NBG8137TAuto Security Key TX

TABLE OF CONTENTS APPLICANT: HELLA KG HUECK & CO. FCC ID: NBG8137T TEST REPORT CONTAINING: PAGE 1-2...........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...........CIRCUIT DESCRIPTION EXHIBIT 4-5.........SCHEMATICS EXHIBIT 6-8.........PARTS LIST EXHIBIT 9...........FCC ID LABEL SAMPLE EXHIBIT 10..........SKETCH OF FCC ID LABEL LOCATION EXHIBIT 11..........DUTY CYCLE PLOT EXHIBIT 12..........DUTY CYCLE PLOT EXHIBIT 13..........OCCUPIED BANDWIDTH PLOT EXHIBIT 14..........FRONT VIEW EXTERNAL PHOTO EXHIBIT 15..........REAR VIEW EXTERNAL PHOTO EXHIBIT 16..........SIDE VIEW EXTERNAL PHOTO EXHIBIT 17..........LABEL VIEW EXTERNAL PHOTO EXHIBIT 18..........COMPONENT SIDE INTERNAL PHOTO EXHIBIT 19..........COPPER SIDE INTERNAL PHOTO APPLICANT: HELLA KG HUECK & CO. FCC ID: NBG8137T REPORT #: F:\CUS\H\HELLA\HEL152A8.RPT PAGE: TABLE OF CONTENTS LIST APPLICANT: HELLA KG HUECK & CO. FCC ID: NBG8137T TEST EQUIPMENT LIST 1. Spectrum Analyzer: Hewlett Packard 8566B, with preselector HP 85685A, & Quasi-Peak Adapter HP 8565OA, & HP 8449B OPT H02 Cal. 9/30/97 2. Eaton Biconnical Antenna Model 94455-1 20-200 MHz Serial No. 0997 Cal. 9/17/97 3. Electro-Metric Dipole Kit, 20-1000 MHz, Model TDA 25 cal. 5/15/97 4. Electro-Metric Horn 1-18 GHz, Model RGA-180, Cal. 9/24/97 5. Electro-Metric Antennas Model TDS-25-1, TDS-25-2, 9/3/97 6. Electro-Metric Line Impedance Stabilization Network Model No. EM-7821, Serial No. 101; 100KHz-30MHz 50uH. 9/30/97 7. Electro-Metric Line Impedance Stabilization Network Model No. EM-7820, Serial No. 2682; 10KHz-30MHz 50uH. 9/30/97 8. 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 98.3oF with a humidity of 40%. 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: HELLA KG HUECK & CO. FCC ID: NBG8137T REPORT #: F:\CUS\H\HELLA\HEL152A8.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. APPLICANT: HELLA KG HUECK & CO. FCC ID: NBG8137T REPORT #: F:\CUS\H\HELLA\HEL152A8.RPT PAGE #: 2 APPLICANT: HELLA KG HUECK & CO. FCC ID: NBG8137T 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= 75.62 dBuV/m dBuV/m. THE LIMIT FOR AVERAGE FIELD STRENGTH dBuV/m FOR THE HARMONICS AND SPURIOUS FREQUENCIES = 55.62 dBuV/m dBuV/m 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. 315.01 58.44 1.40 15.16 75.00 68.89 6.73 V 630.01 16.63 1.60 20.76 38.99 32.88 22.74 V 945.02 8.83 2.90 24.26 35.99 29.88 25.74 V SAMPLE CALCULATION OF LIMIT @ 303 MHz: (470 - 260)Mhz = 210 MHz (12500 - 3750)uV/m = 8750 uV/m 8750uV/m/210MHz = 41.67 uV/m/MHz (303-260)MHz = 43 MHz 43 MHz * 41.67 uV/m/MHz = 1791.81 uV/m (1791.81 + 3750)uV/m = 5541.81 uV/m limit @ 303 MHz The transmitter ceases transmitting when the button is released. TEST RESULTS: The unit DOES meet the FCC requirements. PERFORMED BY: S. S. SANDERS DATE TESTED: 8/10/98 APPLICANT: HELLA KG HUECK & CO. FCC ID: NBG8137T REPORT #: F:\CUS\H\HELLA\HEL152A8.RPT PAGE #: 3 APPLICANT: HELLA KG HUECK & CO. FCC ID: NBG8137T CALCULATION OF DUTY CYCLE: The period of the pulse train is determined by observ- ing it on an oscilloscope or a spectrum analyzer with zero(0) frequency span. A plot is then made of the pulse train with a sweep time of 100milliseconds. This sweep determines the duration of the pulse train, which in this case is 47.12 milliseconds. This sweep allows the determination of the number of and type of pulses, i.e. long & short. Plots are then made showing the duration of each type of pulse and its duration. From the 100millisecond Plot the number of a given type of pulse is then multiplied by…

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