Part 1A

FCC ID: HYRDBRS201

Test Report

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FCCID_418837

RUBICOM SYSTEMS, INC. FCC INTENTIONAL RADIATOR TEST REPORT FOR THE ORION ENGINEERING, INC. DUAL BEAM RADAR SENSOR MODEL 1006812 RSIJULY 2003 REVISED MARCH 2004 Rubicom Systems, Inc. 284 West Drive, Suite B Melbourne, Florida 32904

JA-1781 FCC INTENTIONAL RADIATOR TEST REPORT FOR THE ORION ENGINEERING, INC. MODEL 1006812 DUAL BASE RADAR SENSOR S/N: 002 Prepared by: __________________________________________ Joseph G. Barbee Tested by: __________________________________________ Joseph G. Barbee Performed by: Performed for: RUBICOM SYSTEMS, INC. ORION ENGINEERING, INC. 284 West Drive, Suite B 2142 Andrews Ct. Melbourne, Florida 32904 Dunedin, FL 34698 Completed: July 1, 2003 Revised: March 15, 2004 2

JA-1781 TABLE OF CONTENTS Paragraph Title Page ABSTRACT...........................................................................................................3 1.0 INTRODUCTION ...................................................................................................4 1.1 Purpose .................................................................................................................4 1.2 Requirement ..........................................................................................................4 1.3 Unit Under Test Description ..................................................................................4 1.4 Summary of Results ..............................................................................................5 2.0 APPLICABLE DOCUMENTS ...............................................................................6 2.1 Procedures ............................................................................................................6 3.0 TEST SITE DESCRIPTION...................................................................................7 3.1 Environmental Conditions......................................................................................7 4.0 TEST INSTRUMENTATION..................................................................................8 5.0 TEST SAMPLE SETUP AND CONFIGURATIONS ..............................................9 6.0 PROCEDURES AND RESULTS.........................................................................12 6.1 General................................................................................................................12 FIGURE 6.1-1......................................................................................................14 APPENDIX A PRELIMINARY DATA PLOTS ............................................................................15 APPENDIX B RADIATED EMISSIONS DATA PLOTS .............................................................26 APPENDIX C AMBIENT DATA PLOTS ....................................................................................49 3

JA-1781 ABSTRACT This report presents test results of the emanations found emitting from the Orion Engineering, Inc. Model 1006812, Dual Beam Radar Sensor and the comparison of these emissions to the requirements of FCC, Title 47, Part 15.245 Subpart C for Intentional Radiators as required for a field disturbance sensor operating within this 24.075-24.175MHz band. In accordance with Part 15.33(a)(2), radiated measurements were performed to 100GHz. This testing was performed at Rubicom Systems, Inc. (RSI). The testing was performed for Orion Engineering, Inc. under a purchase order no. 3183. The results of this test effort demonstrate compliance of the Dual Beam Radar Sensor to FCC, Title 47, Part 15.245 Subpart C for Intentional Radiators. The transmitter module was tested and found to be compliant. 4

JA-1781 1.0 INTRODUCTION 1.1 Purpose The purpose of this report is to show compliance of the Dual Beam Radar Sensor to the requirements of Part 15.245 of the FCC rules and Regulations (47 CFR, Part 15, Subpart C) for Intentional Radiators and extended testing to 100GHz. The band of operation is 24.075 to 24.175MHz. The tests were performed on RSI’s 3 meter site and in a semi-anechoic chamber at a distance of 1 meter and .33 meters. Distances are noted on the data plots. 1.2 Requirements The test requirements for this intentional radiator are as follows: Radiated (15.245) Frequency (GHz) Field Strength Measurement Distance (m) 24.075 - 24.175 2500 MV/m 127.9dB>µV/m 3 138.4dBµV/m 1 Harmonics 25 MV/m (88dBµV/m) 3 (98dBµV/m) 1 (108dBµV/m) .3 Signals outside the intended band must be attenuated by 40dB below the fundamental or 15.209, whichever is less attenuation (54dBµV/m average, 74dBµV/m Peak). Signals appearing in the restricted bands must meet the requirements of 15.209. 1.3 Unit Under Test Description The Dual Beam Radar Sensor is a microwave Doppler unit operating at 24.125GHz for the purpose of measuring true ground speed. There are two parts to the system: a sensor/transmitter and a display unit. The unit is powered by 12 VDC input. The output is a square wave that varies with the speed. The indicator output lead was 5

