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FCC ID: BJMC7T

Test Report

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FCCID_43702

Exhibit 4 The RFI / EMI Test Report issued by the Tatung EMC Lab

ECC ID : BJMC7T ELECTROMAGNETIC EMISSIONS TEST REPORT FCC CLASS B COMPLIANCE ON TATUNG CO. COLOR MONITOR MODEL 324U / C7T REPORT PREPARED BY TATUNG CO. 22 CHUNGSHAN NORTH RD., 3RD SEC., TAJPEI, TAIWAN, R. 0. C. TEL: (02)2592—5252 REPORT NUMBER : TTEMC—98009 DATE OF TEST : Mar. 25, 1998 DATE OF REPORT : Apr. 1, 1998

FCC ID : BJMCIT TEST REPORT CERTIFICATION APPLICANT : TATUNG CO. MANUFACTURER : TATUNG CO. EUT DESCRIPTION : Color Monitor (A) MODEL NO. : 324U/C7T (B) SERIAL NO. : ——— (C) POWER SUPPLY : 120 V AC 60 Hz MEASUREMENT PROCEDURE USED : FCC RULES AND REGULATIONS PART 15 SUBPART B CLASS B JUNE 1989 AND ANSI €63.4 / 1992 The device described above was tested by TATUNG CO. to determine the maximum emission levels emanating from the device. The maximum emission levels were compared to the FCC PART 15B Class B limits both radiated and conducted emissions. The measurement results are contained in this test report and TATUNG CO. is assumed full responsibility for the accuracy and completeness of these measurements. Also, this report shows that the EUT to be technically compliant with the FCC official limits. Date of test : Mar. 25, 1998 203 . Prepared by : (Wu Wan Ling) «4/ A/sy ~ *x *5 MRA / Lo zs Test engineer _: (Chen Yow Chang) >‘ / "_{23 Approved & Authorized Signer : (Mr. Tonny Lin) fié «//

FCC ID:BJMCIT 1. GENERAL INFORMATION 1.1 Description of EUT Description Color Monitor Model Number 324U / C7T Manufacturer Tatung Co. 22 Chungshan N. Rd., 3rd, Sec., Taipei, Taiwan 10451, R.O.C. |Applicant Tatung Co. FCC ID BJMC7T Date of Test Mar.25,1998 Signal Cable Shielded.undetachable Power Cord Shielded,detachable Note : The EUT was tested under the following resolution & horizontal synchronization speed mode : 1024 X 768 mode (69KHz, 1024 X768 Noninterlaced) 1280 X 1024 mode (64KHz, 1280X 1024 Noninterlaced) 800 x 600 mode (48KHz) 640 X 480 mode (31.5KHz) 1.2 Description of Configuration 1.2.1 Host Personal Computer Mode} Number PRESARIO 4540 Serial Number A7AOBSWNNSOS5 Manufacturer COMPAQ Power Supply Type |Switching Power Cord Shielded,detachable 1.2.2 MOUSE

FCC ID:BJMC7T 1.2.2 MOUSE Model Number MUSIIN Serial Number N/A ECC ID EMJMUSJR Manufacturer COMPAQ Data Cable Shielded, undetachable 1.2.3 KEYBOARD Model Number RTIOL Serial Number 1WT39CG18503 FCC ID AQ6—MTN4Z15 Manufacturer COMPAQ Data Cable Shielded, undetachable 1.2.4 PRINTER Model Number EN3211 Serial Number 508A0086962 FCC ID BDB9F2EN321 1 Manufacturer OK IDATA Power Supply ‘Within Mother Board Power Cord Unshielded,undetachable Data Cable Shielded,detachable 1,.2.5 MODEM Model Number 1200AT Serial Number AT122290 ECC ID EF56A5_1200AT Manufacturer TEAM TECHNOLOGY, INC. Power Supply Type |Linear Data Cable Shielded,detachable Power Cord Unshielded

FCC ID:BJIMC7T 1.3 Description of Test Site Site description May 8, 1990 On file with Federal Communication Commission FCC Engineering Laboratory 7435 Oakland Mills Road Columbia, MD 21046 Name of Firm TATUNG CO. Site Location 393, SEC. 1, Chung Cheng Rd., San—Hsia County, Taipei, Taiwan R.O.C.

