LXRRTX900MWireless Headphone Transmitter

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.

TABLE OF CONTENTS APPLICANT: DAE RYUNG INDUSTRIES INC. FCC ID: LXRRTX900M TEST REPORT CONTAINING: PAGE 1.............TEST EQUIPMENT LIST PAGE 2.............TEST PROCEDURES PAGE 3.............RADIATION INTERFERENCE TEST DATA PAGE 4.............OCCUPIED BANDWIDTH PAGE 5A-5B.........OCCUPIED BANDWIDTH PLOTS EXHIBIT ATTACHMENTS: EXHIBIT 1...........FCC ID LABEL SAMPLE EXHIBIT 2...........SKETCH OF FCC ID LABEL LOCATION EXHIBIT 3...........USER'S MANUAL EXHIBIT 4...........BLOCK DIAGRAM EXHIBIT 5A..........SCHEMATIC - MAIN EXHIBIT 5B..........SCHEMATIC - RX EXHIBIT 6...........CIRCUIT DESCRIPTION EXHIBIT 7...........TEST SET UP PHOTO EXHIBIT 8...........FRONT VIEW EXTERNAL PHOTO EXHIBIT 9...........REAR VIEW EXTERNAL PHOTO EXHIBIT 10..........SIDE VIEW EXTERNAL PHOTO EXHIBIT 11..........COMPONENT SIDE INTERNAL PHOTOS EXHIBIT 12..........COPPER SIDE INTERNAL PHOTOS APPLICANT: DAE RYUNG INDUSTRIES INC. FCC ID: LXRRTX900M REPORT #: T:\CUS\D\DAE\164AU1\164AU1.RPT PAGE: TABLE OF CONTENTS LIST APPLICANT: DAE RYUNG INDUSTRIES INC. FCC ID: LXRRTX900M TEST EQUIPMENT LIST 1._X_Spectrum Analyzer: HP 8566B-Opt 462, S/N 3138A07786, w/ preselector HP 85685A, S/N 3221A01400, Quasi-Peak Adapter HP 8565OA, S/N 3303A01690 & Preamplifier HP 8449B-OPT H02, S/N 3008A00372 Cal. 1/19/01 2._X_Biconnical Antenna: Eaton Model 94455-1, S/N 1057, Cal 3/15/00 3.___Biconnical Antenna: Electro-Metrics Model BIA-25, S/N 1171 Cal. 3/16/01 4._X_Log-Periodic Antenna: Electro-Metrics Model EM-6950, S/N 632 Cal. 3/15/00 5.___Log-Periodic Antenna: Electro-Metrics Model LPA-30, S/N 409 Cal. 3/15/00 6._X_Double-Ridged Horn Antenna: Electro-Metrics Model RGA-180, 1-18 GHz, S/N 2319 7.___18-26.3GHz Systron Donner Standard Gain Horn #DBE-520-20 8.___Horn 40-60GHz: ATM Part #19-443-6R 9.___Line Impedance Stabilization Network: Electro-Metrics Model EM-7820, w/NEMA Adapter S/N 2682 Cal. 3/16/01 10.___Temperature Chamber: Tenney Engineering Model TTRC, S/N 11717-7 Cal. 1/21/01 11.___Frequency Counter: HP Model 5385A, S/N 3242A07460 Cal 11/20/00 12.___Peak Power Meter: HP Model 8900C, S/N 2131A00545, Cal. 1/26/01 13._X_Open Area Test Site #1-3meters Cal. 12/22/99 14.___Signal Generator: HP 8640B, S/N 2308A21464 Cal. 11/21/00 15.___Signal Generator: HP 8614A, S/N 2015A07428 16.___Passive Loop Antenna: EMCO Model 6512, 9KHz to 30MHz, S/N 9706-1211 Cal. 6/10/00 17.___Dipole Antenna Kit: Electro-Metrics Model TDA-30/1-4, S/N 153 Cal. 11/24/00 18.___AC Voltmeter: HP Model 400FL, S/N 2213A14499 Cal. 2/1/01 19.___Digital Multimeter: Fluke Model 8012A, S/N 4810047 Cal 9/21/99 20.___Digital Multimeter: Fluke Model 77, S/N 43850817 Cal 11/16/00 21.___Oscilloscope: Tektronix Model 2230, S/N 300572 Cal 2/1/01 APPLICANT: DAE RYUNG INDUSTRIES INC. FCC ID: LXRRTX900M REPORT #: T:\CUS\D\DAE\164AU1\164AU1.RPT PAGE #: 1 APPLICANT: DAE RYUNG INDUSTRIES INC. FCC ID: LXRRTX900M TEST PROCEDURE GENERAL: This report shall NOT be reproduced except in full without the written approval of TIMCO ENGINEERING, INC. The UUT was transmit- ting a test signal during the testing. RADIATION INTERFERENCE: The test procedure used was ANSI STANDARD C63.4-1992 using a HEWLETT PACKARD spectrum analyzer with a prese- lector. 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 up to 1.0GHz and 1.0MHz with a video BW of 3.0MHz above 1.0GHz. The ambient temperature of the UUT was 78oF with a humidity of 58%. 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 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 (1.5m side). 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. APPLICANT: DAE RYUNG INDUSTRIES INC. FCC ID: LXRRTX900M REPORT #: T:\CUS\D\DAE\164AU1\164AU1.RPT PAGE #: 2 APPLICANT: DAE RYUNG INDUSTRIES INC. FCC ID: LXRRTX900M NAME OF TEST: RADIATION INTERFERENCE RULES PART NUMBER: 15.249, 15.209 REQUIREMENTS: FIELD STRENGTH FIELD STRENGTH S15.209 of Fundamental: of Harmonics 30 - 88 MHz 40 dBuV/m @3M 902-928 MHZ 88 -216 MHz 43.5 2.4-2.4835 GHz 216 -960 MHz 46 94 dBuV/m @3m 54 dBuV/m @3m ABOVE 960 MHz 54dBuV/m EMISSIONS RADIATED OUTSIDE OF THE SPECIFIED FREQUENCY BANDS, EXCEPT FOR HARMONICS, SHALL BE ATTENUATED BY AT LEAST 50 dB BELOW THE LEVEL OF THE FUNDAMENTAL OR TO THE GENERAL RADIATED EMISSION LIMITS IN 15.209, WHICHEVER IS THE LESSER ATTENUATION. TEST RESULTS: This unit DOES meet the FCC requirements. 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. 914.00 48.10 2.90 24.14 75.14 18.86 V 1828.10 15.90 1.00 27.31 44.22 9.78 V 2742.20 1.90 1.14 29.86 32.90 21.10 V TEST PROCEDURE: ANSI STANDARD C63.4-1992 using a Hewlett Packard Model 8566B spectrum analyzer, a Hewlett Packard Model 85685A Preselector, a Hewlett Packard Model 85650A Quasi-Peak adapter, and an appropriate antenna - see test equipment list. The band- width of spectrum analyzer was 100 kHz with an appropriate sweep speed. 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 emis- sions were reported. The spectrum w…

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