BZBAAVTHLPRS

FCC Warning: This device may not interfere with TV reception or federal government radar, and must accept any interference received, including interference that may cause undesired operation.

" ~ "" Ci;j~l1c AA VT -PRO-C CIRCUIT DESCRIPTION Description of circuits employed for suppression of spurious emissions, limiting modulation and limiting power: In the final amplifier stage L14 ,VC1 ,VC2 ,L5 ,C58 ,C62 ,C64 ,L6 ,L7 and Antenna (usil:1g a Microphone cable) forms a band-pass filter. The band-pass filter suppresses the out of band emission. In the transmitter audio amplifier IC3 forms an operational amplifier which clips and suppresses excess audio input voltage. This limits the voltage applied to the modulator and the deviation of the transmitter. Description of circuit for determining and stabilizing frequency: Designation Type No. Diode, Transistor Q1 2SC4215Y Transistor D2 HVU306 Variable Capacitance Diode X1,X2 Crystal The above components are located in the oscillator circuit of the transmitter. The oscillator circuit is standard pierce type. The frequency stability is maintained by X1 ,X2 at crystal. To compensate temperature drift over the operating range, TH1 ,C 19 and C22 are provided, these thermistor and capacitors and a native temperature coefficient. Thus the temperature drift is minimized. Description of circuit with CTCSS CTCSS Tone frequency are generated by #15 pin of IC5 and then mixed at IC3. There are 48 kinds of CTCSS Tone frequencies which are located between 67.0Hz and 250.3Hz. These CTCSS tone frequency will be set up by SW2.

