Test Report

FCC ID: PQN44234TX27

Test Report

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FCCID_871161

Spin Master Toys Far East Ltd Application For Certification (FCC ID: PQN44234TX27) Transmitter Sample Description : Air Hogs RC Gyro Havoc (27MHz) Model : 44234 We hereby certify that the sample of the above item is considered to comply with the requirements of FCC Part 15, Subpart C for Intentional Radiator, mention 47 CFR [4-5-2007] 0724829 BH/at November 19, 2007 • 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 : PQN44234TX27

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: PQN44234TX27 i

INTERTEK TESTING SERVICES MEASUREMENT/TECHNICAL REPORT Spin Master Toys Far East Ltd. - MODEL: 44234 FCC ID: PQN44234TX27 November 19, 2007 This report concerns (check one:) Original Grant X Class II Change Equipment Type: Low Power Transmitter 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 [4-5- 2007 Edition] provision. Report prepared by: Ho Wai Kin, Ben Intertek Testing Services 2/F., Garment Center, 576, Castle Peak Road, HONG KONG Phone: 852-2173-8517 Fax: 852-2742-9149 FCC ID: PQN44234TX27 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 Special Accessories............................................................................................. 5 2.4 Equipment Modification ....................................................................................... 6 2.5 Measurement Uncertainty.................................................................................... 6 2.6 Support Equipment List and Descripition ............................................................. 6 3.0 Emission Results .................................................................................................... 8 3.1 Field Strength Calculation.................................................................................... 9 3.1 Field Strength Calculation (cont’d) ..................................................................... 10 3.2 Radiated Emission Configuration Photograph .................................................... 11 3.3 Radiated Emission Data .................................................................................... 12 4.0 Equipment Photographs....................................................................................... 16 5.0 Product Labelling .................................................................................................. 18 6.0 Technical Specifications....................................................................................... 20 7.0 Instruction Manual ................................................................................................ 22 8.0 Miscellaneous Information ................................................................................... 24 8.1 Measured Bandwidth......................................................................................... 25 8.2 Discussion of Pulse Desensitization................................................................... 26 8.3 Calculation of Average Factor............................................................................ 27 8.4 Emission Test Procedures ................................................................................ 28 FCC ID: PQN44234TX27 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.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 Average Factor af.pdf FCC ID: PQN44234TX27 iv

INTERTEK TESTING SERVICES EXHIBIT 1 GENERAL DESCRIPTION FCC ID: PQN44234TX27 1

INTERTEK TESTING SERVICES 1.0 General Description 1.1 Product Description The equipment under test (EUT) is a transmitter for a RC toy helicopter operating at 27.145 MHz which is controlled by a crystal. The EUT is powered by 6 AA batteries. The EUT has an on/off/charge switch, two control toggles, a steering trimmer and a charge cable. The two control toggles are used to control the RC toy helicopter to fly in different directions. The steering trimmer is used to adjust the helicopter to go straight. The EUT can also be used to charge the helicopter when its connects to the helicopter. The brief circuit description is saved with filename : descri.pdf 1.2 Related Submittal(s) Grants The receiver for this transmitter is exempted from the Part 15 technical rules per 15.101(b). FCC ID: PQN44234TX27 2

INTERTEK TESTING SERVICES 1.3 Test Methodology The radiated emission measurements were performed according to the procedures in ANSI C63.4 (2003). 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: PQN44234TX27 3

INTERTEK TESTING SERVICES EXHIBIT 2 SYSTEM TEST CONFIGURATION FCC ID: PQN44234TX27 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 (2003). The EUT was powered by 6 new AA batteries during test. For maximizing emissions below 30 MHz, the EUT was rotated through 360°, the centre of the loop antenna was placed 1 meter above the ground, and the antenna polarization was changed. For maximizing emission at and above 30 MHz, 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 report 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 a turn table, and the Antenna of EUT was fully extended, which enabled the engineer to maximize emissions through its placement in the three orthogonal axes. For simplicity of testing, the unit was wired to transmit continuously. 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: PQN44234TX27 5

INTERTEK TESTING SERVICES 2.4 Equipment Modification Any modifications installed previous to testing by Spin Master Toys Far East Ltd. will be incorporated in each production model sold/leased in the United States. No modifications were installed by Intertek Testing Services. 2.5 Measurement Uncertainty When determining the test conclusion, the measurement uncertainty of test has been considered. 2.6 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: Ho Wai Kin, Ben Supervisor Intertek Testing Services Agent for Spin Master Toys Far East Ltd Signature November 19, 2007 Date FCC ID: PQN44234TX27 6

INTERTEK TESTING SERVICES EXHIBIT 3 EMISSION RESULTS FCC ID: PQN44234TX27 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: PQN44234TX27 8

