BZBWM-PROWIRELESS MICROPHONE TRANSMITTER

APPLICANT: AZDEN CORPORATION FCCID: BZB8SAWM-PRO REPORT #: A\AZDEN\973UT3\973UT3TestReport.doc TABLE OF CONTENTS APPLICANT: AZDEN CORPORATION FCC ID: BZBWM-PRO TABLE OF CONTENTS LIST TEST REPORT CONTAINING: PAGE 1..........GENERAL INFORMATION & TECHNICAL DESCRIPTION PAGE 2..........TECHNICAL DESCRIPTION CONTINUED & RF OUTPUT PAGE 3..........MODULATION CHARACERISTICS AUDIO FREQUENCY RESPONSE GRAPH MODULATION LIMITING PLOT – 300 Hz PAGE 4..........MODULATION LIMITING PLOT – 2500 Hz MODULATION LIMITING PLOT – 15000 Hz PAGE 5..........OCCUPIED BANDWIDTH PAGE 6..........OCCUPIED BANDWIDTH PLOT PAGE 7-8........RADIATED EMISSIONS TEST DATA PAGE 9..........METHOD OF MEASURING RADIATED SPURIOUS EMISSIONS PAGE 10.........FREQUENCY STABILITY TEST DATA PAGE 11-14......EQUIPMENT LIST EXHIBITS CONTAINING: EXHIBIT 1.......LABEL SAMPLE EXHIBIT 2.......LABEL LOCATION EXHIBIT 3.......BLOCK DIAGRAM EXHIBIT 4.......SCHEMATICS EXHIBIT 5.......USER'S MANUAL EXHIBIT 6.......EXTERNAL PHOTOGRAPHS EXHIBIT 7.......INTERNAL PHOTOGRAPHS EXHIBIT 8.......ALIGNMENT PROCEDURE EXHIBIT 9.......CIRCUIT DESCRIPTION EXHIBIT 10......PARTS LIST EXHIBIT 11......TEST SET UP PHOTOGRAPH APPLICANT: AZDEN CORPORATION FCCID: BZBWM-PRO REPORT #: A\AZDEN\973UT3\973UT3TestReport.doc Page 1 of 14 GENERAL INFORMATION REQUIRED FOR TYPE ACCEPTANCE 2.1033(c)(1) AZDEN CORPORATION will manufacture the FCCID: BZBWM-PRO in quantity, for use under FCC RULES PART 74.801, LOW POWER AUXILIARY STATIONS. AZDEN CORPORATION 1-12-17 KAMI-RENJAKU MITAKA, TOKYO, 181 JAPAN 2.1033 TECHNICAL DESCRIPTION (c)(3) Instruction book. The instruction manual is in- cluded as Exhibit 5. (c)(4) Type of Emission: 30K0F3E Bn = 2M + 2DK M = 10k D = 11kHz(Peak Deviation) K = 1 Bn = 2(10k) + 2(11k)(1) = 42k ALLOWED AUTHORIZED BANDWIDTH = 200kHz. 74.861(e)(5) (c)(5) Frequency Range: Part 74: 174 – 216 MHz (c)(6) Power Range and Controls: UNIT has no controls. (c)(7) Maximum Output Power Rating: .020 Watts into 50 ohms resistive load. (c)(8) DC Voltages and Current into Final Amplifier: FINAL AMPLIFIER ONLY 9.0V BATTERY Vce = 9.0 Volts Ice = 28 mA. (c)(9) Tune-up procedure. The tune-up procedure is given in page 8. (c)(10) Complete Circuit Diagrams: The circuit diagram is included as EXHIBIT # 4. The block diagram is included as EXHIBIT #3. 2.1033(c)11) Photo or Drawing of Label and sketch of location: See EXHIBIT # 1. APPLICANT: AZDEN CORPORATION FCCID: BZBWM-PRO REPORT #: A\AZDEN\973UT3\973UT3TestReport.doc Page 2 of 14 2.1033(c)12) Photos of Equipment: See EXHIBIT #'S 6-7. (c)(13) Description of all circuitry and devices provided for determining and stabilizing frequency. Description of any circuits or devices employed for suppression of spurious radiation, for limit- ing modulation, and for limiting power. This circuitry is described on page 9. Limiting Modulation: The transmitter audio circuitry is contained in IC101, IC102 and IC103. Limiting Power: There is no provision for limiting power. (13) Digital modulation. This unit does not use digital modulation. 