FCC ID: BJMCIT 2. POWER LINE CONDUCTED TEST 2.1 Test Equipments The following test equipments are used during the power line conducted tests : Equipments Type & Manufacturer Model No. Date of Calibration Spectrum Analyzer (HP) 8568B September,1997 Quasi—Peak Adapter (HP) §5650A September,1997 [L.LS.N. (EMCO) 382572 September, 1997 Printer (HP) 2227B N/A Plotter (HP) 7440A September, 1997 Rohde & Schwarz Test Receiver ESH3 September, 1997 Shielded Room (7.2 m X 5.4 m X 2.45 m) ———— N/A 2.2 Block Diagram of Test Setup METAL WALL (2M x 2M) POWER LINE FILTER TO EUT TO SUPPORT UNITS 1 LISN LISN 40CM POWER TEST LINE RECEIVER [FILTER EUT & SUPPORT UNITS WOODEN TABLE (1M x 1.5M 80CM HEIGHT SIGNAL CABLE SHIELDED ROOM

FCC ID:BJMC7T 2.3 CLASS B Conducted Powerline Emission Limit Frequency Maximum RF Line Voltage MHz uV dB u V 0.45—30 250 48 REMARKS : RF LINE VOLTAGE (dbu V)=20 log RF LINE VOLTAGE (gV) 24 EUT Configuration on Measurement The equipments in Item 1.2 are installed on RF LINE VOLTAGE measurement to meet the Commission requirement and operating in a manner which tends to maximize its emission characteristics in a normal application. 2.5 Operating Condition of EUT 2.5.1 Setup the EUT and peripheral devices as shown on 2.2. 2.5.2 Turn on the power of all equipments. 2.5.3 Set the VGA display card on 1024 X 768 mode (69KHz). 2.5.4 PC reads test program from hard disk and run it. 2.5.5 PC sends "H" character to monitor and the screen will display and fill with "H" pattern. 2.5.6 PC sends "H" character to printer, the printer will print "H" pattern on paper. 2.5.7 PC sends "H" character to modem. 2.5.8 Repeat the above procedures from 2.5.4 to 2.5.7. 2.5.9 Change the mode of VGA display card to 1280 X 1024 mode (64KHz) and repeat steps 2.5.4 to 2.5.8. 2.5.10 Change the mode of VGA display card to 800X 600 mode (48KHz) and repeat steps 2.5.4 to 2.5.8. 2.5.11 Change the mode of VGA display card on Standard VGA mode (31.5KHz) and repeat steps 2.5.4 to 2.5.8.

FCC ID:BJMC7T 2.6 Test Procedure The test is performed in a shielded room. The EUT is placed on a wooden table which is 8Ocm height at a distance of 40cm in front of an earthed metal wall of the shielded room. The EUT is connected to the power mains through a line impedance stabilization network(L.LS.N.). This provides a 50 ohm coupling impedance for the measuring equipment. Both sides of A. C. line are checked for maximum conducted interference. In order to find the maximum emission, the relative positions of equipments and all of the interface cables must be changed according to ANSI C 63.4 / 1992 on conducted measurement. The bandwidth of the Quasi—Peak Adapter (HP $5650A) is set at 10 kHz. The frequency range from 450 kHz to 30 MHz is checked.

FCC ID:BJMC7T 2.7.1 Line Conducted RF Voltage Measurement Results The frequency spectrum from 0.45 MHz to 30 MHz is investigated. All emissions not reported below are too low against the FCC Class B limit. Date of Test : Mar.25, 1998 Temperature : 24 °C EUT : Color Monitor : 324U / C7T Humidity : 60 % Working Frequency : 31.5KHz Display Pattern: 640X 480 Frequency Reading (dB 4 V) Limits One End & GRD |The Other End & GRD (MHz) (dB 4 V) (dB 4 V) (dB 4 V) 0.76 27.2 48 0.82 29.6 48 1.02 41.2 40.4 48 1.15 35.2 48 1.26 39.2 38.0 48 1.34 33.2 32.3 48 1.51 31.2 30.2 48 9.84 26.0 48 REMARKS : 1.All readings are Quasi—peak values.