JA-1781 terminated across a 10K-ohm resistor during this test. A fan was placed in front of the sensor to give a moving motion, which creates the output signal. 1.4 Summary of Results Paragraph 6.0 of this document presents the measured results of the tabulated levels detected during testing of the units. There were no signals that exceeded the levels of 15.209 except the transmit frequency itself. 6

JA-1781 2.0 APPLICABLE DOCUMENTS The following documents form a part of this report to the extent expressed herein: FCC Code of Federal Regulations title 47, Part 15 ANSI C63.4-2000 FCC Characteristics of Open Field Test Sites, Bulletin OET 55, October 1989 2.1 Procedures Specific procedures that apply to this report can be found in ANSI C63.4- 2000 Paragraphs 8.3.1.1 and 8.3.1.2. 7

JA-1781 3.0 TEST SITE DESCRIPTION This testing was performed at Rubicom Systems, Inc. 3 meter test site. The description of the measurement facility was found to be compliant with the requirements of Section 2.948 of the FCC Rules. A copy of the compliance letter is included as Attachment I. 3.1 Environmental Conditions This test effort was performed between June 20, 2003 and June 26, 2003. Typical conditions in the laboratory during this testing were: Temperature: 78º Barometer: 29.75 inches Humidity: 50% Conditions on the outside test site during the test were: Temperature: 88º Barometer: 29.90 inches Humidity: 80% 8

JA-1781 4.0 TEST INSTRUMENTATION Table 4.0-1 lists the test equipment used during this testing. Qty. Description Manufacturer Model No. Cal. Date 1 Coax Attenuator Hewlett Packard 8494B 01/30/04 1 Bilog Antenna Chase CLB6111B 07/16/03 1 Standard Gain Horn Millitech SGH-22-RP00 NCR 1 Ridge Guide Horn Electro Metrics RGA-180 04/12/04 1 Standard Gain Horn NARDA Model 638 NCR 1 Standard Gain Horn NARDA B637 NCR 1 Standard Gain Horn Flann Microwave 25240-20 NCR 1 Standard Gain Horn Flann Microwave 27240-20 NCR 1 Spectrum Analyzer Advantest R3271 08/02/03 1 Harmonic Mixer OML M28HWD 10/10/03 1 Harmonic Mixer OML M22HWD 10/10/03 1 Harmonic Mixer OML M15HWD 10/10/03 1 Harmonic Mixer OML M10HWD 10/10/03 1 Waveguide Adapter OMNI WR28-SMA NCR 1 Pre-Amplifier 1-26GHz Hewlett Packard 8449B 05/08/04 TABLE 4.0-1 9

JA-1781 5.0 TEST SAMPLE SETUP AND CONFIGURATIONS The unit was placed on a nonconductive table on the 3 meter Open Area Test Site (OATS). The unit was powered by an external battery. Measurements from 30MHz-26.5GHz were formed on the 3 meter site at distances noted on the data sheets. During radiated emissions, over the frequency range of 26.5-100GHz, the unit was placed on the table inside the test chamber (semi-anechoic) and rotated for maximum level at .3 meters distance. Photo 1 shows the typical radiated test setup on the OATS. Photo 2 shows the unit on the test chamber table. 10