2.1033(c)(14) The data required by 2.1046 through 2.1057 is sub- mitted below. 2.1046 RF power output. RF power measured is: OUTPUT POWER: .020 WATTS R.F. POWER OUTPUT TEST PROCEDURE RF power is measured by the substitution method as outlined in TIA/EIA – 603. With a nominal battery voltage of 9.0V, and the transmitter properly adjusted. APPLICANT: AZDEN CORPORATION FCCID: BZBWM-PRO REPORT #: A\AZDEN\973UT3\973UT3TestReport.doc Page 3 of 14 2.1047(a)(b) Modulation characteristics: AUDIO FREQUENCY RESPONSE The audio frequency response was measured in accordance with TIA/EIA Specification 603. The audio frequency response curve is shown below. AUDIO FREQUENCY RESPONSE GRAPH audio frequency response -10 -8 -6 -4 -2 0 2 4 6 8 100100010000100000 frequency dBr Series1 MODULATION LIMITING GRAPH – 300 Hz Modulation Limiting 300 Hz 0 2000 4000 6000 8000 10000 12000 0246810 dBm deviation deviation APPLICANT: AZDEN CORPORATION FCCID: BZBWM-PRO REPORT #: A\AZDEN\973UT3\973UT3TestReport.doc Page 4 of 14 MODULATION LIMITING GRAPH – 2500 Hz Modulation Limiting 2500 Hz 0 2000 4000 6000 8000 10000 12000 02468 dBm deviation deviation MODULATION LIMITING GRAPH – 10 K Modulation Limiting 10000 Hz 0 2000 4000 6000 8000 10000 12000 024681012 dBm deviation deviation AUDIO LOW PASS FILTER The audio low pass filter is not required in this unit. APPLICANT: AZDEN CORPORATION FCCID: BZBWM-PRO REPORT #: A\AZDEN\973UT3\973UT3TestReport.doc Page 5 of 14 2.1049(c) Occupied Bandwidth: Data in the plots show that all sidebands between 50 & 100% for the authorized bandwidth are attenuated by at least 25dB. From 100 to 250% of the authorize3d band- width they are attenuated by at least 35dB and beyond 250% 43 log(Po) dB. The plot shows the transmitter modulated with 15000 Hz(the highest modulation frequen- cy), adjusted for 50% modulation plus 16 dB. The spectrum analyzer was set with the unmodulated carrier at the top of the screen. The test procedure diagram and occupied bandwidth plots follow. Wireless Microphone transmitter: Test procedure diagram OCCUPIED BANDWIDTH MEASUREMENT Transmitter Coupler 50 ohm under test Resistive Load Audio Spectrum Oscillator Analyzer REQUIREMENT: PART 74: 200kHz EMISSION BANDWIDTH. APPLICANT: AZDEN CORPORATION FCCID: BZBWM-PRO REPORT #: A\AZDEN\973UT3\973UT3TestReport.doc Page 6 of 14 OCCUPIED BANDWIDTH APPLICANT: AZDEN CORPORATION FCCID: BZBWM-PRO REPORT #: A\AZDEN\973UT3\973UT3TestReport.doc Page 7 of 14 2.1051 Spurious emissions at antenna terminals (conducted): Not Applicable no antenna connector. 2.1053(a)(b) Field strength of spurious emissions: NAME OF TEST: RADIATED SPURIOUS EMISSIONS REQUIREMENTS: Emissions must be 43 +10log(Po) dB below the mean power output of the transmitter. 43 + 10 log(0.020) = 26.00 dB TEST DATA: Emission Frequency (MHz) Polarity Antenna Corrected EUT Signal Reading (dBm) Coax Loss Sub. Ant. dB Below Carrier (dBc) 175.3 H 6.95 0 -.025 0 350.6 H -35.65 0 -1.15 42.35 525.9 H -47.85 0 -0.5…

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