APPLICANT: AZDEN CORPORATION FCC ID: BZBAAVTH REPORT #: A\AZDEN\239CUT2\239CUT2TestReport.doc TABLE OF CONTENTS LIST TABLE OF CONTENTS LIST APPLICANT: AZDEN CORPORATION FCC ID: BZBAAVTH TEST REPORT: PAGE 1-2....COVER SHEET - GENERAL INFORMATION & TECHNICAL DESCR. PAGE 3......RF POWER OUTPUT PAGE 4......MODULATION CHARACTERISTICS PAGE 5......AUDIO FREQUENCY RESPONSE PLOT PAGE 6......MODULATION LIMITING PLOT – 300 Hz PAGE 7......MODULATION LIMITING PLOT – 3000 Hz PAGE 8......MODULATION LIMITING PLOT – 15000 Hz PAGE 9......OCCUPIED BANDWIDTH PAGE 10......OCCUPIED BANDWIDTH PLOT 25k PAGE 11......OCCUPIED BANDWIDTH PLOT 50k PAGE 12......METHOD OF MEASURING OCCUPIED BANDWIDTH PAGE 13......FIELD STRENGTH OF SPURIOUS EMISSIONS PAGE 14......METHOD OF MEASURING RADIATED SPURIOUS EMISSIONS PAGE 15......FREQUENCY STABILITY PAGE 16-20...LIST OF TEST EQUIPMENT EXHIBITS CONTAINING: EXHIBIT 1.........FCC ID LABEL SAMPLE AND SKETCH OF LOCATION EXHIBIT 2.........EXTERNAL PHOTO - FRONT VIEW EXHIBIT 3.........EXTERNAL PHOTO - REAR VIEW EXHIBIT 4.........EXTERNAL PHOTO – TOP VIEW EXHIBIT 5.........INTERNAL PHOTO – COMPONENT VIEW EXHIBIT 6.........INTERNAL PHOTO – COPPER VIEW EXHIBIT 7.........BLOCK DIAGRAM EXHIBIT 8.........SCHEMATIC EXHIBIT 9.........USER'S MANUAL EXHIBIT 10........OPERATIONAL DESCRIPTION EXHIBIT 11........TUNING PROCEDURE EXHIBIT 12........LIST OF ACTIVE DEVICES EXHIBIT 13........TEST SETUP PHOTO APPLICANT: AZDEN CORPORATION FCC ID: BZBAAVTH REPORT #: A\AZDEN\239CUT2\239CUT2TestReport.doc Page 1 of 17 GENERAL_INFORMATION_REQUIRED FOR_TYPE_ACCEPTANCE 2.1033(c)(1)(2)AZDEN CORPORATION will manufacture the FCCID: BZBAAVTH LOW POWER RADIO SERVICE TRANSCEIVER in quantity, for use under FCC RULES PART 95. AZDEN CORPORATION 1-12-17 KAMI-REJAMKU MITAKA, TOKYO, JAPAN 181 2.1033 (c) TECHNICAL_DESCRIPTION 2.1033(c)(3) Instruction book. A draft copy of the instruction manual is included as EXHIBIT 9. 2.1033(c) (4) Type of Emission: 23K5F3E 95.631 Bn = 2M + 2DK M = 6.5kHz D = 5.25kHz Bn = 2(6.5k)+ 2(5.25k)(1) = 23.5k Authorized Bandwidth 25 kHz 2.1033(c)(5) Frequency Range: 216.0125 - 216.9875 MHz 95.629 2.1033(c)(6)(7) Power Output shall not exceed 100 mWatts ERP effective 95.1013(a) radiated power. There can be no provisions for 95.649 increasing the power or varying the power. 95.1013(c) The antenna is an integral part to the unit, it cannot be removed without rendering the unit inoperative. In order to remove the antenna the case must unscrewed, then the PCB assemblies must be removed then the antenna can be removed. 2.1033(c)(8) DC Voltages and Current into Final Amplifier: FINAL AMPLIFIER ONLY Vce = 8.9 Volts DC Ice = 0.09A. Pin = 0.08 Watts APPLICANT: AZDEN CORPORATION FCC ID: BZBAAVTH REPORT #: A\AZDEN\239CUT2\239CUT2TestReport.doc Page 2 of 17 2.1033(c)(9) Tune-up procedure. The tune-up procedure is included in exhibit 11. 2.1033(c)(10) Complete Circuit Diagrams: The circuit diagram is included as exhibit 8 of this report. The block diagram is included as exhibit 7 of this report. 2.1033(c)(11) A photograph or a drawing of the equipment identifica tion label is included as exhibit No. 1. 2.1033(c)(12) Photographs(8"X10") of the equipment of sufficient clarity to reveal equipment construction and layout, including meters, labels for controls, including any view under shields - See exhibits 2-6. 2.1033(c)(13) Digital modulation is not allowed. 2.1033(c)(14) The data required by 2.1046 through 2.1057 is submitted below. APPLICANT: AZDEN CORPORATION FCC ID: BZBAAVTH REPORT #: A\AZDEN\239CUT2\239CUT2TestReport.doc Page 3 of 17 2.1046(a) RF power output. 95.1013(a) RF power is measured by measuring the radiated power at 3 meters and then replacing the transmitter with a signal generator to determine the effective radiated power. The ERP shall not exceed 100 mWatts. MEASURED POWER OUTPUT = .006 Watts ERP R.F. POWER OUTPUT TEST SET UP Agilent Spectrum Analyzer TRANSMITTER UNDER TEST WITH INTERNAL ANTENNA <-- 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 80 cm above ground on a rotatable platform. APPLICANT: AZDEN CORPORATION FCC ID: BZBAAVTH REPORT #: A\AZDEN\239CUT2\239CUT2TestReport.doc Page 4 of 17 2.1047(a)(b) Modulation characteristics: AUDIO FREQUENCY RESPONSE The audio frequency response was measured in ac- cordance with TIA/EIA Specification 603. The audio frequency response curve is shown on page 5. The audio signal was fed into a dummy microphone circuit and into the microphone connector. The input required to produce 30 percent modulation level was measured. 2.1047(b) Audio input versus modulation The audio input level needed for a particular per- percentage of modulation was measured in accor- dance with TIA/EIA Specification 603. The audio input curves versus modulation are shown in pages 6-8. Curves are provided for audio input frequen cies of 300, 3000, and 15000 Hz. APPLICANT: AZDEN CORPORATION FCC ID: BZBAAVTH REPORT #: A\AZDEN\239CUT2\239CUT2TestReport.doc Page 5 of 17 AUDIO FREQUENCY RESPONSE PLOT Azden Corporation # 9 -55 -50 -45 -40 -35 -30 100100010000100000 Frequency dBmV audio response APPLICANT: AZDEN CORPORATION FCC ID: BZBAAVTH REPORT #: A\AZDEN\239CUT2\239CUT2TestReport.doc Page 6 of 17 Modulation Limiting Azden Corporation # 9 0 2000 4000 6000 8000 10000 12000 14000 -65-55-45-35-25-15 dBmV Deviation 300 Hz Modulation limiting 300 Hz APPLICANT: AZDEN CORPORATION FCC ID: BZBAAVTH REPORT #: A\AZDEN\239CUT2\239CUT2TestReport.doc Page 7 of 17 Modulation Limiting Azden Corporation # 9 0 2000 4000 6000 8000 10000 12000 14000 16000 -65-55-45-35-25 dBmV Deviation 3000 Hz Modulation Limiting Plot 3000 Hz APPLICANT: AZDEN CORPORATION FCC ID: BZBAAVTH REPORT #: A\AZDEN\239CUT2\239CUT2TestReport.doc Page 8 of 17 Modulation Limiting Azden Corporation # 9 0 2000 4000 6000 8000 10000 -65-55-45-35-25-15 dBmV Deviation 15000 Hz Modulation Limiting Plot 15000 Hz APPLICANT…

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