JEBMX-UF1Wireless Microphone Transmitter

Dear Mr. Or Ms. On Dec. 01, 1999, one case that we uploaded, FCC ID is JEBMX-UF1, the confirmation number is EA96127, has some problem. We choose the wrong equipment code. What we chose is DCD. But the correct code is TNB. We ask your kindness help to change the equipment code for us. Please use TNB to replace DCD for us.

Test Report ------------------------------------------------------------------------------ 6/32 Report No.: M1274002, Wireless Microphone Transmitter, FCC Part 74 - Certification Test date: 11/23/99, Training Research Co., Ltd., TEL:886-2-26935155, Fax:886-2-26934440 1.3 Configuration of test setup Wooden Table 0.8 m Height Ground Plane 1.4 Location of the Measurement Site : The radiated emissions measurements required by the Rules were performed on the Three-meter, open-field test site maintained by Training Research CO., Ltd., No. 5-3, Lane 21, Yen-Chiu-Yuan Rd., Sec. 4, Taipei, Taiwan, R.O.C. Complete description and measurement data have been placed on file with the Commission. The conducted power line Emissions tests were performed in a shielded enclosure also located at the above facility. Training Research Co., Ltd. is listed by the FCC as a facility available to do measurement work for others on a contract basis. 1.5 General Test Condition : The conditions under which the EUT operates were varied to determine their effect on the equipment’s emission characteristics. The final configuration of the test system and the mode of operation used during these tests was chosen as that which produced the highest emission levels. However, only those conditions, which the EUT was considered likely to encounter in normal use were investigated. Test Report ------------------------------------------------------------------------------ 9/32 Report No.: M1274002, Wireless Microphone Transmitter, FCC Part 74 - Certification Test date: 11/23/99, Training Research Co., Ltd., TEL:886-2-26935155, Fax:886-2-26934440 2.4 Measurement Configuration 3 meters EUTAntenna Spectrum Analyzer 2.5 Measurement Result (1) Frequency: 798.850 MHz Corrected (dB) = AF(dB) + CL(dB) = – 26.26 dB/m FI a (dBμV/m) = FI r (dBμV) – Corrected (dB) = 65.47 – (-26.26) = 91.73 dBμV/m The maximum field measured is 91.73 dBμV/m FI ( Volt ) = 10 91.73/20 X 10 -6 = 0.03859 V FI ( mW ) = (0.03859 X 3 ) 2 / 49.2 = 0.272 mW (2) Frequency: 805.775 MHz Corrected (dB) = AF(dB) + CL(dB) = – 26.15 dB/m FI a (dBμV/m) = FI r (dBμV) – Corrected (dB) = 58.57 – (-26.15) = 84.72 dBμV/m The maximum field measured is 84.72 dBμV/m FI ( Volt ) = 10 84.72/20 X 10 -6 = 0.01722 V FI ( mW ) = (0.01722 X 3 ) 2 / 49.2 = 0.054 mW Test Report ------------------------------------------------------------------------------ 10/32 Report No.: M1274002, Wireless Microphone Transmitter, FCC Part 74 - Certification Test date: 11/23/99, Training Research Co., Ltd., TEL:886-2-26935155, Fax:886-2-26934440 Chapter 3 Modulation Characteristics Measurement 3.1 Rules and Specification Limits 2.987( a ): Voice modulated communication equipment 4. 987( b ): Equipment which employs modulation limiting 3.2 Test Configuration & List of Test Instruments List of test instrument : Manufacturer Device Model No. Input Impedance HPDynamic Signal AnalyzerHP35660A50 HPSignal Generator 50 MHzHP8116A 50 FarnellModulation MeterAMM2000--- HPClose-Field Probe 30M~1GHz11940A--- Mini-Circuits 30dB Attenuation Power Supply HP 35660A Analyzer Farnell AMM2000 HP 11940A ProbeEUT HP 8116A Signal Generator Test Report ------------------------------------------------------------------------------ 12/32 Report No.: M1274002, Wireless Microphone Transmitter, FCC Part 74 - Certification Test date: 11/23/99, Training Research Co., Ltd., TEL:886-2-26935155, Fax:886-2-26934440 Chart 3.1 Modulation Limiting Measuerment Negative 0 5 10 15 20 25 30 35 -50-40-30-20-1001020 Audio Input , dBm Deviation (KHz) 100Hz612Hz1.124KHz2.404KHz 3.428KHz4.452KHz5.348KHz Test Report ------------------------------------------------------------------------------ 13/32 Report No.: M1274002, Wireless Microphone Transmitter, FCC Part 74 - Certification Test date: 11/23/99, Training Research Co., Ltd., TEL:886-2-26935155, Fax:886-2-26934440 Chart 3.2 Modulation Limiting Measuerment Positive 0 5 10 15 20 25 30 -50-40-30-20-1001020 Audio Input , dBm Deviation (KHz) 100Hz612Hz1.124KHz2.404KHz 3.428KHz4.452KHz5.348KHz Test Report ------------------------------------------------------------------------------ 18/32 Report No.: M1274002, Wireless Microphone Transmitter, FCC Part 74 - Certification Test date: 11/23/99, Training Research Co., Ltd., TEL:886-2-26935155, Fax:886-2-26934440 5.4 Measurement Configuration 3 meters EUTAntenna Spectrum Analyzer Test Report ------------------------------------------------------------------------------ 19/32 Report No.: M1274002, Wireless Microphone Transmitter, FCC Part 74 - Certification Test date: 11/23/99, Training Research Co., Ltd., TEL:886-2-26935155, Fax:886-2-26934440 Pic 1 Front View of Test Configuration Pic 2 Rear View of the Test Configuration Test Report ------------------------------------------------------------------------------ 29/32 Report No.: M1274002, Wireless Microphone Transmitter, FCC Part 74 - Certification Test date: 11/23/99, Training Research Co., Ltd., TEL:886-2-26935155, Fax:886-2-26934440 6.4 Measurement Configuration of Temperature Variation Test: ChamberSpectrum