.CARDIONET.COM ! Page 2July 25, 2002 SDayhoff:Explanation of the transceiver CardioNet:Our wireless ISM communication link for the frequencies covering 902MHz to 928MHz are identical circuits for both the Sensor (QBI-1001) and our Monitor (QBI-1002). This can be observed by reviewing our schematics which were submitted along with all our test data for the emissions portion of our testing. Our ISM data transmission is as follows: The Sensor is worn by the Patient and with defined placement location for the electrodes will pick up t he ECG or electrical impulses from the heart which then transmitted wirelessly to our Monitor (QBI-1002) which receives the data being transmitted and stores the arrhythmic information. Our RF circuit for accomplishing this is a TRF 6900 transceiver chip produced by Texas Instruments. This device integrates both digital and RF technologies to form a frequency agile transceiver for half-duplex for the RF data link. It operates in the North American (902 – 928 MHz) ISM bands at an output power level of less than a milliwatt. With the frequency of 3 to 4 times a day the information stored in the Monitor will be sent to our Monitoring Center wirelessly over the CDPD network with an on-board CDPD wireless modem we purchase from Novatel Wireless who is the end manufacturer who FCC ID number is NBZNRM-6832. SDayhoff:Need the separate schematics for the transceivers. CardioNet:Below is the Sensor Sch.Below is the Monitor Sch. Acrobat Document Acrobat Document Please feel free to contact me with any concerns or question you may have to assist in you approval process. Best regards, Gary Thomas Sr. Hardware Design & System Engineer 510 Market Street San Diego, CA 92101 619.243.7530 [email protected]

TÜV PRODUCT SERVICE 10040 Mesa Rim Road San Diego, CA 92121-2912 Phone 858 546 3999 FAX 858 546 0364 Report No. 201108-08 Part 15 Page 1 Rev.No 1.0 MEASUREMENT AND TECHNICAL REPORT CARDIONET 510 Market Street San Diego, CA 92101 DATE: 15 April 2002 This Report Concerns: Original Grant: X Class II Change: Equipment Type: Cardionet ECG Monitor with Arrhythmia Detection, Model 1001 Deferred grant requested per 47 CFR 0.457(d)(1)(ii)? Yes: Defer until: No: X Company Name agrees to notify the Commission by: N/A of the intended date of announcement of the product so that the grant can be issued on that date. Transition Rules Request per 15.37? Yes: *No: X (*) FCC Part 15, Paragraph 15.107(a); 15.109(a); 15.249 Report Prepared by: TÜV PRODUCT SERVICE 10040 Mesa Rim Road San Diego, CA 92121-2912 Phone: 858 546 3999 Fax: 858 546 0364 TÜV PRODUCT SERVICE 10040 Mesa Rim Road San Diego, CA 92121-2912 Phone 858 546 3999 FAX 858 546 0364 Report No. 201108-08 Part 15 Page 2 Rev.No 1.0 TABLE OF CONTENTS Pages 1 GENERAL INFORMATION 3 1.1 Product Description 3 1.2 Related Submittal Grant 5 1.3 Tested System Details 5 1.4 Test Methodology 5 1.5 Test Facility 5 2 SYSTEM TEST CONFIGURATION 6 2.1 Justification 6 2.2 EUT Exercise Software 6 2.3 Special Accessories 6 2.4 Equipment Modifications 6 2.5 Configuration of Tested System 6 3 RADIATED EMISSION EQUIPMENT/DATA 7 Field Strength Calculation 17 4 CONDUCTED EMISSION EQUIPMENT/DATA 18 5 Attestation Statement 24 Form EMC Test Plan and Constructional Data Form EUT Description Ambulatory ECG Monitor with Arrhythmia Detection EUT Name CardioNet ECG Monitor with Arrhythmia Detection Model No.: 1001 Serial No.: Product Options: None Configurations to be tested: Standard Operational Mode Power Requirements Voltage: 15VDC (If battery powered, make sure battery life is sufficient to complete testing.) Current (Amps/phase(max)): 1.1 Current (Amps/phase(nominal)): 0.5 Typical Installation and/or Operating Environment For use at home by a heart patient. EUT Power Cable Permanent OR Removable Length (in meters): 3m wall adapter EUT Interface Ports and Cables Interface Shielding Type Type Termination Connector Type Port Termination 56kbs Analog Modem 2 Twisted Pair POTS 4 RS-232 1 Foil over twisted pairs Molded Insulated DB9 Standard RS-232 Termination 1 EUT Software . Revision Level: Rev. 76 Description: CardioNet embedded software load EUT Operating Modes to be Tested 1. Typical Operating Mode. 2. Monitor placed in continuous CW operation for radiated power tests. 