JA-1781 PHOTO 1 11

JA-1781 PHOTO 2 12

JA-1781 6.0 PROCEDURES AND RESULTS 6.1 General The unit was placed on a nonconductive table with anechoic material on three sides. The requirement for the first harmonic is to be less than 2500µVolts/m = (127.9dBµV/m) at a 3 meter distance. The harmonics are required to be 40dB below the fundamental. The first harmonic was peaked in amplitude and elevation by moving the EUT for maximum pickup in the narrow beam width. Frequency and amplitude was recorded. Figure 6.1-1 presents the test equipment configuration for each frequency band from 18GHz to 100GHz. Table 6.1-1 presents the measured levels of significant signals detected during this testing. Only the fundamental (24.125GHz) was found above the measurement noise floor. The harmonics and spurs are not detectable over the range of 25.6GHz to 100GHz. The measurement capabilities are included on Table 6.1-1. Plots of the peak and average bands above 26.5GHz are on file at RSI under JA-1974. Appendix A presents the preliminary data taken in the semi-anechoic chamber at 1 meter. This effort is for detecting frequencies of emissions prior to moving to the 3 meter range. Appendix B presents the data plots for 30MHz-1GHz quasi-peak, 1- 26.5GHz peak and 1-26.5GHz average measurements. Only the 24.125GHz TX frequency was found to emit from the unit above the measurement capabilities. Appendix C presents the 3 meter ambient data up to 1.0GHz for the quasi-peak detector, 1-26.5GHz for the peak mode and 1-26.5GHz for average mode. Above 4GHz the ambient does not cause measurement problems in the average mode. 13

JA-1781 In areas where the harmonic levels could not be achieved, the resolution bandwidth was reduced as well as decreasing the distance of measurement. The horn and detector were removed from the tripod and moved around the unit for signal searching. Since the transmit signal is not modulated the decrease in bandwidths do not degrade the amplitude measurement. As a result of this investigation, the signal listed in Table 6.1-1 is the only signal of any significance emitting from the unit under test. Frequency Polarization Measured Level Limit GHz (dBµV/m) 24.125 H 107 127.9 24.125 V 86 127.9 48.25 H&V 98.7 nf 88.9 72.375 H&V 109 nf 88.9 96.50 H&V 126.9 nf 88.9 nf = Noise floor of receiver system. TABULATED DATA TABLE 6.1-1 Measurements were made as close as .3 meters in probing for the harmonics. This would increase the level of the harmonic by approximately 20dB. No signals were detected above the noise floor of the receiver. Calculations Measured level in dBµV + antenna factor + cable loss – amplifier gain + attenuator loss = dBµV/meter. Above 30MHz measurement distance is calculated using 20 log of the difference ratio. The factors are compiled on memory cards for use in the Advantest analyzer. The resultant level plotted on the graphs can be compared directly against the specification limit. 14

JA-1781 15

NARDA Model 638 Standard Gain Horn JA-1781 18-26GHz EQUIPMENT SETUP Advantest 3271 Spectrum Analyzer NARDA Model V637 Standard Gain Horn IF Advantest 3271 26.5-40GHz EQUIPMENT SETUP Spectrum LO Analyzer OML M28HWD Mixer Millitech SGH-22-RP000 Standard Gain Horn IF 33-50GHz EQUIPMENT SETUP Advantest 3271 Spectrum LO Analyzer OML M22HWD Mixer Flann Microwave Model 25240-20 Standard Gain Horn IF Advantest 3271 50-75GHz EQUIPMENT SETUP LO Spectrum Analyzer OML M15HWD Mixer Flann microwave Model 27240-20 Standard Gain Horn IF 75-110GHz EQUIPMENT SETUP Advantest 3271 Spectrum LO Analyzer OML M10HWD Mixer FIGURE 6.1-1 16

JA-1781 APPENDIX A PRELIMINARY DATA PLOTS (30MHz-26.5GHz) 17

JA-1781 DATA SHEET A-1 18

JA-1781 DATA SHEET A-2 19

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Document Created: 2004-05-03 07:09:36
Document Modified: 2004-05-03 07:09:36
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