Test Report

FCC ID: IAJPP243-49MR

Test Report

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FCCID_418099

Kiddesigns Incorporation Application For Certification (FCC ID: IAJPP243-49MR) Superregenerative Receiver Sample Description : Polly Pocket “ Radio Controlled Limo” Model : PP-243 0405700 WN/at April 20, 2004 • The test results reported in this 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 • The evaluation data of the report will be kept for 3 years from the date of issuance. FCC ID : IAJPP243-49MR

INTERTEK TESTING SERVICES 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 FCC ID: IAJPP243-49MR i

INTERTEK TESTING SERVICES MEASUREMENT/TECHNICAL REPORT Kiddesigns Incorporation - MODEL: PP-243 FCC ID: IAJPP243-49MR April 20, 2004 This report concerns (check one:) Original Grant X Class II Change Equipment Type: Superregenerative Receiver (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 B for intentional radiator Report prepared by: Wilbur Ng Intertek Testing Services 2/F., Garment Center, 576, Castle Peak Road, HONG KONG Phone: 852-2173-8502 Fax: 852-2742-9149 FCC ID: IAJPP243-49MR ii

INTERTEK TESTING SERVICES 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 Support Equipment List and Description................................................................ 5 2.4 Equipment Modification......................................................................................... 6 2.5 Special Accessories.............................................................................................. 6 3.0 Emission Results ..................................................................................................... 8 3.1 Field Strength Calculation ..................................................................................... 9 3.2 Radiated Emission Configuration Photograph ..................................................... 10 3.3 Radiated Emission Data...................................................................................... 11 4.0 Equipment Photographs........................................................................................ 14 5.0 Product Labelling................................................................................................... 16 6.0 Technical Specifications........................................................................................ 18 7.0 Instruction Manual ................................................................................................. 20 8.0 Miscellaneous Information .................................................................................... 22 8.1 Stabilization Waveform........................................................................................ 23 8.2 Emissions Test Procedures................................................................................. 24 8.2 Emissions Test Procedures (cont'd) .................................................................... 25 FCC ID: IAJPP243-49MR iii

INTERTEK TESTING SERVICES 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.pdf Test Report Stabilization Waveform superreg.pdf External Photo External Photo external photos.pdf Internal Photo Internal Photo internal photos.pdf 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 FCC ID: IAJPP243-49MR iv

INTERTEK TESTING SERVICES EXHIBIT 1 GENERAL DESCRIPTION FCC ID: IAJPP243-49MR 1

INTERTEK TESTING SERVICES 1.0 General Description 1.1 Product Description The equipment under test (EUT) is a receiver for a RC Car operating at 49.860 MHz. The EUT is powered by a 1.2V 70mAh Ni-Cd rechargeable battery. The EUT can be controlled to run forward, backward, turning left and right directions by the corresponding controller. The brief circuit description is saved with filename: descri.pdf 1.2 Related Submittal(s) Grants This is a single application for certification of a receiver. The transmitter for this receiver is authorized by Certification procedure with FCC ID: IAJPP243-49MT. FCC ID: IAJPP243-49MR 2

INTERTEK TESTING SERVICES 1.3 Test Methodology The radiated emission measurements were performed according to the procedures in ANSI C63.4 (2001). All measurements were performed in Open Area Test Sites. Preliminary scans were performed in the Open Area Test Sites only to determine worst case modes. All Radiated tests were performed at an antenna to EUT distance of 3 meters, unless stated otherwise in the "Justification Section" of this Application. 1.4 Test Facility The open area test site and conducted measurement facility used to collect the emission data is located at Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong. This test facility and site measurement data have been fully placed on file with the FCC. FCC ID: IAJPP243-49MR 3

INTERTEK TESTING SERVICES EXHIBIT 2 SYSTEM TEST CONFIGURATION FCC ID: IAJPP243-49MR 4

INTERTEK TESTING SERVICES 2.0 System Test Configuration 2.1 Justification The system was configured for testing in a typical fashion (as a customer would normally use it), and in the confines as outlined in ANSI C63.4 (2001). The EUT was powered by a fully charged 1.2V 70mAh Ni-Cd rechargeable battery during test. For maximizing emissions, the EUT was rotated through 360°, the antenna height was varied from 1 meter to 4 meters above the ground plane, and the antenna polarization was changed. This step by step procedure for maximizing emissions led to the data reported in Exhibit 3.0. The unit was operated standalone and placed in the center of the turntable. The equipment under test (EUT) was configured for testing in a typical fashion (as a customer would normally use it). The EUT was placed on the turntable, which enabled the engineer to maximize emissions through its placement in the three orthogonal axes. 2.2 EUT Exercising Software There was no special software to exercise the device. 2.3 Special Accessories There are no special accessories necessary for compliance of this product. FCC ID: IAJPP243-49MR 5