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FCC ID:BJMCIT 2.7.2 Line Conducted RF Voltage Measurement Results The frequency spectrum from 0.45 MHz to 30 MHz is investigated. All emissions not reported below are too low against the FCC Class B limit. Date of Test : Mar.25 , 1998 Temperature : 24°C EUT : Color Monitor : 324U / C7T Humidity : 60% Working Frequency : 48KHz Display Pattern : 800 X 600 Frequency Reading (dB 4 V) Limits One End & GRD __|The Other End & GRD (MHz) (dB 4 V) (dB 4 V) (dB u V) 0.81 30.9 30.2 48 1.02 39.3 39.5 48 1.14 32.3 32.3 48 1.15 32.3 48 1.25 39.2 48 1.26 39.2 38.2 48 1.34 31.4 31.7 48 1.35 31.4 48 1.51 30.1 30.4 48 REMARKS : 1.All readings are Quasi—peak values.

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FCC ID:BJMC7T 2.7.3 Line Conducted RF Voltage Measurement Results The frequency spectrum from 0.45 MHz to 30 MHz is investigated. All emissions not reported below are too low against the FCC Class B limit. Date of Test : Mar. 25 ,1998 Temperature : 24°C EUT : Color Monitor : 324U / C7T Humidity : 60% Working Frequency : 64KHz Display Pattern : 1280X 1024 (Noninterlaced) Frequency Reading (dB 4 V) Limits One End & GRD |The Other End & GRD (MHz) (dB 4 V) (dB 4 V) (dB 4 V) 0.45 31.9 32.0 48 0.76 304 27.0 48 1.02 37.8 37.4 48 1.15 31.5 29.5 48 1.25 36.5 35.6 48 9.95 33.2 48 10.01 27.1 48 REMARKS: 1.ALL readings are Quasi—peak values.

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FCC ID:BJMC7T 2.7.4 Line Conducted RF Voltage Measurement Results The frequency spectrum from 0.45 MHz to 30 MHz is investigated. All emissions not reported below are too low against the FCC Class B limit. Date of Test : Mar.25 ,1998 Temperature : 24°C EUT : Color Monitor : 324U / C7T Humidity : 60% Working Frequency : 69KHz Display Pattern : 1024 X 768 (Noninterlaced) Frequency Reading (dB 4 V) Limits One End & GRD |The Other End & GRD (MHz) (dB 4 V) (dB 4 V) (dB 4 V) 0.48 30.8 31.0 48 0.54 29.1 30.2 48 1.02 37.0 36.0 48 115 30.2 48 1.25 35.2 34.9 48 9.92 31.4 48 23.71 33.0 34.0 48 REMARKS: 1.ALL readings are Quasi—peak values. 16

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FCC ID:BJMC7T 3. RADIATED EMISSION TEST 3.1 Test Equipment The following test equipments are used during the radiated emission tests : Equipments Type & Manufacturer Model No. Date of Calibration Spectrum Analyzer (HP) 8568B September,1997 RF Preselector (HP) 85685A September,1997 Quasi—Peak Adapter (HP) §5650A September, 1997 Preamplifier (HP) 8447F OPT. H64 September,1997 Printer (HP) 2227B Plotter (HP) 7440A Dipole Antenna (EMCO) 31210 September,1997 3.2 Test Setup 3.2.1 Block Diagram of Connections between EUT and Peripheral Devices MONITOR MODEM 3 PRINT & C ‘0o in o CACCCAacd _/ 0000000 h MOUSE KEYBOARD PC