INTERTEK TESTING SERVICES 3.1 Field Strength Calculation The field strength is calculated by adding the reading on the Spectrum Analyzer to the factors associated with preamplifiers (if any), antennas, cables, pulse desensitization and average factors (when specified limit is in average and measurements are made with peak detectors). A sample calculation is included below. FS = RA + AF + CF - AG + PD + AV 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 PD = Pulse Desensitization in dB AV = Average Factor in -dB In the radiated emission table which follows, the reading shown on the data table may reflect the preamplifier gain. An example of the calculations, where the reading does not reflect the preamplifier gain, follows: FS = RA + AF + CF - AG + PD + AV FCC ID: PQN44234TX27 9

INTERTEK TESTING SERVICES 3.1 Field Strength Calculation (cont’d) Example Assume a receiver reading of 62.0 dBμV is obtained. The antenna factor of 7.4 dB and cable factor of 1.6 dB is added. The amplifier gain of 29 dB is subtracted. The pulse desensitization factor of the spectrum analyzer was 0 dB, and the resultant average factor was -10 dB. The net field strength for comparison to the appropriate emission limit is 32 dBμV/m. This value in dBμV/m was converted to its corresponding level in μV/m. RA = 62.0 dBμV AF = 7.4 dB CF = 1.6 dB AG = 29.0 dB PD = 0 dB AV = -10 dB FS = 62 + 7.4 + 1.6 - 29 + 0 + (-10) = 32 dBμV/m Level in µV/m = Common Antilogarithm [(32 dBμV/m)/20] = 39.8 μV/m FCC ID: PQN44234TX27 10

INTERTEK TESTING SERVICES 3.2 Radiated Emission Configuration Photograph Worst Case Radiated Emission 54.290 MHz For electronic filing, the worst case radiated emission configuration photograph is saved with filename: radiated photos.doc FCC ID: PQN44234TX27 11

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 3.2 dB TEST PERSONNEL: Signature Gary M. K. Li, Compliance Engineer Typed/Printed Name November 19, 2007 Date FCC ID: PQN44234TX27 12

INTERTEK TESTING SERVICES Applicant: Spin Master Toys Far East Ltd. Date of Test: October 24, 2007 Model: 44234 Mode: TX Sample: 1/2 Table 1 Radiated Emissions Pre- Antenna Average Net Limit Polari- Frequency Reading Amp Factor Factor at 3m at 3m Margin zation (MHz) (dBμV) (dB) (dB) (-dB) (dBμV/m) (dBμV/m) (dB) V 27.145 73.8 0 9.5 18.9 64.4 80.0 -15.6 V 54.290 41.8 16 11.0 - 36.8 40.0 -3.2 H 81.435 42.2 16 7.0 - 33.2 40.0 -6.8 H 108.580 33.7 16 14.0 - 31.7 43.5 -11.8 H 135.725 34.1 16 14.0 - 32.1 43.5 -11.4 H 162.870 33.7 16 16.0 - 33.7 43.5 -9.8 H 190.015 32.0 16 16.0 - 32.0 43.5 -11.5 H 217.160 30.0 16 17.0 - 31.0 46.0 -15.0 H 244.305 26.7 16 20.0 - 30.7 46.0 -15.3 H 271.450 24.4 16 22.0 - 30.4 46.0 -15.6 H 298.595 24.2 16 22.0 - 30.2 46.0 -15.8 Notes: 1. Peak Detector Data unless otherwise stated. 2. 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. 3. Negative value in the margin column shows emission below limit. 4. Loop antenna is used for the emissions below 30 MHz. 5. Horn antenna is used for the emissions over 1000MHz. *Emission within the restricted band meets the requirement of part 15.205. The corresponding limit as per 15.209 is based on Quasi peak detector data for frequencies below 1000 MHz and peak detector data with average factor for frequencies over 1000 MHz. Test Engineer: Gary M. K. Li FCC ID: PQN44234TX27 13

INTERTEK TESTING SERVICES Applicant: Spin Master Toys Far East Ltd. Date of Test: October 24, 2007 Model: 44234 (TX) Mode: Charging Sample: 1/2 Table 2 Radiated Emissions Pre- Antenna Net Limit Frequency Reading amp Factor at 3m at 3m Margin Polarization (MHz) (dBμV) (dB) (dB) (dBμV/m) (dBμV/m) (dB) V 36.121 34.6 16 10.0 28.6 40.0 -11.4 V 42.139 34.9 16 10.0 28.9 40.0 -11.1 V 48.134 34.2 16 11.0 29.2 40.0 -10.8 V 54.107 34.0 16 11.0 29.0 40.0 -11.0 V 60.144 34.7 16 10.0 28.7 40.0 -11.3 V 66.149 35.4 16 9.0 28.4 40.0 -11.6 Notes: Negative signs (-) in the margin column signify levels below the limit. Test Engineer: Gary M. K. Li FCC ID: PQN44234TX27 14

