AAO01901210

TABLE OF CONTENTS LIST APPLICANT: RADIOSHACK, A DIVISION OF TANDY CORP. FCC ID: AAO01901210 TEST REPORT: PAGE 1......COVER SHEET - GENERAL INFORMATION & TECHNICAL DESCR. PAGE 2......TECHNICAL DESCRIPTION CONTINUED AND RF POWER OUTPUT PAGE 3......MODULATION CHARACTERISTICS AND OCCUPIED BANDWIDTH PAGE 4......SPURIOUS EMISSIONS AT ANTENNA TERMINALS PAGE 5......FIELD STRENGTH OF SPURIOUS EMISSIONS PAGE 6......METHOD OF MEASURING RADIATED SPURIOUS EMISSIONS PAGE 7......FREQUENCY STABILITY PAGE 8-9....TRANSIENT FREQUENCY STABILITY PAGE 10......CERTIFICATION OF TECHNICAL DATA PAGE 11......LIST OF TEST EQUIPMENT EXHIBITS CONTAINING: EXHIBIT 1.........POWER OF ATTORNEY LETTER EXHIBIT 2.........FCC ID LABEL SAMPLE EXHIBIT 3.........SKETCH OF LOCATION EXHIBIT 4A........EXTERNAL FRONT VIEW PHOTOGRAPH EXHIBIT 4B........EXTERNAL REAR VIEW PHOTOGRAPH EXHIBIT 4C........INTERNAL COMPONENT SIDE PHOTOGRAPH EXHIBIT 4D........INTERNAL SOLDER SIDE PHOTOGRAPH EXHIBIT 5.........BLOCK DIAGRAM EXHIBIT 6A-6E.....PARTS LIST EXHIBIT 7.........SCHEMATIC EXHIBIT 8A-8I.....USER'S MANUAL EXHIBIT 9A-9C.....THEORY OF OPERATION EXHIBIT 10A-10B...TUNING PROCEDURE EXHIBIT 11A-11E...CRYTAL SPECIFICATION EXHIBIT 12........AUDIO FREQUENCY RESPONSE GRAPH EXHIBIT 13........AUDIO INPUT VS DEVIATION GRAPH EXHIBIT 14........AUDIO LOW PASS FILTER GRAPH EXHIBIT 15........OCCUPIED BANDWIDTH CW PLOT EXHIBIT 16........OCCUPIED BANDWIDTH EXHIBIT 17A-17B...TRANSIENT FREQUENCY RESPONSE PLOTS APPLICANT: RADIOSHACK, A DIVISION OF TANDY CORP. FCC ID: AAO01901210 REPORT #: F:\CUS\R\RADSHACK\RAD200H9.RPT PAGE: TABLE OF CONTENTS GENERAL_INFORMATION_REQUIRED FOR_TYPE_ACCEPTANCE 2.983 (a,b,c) RADIOSHACK, A DIVISION OF TANDY CORP. will sell the MODEL NO. AAO01901210 VHF transmitter in quantity, for use under FCC RULES PART 22 & 90. 2.983 (d) TECHNICAL_DESCRIPTION (1) Type of Emission: 16K0F3E For 25KHz 9K2F3E For 12.5KHz For 25KHz Bn = 2M + 2DK M = 3000 D = 1.6KHz (Peak Deviation) K = 1 Bn = 2(3.0K) + 2(1.6K)(1) = 6.0K + 3.2K = 9.2K ALLOWED AUTHORIZED BANDWIDTH = 20.00KHz. For 12.5KHz Bn = 2M + 2DK M = 3000 D = 1.6KHz (Peak Deviation) K = 1 Bn = 2(3.0K) + 2(1.6K)(1) = 6.0K + 3.2K = 9.2K ALLOWED AUTHORIZED BANDWIDTH = 11.25KHz. 90.209(b)(5) (2) Frequency Range: 148-174 MHz (3) Power Range and Controls:There are NO user Power controls. (4) Maximum Output Power Rating: 5.0 & 0.85 Watts , into a 50 ohm resistive load. (5) DC Voltages and Current into Final Amplifier: POWER INPUT FINAL AMPLIFIER ONLY Vce = 13.20 Volts Ice = 1.26 A. Pin = 16.6 Watts (6) Function of each electron tube or semiconductor device or other active circuit device: SEE EXHIBIT # 8A-8I APPLICANT: RADIOSHACK, A DIVISION OF TANDY CORP. FCC ID: AAO01901210 REPORT #: F:\CUS\R\RADSHACK\RAD200H9.RPT PAGE: 1 2.983(d) (7) Complete Circuit Diagrams: The circuit diagram is included as EXHIBIT #7. The block diagram is included as EXHIBIT #5. (8) Instruction book. The instruction manual is in cluded as EXHIBIT #8. (9) Tune-up procedure. The tune-up procedure is given in EXHIBIT #10. (10) Description of all circuitry and devices provided for determining and stabilizing frequency is included in the circuit description in the instruction manual. 