INTERTEK TESTING SERVICES 2.4 Equipment Modification Any modifications installed previous to testing by Kiddesigns Incorporation will be incorporated in each production model sold/leased in the United States. No modifications were installed by Intertek Testing Services. 2.5 Support Equipment List and Description This product was tested in a standalone configuration. All the items listed under section 2.0 of this report are Confirmed by: Wilbur Ng Manager Intertek Testing Services Agent for Kiddesigns Incorporation Signature April 20, 2004 Date FCC ID: IAJPP243-49MR 6

INTERTEK TESTING SERVICES EXHIBIT 3 EMISSION RESULTS FCC ID: IAJPP243-49MR 7

INTERTEK TESTING SERVICES 3.0 Emission Results Data is included worst case configuration (the configuration which resulted in the highest emission levels). A sample calculation, configuration photographs and data tables of the emissions are included. FCC ID: IAJPP243-49MR 8

INTERTEK TESTING SERVICES 3.1 Field Strength Calculation The field strength is calculated by adding the Antenna Factor and Cable Factor, and subtracting the Amplifier Gain (if any) from the measured reading. The basic equation with a sample calculation is as follows: FS = RA + AF + CF - AG where FS = Field Strength in dBµV/m RA = Receiver Amplitude (including preamplifier) in dBµV CF = Cable Attenuation Factor in dB AF = Antenna Factor in dB AG = Amplifier Gain in dB In the following table(s), the reading shown on the data table reflects the preamplifier gain. An example for the calculations in the following table is as follows: FS = RR + LF where FS = Field Strength in dBµV/m RR = RA - AG in dBµV LF = CF + AF in dB Assume a receiver reading of 52.0 dBµV is obtained. The antenna factor of 7.4 dB and cable factor of 1.6 dB are added. The amplifier gain of 29 dB is subtracted, giving a field strength of 32 dBµV/m. This value in dBµV/m was converted to its corresponding level in µV/m. RA = 52.0 dBµV/m AF = 7.4 dB RR = 23.0 dBµV CF = 1.6 dB LF = 9.0 dB AG = 29.0 dB FS = RR + LF FS = 23 + 9 = 32 dBµV/m Level in µV/m = Common Antilogarithm [(32 dBµV/m)/20] = 39.8 µV/m FCC ID: IAJPP243-49MR 9

INTERTEK TESTING SERVICES 3.2 Radiated Emission Configuration Photograph Worst Case Radiated Emission 47.984 MHz For electronic filing, the worst case radiated emission configuration photograph is saved with filename: radiated photos.pdf FCC ID: IAJPP243-49MR 10

INTERTEK TESTING SERVICES 3.3 Radiated Emission Data The data on the following page lists the significant emission frequencies, the limit and the margin of compliance. Numbers with a minus sign are below the limit. Judgement: Passed by 7.6 dB TEST PERSONNEL: Signature Anthony K. M. Chan, Compliance Engineer Typed/Printed Name April 20, 2004 Date FCC ID: IAJPP243-49MR 11

INTERTEK TESTING SERVICES Applicant: Kiddesigns Incorporation Date of Test: April 13, 2004 Model: PP-243 Table 1 Radiated Emissions Frequency Net at 3m Limit at 3m Margin Polarization (MHz) (dBµV/m) (dBµV/m) (dB) V 46.094 30.4 40.0 -9.6 V 47.984 32.4 40.0 -7.6 V 48.786 30.2 40.0 -9.8 V 49.485 30.0 40.0 -10.0 V 50.641 29.6 40.0 -10.4 V 51.248 28.5 40.0 -11.5 V 98.728 28.4 43.5 -15.1 V 97.642 28.5 43.5 -15.0 V 99.726 27.2 43.5 -16.3 V 147.196 27.4 43.5 -16.1 V 148.256 27.2 43.5 -16.3 V 149.481 26.4 43.5 -17.1 Notes: 1. Negative sign in the column shows value below limit. 2. Peak Detector Data unless otherwise stated. 3. All measurements were made at 3 meter. Harmonic emissions not detected at the 3- meter distance were measured at 0.3-meter and an inverse proportional extrapolation was performed to compare the signal level to the 3-meter limit. No other harmonic emissions than those reported were detected at a test distance of 0.3-meter. Test Engineer: Anthony K. M. Chan FCC ID: IAJPP243-49MR 12

INTERTEK TESTING SERVICES EXHIBIT 4 EQUIPMENT PHOTOGRAPHS FCC ID: IAJPP243-49MR 13

INTERTEK TESTING SERVICES 4.0 Equipment Photographs For electronic filing, the photographs are saved with filename: external photos.pdf and internal photos.pdf FCC ID: IAJPP243-49MR 14