FCC ID:BJMC7T 3.2.2 Open Field Test Site Setup Diagram EUT & Antenniclevation varies from 1 m to4 m Ground Plane Tex Receiver |) ¢ 3.3 Class B Radiated Limit Frequency Distance Field Strength Limits (MHz) (m) uL V/m dB 4 V/m 30 —88 3 100 40.0 88—216 3 150 43.5 216—960 3 200 46.0 960—1000 3 500 54.0 REMARKS : 1. Emission level (dB 4 V/m) =20 log Emission level (; V/m) 2. The tighter limit shall apply at the edge between two frequency bands. Distance refers to the distance in meters between the measuring instrument antenna and the closed point of any part of the device or system. 20

FCC ID:BJMCIT 3.4 EUT Configuration The configuration of EUT and its peripheral devices are the same as those used in conducted test. Please refer to 2.4. 3.5 Operating condition of EUT Same as conducted test which is listed in 2.5. 3.6 Test Procedure The EUT and its peripheral devices are placed on a turn table which is 1 meter above ground. The turn table can rotate 360 degrees to determine the position of the maximum emission level. EUT is set 3 meters away from the receiving antenna which is mounted on an antenna tower. The antenna can move up and down between 1 meter and 4 meters to find out the maximum emission level..Biconical, log and dipole antennas are used as a receiving antenna. Both horizontal and vertical polarization of the antenna are set on measurement. In order to find the maximum emission, the relative positions of equipments and all of the interface cable must be changed according to ANSI €63.4/1992 on radiated measurement. The bandwidth setting on the field strength meter (HP Spectrum Analyzer 85650A) is 120 kHz.

FCC ID:BJMC7T 3.7.1 Radiated Emission Noise Measurement Results The frequency spectrum from 30 MHz to 1000 MHz is investigated. All the emissions not reported below are too low against the FCC CLASS B limit. Date of Test : Mar.25, 1998 Temperature : 24 °C EUT : Color Monitor : 324U / C7T Humidity : 60% Working Frequency : 31.5KHz Display Pattern : 640X 480 Frequency |Antennal Cable |Meter Reading| Emission Level Limits Factor |Loss +Amp.| Horizontal Horizontal (MHz) (dB) (dB) (dB 4 V/m) (dB 4 V/m) (dB 4 V/m) 34.370 12.67 25.05 36.70 24.33 40.00 45.110 10.62 25.51 38.40 23.51 40.00 68.240 8.21 25.30 39.40 22.32 40.00 119.910 13.86 24.55 35.60 24.91 43.50 145.190 12.98 24.52 30.50 18.96 43.50 169.140 15.29 24.55 34.50 25.24 43.50 181.640 16.33 23.91 33.00 25.42 43.50 194.180 17.05 24.02 35.80 28.83 43.50 156.590 14.16 24.33 37.10 26.93 43.50 206.730 12.28 23.93 38.10 26.45 43.50 219.240 12.09 23.73 40.20 28.56 46.00 238.040 12.54 23.62 32.70 21.61 46.00 269.360 13.70 23.24 30.40 20.86 46.00 281.890 14.36 23.01 35.30 26.65 46.00 REMARKS : 1. All readings are Quasi—peak values 22

FCC ID:BJMC7T Date of Test : Mar.25, 1998 Temperature : 24 °C EUT : Color Monitor : 324U / C7T Humidity : 60% Working Frequency : 31.5KHz Display Pattern : 640X 480 Frequency Antenna Cable Meter Reading| Emission Level Limits Factor |Loss +Amp. Vertical Vertical (MHz) (dB) (dB) (dB 4 V/m) (dB 4 V/m) (dB 4 V/m) 31.390 13.49 25.29 44.50 32.70 40.00 40.740 11.21 25.58 40.90 26.53 40.00 59.390 9.97 25.40 45.00 29.56 40.00 68.820 8.11 25.28 45.70 28.53 40.00 127.010 12.96 24.52 30.40 18.84 43.50 133.160 12.79 24.65 32.80 20.94 43.50 169.143 15.29 24.55 29.10 19.84 43.50 180.550 16.18 23.91 26.30 18.57 43.50 194.187 17.05 24.02 29.80 22.83 43.50 206.720 12.28 23.93 33.80 2215 43.50 244,290 12.78 23.52 29.10 18.97 46.00 REMARKS : 1. All readings are Quasi—peak values

