test report

FCC ID: K66VXA-120

Test Report

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FCCID_75925

$TABLE OF CONTENTS LIST APPLICANT: YAESU MUSEN CO., LTD. FCC ID: K66VXA-120 TEST REPORT: PAGE 1......COVER SHEET - GENERAL INFORMATION & TECHNICAL DESCR. PAGE 2......TECHNICAL DESCRIP. CONTINUED. PAGE 3......RF POWER OUTPUT AND MODULATION CHARACTERISTICS PAGE 4......OCCUPIED BANDWIDTH PAGE 5......METHOD OF MEASURING SPURIOUS EMISSIONS AND SPURIOUS EMISSIONS AT ANTENNA TERMINALS PAGE 6......RADIATED SPURIOUS EMISSIONS PAGE 7......METHOD OF MEASURING RADIATED SPURIOUS EMISSIONS PAGE 8......FREQUENCY STABILITY PAGE 9......CERTIFICATION OF TECHNICAL DATA AND LIST OF TEST EQUIPMENT EXHIBIT CONTAINING: EXHIBIT 1..........POWER OF ATTORNEY LETTER EXHIBIT 2..........FCC ID LABEL SAMPLE AND SKETCH OF LOCATION EXHIBIT 3A.........FRONT VIEW EXTERNAL PHOTO EXHIBIT 3B.........REAR VIEW EXTERNAL PHOTO EXHIBIT 3C.........SIDE VIEW EXTERNAL PHOTO EXHIBIT 3D.........TOP VIEW EXTERNAL PHOTO EXHIBIT 3E.........REAR VIEW W/O BATTERY COVER PHOTO EXHIBIT 3F.........INTERAL COMPONENT SIDE PHOTO EXHIBIT 3G.........INTERNAL SOLDER SIDE PHOTO EXHIBIT 4..........BLOCK DIAGRAM EXHIBIT 5..........SCHEMATIC - MAIN UNIT EXHIBIT 6..........SCHEMATIC - VR EXHIBIT 7..........SCHEMATIC - SW UNIT EXHIBIT 8A-B.......PART LIST EXHIBIT 9..........USER'S MANUAL EXHIBIT 10A-E......CICRCUIT DESCRIPTION EXHIBIT 11A-C......ALIGNMENT PROCEDURE EXHIBIT 12.........AUDIO FREQUENCY RESPONSE PLOT EXHIBIT 13A........MODULATION LIMITING PLOT - 300 Hz EXHIBIT 13B........MODULATION LIMITING PLOT - 1000 Hz EXHIBIT 13C........MODULATION LIMITING PLOT - 3000 Hz EXHIBIT 14.........OCCUPIED BANDWIDTH CW PLOT EXHIBIT 15.........OCCUPIED BANDWIDTH PLOT APPLICANT: YAESU MUSEN CO., LTD. FCC ID: K66VXA-120 DATE: DECEMBER 6, 1999 REPORT #: T:\CUS\Y\YAE\YAE471A9\YAE471A9.RPT TABLE OF CONTENTS$

$GENERAL_INFORMATION_REQUIRED FOR_TYPE_ACCEPTANCE 2.983 (a,b,c) YAESU MUSEN CO., LTD. will sell their FCC ID: K66VXA-120 in quantity, for use under FCC RULES PART 87, AERONAUTICAL GROUND STATION. This UUT has an antenna connector. 2.983 (d) TECHNICAL_DESCRIPTION (2) Type of Emission: 3K20A3E ALLOWED AUTHORIZED BANDWIDTH = 25KHz. Frequency Range: Part 87: 118-137MHz, TEST FREQ = 127.000MHz. (3) Power Range and Controls:The output of this UNIT is NOT adjustable. (4) Maximum Output Power Rating: 1.0 Watt average power into 50 ohms resistive load. (5) DC Voltages and Current into Final Amplifier: FINAL AMPLIFIER ONLY 7.2VDC Vce = 7.20Volts Ice = 0.90A. 2.983(d) (6) Function of each electron tube or semiconductor device or other active circuit device: See Exhibit 8A-8B. 2.983(d) (7) Complete Circuit Diagrams: The circuit diagram is included as Exhibit #: 5-7. The block diagram is also included as Exhibit #: 4. (8) Instruction book. The instruction manual is included as Exhibit # 9. (9) Tune-up procedure. The tune-up procedure is given as Exhibit # 11A-11C 2.983(d)(10) Description of all circuitry and devices provided for determining and stabilizing frequency. The frequency Stability of the K66VXA-120 is described in Exhibit # 10A-10E. APPLICANT: YAESU MUSEN CO., LTD. FCC ID: K66VXA-120 DATE: DECEMBER 6, 1999 REPORT #: T:\CUS\Y\YAE\YAE471A9\YAE471A9.RPT PAGE #: 1$