2.983 (11) Description of any circuits or devices employed for suppression of spurious radiation, for limit- ing modulation, and for limiting power. In addition to the interstage filtering the multi- section low pass filter made up of L12, L11, C40, C47, C95, C46, C94, C45, & C26. Limiting Modulaton: The transmitter audio limiting circuitry is con- tained in the loop filter IC01. Limiting Power: There is no provision for limiting power. (12) Digital modulation. This unit does NOT use digi- tal modulation. 2.983(e) The data required by 2.985 through 2.997 is sub- mitted below. 2.985(a) RF_power_output. RF power is measured by connecting a 50 ohm, re- sistive wattmeter to the RF output connector. With a nominal battery voltage of 13.6V, and the trans mitter properly adjusted the RF output measures: POWER INPUT POWER: (13.2V)(1.26A) = 16.6 Watts OUTPUT POWER: 5.0 Watts Efficiency: 30% /-----------\ /---------\ |Transmitter|---------------------|50 ohm | |under test | |Resistive| \-----------/ |Wattmeter| | \---------/ /-----------\ |Power | |Supply | \-----------/ FCC ID: AAO01901210 REPORT #: F:\CUS\R\RADSHACK\RAD200H9.RPT PAGE: 2 2.987(a) Voice Modulation_characteristics: (a) AUDIO_FREQUENCY_RESPONSE See the EXHIBIT #12. 2.987(a) AUDIO_LOW_PASS_FILTER The audio low pass filter is included and the plot is shown as EXHIBIT #14. Rules 90.210(b,d, & e) for mobile stations with a low pass filter. 2.987(b) Audio_input_versus_modulation A plot of the audio input versus deviation is shown in in EXHIBIT #13. 2.989(c) Occupied_bandwidth: 90.210(b,) Data in the plots shows that on any frequency removed from the assigned frequency by more than 50%, but not more than 100%: At least 25dB. On any frequency removed from the assigned frequency by more than 100%, but not more than 250%: At least 35dB. On any frequency removed from the assigned frequency by more than 250%, of the authorized bandwidth: At least 43+log(P)dB. 90.210( d) 12.5KHz channel bandwidth equipment. For transmitters designed to operate with a 12.5KHz channel bandwidth, any emission must be attenuated below the power (P) of the highest emission con- tained within the authorized bandwidth as follows; (1) On any frequen- cy from the center of the authorized bandwidth f0 to 5.625kHz removed from fP0: Zero dB. (2) On any frequency removed from the center of the authorized bandwidth by a displacement frequency(fd-2.88kHz)dB. (3) On any frequency removed from the center of the authorized bandwidth by a displacement frequency(fd in kHz Log(P) or 70dB, whichever is the lesser attenuation. Radiotelephone transmitter with modulation limiter. Test procedure: TIA/EIA-603 para 2.2.11 , with the exception that various tones were used. Test procedure diagram OCCUPIED BANDWIDTH MEASUREMENT Coupler /-----------\ /---\ /---…

