ESVDS835IPassive Infrared/Microwave Intrusion Detector

December 29, 2000Certification Grant Federal Communications Commission Office of Engineering and Technology Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, Maryland 21046 Attention: Examiner This letter transmits a copy of the application for equipment authorization for the following Model DS 835iT TriTech Microwave/PIR Intrusion Detector. Submitted is the FCC Form 731 (Application for Equipment Authorization – Radio Frequency Devices) and the required exhibits. Elite will be happy to answer any questions or concerns you might have with this grant of certification. Please contact Richard King or Ray Klouda by telephone or e-mail at the following numbers: The following correspondence and replies were used to resolve issues between Elite and the applicant regarding the certification: 1. A distance correction factor of 40dB/decade was used. The correction factor is not justified or allowed in the rules CFR 15.31(f)(1). Upon investigation of the application the applicant was informed to use 20dB/decade instead of 40dB/decade. Analysis performed shows that reducing factor would not effect compliance. Telephone:(630) 495-9770 E-mail:reking@e litetest.com Sincerely, Richard E. King Certification Department Coordinator ELITE ELECTRONIC ENGINEERING

DATE DRAWN DRAWING NUMBER DRAWING TITLE DRAWN BY: GJR APPR BY: SCALE: 3:1 A45321REV-B ds ® SHEET 1 OF 1 DETECTION SYSTEMS, INC. DS835i FCC Label 130 PERINTON PARKWAY FAIRPORT, NEW YORK, 14450-9099, USA (716) 223 4060, FAX (716) 223 9180 PART NO. 45321B DTL ECR# DR AUTH DATE SYMREVISION RECORD ACCEPTED DRAWING 5/20/94 B5/23/00 NOTES: 1. Dimensions are in inches. 2. Printing to be black on white background. 3. Borders not to show. 4. Paper to be white 60# litho stock with pressure sensitive adhesive backing (ref. drawing # 22941). 5. To be supplied on rolls. BD FCC ID: ESVDS835I DETECTION SYSTEMS, INC. THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION. P/N 45321B 0.45 ±.020 1.75 ±.020

