NZTSF-140Wireless Stereo Audio Transmitter

TABLE OF CONTENTS APPLICANT: ARTCHIEF INDUSTRIES LTD. FCC ID: NZTSF-140 TEST REPORT CONTAINING: PAGE 1..........TEST PROCEDURE PAGE 2..........TEST PROCEDURE CONTD. & CIRCUIT DESCRIPTION PAGE 3..........RADIATION INTERFERENCE TEST DATA PAGE 4..........OCCUPIED BANDWIDTH DATA EXHIBITS CONTAING: EXHIBIT 1........POWER OF ATTORNEY LETTER EXHIBIT 2........BLOCK DIAGRAM EXHIBIT 3........SCHEMATIC EXHIBIT 4........PARTS LIST EXHIBIT 5A-5C....INSTRUCTION MANUAL EXHIBIT 6........FCC ID LABEL SAMPLE AND SKETCH OF LOCATION EXHIBIT 7A.......EXTERNAL FRONT VIEW PHOTOGRAPH EXHIBIT 7B.......EXTERNAL REAR VIEW PHOTOGRAPH EXHIBIT 7C.......INTERNAL COMPONENT SIDE PHOTOGRAPH EXHIBIT 7D.......INTERNAL COPPER SIDE PHOTOGRAPH EXHIBIT 8........OCCUPIED BANDWIDTH PLOT NO MODULATION EXHIBIT 9........OCCUPIED BANDWIDTH PLOT 2500 Hz TONE MODULATION APPLICANT: ARTCHIEF INDUSTRIES LTD. FCC ID: NZTSF-140 REPORT #: F:\CUS\A\ARTCHIEF\ART196U9.RPT TABLE OF CONTENTS LIST APPLICANT: ARTCHIEF INDUSTRIES LTD. FCC ID: NZTSF-140 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. 10/30/98 4. Electro-Metric Dipole Kit, 20-1000 MHz, Model TDA-30 10/31/98 5. Electro-Metric Horn 1-18 GHz, Model RGA-180, Cal. 10/30/98 6. Electro-Metric Antennas Model TDA-30/1-4,Cal. 10/15/98 7. Electro-Metric Line Impedance Stabilization Network Model No. EM-7821, Serial No. 101; 100KHz-30MHz 50uH. Cal.11/19/98 8. Electro-Metric Line Impedance Stabilization Network Model No. EM-7820, Serial No. 2682; 10KHz-30MHz 50uH. Cal. 11/19/98 9. Special low loss cable was used above 1 GHz 10. Tenney Temperature Chamber 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 &tempr& with a humidity of &humr&. 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: ARTCHIEF INDUSTRIES LTD. FCC ID: NZTSF-140 REPORT #: F:\CUS\A\ARTCHIEF\ART196U9.RPT PAGE #: 1 TEST PROCEDURES CONTINUED APPLICANT: ARTCHIEF INDUSTRIES LTD. FCC ID: NZTSF-140 ANSI STANDARD C63.4-1992 10.1.7 MEASUREMENT PROCEDURES: The unit under test was placed on a table 80 cm high and with dimensions of 1m by 1.5m. The table used for radiated measurements is capable of continuous rotation. 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. The situation was similar for the conducted measurement except that the table did not rotate. The EUT was setup as described in ANSIC63.4-1992 with the EUT 40 cm from the vertical ground wall. 2.1033(b)(4) CIRCUIT DESCRIPTION: This unit is a low power wireless microphone operating in the 88- 108 MHz FM broadcast band. Transistor TR2 is an LC oscillator stage. he output of the condenser microphone is fed to the audio amplifier TR2 which frequency modulates the oscillator. The unit is operated on 3 Volts and is powered by two AA batter- ies. ANTENNA & GROUND: This unit uses a short wire antenna. The antenna is self con- tained and there is no provision for connecting an external antenna. No ground connection is provided. The only ground used is the ground track on the PC board. APPLICANT: ARTCHIEF INDUSTRIES LTD. FCC ID: NZTSF-140 REPORT #: F:\CUS\A\ARTCHIEF\ART196U9.RPT PAGE #: 2 APPLICANT: ARTCHIEF INDUSTRIES LTD. FCC ID: NZTSF-140 NAME OF TEST: RADIATION INTERFERENCE RULES PART NO.: 15.239 REQUIREMENTS: CARRIER FREQUENCY WILL NOT EXCEED 48.0 dBuV/m AT 3M. OUT-OF-BAND EMISSIONS SHALL NOT EXCEED: 30 - 88 MHz 40.0 dBuV/M MEASURED AT 3 METERS 88 - 216 MHz 43.5 dBuV/M 216 - 960 MHz 46.0 dBuV/M ABOVE 960 MHz 54.0 dBuV/M TEST DATA: EMISSION METER READING COAX ANTENNA FIELD FREQUENCY AT 3 METERS LOSS CORRECTION STRENGTH MARGIN ANT. MHz dBuV dB FACTOR dB dBuV/m@3m dB POL. TUNING RANGE - 88-108 MHz 89.91 32.20 0.80 12.89 45.89 2.11 H 179.82 27.20 0.90 14.82 42.92 0.58 H 96.66 32.90 0.80 9.80 43.50 4.50 H 193.40 24.00 0.90 13.31 38.21 5.29 H 107.40 34.40 0.80 8.36 43.56 4.44 H 214.80 18.10 1.20 12.35 31.65 11.85 V SAMPLE CALCULATION: FSdBuV/m = MR(dBuV) + ACFdB. TEST PROCEDURE: The procedure used was ANSI STANDARD C63.4-1992. The spectrum was scanned from 30 MHz to 1000 MHz. When an emission was found, the table was rotated to produce the maximum signal strength. The antenna was placed in both the horizontal and vertical planes and the worse case emissions were reported. The UUT was tested in 3 orthogonal planes. TEST RESULTS: THE UNIT DOES MEET THE FCC REQUIREMENTS. PERFORMED BY:___S. S. SANDERS__________________ DATE: MAY 20, 1999 FCC ID: NZTSF-140 REPORT #: F:\CUS\A\ARTCHIEF\ART196U9.RPT PAGE #: 3 APPLICANT: ARTCHIEF INDUSTRIES LTD. FCC ID: NZTSF-140 NAME OF TEST: Occupied Bandwidth RULES PART NO.: 15.239 REQUIREMENTS: Emissions from the device shall be confined within a band 200 kHz wide centered on the operating frequency. The 200 kHz band shall lie wholly wit…

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