INTERTEK TESTING SERVICES EXHIBIT 4 EQUIPMENT PHOTOGRAPHS FCC ID: PQN44234TX27 15

INTERTEK TESTING SERVICES 4.0 Equipment Photographs For electronic filing, the photographs are saved with filename: external photos.doc and internal photos.doc FCC ID: PQN44234TX27 16

INTERTEK TESTING SERVICES EXHIBIT 5 PRODUCT LABELLING FCC ID: PQN44234TX27 17

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: PQN44234TX27 18

INTERTEK TESTING SERVICES EXHIBIT 6 TECHNICAL SPECIFICATIONS FCC ID: PQN44234TX27 19

INTERTEK TESTING SERVICES 6.0 Technical Specifications For electronic filing, the block diagram and schematics are saved with filename: block.pdf and circuit.pdf FCC ID: PQN44234TX27 20

INTERTEK TESTING SERVICES EXHIBIT 7 INSTRUCTION MANUAL FCC ID: PQN44234TX27 21

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: PQN44234TX27 22

INTERTEK TESTING SERVICES EXHIBIT 8 MISCELLANEOUS INFORMATION FCC ID: PQN44234TX27 23

INTERTEK TESTING SERVICES 8.0 Miscellaneous Information This miscellaneous information includes details of the measured bandwidth, the test procedure and calculation of factors such as pulse desensitization and averaging factor. FCC ID: PQN44234TX27 24

INTERTEK TESTING SERVICES 8.1 Measured Bandwidth The plot saved in bw.pdf which shows the fundamental emission is confined in the specified band. And it also shows that the emission is at least 39 dB below the carrier level at the band edge (26.96 and 27.28 MHz). It meets the requirement of Section 15.227(b). Figure 8.1 Bandwidth FCC ID: PQN44234TX27 25

INTERTEK TESTING SERVICES 8.2 Discussion of Pulse Desensitization The determination of pulse desensitivity was made in accordance with Hewlett Packard Application Note 150-2, Spectrum Analysis ... Pulsed RF. The effective period (Teff) was approximately 540 µs for a digital "1" bit, as shown in the plots of Exhibit 8.3. With a resolution bandwidth (3 dB) of 100 kHz, the pulse desensitivity factor was 0 dB. FCC ID: PQN44234TX27 26

INTERTEK TESTING SERVICES 8.3 Calculation of Average Factor (Worst-case: To control the RC toy helicopter flying forward in maximum speed) Averaging factor in dB = 20 log (duty cycle) The specification for output field strengths in accordance with the FCC rules specify measurements with an average detector. During testing, a spectrum analyzer incorporating a peak detector was used. Therefore, a reduction factor can be applied to the resultant peak signal level and compared to the limit for measurement instrumentation incorporating an average detector. The time period over which the duty cycle is measured is 100 milliseconds, or the repetition cycle, whichever is a shorter time frame. The worst case (highest percentage on) duty cycle is used for the calculation. The duty cycle is measured by placing the spectrum analyzer in zero scan (receiver mode) and linear mode at maximum bandwidth (3 MHz at 3 dB down) and viewing the resulting time domain signal output from the analyzer on a Tektronix oscilloscope. The oscilloscope is used because of its superior time base and triggering facilities. A plot of the worst-case duty cycle as detected in this manner are saved with filename: af.pdf The duty cycle is simply the on-time divided by the period: The duration of one cycle = 100 ms Effective period of the cycle = 1 x 2.16 ms + 17 x 540 µs = 11.34 ms DC = 11.34 ms / 100 ms = 0.1134 or 11.34% Therefore, the averaging factor is found by 20 log10 0.1134 = -18.9 dB FCC ID: PQN44234TX27 27

INTERTEK TESTING SERVICES 8.4 Emissions Test Procedures The following is a description of the test procedure used by Intertek Testing Services in the measurements of transmitters operating under Part 15, Subpart C rules. The test set-up and procedures described below are designed to meet the requirements of ANSI C63.4 - 2003. The transmitting equipment under test (EUT) is placed on a wooden turntable which is four feet in diameter and approximately one meter in height above the ground plane. 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 EUT is adjusted through all three orthogonal axes to obtain maximum emission levels. The antenna height and polarization are varied during the testing to search for maximum signal levels. 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: PQN44234TX27 28

INTERTEK TESTING SERVICES 8.4 Emissions Test Procedures (cont'd) 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 are made as described in ANSI C63.4 - 2003. 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. Transmitter measurements are normally conducted at a measurement distance of three meters. However, to assure low enough noise floor in the restricted bands and above 1 GHz, signals are acquired at a distance of one meter or less. All measurements are extrapolated to three meters using inverse scaling, but those measurements taken at a closer distance are so marked. FCC ID: PQN44234TX27 29


Document Created: 2007-11-19 12:47:17
Document Modified: 2007-11-19 12:47:17
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