Page 1 of 2 Block diagram of BWR101 and BWR102 system. Figure 1. BWR101 and BWR102 load measurement Four load cells Load apply R CPU Amplifier Delay Circuit Comparator RF TX module U1 X1,Q2, C1,C2 433.92MHz 32.768 kHz 4 MHz

External Photos

Test SetupFCCID : NMTBWR102-01-01 External Photo -front External Photo - rear

Operational Description

Block C, 9/F, Kaiser Estate, Phase 1, 41 Man Yue Street, Hunghom, Kowloon, Hong Kong. Tel (852) 2764 7873 Fax (852) 2765 6620 Email: [email protected] Web Site: http://www.idthk.com BWR102 TECHNICAL DESCRIPTION A: CIRCUIT OPERATION: 1:WEIGHT SENSOR, ANALOG-TO-FREQUENCY CONVERTER,CPU PROCESSING 2:WIDEBAND TRANSMITTER 3:SAW STABILIZED FREQUENCY CONTROL 4:STEP-TO-TRANSMIT OPERATION 5: ON-OFF KEYING MODULATION B: COMPONENT DESCRIPTION: CATEGORYNUMBERNAMEDESCRIPTION WEIGHT BRIDGELC569012LOAD CELLWEIGHT SENSOR (X 4) INTEGRATED CIRCUIT LMV324 A-BOPERATIONAL AMPLIFIER LOAD CELL SIGNAL AMPLIFIER INTEGRATED CIRCUIT CD4066ANALOG SWITCHES SWITCH DIFFERENT LOAD CELL SIGNAL TO THE A-F CONVERTER INTEGRATED CIRCUIT LMV324 C-DOPERATIONAL AMPLIFER DUAL SLOPES ANALOG-TO FREQUENCY CONVERTER INTEGRATED CIRCUIT HT49C50CPUMICROCONTROLLER INTEGRATED CIRCUIT LP2985VOLTAGE REGULATOR REGULATOR FOR LCD INTEGRATED CIRCUIT XC6230VOLTAGE REGULATOR REGULATOR FOR RF TRANSMITTER INTEGRATED CIRCUIT HT96LC46EEPROMEEPROM FOR USER ID STORAGE SAW RESONATOR KAR433SAW RESONATOR SAW RESONATOR FOR FREQUENCY STABILIZATION TRANSISTORMMBR911LT1RF TRANSISTOR TRANSISTOR FOR TRANSMITTER

Schematics

Bwr101v2.sch-1 - Thu Feb 21 17:55:14 2002 Bwr101v2.sch-2 - Thu Feb 21 17:57:22 2002 Rf-tx.sch-1 - Thu Feb 21 17:53:48 2002

Test Report

• 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. Intertek Testing Services Hong Kong Ltd. 2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong. Tel: (852) 2173 8888 Fax: (852) 2785 5487 IDT Technology Limited Application For Certification (FCC ID: NMTBWR102-01-01) Transmitter WO# 0201834 WL/Sandy February 21, 2002 INTERTEK TESTING SERVICES FCC ID: NMTBWR102-01-01 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: NMTBWR102-01-01 ii MEASUREMENT/TECHNICAL REPORT IDT Technology Limited - MODEL: IDT Technology Limited BWR102 IDT Technology Limited BWR101 FCC ID: NMTBWR102-01-01 February 21, 2002 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 [10-1-01 Edition] provision. Report prepared by: Wilson Loke Intertek Testing Services 2/F., Garment Center, 576, Castle Peak Road, HONG KONG Phone: 852-2173-8575 Fax: 852-2745-8306 INTERTEK TESTING SERVICES FCC ID: NMTBWR102-01-01 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 Discussion of Pulse Desensitization...............................................................................24 8.2 Calculation of Average Factor.......................................................................................25 8.3 Emissions Test Procedures............................................................................................26 INTERTEK TESTING SERVICES FCC ID: NMTBWR102-01-01 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 Rconfig photos.doc 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 INTERTEK TESTING SERVICES FCC ID: NMTBWR102-01-01 1 EXHIBIT 1 GENERAL DESCRIPTION INTERTEK TESTING SERVICES FCC ID: NMTBWR102-01-01 2 1.0 General Description 1.1 Product Description The Equipment Under Test (EUT) is a Weight Scale transmitter with an integral antenna operating at 433MHz. The EUT is powered by 6.0V d.c. (4 x LR6/AA/UM-3 1.5V batteries). Upon installation of batteries, the EU…

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Test Setup Photos

Test SetupFCCID : NMTBWR102-01-01 Radiated -front Radiated - rear