$2.983(d) (11) Description of any circuits or devices employed for suppression of spurious radiation, for limit- ing modulation, and for limiting power. The control circuits are described in Exhibit # 10A-10E. 2.983(d) (11) Description of any circuits or devices employed for suppression of spurious radiation, for limit- ing modulation, and for limiting power. Limiting Modulation: The transmitter audio circuitry is contained in the audio processing board and is controlled by that assembly dependent upon which combination of modulation. 2.983(d) Limiting Power: There is no provision for limiting power, the design limits the power to 10Watts. There is NO provision for reducing the power. (12) Digital modulation. This unit does not use digital modulation. 2.983(e) The data required by 2.985 through 2.997 is sub- mitted below. APPLICANT: YAESU MUSEN CO., LTD. FCC ID: K66VXA-120 DATE: DECEMBER 6, 1999 REPORT #: T:\CUS\Y\YAE\YAE471A9\YAE471A9.RPT PAGE #: 2$

$2.985(a) RF_power_output. RF power is measured by connecting a 50 ohm, resistive watt meter to the RF output connector. With a nominal voltage of 7.2VDC and the trans mitter properly adjusted the RF output measures: INPUT POWER: FOR 7.2V OPERATION (7.2)(0.9) = 6.48Watts OUTPUT POWER: FOR 7.2V OPERATION 1.0WATTS RF. POWER OUTPUT /-------------\ /---------\ /----------\ | | | | | | | Transmitter |-------------------| 50 ohm |------| RF | | under test | |Resistive| | VOLTMETER| \-------------/ | Load | | | | \---------/ \----------/ | | /---------\ | Power | | Supply | \---------/ 2.987(a)(b) Modulation_characteristics: AUDIO_FREQUENCY_RESPONSE The audio frequency response was measured in accordance with TIA/EIA Specification 603 Paragraph 2.2.6. 87.141 AUDIO_LOW_PASS_FILTER The audio low pass filter is not required in this unit. 2.987(b) Audio_input_versus_modulation See Exhibit # 13A-13C APPLICANT: YAESU MUSEN CO., LTD. FCC ID: K66VXA-120 DATE: DECEMBER 6, 1999 REPORT #: T:\CUS\Y\YAE\YAE471A9\YAE471A9.RPT PAGE #: 3$

$2.989(c) Occupied_bandwidth: Data in the plots shows that frequencies removed from the assigned frequency by more than 50%(12.5KHz) up to and including 100% percent of the authorized bandwidth the attenuation must be at least 25dB. When the fre- quency is removed fromt he assigned frequency by more that 100% up to and including 250% of the authorized bandwidth the attenuation must be at least 35dB. When the frequency is removed from the assigned frequency by more than 250% of the authorized bandwidth the attenua- tion must be at least 43 + log pY dB. The plots show the transmitter modulated with 2500 Hz(the highest modulation frequency), adjusted for 50% modulation plus 16dB. The spectrum analyzer was set with the unmodulated carrier at the top of the screen. The test procedure diagram and occupied bandwidth plots follow. Microphone transmitter. Test procedure diagram OCCUPIED BANDWIDTH MEASUREMENT /------------\ Coupler /------------\ | | /----\ | | | Transmitter|------------|____|------|__ 50 ohm | | under test | \----/ | Resistive| \------------/ | | Load | | | \------------/ | | /------------\ /-----------\ | | | | | Audio | | Spectrum | | Oscillator | | Analyzer | | | \-----------/ \------------/ APPLICANT: YAESU MUSEN CO., LTD. FCC ID: K66VXA-120 DATE: DECEMBER 6, 1999 REPORT #: T:\CUS\Y\YAE\YAE471A9\YAE471A9.RPT PAGE #: 4$

