JT3KT7ASECURITY DEVICE TRANSMITTER

TABLE OF CONTENTS APPLICANT: KARNIG DEVICES, INC. FCC ID: JT3KT7A TEST REPORT CONTAINING: PAGE 1.............TEST PROCEDURE PAGE 2.............CIRCUIT DESCRIPTION & TEST PROCEDURE PAGE 3.............RADIATION INTERFERENCE TEST DATA PAGE 4.............CALCULATION OF DUTY CYCLE PAGE 5.............OCCUPIED BANDWIDTH EXHIBIT ATTACHMENTS: EXHIBIT 1...........POWER OF ATTORNEY LETTER EXHIBIT 2...........BLOCK DIAGRAM EXHIBIT 3...........SCHEMATIC EXHIBIT 4...........PARTS LIST EXHIBIT 5...........FCC ID LABEL SAMPLE EXHIBIT 6...........SKETCH OF FCC ID LABEL LOCATION EXHIBIT 7A-7K.......USER'S MANUAL EXHIBIT 8...........EXTERNAL FRONT VIEW PHOTOGRAPH EXHIBIT 9...........EXTERNAL REAR VIEW PHOTOGRAPH EXHIBIT 10..........INTERNAL COMPONENT SIDE PHOTOGRAPH EXHIBIT 11..........INTERNAL SOLDER SIDE PHOTOGRAPH EXHIBIT 12..........DUTY CYCLE PLOT - SMALL PULSES EXHIBIT 13..........DUTY CYCLE PLOT - LARGE PULSES EXHIBIT 14..........DUTY CYCLE PLOT EXHIBIT 15..........OCCUPIED BANDWIDTH PLOT APPLICANT: KARNIG DEVICES, INC. FCC ID: JT3KT7A REPORT #: F:\CUS\K\KARNIG\KDI316U8.RPT PAGE: TABLE OF CONTENTS LIST APPLICANT: KARNIG DEVICES, INC. FCC ID: JT3KT7A TEST EQUIPMENT LIST 1. Spectrum Analyzer: Hewlett Packard 8566B - Opt 462, w/ preselector 85685A, & Quasi-Peak Adapter HP 8565OA, & HP 8449B - OPT H02 Cal. 6/26/98 2. Signal Generator, Hewlett Packard 8640B, cal. 10/1/98 3. Eaton Biconnical Antenna Model 94455-1 20-200 MHz Serial No. 0997 Cal. 5/15/98 4. Electro-Metric Dipole Kit, 20-1000 MHz, Model TDA-30 10/15/98 5. Electro-Metric Horn 1-18 GHz, Model RGA-180, Cal. 8/15/98 6. Electro-Metric Antennas Model TDS-25-1, TDS-25-2, 5/15/97 7. Electro-Metric Line Impedance Stabilization Network Model No. EM-7821, Serial No. 101; 100KHz-30MHz 50uH. 12/3/97 8. Electro-Metric Line Impedance Stabilization Network Model No. EM-7820, Serial No. 2682; 10KHz-30MHz 50uH. 12/3/97 9. Special low loss cable was used above 1 GHz TEST PROCEDURE GENERAL: This report shall NOT be reproduced except in full without the written approval of TIMCO ENGINEERING, INC. RADIATION INTERFERENCE: The test procedure used was ANSI STANDARD C63.4-1992 using a HEWLETT PACKARD spectrum analyzer with a prese- lector. The bandwidth of the spectrum analyzer was 100 kHz with an appropriate sweep speed. The analyzer was calibrated in dB above a microvolt at the output of the antenna. The resolution bandwidth was 100KHz and the video bandwidth was 300KHz. The ambient temperature of the UUT was 75.6oF with a humidity of 85%. FORMULA OF CONVERSION FACTORS: The Field Strength at 3m was estab- lished by adding the meter reading of the spectrum analyzer (which is set to read in units of dBuV) to the antenna correction factor sup- plied by the antenna manufacturer. The antenna correction factors are stated in terms of dB. The gain of the Preselector was accounted for in the Spectrum Analyzer Meter Reading. Example: Freq (MHz) METER READING + ACF = FS 33 20 dBuV + 10.36 dB = 30.36 dBuV/m @ 3m APPLICANT: KARNIG DEVICES, INC. FCC