LQN1821

FCC CERTIFICATION TEST REPORT for Connaught Electronics Ltd. IDA Industrial Estate Dunmore Road, Tuam Co. Galway, Ireland FCC ID: LQN1821 January 31, 2000 WLL PROJECT #: 5553X This report may not be reproduced, except in full, without the prior written consent of Washington Laboratories, Ltd. Connaught Electronics Ltd. FCC ID: LQN1821 WLL Project #: 5553X i TABLE OF CONTENTS Statement of Qualifications Letter of Agency ____________________________________________________ 1.0INTRODUCTION........................................................................................................................................... 3 1.1S UMMARY...................................................................................................................................................... 3 2.0DESCRIPTION OF EQUIPMENT UNDER TEST (EUT) ......................................................................... 3 2.1O N-BOARD OSCILLATORS.............................................................................................................................. 3 3.0TEST CONFIGURATION ............................................................................................................................. 4 3.1T ESTING ALGORITHM..................................................................................................................................... 4 3.2C ONDUCTED EMISSIONS TESTING.................................................................................................................. 4 3.3R ADIATED EMISSIONS TESTING...................................................................................................................... 4 3.3.1Radiated Data Reduction and Reporting............................................................................................... 5 FCC 15.231 3M Radiated Emissions Data – Site 2 .............................................................................................................6 FCC 15.231 3M Radiated Emissions Data – Site 2 .............................................................................................................7 TABLES Table 1.Radiated Emissions Results Table 2.System Under Test Table 3.Interface Cables Used Table 4.Measurement Equipment Used EXHIBITS Exhibit 1.Duty Cycle Calculation/Plot Exhibit 2.Bandwidth Plot APPENDICES Appendix A.Statement of Measurement Uncertainty Connaught Electronics Ltd. FCC ID: LQN1821 WLL Project #: 5553X 1 Connaught Electronics Ltd. FCC ID: LQN1821 WLL Project #: 5553X 2 Connaught Electronics Ltd. FCC ID: LQN1821 WLL Project #: 5553X 3 FCC CERTIFICATION TEST REPORT for FCC ID: LQN1821 1.0Introduction This report has been prepared on behalf of Connaught Electronics Ltd. to support the attached Application for Equipment Authorization. The test and application are submitted for a Periodic Intentional Radiator under Part 15.231 of the FCC Rules and Regulations. The Equipment Under Test was the Range Rover Remote Keyless Entry RF Transmitter. All measurements herein were performed according to the 1992 version of ANSI C63.4. The measurement equipment conforms to ANSI C63.2 Specifications for Electromagnetic Noise and field Strength Instrumentation. Calibration checks are made periodically to verify proper performance of the measuring instrumentation. All measurements are performed at Washington Laboratories, Ltd. test center in Gaithersburg, MD. Site description and site attenuation data have been placed on file with the FCC's Sampling and Measurements Branch at the FCC laboratory in Columbia, MD. Washington Laboratories, Ltd. has been accepted by the FCC and approved by NIST NVLAP (NVLAP Lab Code: 200066-0) as an independent FCC test laboratory. All results reported herein relate only to the equipment tested. The measurement uncertainty of the data contained herein is ±2.3 dB. Refer to Appendix A for Statement of Measurement Uncertainty. This report shall not be used to claim product endorsement by NVLAP or any agency of the US Government. 1.1Summary The Connaught Electronics Ltd. Range Rover RF Transmitter complies with the limits for a Periodic Intentional Radiator under Part 15.231 of the FCC Rules and Regulations. 2.0Description of Equipment Under Test (EUT) The Connaught Electronics Ltd. Range Rover RF Transmitter (EUT) is a 315MHz low power transmitter keyfob that is used as a wireless remote control for vehicle keyless entry systems. The battery powered transmitter is manually operated and used with the Connaught STAR Rx 1821 Receiver and was tested under the FCC DOC program. The unit stops transmitting as soon as the button is released. 2.1On-board Oscillators The Connaught Electronics Ltd. Range Rover RF Transmitter contains a 4.7547MHz oscillator and 10.7MHz SAW oscillator. Connaught Electronics Ltd. FCC ID: LQN1821 WLL Project #: 5553X 4 3.0Test Configuration To complete the test configuration required by the FCC, the transmitter was tested in all three orthogonal planes. 3.1Testing Algorithm The transmitter was turned on and constantly transmitting. The system was tested in all three orthogonal planes. Worst case emissions are recorded in the data tables. 3.2Conducted Emissions Testing Conducted emissions testing was not performed as the unit is DC powered. 3.3Radiated Emissions Testing The EUT was placed on an 80 cm high 1 x 1.5 meters non-conductive motorized turntable for radiated testing on a 3 meter open field test site. The emissions from the EUT were measured continuously at every azimuth by rotating the turntable. Biconical and log periodic broadband antennas were mounted on an antenna mast to determine the height of maximum emissions. The height of the antenna was varied between 1 and 4 meters. The peripherals were placed on the table in accordance with ANSI C63.4-1992. Cables were varied in position to produce maximum emissions. Both the horizontal and vertical field components were measured. The output from the antenna was connected, via a preamplifier, to…

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