INTERTEK TESTING SERVICES EXHIBIT 5 PRODUCT LABELLING FCC ID: IAJPP243-49MR 15

INTERTEK TESTING SERVICES 5.0 Product Labelling For electronic filing, the FCC ID label artwork and the label location are saved with filename: label.pdf FCC ID: IAJPP243-49MR 16

INTERTEK TESTING SERVICES EXHIBIT 6 TECHNICAL SPECIFICATIONS FCC ID: IAJPP243-49MR 17

INTERTEK TESTING SERVICES 6.0 Technical Specifications For electronic filing, the block diagram and schematics are saved with filename: block.pdf and circuit.pdf respectively. FCC ID: IAJPP243-49MR 18

INTERTEK TESTING SERVICES EXHIBIT 7 INSTRUCTION MANUAL FCC ID: IAJPP243-49MR 19

INTERTEK TESTING SERVICES 7.0 Instruction Manual For electronic filing, a preliminary copy of the Instruction Manual is saved with filename: manual.pdf This manual will be provided to the end-user with each unit sold/leased in the United States. FCC ID: IAJPP243-49MR 20

INTERTEK TESTING SERVICES EXHIBIT 8 MISCELLANEOUS INFORMATION FCC ID: IAJPP243-49MR 21

INTERTEK TESTING SERVICES 8.0 Miscellaneous Information This miscellaneous information includes details of the stabilizing process (including a plot of the stabilized waveform) and the test procedure. FCC ID: IAJPP243-49MR 22

INTERTEK TESTING SERVICES 8.1 Stabilization Waveform Previous to the testing, the superregenerative receiver was stabilized as outlined in the test procedure. The plot saved on the filename : superreg.pdf shows the fundamental emission when a signal generator was used to stabilize the receiver. Please note that the antenna was placed as close as possible to the EUT for clear demonstration of the waveform and that accurate readings are not possible from this plot. FCC ID: IAJPP243-49MR 23

INTERTEK TESTING SERVICES 8.2 Emissions Test Procedures The following is a description of the test procedure used by Intertek Testing Services Hong Kong Ltd. in the measurements of superregenerative receivers operating under the Part 15, Subpart B rules. The test set-up and procedures described below are designed to meet the requirements of ANSI C63.4 - 2001. Superregenerative receivers are stabilized prior to measurement by generating a signal well above the receiver threshold whose frequency is tuned until the emissions stabilize into a line spectrum. The signal is usually generated as CW with a Marconi 2022D signal generator and a short whip antenna and is at a level of several hundred to several thousand mV/m. Plots of the stabilized signal will be shown. If a modulated signal is used, it will be noted. The equipment under test (EUT) is attached to a cardboard box and placed on a wooden turntable which is four feet in diameter and approximately one meter in height above the groundplane. During the radiated emissions test, the turntable is rotated and any cables leaving the EUT are manipulated to find the configuration resulting in maximum emissions. The cardboard box is adjusted through all three orthogonal axis to obtain maximum emission levels. The antenna height and polarization are also varied during the testing to search for maximum signal levels. The height of the antenna is varied from one to four meters. Detector function for radiated emissions is in peak mode. Average readings, when required, are taken by measuring the duty cycle of the equipment under test and subtracting the corresponding amount in dB from the measured peak readings. A detailed description for the calculation of the average factor can be found in Exhibit 8.3. The frequency range scanned is from the lowest radio frequency signal generated in the device which is greater than 9 kHz to the tenth harmonic of the highest fundamental frequency or 40 GHz, whichever is lower. For line conducted emissions, the range scanned is 150 kHz to 30 MHz. FCC ID: IAJPP243-49MR 24

INTERTEK TESTING SERVICES 8.2 Emissions Test Procedures (cont) The EUT is warmed up for 15 minutes prior to the test. AC power to the unit is varied from 85% to 115% nominal and variation in the fundamental emission field strength is recorded. If battery powered, a new, fully charged battery is used. Conducted measurements were made as described in ANSI C63.4 - 2001. The IF bandwidth used for measurement of radiated signal strength was 10 kHz for emission below 30 MHz and 120 kHz for emission from 30 MHz to 1000 MHz. Where pulsed transmissions of short enough pulse duration warrant, a greater bandwidth is selected according to the recommendations of Hewlett Packard Application Note 150-2. A discussion of whether pulse desensitivity is applicable to this unit is included in this report (See Exhibit 8.2). Above 1000 MHz, a resolution bandwidth of 1 MHz is used. Measurements are normally conducted at a measurement distance of three meters. All measurements are extrapolated to three meters using inverse scaling, unless otherwise reported. Measurements taken at a closer distance are so marked. When determining the test result, the Measurement Uncertainty of the test has been considered. FCC ID: IAJPP243-49MR 25


Document Created: 2004-04-20 16:48:53
Document Modified: 2004-04-20 16:48:53
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