3. Sensor placed in continuous CW operation for radiated power tests. FILE: EMCU_F09.02E, REVISION 0, Effective: October 26, 1999 Page 1 of 6 Form EMC Test Plan and Constructional Data Form EUT System Components Description Model # Serial # FCC ID # Monitor Unit 1001 Sensor Unit None Base Unit None Oscillator Frequencies Frequency Derived Frequency Component # / Location Description of Use 26MHz 900MHz ISM Band Monitor / Y2 Reference for ISM Transceiver 4MHz 4MHz Monitor / Y1 uP Clk 3.6854MHz 133MHz Monitor / Y3 uP Clk 32.768KHz 32.768KHz Monitor / Y4 uP Timer 26MHz 900MHz ISM Band Sensor / Y2 Reference for ISM Transceiver 4MHz 4MHz Sensor / Y1 uP Clk Power Supply Manufacturer Model # Serial # Type Friwo 7555M/15 N/A Switched-mode: (Frequency) 60kHz to 120kHz Linear Other: at short circuit frequency can go down to 8kHz Critical EMI Components (Capacitors, ferrites, etc.) Description Manufacturer Part # or Value Qty Component # / Location Ferrite Bead Spectrum Control, Inc. FCV-0805- A601P 3 on Base Unit Ref designator L2 - L4 EMC Critical Detail Transient suppressors, filters, circuit layout with vias reduce RF noise. Voltage transients have been minimized by implementing good power-supply busing. To reduce voltage transients, the supply line's parasitic inductances as low as possible by reducing trace lengths, using wide traces, ground planes. Saw filters are used in our RF section to achieve low insertion loss and high stop band attenuation FILE: EMCU_F09.02E, REVISION 0, Effective: October 26, 1999 Page 2 of 6 TÜV PRODUCT SERVICE 10040 Mesa Rim Road San Diego, CA 92121-2912 Phone 858 546 3999 FAX 858 546 0364 Report No. 201108-08 Part 15 Page 5 Rev.No 1.0 1 GENERAL INFORMATION (continued) 1.2 Related Submittal/Grant None 1.3 Tested System Details The FCC IDs for all equipment, plus descriptions of all cables used in the tested system are: None 1.4 Test Methodology Purpose of Test: To demonstrate compliance with the ANSI C63.4 setup. TEST FCC CFR 47 # PASS/FAIL Radiated 15.249 Pass Test Performed: X 1. Conducted Emissions, FCC Part 15, Paragraph 15.107(a) X 2. Radiated Emissions, FCC Part 15, Paragraph 15.109(a); 15.249 3. Radiated Emission per FCC Part 2, Paragraph 2.1053, & Part 22, Paragraph 22.917 4. Engineering evaluations 5. Frequency Stability, Part 2, Paragraph 2.995, and Part 87, Paragraph 87.133 RF Output Power, Part 2, Paragraph 2.985, Part 22, Paragraph 22.917 Both Conducted and radiated testing were performed according to the procedures in FCC/ANSI C63.4 and CSA 108.8 - M1983. Radiated testing was performed at an antenna-to-EUT distance of 3 meters (1 - 25 GHz). 1.5 Test Facility The open area test site and conducted measurement data were tested by: TÜV PRODUCT SERVICE 10040 Mesa Rim Road San Diego, CA 92121-2912 Phone: 858 546 3999 Fax: 858 546 0364 The Test Site Data and performance comply with ANSI 63.4 and are registered with the FCC, 7435 Oakland Mills Rd, Columbia Maryland 21046. All Measurement Data is acquired according to the content of FCC Measurement Procedure and ANSI C63.4, unless supplemented with additional requirements as noted in the test report. TÜV PRODUCT SERVICE 10040 Mesa Rim Road San Diego, CA 92121-2912 Phone 858 546 3999 FAX 858 546 0364 Report No. 201108-08 Part 15 Page 6 Rev.No 1.0 2. SYSTEM TEST CONFIGURATION 2.1 Justification The EUT was initially tested for FCC emission in the following configuration: See Block Diagram. 2.2 EUT Exercise Software None 2.3 Special Acce…

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