ECC ID:BIMC7T 3.7.2 Radiated Emission Noise Measurement Results The frequency spectrum from 30 MHz to 1000 MHz is investigated. All the emissions not reported below are too low against the FCC CLASS B limit. Date of Test : Mar.25, 1998 Temperature : 24 °C EUT : Color Monitor : 324U / C7T Humidity : 60% Working Frequency : 48KHz Display Pattern : 800 X 600 Frequency Antenna Cable |Meter Reading| Emission Level Limits Factor |Loss +Amp.| Horizontal Horizontal (MHz) (dB) (dB) (dB ; V/m) (dB 4 V/m) (dB 4 V/m) 36.800 12.06 25.25 45.40 32.20 40.00 48.770 10.37 25.41 37.20 22.16 40.00 67.740 8.31 25.31 42.90 25.90 40.00 160.530 14.32 24.57 43.30 33.06 43.50 172.890 15.77 24 42 37.40 28.75 43.50 185.230 16.82 23.92 37.40 30.30 43.50 197.600 17.17 24.01 35.20 28.36 43.50 209.950 12.23 23.85 48.00 36.39 43.50 222.290 12.04 23.80 42.20 30.44 46.00 234.640 12.40 23.65 43.70 32.45 46.00 246.990 12.88 23.51 39.60 28.97 46.00 259.330 13.35 23.49 41.90 31.76 46.00 271.680 13.78 23.19 41.90 3249 46.00 284.049 14.50 23.01 38.30 29.78 46.00 296.380 15.28 22.96 36.20 28.52 46.00 REMARKS : 1. All readings are Quasi—peak values. 24

FCC ID:BJMC7T Date of Test : Mar.25, 1998 Temperature : 24 °C EUT : Color Monitor : 324U / C7T Humidity : 60% Working Frequency : 48KHz Display Pattern : 800 x 600 Frequency Antenna Cable |Meter Reading| Emission Level Limits Factor |Loss +Amp. Vertical Vertical (MHz) (dB) (dB) (dB L V/m) (dB 4 V/m) (dB 4 V/m) 37.110 11.98 25.29 46.90 33.59 40.00 46.740 10.51 25.46 49.50 34.54 40.00 58.400 10.06 25.39 42.20 26.87 40.00 69.000 8.07 25,27 46.50 29.30 40.00 135.840 12.70 24.65 36.10 24.15 43.50 160.540 14.32 24.57 31.40 21.16 43.50 209.930 12.23 23,85 35.50 23.88 43.50 234.640 12.40 23,65 34.170 23.45 46.00 259.340 13.35 2349 35.40 25.26 46.00 284.030 14.50 23.01 41.30 32.78 46.00 308.738 15.25 22.58 38.60 31.26 46.00 333.420 14.94 22.14 35.50 28.30 46.00 REMARKS © 1. All readings are Quasi—peak values.

ECC ID:BJMCIT 3.7.3 Radiated Emission Noise Measurement Results The frequency spectrum from 30 MHz to 1000 MHz is investigated. All the emissions not reported below are too low against the FCC CLASS B limit. Date of Test : Mar.25, 1998 Temperature : 24 °C EUT : Color Monitor : 324U / C7T Humidity : 60% Working Frequency : 64KHz Display Pattern : 1280X 1024 (Noninterlaced) Frequency Antenna Cable Meter Reading| Emission Level Limits Factor (Loss +Amp.| Horizontal Horizontal (MHz) (dB) (dB) (dB 4 V/m) (dB 4 V/m) (dB 4 V/m) 38.000 11.77 25.40 4240 28.77 40,.00 49.100 10.35 25.40 42.90 27.85 40.00 51.350 10.28 25.36 41.30 26.22 40.00 54.970 10.18 25.33 44.10 28.95 40.00 68.910 8.09 25.27 44.50 27.32 40.00 119.900 13.86 24.55 35.90 25.21 43.50 135.400 12.71 24.65 40.00 28.06 43.50 162.600 14.45 24.57 41.50 31.38 43.50 189.720 17.27 23.99 43.34 36.62 43.50 216.830 12.13 23.73 45.20 33.59 46.00 243.910 12.77 23.52 45.00 34.25 46.00 325.210 14.82 22.16 45.00 37.66 46.00 REMARKS : 1. All readings are Quasi—peak values.

