CINSM-216Wireless Microphone

TABLE OF CONTENTS LIST APPLICANT: CHIAYO ELECTRONICS CO., LTD. FCC ID: CINSM-216 TEST REPORT: PAGE 1......COVER SHEET - GENERAL INFORMATION & TECHNICAL DESCR. PAGE 2......TECHNICAL DESCRIPTION CONTINUED PAGE 3......RF POWER OUTPUT PAGE 4......MODULATION CHARACTERISTICS PAGE 5......OCCUPIED BANDWIDTH PAGE 6......FIELD STRENGTH OF SPURIOUS EMISSIONS PAGE 7......METHOD OF MEASURING RADIATED SPURIOUS EMISSIONS PAGE 8......FREQUENCY STABILITY PAGE 9......CERTIFICATION OF TECHNICAL DATA PAGE 10......LIST OF TEST EQUIPMENT EXHIBITS: EXHIBIT 1.........POWER OF ATTORNEY LETTER EXHIBIT 2.........FCC ID LABEL SAMPLE AND SKETCH OF LOCATION EXHIBIT 3A........EXTERNAL FRONT VIEW PHOTOGRAPH EXHIBIT 3B........EXTERNAL REAR VIEW PHOTOGRAPH EXHIBIT 3C........EXTERNAL TOP VIEW PHOTOGRAPH EXHIBIT 3D........INTERNAL COMPONENT SIDE PHOTOGRAPH EXHIBIT 3E........INTERNAL SOLDER SIDE PHOTOGRAPH EXHIBIT 4.........BLOCK DIAGRAM EXHIBIT 5A-5G.....PARTS LIST EXHIBIT 6.........SCHEMATIC EXHIBIT 7.........USER'S MANUAL EXHIBIT 8.........TUNING PROCEDURE EXHIBIT 9.........AUDIO FREQUENCY RESPONSE GRAPH EXHIBIT 10A.......MODULATION LIMITING PLOT - 300 Hz EXHIBIT 10B.......MODULATION LIMITING PLOT - 1000 Hz EXHIBIT 10C.......MODULATION LIMITING PLOT - 3000 Hz EXHIBIT 10D.......MODULATION LIMITING PLOT - 15000 Hz EXHIBIT 11........OCCUPIED BANDWIDTH PLOT - CW EXHIBIT 12........OCCUPIED BANDWIDTH PLOT - 2.5 kHz EXHIBIT 13........OCCUPIED BANDWIDTH PLOT - 25 kHz FCC ID: CINSM-216 DATE: DECEMBER 16, 1999 REPORT #: T:\CUS\C\CHIAYO\CHI485T9\CHI485T9.RPT PAGE: TABLE OF CONTENTS GENERAL_INFORMATION_REQUIRED FOR_TYPE_ACCEPTANCE 2.983 (a,b,c) CHIAYO ELECTRONICS CO., LTD. will manufacture the CINSM-216 in quantity, for use under FCC RULES PART 74.801, LOW POWER AUXILIARY STATIONS. 2.983 (d) TECHNICAL DESCRIPTION (1) Type of Emission: 160KF3E Bn=2M+2DK M = 1000 D = 72.0KHz (Peak Deviation) K=1 Bn = 2(1K) + 2(72.0K)(1) = 2K +144.0K = 146.0KHz M = 10,000 D = 70KHz K=1 Bn = 2(10K) + 2(70K) = 20 +140 = 160KHz 74.861(e)(5) ALLOWED AUTHORIZED BANDWIDTH = 200KHz. (2) Frequency Range: Part 74: 161.625-161.775 & 174- 216MHz TEST FREQ = 174.10MHz. (3) Power Range and Controls: UNIT has no power controls. (4) Maximum Output Power Rating: 2.0 MilliWatts ERP. (5) DC Voltages and Current into Final Amplifier: FINAL AMPLIFIER ONLY 9.0V BATTERY Vce = 8.9 Volts Ice = 1.6mA. (6) Function of each electron tube or semiconductor device or other active circuit device: SEE EXHIBIT #: 5A-5G. 2.983(d) (7) Complete Circuit Diagrams: The circuit diagram is included as EXHIBIT 6. The block diagram is included as EXHIBIT 4. APPLICANT: CHIAYO ELECTRONICS CO., LTD. FCC ID: CINSM-216 DATE: DECEMBER 16, 1999 REPORT #: T:\CUS\C\CHIAYO\CHI485T9\CHI485T9.RPT PAGE: 1 2.983(d) (8) Instruction book. The instruction manual is in- cluded as EXHIBIT #: 7. (9) Tune-up procedure. The tune-up procedure is given in EXHIBIT #: 8. (10) Description of all circuitry and devices provided for determining and stabilizing frequency. The transmitter frequency is controlled by a crystal, the crystal specifications are not applicable. (11) Description of any circuits or devices employed for suppression of spurious radiation, for limit- ing modulation, and for limiting power. There are no devices or circuitry to limit the power, since this is a low power device. The interstage cou- pling between TR1, TR2, TR3, TR4, and TR6 as well as the low pass filter made up of L2, VC1, C26, L3, VC2, C28, L4, L6, VC3, & C29 suppress the harmonics. Limiting Modulation: The transmitter audio circuitry is contained in IC2. The modulation limiting is also provided by IC1B. Limiting Power: There is no provision for limiting power. (12) Digital modulation. This unit does not use digital modulation. 2.983(e) The data required by 2.985 through 2.997 is submitted below. APPLICANT: CHIAYO ELECTRONICS CO., LTD. FCC ID: CINSM-216 DATE: DECEMBER 16, 1999 REPORT #: T:\CUS\C\CHIAYO\CHI485T9\CHI485T9.RPT PAGE: 2 2.985(a) RF power output. ERP was measured by the method described later in this report. The input power to the final stage was measured with a 9.0V supply connected in place of the 1.5V battery. INPUT POWER: FOR 9.0 V OPERATION (8.9V)(0.0016A) = 14.3milliWatts OUTPUT POWER: FOR 9.0 V OPERATION 4.0 mWATTS ERP R.F. POWER OUTPUT /-------\ /-----------------\ | | | | TRANSMITTER | | | |HP | UNDER TEST WITH | \--| |SPECTRUM | INTERNAL ANTENNA| | | |ANALYZER \-----------------/ | | | | | \-------/ |?- 3.0 meters---?| /-------------\ | SIGNAL | DIPOLE | Tuned, Calibrated | GENERATOR | ANTENNA | Antenna which may | |----------/ be raised from 1 \-------------/ to 4 meters above ground and changed in polarization Equipment placed 1 meter above ground on a rotatable platform. The center of the Dipole antenna at the center of the platform and the output of the signal generator adjusted to produce the same meter reading as measured for the fundamental in the radiated emissions test. APPLICANT: CHIAYO ELECTRONICS CO., LTD. FCC ID: CINSM-216 DATE: DECEMBER 16, 1999 REPORT #: T:\CUS\C\CHIAYO\CHI485T9\CHI485T9.RPT PAGE: 3 2.987(a)(b) Modulation characteristics: AUDIO FREQUENCY RESPONSE The audio frequency response was measured in accordance with TIA/EIA Specification 603 S2.2.6.2.1. with the following exceptions; Constant Deviation Test /---------------\ /----------\ /----------\ | Dummy | | Audio | | RMS | /-| Microphone |--| Generator| /-| VOLTMETER| | | | \----------/ | \----------/ | \---------------/ | |----------------------------------/ | /------------\ /------------\ /---------\ | | | | | | | | Test | | | Transmitter|---/ \----| NEAR FIELD|---| Receiver| \-| under test | | PROBE | | | \------------/ \------------/ \---------/ 1. The test receiver audio bandwidth was <50Hz to >20,000Hz. 2. Apply a 1000Hz tone and adjust the audio generator to produce 10% of the rated system deviation. 3. Measure frequency response over the frequency range from 100Hz to 20,000Hz. The audio frequency response curve is shown in EXHIBIT # …