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2.983(d) (7) Complete Circuit Diagrams: The circuit diagram is included as EXHIBIT #7. The block diagram is included as EXHIBIT #5. (8) Instruction book. The instruction manual is in cluded as EXHIBIT #8. (9) Tune-up procedure. The tune-up procedure is given in EXHIBIT #10. (10) Description of all circuitry and devices provided for determining and stabilizing frequency is included in the circuit description in the instruction manual. 2.983 (11) Description of any circuits or devices employed for suppression of spurious radiation, for limit- ing modulation, and for limiting power. In addition to the interstage filtering the multi- section low pass filter made up of L12, L11, C40, C47, C95, C46, C94, C45, & C26. Limiting Modulaton: The transmitter audio limiting circuitry is con- tained in the loop filter IC01. Limiting Power: There is no provision for limiting power. (12) Digital modulation. This unit does NOT use digi- tal modulation. 2.983(e) The data required by 2.985 through 2.997 is sub- mitted below. 2.985(a) RF power output. RF power is measured by connecting a 50 ohm, re- sistive wattmeter to the RF output connector. With a nominal battery voltage of 13.6V, and the trans mitter properly adjusted the RF output measures: HIGH POWER INPUT POWER: (13.2V)(1.26A) = 16.6 Watts OUTPUT POWER: 5.0 Watts Efficiency: 30% LOW POWER INPUT POWER: (13.2V)(0.36) = 4.75 Watts OUTPUT POWER: 0.90 Watts Efficiency: 19% /-----------\ /---------\ |Transmitter|---------------------|50 ohm | |under test | |Resistive| \-----------/ |Wattmeter| | \---------/ /-----------\ |Power | |Supply | \-----------/ FCC ID: AAO01901210 REPORT #: T:\CUS\R\RADSHACK\RAD200H9.RPT PAGE: 2 2.991 Spurious_emissions_at_antenna_terminals(conducted): Data on the following page shows the level of con- ducted spurious responses. The carrier was modu- lated 100% using a 2500Hz tone. The spectrum was scanned from 0.4 to at least the 10th harmonic of the fundamental. The measurements were made in accordance with standard TIA/EIA-603. Method of Measuring Conducted Spurious Emissions /--------\ |HP | |Spectrum| |Analyzer| |8566B | \--------/ /----\ /-----------\ /-----------------\ /---------\ | L | |TRANSMITTER| | 50 OHM RESISTIVE| | | | O | | UNDER TEST|------| LOAD |-----| |-----| A | \-----------/ \-----------------/ \---------/ \-D--/ ATTENUATOR 2.991 Continued Spurious_Emissions_at_the_Antenna_Terminals: REQUIREMENTS: Emissions must be 43 +10log(Po) dB below the mean power output of the transmitter. For 25KHz 43 + 10log(5.0) = 43+ 7.0 = 50.0dB For 12.5KHz 50 + 10log(Po) = 50 + 7.0 = 57.0 EMISSION dB BELOW FREQUENCY CARRIER ___MHz___ _________ HIGH POWER LOW POWER 154.60 00.0 0.00 309.20 -62.3 -61.5 463.80 -72.5 -66.4 618.40 -63.4 -60.6 773.00 -80.6 -72.2 927.60 -64.6 -66.3 1082.20 -63.0 -64.1 1236.80 -80.1 -78.9 1391.40 -75.6 -74.6 1546.00 -76.4 -77.3 METHOD OF MEASUREMENT: The procedure used was TIA/EIA-603 STANDARD without any exceptions. An audio generator was connected to the UUT through a dummy microphone circuit and the output of the transmitter connected to a standard load and from the standard load through a pre- selector filter of the spectrum analyzer. The spectrum was scanned from 400KHz to at least the tenth harmonic of the fundamental using a HP model 8566B spectrum analyzer. The measurements were made using the shielded room located at TIMCO ENGINEERING INC. 25355 WEST NEWBERRY ROAD, NEWBERRY FLORIDA 32669. FCC ID: AAO01901210 REPORT #: T:\CUS\R\RADSHACK\RAD200H9.RPT PAGE: 4