KN3910C-924C

TABLE OF CONTENTS APPLICANT: WOO JU COMMUNICATIONS CO., LTD. FCC ID: KN3 910C-924C TEST REPORT CONTAINING: PAGE 1.............TEST PROCEDURE PAGE 2.............TEST PROCEDURE CONTD. AND CIRCUIT DESCRIPTION PAGE 3-4...........RADIATION INTERFERENCE TEST DATA PAGE 5.............OCCUPIED BANDWIDTH PAGE 6.............POWERLINE CONDUCTED EXHIBIT ATTACHMENTS: EXHIBIT 1...........POWER OF ATTORNEY LETTER EXHIBIT 2...........FCC ID LABEL SAMPLE EXHIBIT 3...........SKETCH OF FCC ID LABEL LOCATION EXHIBIT 4...........BLOCK DIAGRAM EXHIBIT 5A..........SCHEMATIC - COLOR MODULE CIRCIT EXHIBIT 5B..........SCHEMATIC - MAIN EXHIBIT 6A-6J.......PARTS LIST EXHIBIT 7...........INSTRUCTION MANUAL EXHIBIT 8...........OCCUPIED BANDWIDTH PLOT EXHIBIT 9A-9B.......POWERLINE CONDUCTED PLOTS EXHIBIT 10..........FRONT VIEW EXTERNAL PHOTO EXHIBIT 11..........REAR VIEW EXTERNAL PHOTO EXHIBIT 12A-12F.....COMPONENT SIDE INTERNAL PHOTOS EXHIBIT 13A-13C.....COPPER SIDE INTERNAL PHOTOS APPLICANT: WOO JU COMMUNICATIONS CO., LTD. FCC ID: KN3 910C-924C REPORT #: F:\CUS\W\WOO\WOO68K9.RPT PAGE: TABLE OF CONTENTS LIST APPLICANT: WOO JU COMMUNICATIONS CO., LTD. FCC ID: KN3 910C-924C 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 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. 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 74.3oF with a humidity of 69%. 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 POWER LINE CONDUCTED INTERFERENCE: The procedure used was ANSI STAN- DARD C63.4-1992 using a 50uH LISN. Both lines were observed. The bandwidth of the spectrum analyzer was 10kHz with an appro- priate sweep speed. The ambient temperature of the UUT was 74.3oF with a humidity of 69%. REPORT #: F:\CUS\W\WOO\WOO68K9.RPT PAGE #: 1 APPLICANT: WOO JU COMMUNICATIONS CO., LTD. FCC ID: KN3 910C-924C TEST PROCEDURES CONTINUED 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. 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. CIRCUIT DESCRIPTION: The transmitter is activated when the power switch SW-1 is turned on. The 12VDC comes into the camera module to the 5.0V regulator, IC4. IC- 4 supplies regulated voltage to the all camera circuits. The image via the lens to the optical intergrated circuit IC1. In addition to the visual signal the video timing and the video carrier is also fed into IC6 from IC1 & IC11. The visual signal along with the timing pulses are fed into the video processing intergrated circuit IC6. The audio from the microphone is fed into the microphone amplifier Q1 and Q2 which is fed into the camera module and is turn into the process chip IC6. The video signal with audio is fed from the camera module to the modulator. This composite signal is then fed to the mixer stage. From the mixer stage the signal is fed to a series of RF amplifiers and then to the antenna. This unit is a low power television transmitter operating in the 2450- 2400-2483.5MHz band. ANTENNA & GROUND: This unit uses a short, antenna. The antenna is self contained 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: WOO JU COMMUNICATIONS CO., LTD. FCC ID: KN3 910C-924C REPORT NO.: F:\CUS\W\WOO\WOO68K9.RPT PAGE #: 2 APPLICANT: WOO JU COMMUNICATIONS CO., LTD. FCC ID: KN3 910C-924C 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 GENER…

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