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H38JW-86PWireless Microphone

SEIKAKU TECHNICAL GROUP LIMITED
Wireless Microphone - FCC ID H38JW-86P - SEIKAKU TECHNICAL GROUP LIMITED
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Application Details

Equipment Class
TBT - Licensed Broadcast Transmitter Worn on Body
Date of Grant
Nov 18, 2001
Application Purpose
Original Equipment
Date of Application
Aug 19, 2001
Equipment Note
Wireless Microphone
Frequency Range
794.00000000 - 806.00000000
Company
SEIKAKU TECHNICAL GROUP LIMITED
Country
Samoa

Documents & Files

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Users Manual

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Block Diagram

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External Photos

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ID Label/Location Info

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Internal Photos

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Schematics

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Test Report

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

ID Label/Location Info

LABEL Format: This device complies with Part 74 of the FCC Rules FCC ID : H38JW-86P LABEL Size: 40 X 24 mm LABEL Position:

Test Report

Test Report ------------------------------------------------------------------------------ 2/46 Report No.: S0774101 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................................................................................... 6 1.5 General Test Condition................................................................................................... 6 Chapter 2Power Output Measurement 2.1 Rules and Specification Limits......................................................................................... 7 2.2 Measurement Condition and Setup................................................................................. 7 2.3 List of Measurement Instrument...................................................................................... 8 2.4 Measurement Configuration............................................................................................ 9 2.5 Measurement Result...................................................................................................... 10 Chapter 3Modulation Characteristics Measurement 3.1 Rules and Specification Limits........................................................................................ 13 3.2 Test Configuration & List of Test Instruments................................................................. 13 3.3 Frequency Response of Audio Low Pass Filter Measurement Condition & Setup........... 14 3.4 Modulation Limiting Measurement Condition & Setup.................................................... 16 Chapter 4Occupied Bandwidth Measurement & Calculation 4.1 Rules and Specification Limits........................................................................................ 19 4.2 Test Condition & Test Instruments................................................................................. 19 4.3 Measurement Procedure................................................................................................ 20 4.4 Measurement Result...................................................................................................... 20 Test Report ------------------------------------------------------------------------------ 3/46 Report No.: S0774101 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........................................................................................ 24 5.2 Measurement Condition & Setup................................................................................... 24 5.3 List of Measurement Instruments.................................................................................... 26 5.4 Measurement Configuration........................................................................................... 27 5.5 Measurement Result...................................................................................................... 29 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 ------------------------------------------------------------------------------ 4/46 Report No.: S0774101 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 Chapter 0 Application for Certification 2.1033 ( c )( 1 ):Sekaku Electron Industry Co., Ltd. – applicant and manufacturer 2.1033 ( c )( 2 ):The equipment is a transmitter, wireless microphone Model No.: JW-86P 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 ~ 13.156KHz 2.1033 ( c )( 6 ) : 2.14 mW 2.1033 ( c )( 7 ):Specification of 250 mW is met by the equipment in the applicable Part 74.861 (e)(1) 2.1033 ( c )( 8 ):Final RF amplifier stage current : 9V 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 ------------------------------------------------------------------------------ 5/46 Report No.: S0774101 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 Chapter 1 GENERAL 1.1 Introduction : The following measurement report is submitted on behalf of Sekaku Electron Industry Co., Ltd. in support of a…