$2.991 Spurious_emissions_at_antenna_terminals(conducted): Data on the following page shows the level of conducted spurious responses. The carrier was modulated 90% using a 2500Hz tone. The spectrum was scanned from 30 to at least the 10th harmonic of the fundamental. Method of Measuring Conducted Spurious Emissions /---------\ |HP | |Spectrum | |Analyzer | |8566B | \---------/ /------------\ /-----------------\ /-----------\ | | | | | | | | |TRANSMITTER |------| 50 OHM RESISTIVE|----| ATTENUATOR|-----/ | UNDER TEST | | ATTENUATOR | | | | | | | | PAD | \------------/ \-----------------/ \-----------/ NAME OF TEST: SPURIOUS EMISSIONS AT ANTENNA TERMINALS REQUIREMENTS: Emissions must be 43 +10log(Po) dB below the mean power output of the transmitter. 43 + 10 log(35) = 45.5dB EMISSION dB BELOW FREQUENCY CARRIER ___MHz___ _________ 118.00 00.00 236.00 -62.40 354.00 -59.70 472.00 -84.80 590.00 -87.10 708.00 -98.60 826.00 -99.30 944.00 -102.60 1062.00 -102.70 1180.00 -105.70 METHOD OF MEASUREMENT: The procedure used was TIA/EIA 603. The spec- trum was scanned from 30 to at least the tenth harmonic of the funda- mental using a HP model 8566B spectrum analyzer. The measurements were made using the shielded room located at TIMCO ENGINEERING INC. 849 N.W. STATE ROAD 45, NEWBERRY, FLORIDA 32669. APPLICANT: YAESU MUSEN CO., LTD. FCC ID: K66VXA-120 DATE: DECEMBER 6, 1999 REPORT #: T:\CUS\Y\YAE\YAE471A9\YAE471A9.RPT PAGE #: 5$

$2.993(a)(b) Field_strength_of_spurious_emissions: The tabulated Data shows the results of the ra- diated field strength emissions test. The spectrum was scanned from 30 to at least the 10th harmonic of the fundamental. This test was conducted per TIA/EIA 603. NAME OF TEST: RADIATED SPURIOUS EMISSIONS REQUIREMENTS: Emissions must be 43 +10log(Po) dB below the mean power output of the transmitter. 43 + 10 log(10.0) = 43 dB EMISSION RELATIVE FREQUENCY ATTENUATION ___MHz___ ____db_____ 118.03 0.0 236.06 -64.71 346.00 62.05 472.10 -64.62 590.10 -69.16 708.10 -67.31 826.20 -68.57 944.20 -71.73 1180.30 -78.42 METHOD OF MEASUREMENT: The procedure used was Tested in accordance with TIA/EIA 603 paragraph 2.2.12. The spectrum was scanned from 30.000 to at least the tenth harmonic of the fundamental using a HP model 8566B spectrum analyzer, an Eaton model 94455-1 Biconical Anten- na, a ElectroMetrics antennas models TDA, TDS-25-1, TDS-25-2. Measure- ments were made at the open field test site of TIMCO ENGINEERING INC. located at 6051 N.W. 19th Lane, Gainesville, Florida 32605. APPLICANT: YAESU MUSEN CO., LTD. FCC ID: K66VXA-120 DATE: DECEMBER 6, 1999 REPORT #: T:\CUS\Y\YAE\YAE471A9\YAE471A9.RPT PAGE #: 6$

$Method of Measuring Radiated Spurious Emissions HP Spectrum Analyzer /-------\ /-----------\ /-----------------\ | | | | | | | | | | |TRANSMITTER|----| 50 OHM RESISTIVE| \--| | | UNDER TEST| | LOAD | | | | \-----------/ \-----------------/ | | | | | | \-------/ | | | | |-- 3.0 meters----| | /----------\ Tuned, Calibrated | | Antenna which may | POWER | be raised from 4 | SUPPLY | to 20' above \----------/ ground and changed in polarization Equipment placed 4' above ground on a rotatable platform. APPLICANT: YAESU MUSEN CO., LTD. FCC ID: K66VXA-120 DATE: DECEMBER 6, 1999 REPORT #: T:\CUS\Y\YAE\YAE471A9\YAE471A9.RPT PAGE #: 7$

