HYJRH601TTRANSMITTER OF WIRELESS MICROPHONE

LABEL Format: This device complies with Part 74 of the FCC Rules FCC ID:HYJRH601T LABEL Size: 41 X 30 mm LABEL Position of microphone transmitter:

RH601T DESCRIPTION AUDIO Audio from the microphone is coupled trough C36.C37 & R46 applied to the audio amplifier stage(1/2 IC3) . Output from pin 7 of IC1 applied to IC2 of compand. Output from pin 9 of IC2 is through 53 & R44 applied to IC1 of pre amp. Output from pin 1 of IC1 is through R36 & C62 & SVR1 applied to OSC&VCO stage VCO The stage consist of varcap D8 & OSC Q8. Q8 is a colpitts oscillator .The frequency ranges from 197.750 to 214.750 MHZ and the frequency is control by PLL circuit (IC5.IC7.SW2.SW3). The frequency modulation was control by the audio signal applied to the D9. PRE AMP The VCO output is coupled through C27.26.28 to the base of Q7. L6 & C11.C10 is tuned to 207MHZ. The output of Q3 through R26 applied to Q6 FINAL AMP The output of Q8 is coupled through L11 to bias of Q9&Q10. L4 & L5. C6.C5 is tuned to 207 MHZ. Low pass filter is consist of L3.L2 .C3.C2 to decrease spurious of RF carries. The RF signal is output from Q5 through low pass filter applied to the antenna( microphone).

Test Report ------------------------------------------------------------------------------ 2/47 Report No.: RA274214 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 Contents Chapter 0Application for Certification...................................................... 4 Chapter 1General 1.1 Introduction................................................................................................................. 5 1.2 Description of Support Equipment............................................................................. 5 1.3 Configuration of System Under Test.......................................................................... 6 1.4 Location of the Measurement Site.............................................................................. 7 1.5 General Test Condition............................................................................................... 7 1.6 Conducted Emission Test........................................................................................... 8 1.7 Conducted Emission Test Result............................................................................... 10 Chapter 2Power Output Measurement 2.1 Rules and Specification Limits.................................................................................. 13 2.2 Measurement Condition and Setup............................................................................ 13 2.3 List of Measurement Instrument................................................................................ 14 2.4 Measurement Configuration...................................................................................... 15 2.5 Measurement Result................................................................................................... 16 Chapter 3Modulation Characteristics Measurement 3.1 Rules and Specification Limits.................................................................................. 19 3.2 Test Configuration & List of Test Instruments.......................................................... 19 3.3 Frequency Response of Audio Low Pass Filter Measurement Condition & Setup... 20 3.4 Modulation Limiting Measurement Condition & Setup............................................ 22 Chapter 4Occupied Bandwidth Measurement & Calculation 4.1 Rules and Specification Limits.................................................................................. 25 4.2 Test Condition & Test Instruments............................................................................ 25 4.3 Measurement Procedure............................................................................................. 26 4.4 Measurement Result................................................................................................... 26 Test Report ------------------------------------------------------------------------------ 3/47 Report No.: RA274214 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 Chapter 5Field Strength of Spurious Radiation Measurement 5.1 Rules and Specification Limits.................................................................................. 30 5.2 Measurement Condition & Setup............................................................................... 30 5.3 List of Measurement Instruments.............................................................................. 32 5.4 Measurement Configuration...................................................................................... 33 5.5 Measurement Result................................................................................................... 35 Chapter 6Frequency Stability Tolerance Measurement 6.1 Rules and Specification limits................................................................................... 41 6.2 Measurement Condition & Setup with Temperature Variation................................. 41 6.3 List of Measurement Instruments with Temperature Variation................................. 41 6.4 Measurement Configuration with Temperature Variation......................................... 42 6.5 Measurement Result with Temperature Variation..................................................... 43 6.6 Measurement Condition & Setup with Voltage Variation......................................... 45 6.7 List of Measurement Instruments with Voltage Variation........................................ 45 6.8 Measurement Configuration with Voltage Variation................................................ 45 6.9 Measurement Result with Voltage Variation............................................................. 46 Test Report ------------------------------------------------------------------------------ 4/47 Report No.: RA274214 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 Chapter 0 Application for Certification 74.861 ( e )( 2 ) : Transmitters may be either crystal controlled or frequency synthesized. crystal controlled frequency synthesized 2.1033 ( c )( 1 ):Reor Electronics Co., Ltd. ; No. 857, Chung-Cheng Road , Chung-Ho 235 , Taipei Hsien, Taiwan– applicant and manufacturer. 2.1033 ( c )( 2 ):The equipment is a transmitter, wireless microphone Model No.: RH-601 2.1033 ( c )( 3 ):Quantity production is planned. See Exhibit C 2.1033 ( c )( 4 ):Type of emission – F3E- FM Modulation 2.1033 ( c )( 5 ):100Hz ~ 15KHz 2.1033 ( c )( 6 ):18.632 mW 2.1033 ( c )( 7 ):Specification of 250 mW is met by the equipment in the applicable Part 74.861 (e)(1)(ii) 2.1033 ( c )( 8 ):Final RF amplifier stage current : 10 mA 2.1033 ( c )( 9 ):Description follows 2.1033 ( c )( 10 ):Complete circuit diagrams are included. No modification was made 2.1033 ( c )( 11 ):See Exhibit A. Instruction sheet to user included 2.1033 ( c )( 12 ):See Exhibit F. 2.1033 ( c )( 13 ):N/A 2.1033 ( c )( 14 ):Description follows. 2.1033 ( c )( 15 ) : N/A 2.1033 ( c )( 16 ) : N/A 2.1033 ( c )( 17 ) : N/A Test Report --------------------------------------------------------------------------…

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