ID: JT3KT7A REPORT #: F:\CUS\K\KARNIG\KDI316U8.RPT PAGE #: 1 TEST PROCEDURES CONTD. ANSI STANDARD C63.4-1992 10.1.7 MEASUREMENT PROCEDURES: The UUT was placed on a table 80 cm high and with dimensions of 1m by 1.5m. The UUT was placed in the center of the table. The table used for radiat- ed measurements is capable of continuous rotation. The spectrum was scanned from 30 MHz to 10th harmonic of the fundamental. Peak readings were taken in three (3) orthogonal planes and the high- est readings were converted to average readings based on the duration of "ON" time. Measurements were made by TIMCO ENGINEERING INC. at the registered open field test site located at 6051 N.W. 19th Lane, Gainesville, Fl 32605. When an emission was found, the table was rotated to produce the maximum signal strength. At this point, the antenna was raised and lowered from 1m to 4m. The antenna was placed in both the horizontal and vertical planes. RULES:2.1033(b)(4) CIRCUIT DESCRIPTION This unit is a low power security device transmitter. The oscil- lator is an LC oscillator formed by the transistor TR1 and the Tuned Circuit made up of antenna L1, C5, C2, C4 & C3. The inductor is print- ed on the PCB. The digital code is provided by the integrated circuit IC1. The unit is completely self contained and is powered by a 12Volt batteries. The calculations are shown in the report and the duty cycle was 0.51%. ANTENNA & GROUND: This unit uses the PCB inductor as the antenna. There is no provision for an external antenna. APPLICANT: KARNIG DEVICES, INC. FCC ID: JT3KT7A REPORT #: F:\CUS\K\KARNIG\KDI316U8.RPT PAGE #: 2 APPLICANT: KARNIG DEVICES, INC. FCC ID: JT3KT7A NAME OF TEST: RADIATION INTERFERENCE RULES PART NO.: 15.231 REQUIREMENTS: Fundamental Field Strength Field Strength of Frequency of Fundamental Harmonics and Spurious MHz dBuV Emissions (dBuV/m @ 3m) 40.66 to 40.70 67.04 47.04 70 to 130 61.94 41.94 130 to 174 61.94 to 71.48 41.94 to 51.48 174 to 260 71.48 51.48 260 to 470 71.48 to 81.94 51.48 to 61.94 470 and above 81.94 61.94 THE LIMIT FOR AVERAGE FIELD STRENGTH dBuV/m FOR THE FUNDAMENTAL FREQUENCY= 80.82 dBuV/m dBuV/m. NO FUNDAMENTAL IS ALLOWED IN THE RESTRICTED BANDS. THE LIMIT FOR AVERAGE FIELD STRENGTH dBuV/m FOR THE HARMONICS AND SPURIOUS FREQUENCIES = 60.82 dBuV/m dBuV/m. SPURIOUS IN THE RESTRICTED BANDS MUST BE LESS THAN 54dBuV/m OR 15.209. TEST DATA: PEAK AVERAGE EMISSION METER COAX FIELD FIELD FREQ. READING LOSS ACF STRNGTH STRNGTH MARGIN MHz @ 3m dBuV dB dB dBuV/m dBuV/m dB ANT. 434.17 54.20 1.60 17.79 73.59 67.74 13.09 V 868.34 8.90 2.90 23.82 35.62 29.77 31.05 V 1302.51R 10.10 1.00 25.21 36.31 30.46 23.54 H 1736.68 7.40 1.00 26.95 35.35 29.50 31.33 H 2170.85 4.10 1.06 28.43 33.58 27.73 33.09 H 2605.02 2.20 1.12 29.51 32.83 26.98 33.84 V 3039.19 1.70 1.19 30.60 33.48 27.64 33.19 H 3473.36 0.90 1.25 31.68 33.83 27.99 32.84 H 3907.53R 0.10 1.32 32.77 34.19 28.34 25.66 V 4341.70R 0.10 1.38 33.38 34.87 29.02 24.98 H SAMPLE CALCULATION OF LIMIT @ 303…

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