IR2DWW6328Integrated Sensor Suite 2 with SPARS

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Response to E04-000083-1 1. The FRN number is 0006-8617-77. 2. A JPG block diagram file has been uploaded. 3. 78kHz clock is used in the digital circuitry only and is not associated with the transmitter, therefore testing below 14MHz is not required. 4. The test report has been revised to correct the data sheet and table. 5. A revised expository statement has been uploaded. 6. The output power on the 731 form should be 3.3 mW.

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Interior Overall PCB Front Close PCB Front Wide PCB Back Wide

Expository Statement Equipment Name: ISS-2 Plus SPARS Model Number: 6328 Description : The 6328 is weather station. It transmits information every 2.5 seconds to a receiving console using Frequency Hopping Spread Spectrum technology with Frequency Shift Keying the carrier at 19200 baud rate. It hops it though 51 channels using a pseudo- random hop table though the 902-928Mhz band. The station consist of an Anemometer, temperature, humidity solar and UV Circuitry: The 6328 contains 1 circuit boards called the SIM (sensor interface module). The SIM contains the RF transmitter, 5 RJ connectors for the anemometer ,solar ,UV, temperature and humidity The uP on the board runs at 76 kHz. The SIM board has an average current draw of 100 uA and a peak current draw of no more than 20 ma. The board is solar powered during the day and powered by a 3V lithium cell at night. The transmitter is a simple integrated circuit surrounded by passive components and outputs no more than 10 mW. Antenna: The antenna is 4” helical copper wire inside a 4” long plastic housing. It makes approximately a ¼ wave dipole with the ground plane of the SIM board.

Page 1 of 32 Report No: FC04-069A ADDENDUM TO DAVIS INSTRUMENTS TEST REPORT FC04-069 FOR THE INTEGRATED SENSOR SUITE, 6328 FCC PART 15 SUBPART C SECTIONS 15.209 & 15.247 COMPLIANCE DATE OF ISSUE: AUGUST 27, 2004 PREPARED FOR: Davis Instruments 3465 Diablo Avenue Hayward, CA 94545 PREPARED BY: Mary Ellen Clayton CKC Laboratories, Inc. 5473A Clouds Rest Mariposa, CA 95338 P.O. No.: W.O. No.: 57173 82620 Date of test:August 24-25, 2004 Report No.: FC04-069A This report contains a total of 32 pages and may be reproduced in full only. Partial reproduction may only be done with the written consent of CKC Laboratories, Inc. The results in this report apply only to the items tested, as identified herein. Page 2 of 32 Report No: FC04-069A TABLE OF CONTENTS Administrative Information..............................................................................................3 Summary of Results.........................................................................................................4 Conditions for Compliance..............................................................................................4 Approvals.........................................................................................................................4 Equipment Under Test (EUT) Description......................................................................5 FCC 15.31(m) Number Of Channels...............................................................................5 FCC 15.33(a) Frequency Ranges Tested..........................................................................5 FCC 15.35 Analyzer Bandwidth Settings........................................................................5 FCC 15.203 Antenna Requirements.................................................................................5 FCC 15.205 Restricted Bands..........................................................................................5 Eut Operating Frequency.................................................................................................5 Equipment Under Test.....................................................................................................6 Peripheral Devices............................................................................................................6 Report of Measurements..................................................................................................7 Table 1: FCC 15.209 Six Highest Radiated Emission Levels: 14-1000 MHz.....7 Table 2: FCC 15.209 Six Highest Radiated Emission Levels: 1-10 GHz............8 FCC 15.247(a)(1)(i) Average Time of Occupancy..............................................9 Table 3: FCC 15.247(b)(3) Fundamental Emission Levels.................................9 20 dB Bandwidth..................................................................................................10 Emissions Mask....................................................................................................13 Frequency Separation...........................................................................................14 Dwell Time...........................................................................................................15 Hopping Channels................................................................................................18 Temperature And Humidity During Testing....................................................................19 EUT Setup........................................................................................................................19 Correction Factors............................................................................................................19 Table A: Sample Calculations..............................................................................19 Test Instrumentation and Analyzer Settings....................................................................20 Spectrum Analyzer Detector Functions...............................................................20 Peak..........................................................................................................20 Quasi-Peak...............................................................................................20 Average....................................................................................................20 EUT Testing.....................................................................................................................21 Radiated Emissions..............................................................................................21 Appendix A: Test Setup Photographs..............................................................................22 Photograph Showing Radiated Emissions............................................................23 Photograph Showing Radiated Emissions............................................................24 Appendix B: Test Equipment List....................................................................................25 Appendix C: Measurement Data Sheets...........................................................................26 Page 3 of 32 Report No: FC04-069A ADMINISTRATIVE INFORMATION DATE OF TEST:August 24-25, 2004 DATE OF RECEIPT:August 24, 2004 PURPOSE OF TEST:To demonstrate the compliance of the Integrated Sensor Suite, 6328, with the requirements for FCC Part 15 Subpart C Sections 15.209 & 15.247 devices. Addendum A is to revise the 15.209 14- 1000 MHz data sheet TEST METHOD:ANSI C63.4 (2001) MANUFACTURER:Davis Instruments 3465 Diablo Avenue Hayward, CA 94545 REPRESENTATIVE:Perry Dillon TEST LOCATION:CKC Laboratories, Inc. 5473A Clouds Rest Mariposa, CA 95338 Page 4 of 32 Report No: FC04-069A SUMMARY OF RESULTS As received, the Davis Instruments Integrated Sensor Suite, 6328 was found to be fully compliant with the following standards and specifications: Canadian Standard Canadian Section FCC StandardFCC SectionTest Description RSS 2105…

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PHOTOGRAPH SHOWING RADIATED EMISSIONS Radiated Emissions - Front View PHOTOGRAPH SHOWING RADIATED EMISSIONS Radiated Emissions - Back View