FCC ID:BJMC7T Date of Test : Mar.25, 1998 Temperature : 24 °C EUT : Color Monitor : 324U / C7T Humidity : 60% Working Frequency : 64KHz Display Pattern : 1280 X 1024 (Noninterlaced) Frequency Antenna Cable |Meter Reading| Emission Level Limits Factor |Loss +Amp. Vertical Vertical (MHz) (dB) (dB) (dB 4 V/m) (dB V/m) (dB 4 V/m) 32.710 13.12 25.18 42.70 30.64 40.00 43.140 10.86 25.55 39.10 2441 40.00 57.650 10.08 25.38 44.10 28.81 40.00 68.840 8.10 25.28 43.20 26.02 40.00 135.500 12.71 24.65 37.10 25.76 43.50 162.960 14.47 24.57 32.80 22.10 43.50 216.830 12.13 23.73 34.40 22.179 46.00 298.120 15.34 22.93 40.80 33.21 46.00 REMARKS : 1. All readings are Quasi—peak values

FCC ID:BJMC7T 3.7.4 Radiated Emission Noise Measurement Results The frequency spectrum from 30 MHz to 1000 MHz is investigated. All the emissions not reported below are too low against the FCC CLASS B limit. Date of Test : Mar.25, 1998 Temperature : 24 °C EUT : Color Monitor : 324U / C7T Humidity : 60% Working Frequency : 69KHz Display Pattern : 1024 X 768 (Noninterlaced) Frequency Antenna Cable |Meter Reading| Emission Level Limits Factor |Loss +Amp.| Horizontal Horizontal (MHz) (dB) (dB) (dB 4 V/m) (dB 4 V/m) (dB 4 V/m) 38.490 11.65 25.45 39.40 25.60 40.00 48.420 10.39 25.42 40.20 25.18 40.00 67.700 8.32 25.31 45.40 28.40 40.00 142.286 12.70 24.58 38.00 26.12 43.50 166.000 14.70 24.54 41.40 31.56 43.50 213410 12.18 23.176 42.10 30.52 43.50 237.140 12.50 23.63 34.80 23.67 46.00 260.860 13.40 23.45 35.40 25.35 46.00 REMARKS : 1. All readings are Quasi—peak values.

FCC ID:BJMC7T Date of Test : Mar.25, 1998 Temperature : 24 °C EUT : Color Monitor : 324U / C7T Humidity : 60% Working Frequency : 69KHz Display Pattern : 1024X 768 (Noninterlaced) Frequency Antenna Cable Meter Reading| Emission Level Limits Factor |Loss +Amp. Vertical Vertical (MHz) (dB) (dB) (dB L V/m) (dB 4 V/m) (dB 4 V/m) 35.960 12.27 25.15 46.50 33.62 40.00 48.060 10.42 2543 43.00 27.99 40.00 57.610 10.08 25.38 47.00 31.71 40.00 75.050 7.10 24.89 45.80 28.01 40.00 154.130 14.12 24.36 30.20 19.97 43.50 166.000 14.70 24,54 35.80 25.96 43.50 213.430 12.18 23.76 35.10 24.12 43.50 237.140 12.50 23.63 30.20 19.07 46.00 260.800 13.40 23.45 36.50 26.45 46.00 308.290 15.26 22.60 43.10 35.16 46.00 332.000 14.91 22.14 34.00 26.77 46.00 355.720 15.36 21.95 35.30 28.71 46.00 REMARKS : 1. All readings are Quasi—peak values

Exhibit 5 The photographs of EUT O\ Tamnme NR —


Document Created: 2001-06-20 20:38:24
Document Modified: 2001-06-20 20:38:24
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