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Test Report

Test Report ------------------------------------------------------------------------------ 1/16 Report No.: S0774101 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 Field Strength of Spurious Radiation Measurement 1.1Rules and Specification Limits 2.1053( a ): ANSI/ TIA/ EIA-603-1992, Paragraph 2.2.12 Measurements shall be made to detect spurious emissions that may be radiated directly from the cabinet, control circuits, Power leads, or intermediate circuit elements under normal conditions of installation and operation. 74.861( e )( 6 )(iii): Spurious and harmonics must be at least 43 + 10 log (Output Power) below the Carrier peak 2.1057: In all measurements set forth, the spectrum should be investigated from the lowest radio frequency generated in the equipment up to at least the 10 th harmonic of the carrier frequency. 1.2Measurement Condition & Setup 1. Connect the equipment as illustrated. 2. Adjust the spectrum analyzer for the following setting: a) Resolution Bandwidth 3kHz b) Video Bandwidth 10kHz c) Sweep Speed 2000Hz /second d) Detector mode = Positive Peak TRANSMITTER UNDER TEST Test antenna SPECTRUM ANALYZER Standard Test Site STANDARD TRANSMITTER LOAD Test Report ------------------------------------------------------------------------------ 2/16 Report No.: S0774101 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 3. Place the transmitter to be tested on the turntable in the standard test site. The transmitter is transmitting into a non-radiating load, which is placed on the turntable. The RF cable to this load should be of minimum length. 4. For each spurious measurement the test antenna should be adjusted to the correct length for the frequency involved. The length may be determined form a calibration ruler supplied with the equipment. Measurements shall be made form the lowest radio frequency generated in the equipment to the tenth harmonic of the carrier, except for the region close to the carrier equal to the test bandwidth (see section 1.3.4.4) 5. For each spurious frequency, raise and lower the test antenna from 1m to 4m to obtain a maximum reading on the spectrum analyzer with the test antenna at horizontal polarity. Then the turntable should be rotated 360º to determine the maximum reading. Repeat this procedure to obtain the highest possible reading. Record this maximum reading. 6. Repeat step (5) for each spurious frequency with the test antenna polarized vertically. 7. Reconnect the equipment as illustrated. 8. Keep the spectrum analyzer adjusted as in step (2) RF SIGNAL GENERATOR Substitution antenna Test antenna SPECTRUM ANALYZER Standard Test Site Test Report ------------------------------------------------------------------------------ 3/16 Report No.: S0774101 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 9. Remove the transmitter and replace it with a substitution antenna (the antenna should be half-wavelength for each frequency involved). The center of the substitution antenna should be approximately at the same location as the center of the transmitter. At the lower frequencies, where the substitution antenna is very long, this will be impossible to achieve when the antenna is polarized vertically. In such case the lower end of the antenna should be 0.3m above the ground. 10. Feed the substitution antenna at the transmitter end with a signal generator connected to the antenna by means of a non- radiating cable. With the antennas at both ends horizontally polarized and with the signal generator tuned to a particular spurious frequency, raise and lower the test antenna to obtain a maximum reading at the spectrum analyzer. Adjust the level of the signal generator output until the previously recorded maximum reading for this set of conditions is obtained. This should be done carefully repeating the adjustment of the test antenna and generator output. 11. Repeat step (10) with both antennas vertically polarized for each spurious frequency. 12. Calculate power in dBm into a reference ideal half-wave dipole antenna by reducing the readings obtained in steps (10) and (11) by the power loss in the cable between the generator and the antenna and further corrected for the gain of the substitution antenna used relative to and ideal half-wave dipole antenna. Test Report ------------------------------------------------------------------------------ 4/16 Report No.: S0774101 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 13. The levels record in step (12) are the absolute levels of radiated spurious emissions in dBm. The radiated spurious emissions in dB can be calculated by the following: Radiated spurious emissions (dB) = 10 log 10 – the levels in step (12) TX power in watts 0.001 Test Report ------------------------------------------------------------------------------ 5/16 Report No.: S0774101 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 1.3 Measurement Result: ( Test Frequency: 794.900MHz , Horizontal , 30 MHz ~ 1 GHz ) Test Conditions: Testing room : Temperature : 26 °CHumidity : 73 % RH Testing site : Temperature : 31 °CHumidity : 75 % RH Frequency Reading Amplitude Ant. Height TableCorrection Factors Corrected Power Attenuated below the mean power minimum Attenuation limit MHzdBmmdegreedBdBmdBcdBc 198.727-44.001.00136-4.65 14.44 397.452-41.141.0057-6.09 14.44 *** Note: 1. Corrected Amplitude = Reading Amplitude – Correction Factors 2. The maximum field measured is 1.45 dBm Attenuated below the mean power = Power – Corrected Power {For example: 1.45 – ( - 48.65) = 50.1 dBc} 1. Attenuation required = 43 + 10 log ( 1.396 mW ) =14.44 2. Measurement result passed by more than 20dB margin. Test Report ------------------------------------------------------------------------------ 6/16 Report No.: S0774101 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 Measurement Result: ( Test Frequency: 794.900MHz , Horizontal , 1GHz ~ 18GHz ) Radia…