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Chiayo Electronics Co., LTD. CINSM-216 3 3.5 4 4.5 5 5.5 6 6.5 7 100100010000100000 Frequency rms mVolts audio response CHIAYO ELECTRONICS CO., LTD. FCC ID: CINSM-216 EXHIBIT # 9

Modulation Limiting Chiayo Electronics Co., LTD. CINSM-216 0 10000 20000 30000 40000 50000 60000 00.050.10.150.20.250.3 rms Volts Deviation 300 Hz CHIAYO ELECTRONICS CO., LTD. FCC ID: CINSM-216 EXHIBIT # 10A

Modulation Limiting Chiayo Electronics Co., LTD. CINSM-216 0 10000 20000 30000 40000 50000 00.050.10.150.20.25 rms Volts Deviation 1000 Hz CHIAYO ELECTRONICS CO., LTD. FCC ID: CINSM-216 EXHIBIT # 10B

Modulation Limiting Chiayo Electronics Co., LTD. CINSM-216 0 10000 20000 30000 40000 50000 60000 00.050.10.150.20.25 rms Volts Deviation 3000 Hz CHIAYO ELECTRONICS CO., LTD. FCC ID: CINSM-216 EXHIBIT # 10C

Modulation Limiting Chiayo Electronics Co., LTD. CINSM-216 0 10000 20000 30000 40000 50000 00.020.040.060.080.10.12 rms Volts Deviation 15000 Hz CHIAYO ELECTRONICS CO., LTD. FCC ID: CINSM-216 EXHIBIT # 10D