$2.995(a)(b)(d) Frequency_stability: 87.133 Temperature and voltage tests were performed to verify that the frequency remains within the .0020%,(20 ppm)(87.133) specification limit. The test was conducted as follows: The transmitter was placed in the temperature chamber at 25 degrees C and al- lowed to stabilize for one hour. The transmitter was keyed ON for one minute during which four frequency readings were recorded at 15 second intervals. The worse case number was taken for temperature plotting. The assigned channel fre- quency was considered to be the reference frequency. The temperature was then reduced to -30 degrees C after which the transmitter was again allowed to stabilize for one hour. The transmitter was keyed ON for one minute, and again frequency readings were noted at 15 second intervals. The worst case number was recorded for temperature plotting. This procedure was repeated in 10 degree increments up to + 50 degrees C. MEASUREMENT DATA: Assigned Frequency (Ref. Frequency): 118.02505 MHz TEMPERATURE_C FREQUENCY_MHz PPM REFERENCE 118.025 050 00.00 -30 118.024 670 -00.32 -20 118.025 230 +00.15 -10 118.025 520 +00.40 0 118.025 580 +00.45 +10 118.025 450 +00.34 +20 118.025 240 +00.16 +30 118.024 900 -00.13 +40 118.024 630 -00.36 +50 118.024 450 -00.51 25c -15% Supply Voltage 6.12 VDC 118.025 050 + 0.00 25c +15% Supply Voltage 8.28 VDC 118.025 050 + 0.00 +Battery End-point - 7.2 VDC 118.025 350 + 0.25 RESULTS OF MEASUREMENTS: The maximum frequency variation over the temperature range was +00.45 to -0.51 ppm. The maximum frequency variation over the voltage range was +0.15 ppm. APPLICANT: YAESU MUSEN CO., LTD. FCC ID: K66VXA-120 DATE: DECEMBER 6, 1999 REPORT #: T:\CUS\Y\YAE\YAE471A9\YAE471A9.RPT PAGE #: 8$

$2.983(f) Photo_or_Drawing_of_Label: See 2. 2.983(g) Photos_of_Equipment: See 3A-3G. 2.997 Frequency Spectrum Investigated The Spectrum investigated from 0.400 to the 10th harmonic of the fundamental. 2.999 Measurement_Procedures_for_Type_Acceptance: Measurement techniques have been in accordance with EIA specifications and the FCC requirements. 2.909 Certification_of_Technical_Data_by_Engineers We, the undersigned, certify that the enclosed measurements and enclosed data are true and correct. S.S. Sanders Engineer TEST EQUIPMENT LIST 1. Spectrum Analyzer: Hewlett Packard 8566B - Opt 462, w/ preselector 85685A, & Quasi-Peak Adapter HP 8565OA, & HP 8449B - OPT H02 Cal. 10/17/99 2. Signal Generator, Hewlett Packard 8640B, cal. 9/23/99 3. Signal Generator, HP 8614A Serial No.2015A07428 cal. 5/27/99 4. EMCO Model No. 6512 Passive Loop 9KHz to 30MHz 5. Eaton Biconnical Antenna Model 94455-1 20-200 MHz Serial No. 0997 Cal. 9/30/99 6. Electro-Metric Log-Periodic Model No. EM-6950 Ser#632 9/18/99 7. Electro-Metric Dipole Kit, 20-1000 MHz, Model TDA-30 10/31/98 8. Electro-Metric Horn 1-18 GHz, Model RGA-180, Cal. 4/27/99 9. Systron Donner Horn 18-26.3GHz Model DBE-520-20 7/14/99 10. Systron Donner Horn 26.5-40.2GHz Model DBD-520-20 7/14/99 11. ATM Horn 40-60GHz Part #19-443-6R 9/15/99 12. Electro-Metric Antennas Model TDA-30/1-4,Cal. 10/15/98 13. Electro-Metric Line Impedance Stabilization Network Model No. FCC-25/2, Serial No. 2512; 450KHz-100MHz 50uH. Cal.11/18/99 14. Electro-Metric Line Impedance Stabilization Network Model No. EM-7820, Serial No. 2682; 10KHz-30MHz 50uH. Cal. 11/19/98 15. Special low loss cable was used above 1 GHz 16. Tenney Temperature Chamber 17. AC Voltmeter, HP 400FL, Serial No 2213A14499. Cal. 9/21/99 18. Digital Multimeter, Fluke 8010A/12A, Serial No. 4810047. Cal 9/21/99 19. Digital Multimeter, Fluke 77, Serial No. 43850817. Cal 9/21/99 20. Oscilloscope, Tektronix 2230, Serial No. 300572. Cal 9/23/99 21. Frequency Counter, HP 5385A, Serial No. 3242A07460. Cal 10/6/99 REPORT #: T:\CUS\Y\YAE\YAE471A9\YAE471A9.RPT PAGE #: 9$

Document Created: 2001-05-08 12:38:31
Document Modified: 2001-05-08 12:38:31