KYIJW-160RWireless Stereo Headphones

FCC ID: KYIJW-160R STD Manufacturing Ltd. Application For Certification (FCC ID: KYIJW-160R) Superheterodyne Receiver WO# 9906951 DY/km July 20, 1999 INTERTEK TESTING SERVICES FCC ID: KYIJW-160R 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: KYIJW-160R ii MEASUREMENT/TECHNICAL REPORT Wisetronics Limited - MODEL: JENSEN JW160R FCC ID: KYIJW-160R This report concerns (check one:)Original Grant X Class II Change Equipment Type: Superheterodyne 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 unintentional radiator - the new 47 CFR [10-1-98 Edition] provision. Report prepared by:Daniel Yau Intertek Testing Services Hong Kong Ltd. 2/F., Garment Centre, 576, Castle Peak Road, Kowloon, Hong Kong Phone: 852-2173-8542 Fax:852-2371-0914 INTERTEK TESTING SERVICES FCC ID: KYIJW-160R iii Table of Contents 1.0General Description....................................................................................................... 2 1.1Product Description ............................................................................................. 2 1.2Related Submittal(s) Grants ................................................................................ 2 1.3Test Methodology ................................................................................................ 3 1.4Test Facility.......................................................................................................... 3 2.0System Test Configuration............................................................................................ 5 2.1Justification .......................................................................................................... 5 2.2EUT Exercising Software .................................................................................... 5 2.3Support Equipment List and Description ............................................................ 5 2.4Equipment Modification...................................................................................... 6 2.5Special Accessories.............................................................................................. 6 3.0Emission Results............................................................................................................. 8 3.1Field Strength Calculation ................................................................................... 9 3.2Radiated Emission Configuration Photograph................................................... 10 3.3Radiated Emission Data...................................................................................... 11 4.0Equipment Photographs............................................................................................... 14 5.0Product Labelling.......................................................................................................... 16 6.0Technical Specifications............................................................................................... 18 7.0Instruction Manual....................................................................................................... 20 8.0Miscellaneous Information........................................................................................... 22 8.1Discussion of Pulse Desensitization................................................................... 23 8.2Calculation of Average Factor............................................................................ 24 8.3Emissions Test Procedures .................................................................................. 25 8.3Emissions Test Procedures (cont’d) ................................................................... 26 INTERTEK TESTING SERVICES FCC ID: KYIJW-160R iv List of attached file Exhibit typeFile Descriptionfilename Cover LetterLetter of Agencyletter.pdf Test ReportTest Reportreport.doc Operation DescriptionTechnical Descriptiondescri.pdf Test Setup PhotoRadiated Emissionradiated1.jpg, to radiated2.jpg External PhotoExternal Photoophoto1.jpg, ophoto2.jpg Internal PhotoInternal Photoiphoto1.jpg to iphoto5.jpg Block DiagramBlock Diagramblock.pdf SchematicsCircuit Diagramcircuit.pdf ID Label/LocationLabel Artwork and Locationlabel.pdf User ManualUser Manualmanual.pdf INTERTEK TESTING SERVICES FCC ID: KYIJW-160R 1 EXHIBIT 1 GENERAL DESCRIPTION INTERTEK TESTING SERVICES FCC ID: KYIJW-160R 2 1.0General Description 1.1Product Description The Equipment Under Test (EUT) is a superheterodyne receiver portion of a wireless headphone system operating at 913.5MHz - 914.5MHz. The EUT is powered by two 1.5V “AAA” size batteries. Once it is switched on, it receives RF signal that is transmitted by a transmitter portion of the wireless headphone system. There are two knobs on the EUT that are used to tune the operating frequency and volume. For electronic filing, the technical description is saved with filename: descri.pdf. 1.2Related Submittal(s) Grants This is an application for Certification of a receiver. The FCC ID for the transmitter associated with this receiver is KYIJW-160T and has been filed at the same time as this application. INTERTEK TESTING SERVICES FCC ID: KYIJW-160R 3 1.3Test Methodology Radiated emission measurements were performed according to the procedures in ANSI C63.4 (1992). All radiated measurements were performed in an Open Area Test Site. Preliminary scans were performed in the Open Area Test Site only to determine worst case…

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