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Test Report

Test Report ------------------------------------------------------------------------------ 1/6 Report No.: S0774101 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 Power Output Measurement ARules and Specification Limits 2.1046(a), ANSI/ TIA/ EIA-603-1992, Paragraph 2.2.1. 74.861 ( e )( 1 ) : The power of the measured unmodulated carrier power at output of the transmitter power amplifier ( antenna input power ) may not exceed the following: 1. 54 – 72, 76 – 88 and 174 – 216 MHz band 50 mW. 2. 470 – 608 and 614 – 806 MHz band 250 mW. BTest condition and setup 1. Measurement was made on anechoic chamber. The EUT system was placed on non- conductive turntable which is 0.8 meters height, top surface 1.0 X 1.5 meter. The EUT was placed in three direction of the space in order to obtain maximum emission. 2. Connect the equipment as illustrated. Place the transmitter to be tested on the turntable in the standard test site. 3. Raise and lower the test antenna from 1m to 4m with the transmitter facing the antenna and record the highest received signal. 4. Repeat step (3) for seven additional readings at 45 interval positions of the turn-table. TRANSMITTER UNDER TEST Transmitter antenna Test antenna SPECTRUM ANALYZER Standard Test Site Test Report ------------------------------------------------------------------------------ 2/6 Report No.: S0774101 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 5. Replace the transmitter under test with a half-wave vertically polarized antenna. The center of the antenna should be at the same location as the transmitter under test. Connect the antenna to a signal generator with a known output and record the value. 6. FI a (dBm) = FI r (dBm) – Corrected (dB) Corrected (dB) = AF(dB) + [CL(dB) – Amplitude Gain] FI a : Actual Field Intensity FI r : Reading of the Field Intensity AF : Antenna Factor CL : Cable Loss RF SIGNAL GENERATOR Half-wave vertical antenna Test antenna SPECTRUM ANALYZER Standard Test Site Test Report ------------------------------------------------------------------------------ 3/6 Report No.: S0774101 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 7. The field intensity in Watt can then be determined by the following equation: P (watt ) = FI 2 ( Volt ) X d 2 (meter) / 49.2 P : Power in Watt D : Measurement Distance ( 3 m ) C. List of test Instrument Calibration Date Instrument Name Model No. Brand Serial No. Last time Next time EMI Receiver 8546AH P 3520A0024206/29/0106/29/02 RF Filter Section 85460AH P 3448A0021706/29/0106/29/02 Bi-log AntennaCBL6141ASchaffner 4206 03/09/0103/09/02 Switch/Control Unit3488AHPN/A11/20/0011/20/01 (> 30MHz) Auto Switch BoxASB-01TRC9904-0111/20/0011/20/01 (> 30MHz) Spectrum Analyzer8564EHPUS3643300208/01/0108/01/02 Microwave Preamplifier83051AHP3232A0034708/01/0108/01/02 Horn Antenna 3115 EMCO9704 – 517808/01/0108/01/02 Anechoic Chamber (cable calibrated together) 05/20/0105/20/02 The level of confidence of 95%, the uncertainty of measurement of radiated emission is ± 4.96 dB. Test Report ------------------------------------------------------------------------------ 4/6 Report No.: S0774101 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 D. Measurement Result (1)Frequency: 794.900 MHz The maximum field measured is 1.46 dBm FI ( Volt ) = 10 98.837/20 X 10 -6 = 0.087468 V FI ( mW ) = (0.087468 X 3 ) 2 / 49.2 = 1.3995 mW Angle of Turn Table ( °) Spectrum Reading (dBm) Corrected (dB) Actually Value (dBm) E. R. P. (mW) Average (mW) 0° 1.002 45° 0.839 90° 1.236 135° 1.158 180° 1.032 225° 0.029 270° 1.482 315° 1.037 0.9769 Test Report ------------------------------------------------------------------------------ 5/6 Report No.: S0774101 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 (2)Frequency: 800.200 MHz The maximum field measured is 0.82dBm FI ( Volt ) = 10 98.197/20 X 10 -6 = 0.0812549 V FI ( mW ) = (0.0812549 X 3 ) 2 / 49.2 = 1.2077 mW Angle of Turn Table ( °) Spectrum Reading (dBm) Corrected (dB) Actually Value (dBm) E. R. P. (mW) Average (mW) 0° 0.748 45° 0.435 90° 0.519 135° 0.991 180° 0.977 225° 0.145 270° 1.026 315° 0.604 0.681 Test Report ------------------------------------------------------------------------------ 6/6 Report No.: S0774101 Training Research Co., Ltd., TEL: 886-2-26935155, Fax: 886-2-26934440 (3)Frequency: 804.900 MHz The maximum field measured is 3.32 dBm FI ( Volt ) = 10 100.697/20 X 10 -6 = 0.108355V FI ( mW ) = (0.108355 X 3 ) 2 / 49.2 = 2.14771 mW Angle of Turn Table ( °) Spectrum Reading (dBm) Corrected (dB) Actually Value (dBV/m) E. R. P. (mW) Average (mW) 0° 1.297 45° 0.713 90° 1.245 135° 2.032 180° 0.942 225° 0.643 270° 2.009 315° 1.803 1.336

Contact Information

Applicant

Henry lee(R&D)
[email protected]86-769-88977068Fax: 86-769-83371915

Technical Contact

TRAINING RESEARCH CO., LTD.JACK TSAI
[email protected]886-2-26935155

NO. 2, LANE 194, HUAN-HO STREET, · TAIPEI HSIEN, · Taiwan

Non-Technical Contact

TRAINING RESEARCH CO., LTD.JACK TSAI
[email protected]886-2-26935155

Test Firm

Training Research Co., Ltd.Jack Tsai
[email protected]886-2-26935155Fax: 886-2-26934440

Technical Specifications

#Rule PartsFrequency RangePower OutputEmissionTolerance
174.861794 MHz - 806 MHz2.14 mW69K3F3E0.0050000000 %

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