PEQ931040804433MHz RF Transmitter

Block Diagram of 9310 ( Tx ) Power System Frequency System Frequency 433.95 (ii) 32.768kHz (i) Raw Data RF Part Base Band (i) The 32.768kHz is the MCU clock frequency for normal operation. (ii) The 433.95MHz is the output of the RF circuit Antenna Matching network MCU IC: TM8723 SAW stabilized Colpitts Oscillator Reed switch Key Matrix Moving Magnet

Test Setup FCC ID : PEQ931040804 External Photo - front External Photo - rear

Test Setup FCC ID : PEQ931040804 Internal Photo - 1 Internal Photo - 2 Test Setup FCC ID : PEQ931040804 Internal Photo – 3 Internal Photo – 4 Test Setup FCC ID : PEQ931040804 Internal Photo – 5 Internal Photo – 6 Test Setup FCC ID : PEQ931040804 Internal Photo – 7 Internal Photo - 8

Technical Description of the Circuit: The circuit is a RF rain gauge transmitter, the MCU TM8723 will measure the rain fall by the reel switch accompanied with the moving magnet on the tipping bucket and code the data. Afterward, the data is transferred to the RF circuit which is a SAW stabilized Colpitts Oscillator ( Constructed by Q1, L1, L2, C1, C2, C3, C4, C5, R1, R3 and X1 ) every 3 minutes, when the Data pin output HIGH level to the oscillator, the oscillator is turned on and output 433.95MHz RF signal, when the Data pin output LOW level to the oscillator, the oscillator is turned off and this ON & OFF process modulate the code data into 433.95MHz with ON OFF KEYING.. Also there is an antenna matching network ( Constructed by C7, C8, L3 and L4 ) after the SAW stabilized Colpitts Oscillator, this network suppress harmonic and spurious and match the Oscillator to the antenna.

• The test results reported in this test report shall refer only to the sample actually tested and shall not refer or be deemed to refer to bulk from which such a sample may be said to have been obtained. • This report shall not be reproduced except in full without prior authorization from Intertek Testing Services Hong Kong Limited. • For Terms And Conditions of the services, it can be provided upon request. • The evaluation data of the report will be kept for 3 years from the date of issuance. Intertek Testing Services Hong Kong Ltd. 2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong. Tel: (852) 2173 8888 Fax: (852) 2371 0521 Website: www.hk.intertek-etlsemko.com Electronics Tomorrow Ltd. Application For Certification (FCC ID: PEQ931040804) Transmitter 0415909(S1) DL/ Sandy Lee September 10, 2004 INTERTEK TESTING SERVICES FCC ID: PEQ931040804 i LIST OF EXHIBITS INTRODUCTION EXHIBIT 1: General Description EXHIBIT 2: System Test Configuration EXHIBIT 3: Emission Results EXHIBIT 4: Equipment Photographs EXHIBIT 5: Product Labelling EXHIBIT 6: Technical Specifications EXHIBIT 7: Instruction Manual EXHIBIT 8: Miscellaneous Information INTERTEK TESTING SERVICES FCC ID: PEQ931040804 ii MEASUREMENT/TECHNICAL REPORT Electronics Tomorrow Ltd. - MODEL: 9310 FCC ID: PEQ931040804 September 10, 2004 This report concerns (check one:) Original Grant X Class II Change Equipment Type: Low Power Transmitter (example: computer, printer, modem, etc.) Deferred grant requested per 47 CFR 0.457(d)(1)(ii)? Yes No X If yes, defer until: date Company Name agrees to notify the Commission by: date 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 If no, assumed Part 15, Subpart C for intentional radiator - the new 47 CFR [12-08-03 Edition] provision. Report prepared by: Derek Leung Intertek Testing Services 2/F., Garment Center, 576, Castle Peak Road, HONG KONG. Phone: 852-2173-8539 Fax: 852-2371-0521 INTERTEK TESTING SERVICES FCC ID: PEQ931040804 iii Table of Contents 1.0 General Description..............................................................................................2 1.1 Product Description ..............................................................................................2 1.2 Related Submittal(s) Grants .................................................................................2 1.3 Test Methodology.................................................................................................3 1.4 Test Facility ..........................................................................................................3 2.0 System Test Configuration ...................................................................................5 2.1 Justification ..........................................................................................................5 2.2 EUT Exercising Software .....................................................................................5 2.3 Special Accessories .............................................................................................5 2.4 Equipment Modification ........................................................................................6 2.5 Measurement Uncertainty ....................................................................................6 2.6 Support Equipment List and Description ..............................................................6 3.0 Emission Results ..................................................................................................8 3.1 Field Strength Calculation ....................................................................................9 3.2 Radiated Emission Configuration Photograph ....................................................11 3.3 Radiated Emission Data.....................................................................................12 4.0 Equipment Photographs .....................................................................................15 5.0 Product Labelling ................................................................................................17 6.0 Technical Specifications ....................................................................................19 7.0 Instruction Manual ..............................................................................................21 8.0 Miscellaneous Information .................................................................................23 8.1 Measured Bandwidth .........................................................................................24 8.2 Discussion of Pulse Desensitization ...................................................................25 8.3 Calculation of Average Factor ............................................................................26 8.4 Emissions Test Procedures................................................................................27 INTERTEK TESTING SERVICES FCC ID: PEQ931040804 iv List of attached file Exhibit type File Description filename Test Report Test Report report.pdf Operation Description Technical Description descri.pdf Test Setup Photo Radiated Emission radiated photos.doc Test Report Bandwidth Plot bw.pdf External Photo External Photo external photos.doc Internal Photo Internal Photo internal photos.doc Block Diagram Block Diagram block.pdf Schematics Circuit Diagram circuit.pdf ID Label/Location Label Artwork and Location label.pdf User Manual User Manual manual.pdf Test Report Timing Diagram timing.pdf INTERTEK TESTING SERVICES FCC ID: PEQ931040804 1 EXHIBIT 1 GENERAL DESCRIPTION INTERTEK TESTING SERVICES FCC ID: PEQ931040804 2 1.0 General Description 1.1 Product Description The Equipment Under Test (EUT) is a Transmitter operating at 433.95MHz. The EUT is powered by 3V d.c. (2 x 1.5V “AA” battery). During normal use, it transmits rainfall signal to the corresponding receiver. The receiver will display the rainfall d…

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Test Setup FCC ID : PEQ931040804 Radiated - front Radiated - rear