REPORT OF MEASUREMENTS GENERAL Applicant:Detection Systems, Inc. Device:10.525 GHz Field Disturbance Sensor Model:DS 835iT Serial Number:N/A FCC ID:ESVDS835I Input Power Requirements: 9 to 15 VDC, 42 mA (12 VDC Nominal) Rule Section:Part 15, Subpart C, Section 15.245 TEST METHODS PERFORMED 15.245 (b)Radiated Emissions, Fundamental 15.245 (b)(1) Radiated Emissions, Harmonics 15.245 (b)(3) Radiated Emissions, Band Edges 15.245 (b)(3) Radiated Emissions, Spurious Emissions, 30 MHz to 52.625 GHz TEST RESULTS 15.245 (a)The device is an intentional radiator used as a field disturbance sensor. 15.245 (b)The device operates within the 10.500 to 10.550 GHz frequency band. The field strength of the fundamental emission did not exceed 2500 millivolts per meter, average. 15.245 (b)(1)The device does not produce harmonic emissions below 17.7 GHz. 15.245 (b)(1)(i)The device is intended to be used only within buildings and the field strength of harmonic emissions did not exceed 25.0 millivolts per meter. 15.245 (b)(2)All radiated emissions measurements were extrapolated to the specified 3 meter test distance. 15.245 (b)(3)The emissions radiated outside of the specified frequency band of 10.500 to 10.550 GHz did not exceed the general radiated emission limits of 15.209. 15.245 (b)(4)The requirements of 15.35 for averaging pulsed emissions and limiting peak emissions were met. NOTES 15.31 (a)(b)All measurements were made in accordance with ANSI C63.4:1992. 15.31 (c)The device does not use swept frequency techniques. 15.31 (d)All testing was performed on Retlif Testing Laboratories Ronkonkoma, NY test site which has been listed with the FCC. 15.31 (e) Variation of the radiated signal level of the fundamental frequency component was performed with the supply voltage varied between 85 and 115% of nominal (12 VDC). This was also performed at 85% of the minimum and 115% of the maximum rated input voltage range. 15.31 (f)(1)Where testing was performed at distances other than the specified test distance, the obtained readings were extrapolated to the specified test distance using an inverse linear-distance extrapolation factor (20dB / decade) for measurements between 30 MHz and 40 GHz. For measurements at frequencies above 40 GHz, an inverse linear-distance squared factor ( 40dB / decade) was utilized. 15.31 (f)(5)The device was rotated 360° in order to maximize the radiated emissions. The maximum field strength observed has been reported. 15.31 (g)All consumer accessible controls were adjusted in order to maximize emissions (MW Range Control). A one meter length of unshielded twisted pair wire was connected to each of the relay and tamper outputs. 15.31 (m)The device operates at a single frequency of 10.525 GHz. 15.31 (o)All emissions within 20 dB of the specified limits have been reported unless otherwise stated. 15.33 (a)(2)The device operates above 10 and below 30 GHz at a frequency of 10.525 GHz. Therefore radiated emissions measurements were made from 30 MHZ to 52.625 GHz, the fifth harmonic. DUTY CYCLE Twenty microsecond (20 μSec) pulses are applied to the gunn diode at a repetition rate of 1kHz. This yields a duty cycle of 2%, 20 μSec divided by 1000 μSec. This duty cycle was applied to the obtained peak readings in order to determine the average value of the emissions. TEST DISTANCES In order to obtain adequate system sensitivity at the harmonic frequencies of interest, it was necessary to perform certain measurements at a distance less than 3 meters. Care was taken to ensure that all measurements were taken in the far field region. The antenna was determined to be in the far field IFF: d ≥ 2 D 2 ⁄ λ Where: d = Test Distance D = Largest Antenna Length λ = Wavelength at the Frequency of Interest Solving for d yields the minimum test distances shown in the table below. Also shown is the actual test distance utilized. Frequency GHz Minimum Test Distance Meters Actual Test Distance Meters 10.5252.73 21.0501.52 31.5751.01 42.1000.51 52.6250.71 SPECTRUM ANALYZER DESENSITIZATION CONSIDERATIONS Due to the nature of the emissions being measured, care was taken to ensure that the resolution bandwidth of the spectrum analyzer was adequate to provide accurate peak field strength measurements. The following formula was utilized: Pulse Desensitization (δ) = 20 log (Pulsewidth * bandwidth * 1.5) Setting the above equal to zero and utilizing the 20 microsecond pulsewidth yields a minimum required bandwidth of 33.3 kHz. The 1 MHz bandwidth specified in ANSI C63.4 was utilized for all fundamental and harmonic measurements. TEST DATA RADIATED EMISSIONS, FUNDAMENTAL 15.245 (b) TEST SAMPLE: 10.525 GHz Field Disturbance Sensor FCC ID: ESVDS835I APPLICANT: Detection Systems, Inc. TEST METHOD: Radiated Emissions, Fundamental SPECIFICATION: FCC Part 15, Section 15.245 (b) PERFORMED BY: P.Lananna DATE: 5/02/00 Field Strength of Fundamental Frequency GHz Antenna Position H / V EUT O rie nta tio n X / Y/ Z Meter Reading dBuV Antenna Factor +dB Corrected Reading dBuV/m C onverted Reading mV/m Limit at 3 Meters mV/m 10.525HX81.430.0 111.4 371.52,500 VX63.530.093.547.32,500 HY68.530.098.584.12,500 VY66.530.096.566.82,500 HZ69.430.099.493.32,500 VZ77.130.0 107.1 226.52,500 Detector Function: Peak Test Distance: 3 Meters Resolution Bandwidth: 1 MHz Video Bandwidth: 3 MHz TEST SAMPLE: 10.525 GHz Field Disturbance Sensor FCC ID: ESVDS835I APPLICANT: Detection Systems, Inc. TEST METHOD: Radiated Emissions, Fundamental, Input Voltage Variation SPECIFICATION: FCC Part 15, Section 15.245 (b), 15.31(e) PERFORMED BY: P.Lananna DATE: 5/02/00 Input Voltage Variation Frequency GHz Test Voltage % N o mina l Test Voltage VDC Meter Reading dBuV Antenna Factor +dB Corrected Reading dBuV/m C onverted Reading mV/m Limit at 3 Meters mV/m 10.52585% (Vmin) 7.6581.430.0 111.4 371.52,500 85% (Vnom) 10.281.430.0 111.4 371.52,500 100% (Vnom) 12.081.430.0 111.4 371.52,500 115% (Vnom) 13.881.430.0 111.4 371.52,500 115% (Vmax) 17.2581.430.0 111.4 371.52,500 Det…

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