AAO2101822

TELEPHONE: (352) 472-5500 (888) 472-2424 FAX: (352) 472-2030 E-MAIL: [email protected] Engineering, Inc.WEBSITE: www.timcoengr.com TIMCO ENGINEERING, INC.
849 N. W. STATE ROAD 45
P.O. BOX 370
NEWBERRY, FL 32669 October 28, 1999 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 SUBJECT: RADIOSHACK, A DIVISION OF TANDY CORP. FCC ID: AAO2101822 REFERENCE: CONFIRMATION #: EA95712 To Whom It May Concern: We submitted the application for certification for the above mentioned application on October 19, 1999. After submitting the application, it was brought to my attention that we had made an error on the output power that we put on the 731 form. This letter is a request to correct the 731 form. The output power should read .30 Watts. Regards, Sharon A. Hoffman/TIMCO ENGINEERING, INC.

TABLE OF CONTENTS LIST APPLICANT: RADIOSHACK, A DIV. TANDY CORP. FCC ID: AAO2101822 TEST REPORT: PAGE 1......COVER SHEET - GENERAL INFORMATION & TECHNICAL DESCR. PAGE 2......TECHNICAL DESCRIPTION CONTD. & RF POWER OUTPUT PAGE 3......RF POWER OUTPUT CONTD. & MODULATION CHARACTERISTICS PAGE 4......OCCUPIED BANDWIDTH PAGE 5......SPURIOUS EMISSIONS AT ANTENNA TERMINALS AND FIELD STRENGTH OF SPURIOUS EMISSIONS PAGE 6......METHOD OF MEASURING RADIATED SPURIOUS EMISSIONS PAGE 7......FREQUENCY STABILITY PAGE 8......CERTIFICATION OF TECHNICAL DATA AND LIST OF TEST EQUIPMENT EXHIBITS CONTAINING: EXHIBIT 1.........POWER OF ATTORNEY LETTER EXHIBIT 2.........FCC ID LABEL SAMPLE AND SKETCH OF LOCATION EXHIBIT 3A........EXTERNAL REAR VIEW PHOTOGRAPH EXHIBIT 3B........EXTERNAL FRONT VIEW PHOTOGRAPH EXHIBIT 3C-3D.....EXTERNAL SIDE VIEW PHOTOGRAPHS EXHIBIT 3E........EXTERNAL TOP VIEW PHOTOGRAPH EXHIBIT 3F........INTERNAL COMPONENT SIDE PHOTOGRAPH EXHIBIT 3G........INTERNAL SOLDER SIDE PHOTOGRAPH EXHIBIT 4A-4C.....THEORY OF OPERATION EXHIBIT 5A-5B.....TUNING PROCEDURE EXHIBIT 6A-6B.....LIST OF ACTIVE DEVICES EXHIBIT 7.........BLOCK DIAGRAM EXHIBIT 8.........SCHEMATIC EXHIBIT 9A-9D.....USER'S MANUAL EXHIBIT 10........AUDIO FREQUENCY RESPONSE GRAPH EXHIBIT 11A.......MODULATION LIMITING - 300 Hz EXHIBIT 11B.......MODULATION LIMITING - 1000 Hz EXHIBIT 11C.......MODULATION LIMITING - 3000 Hz EXHIBIT 12........AUDIO LOW PASS FILTER GRAPH EXHIBIT 13........OCCUPIED BANDWIDTH CW PLOT EXHIBIT 14........OCCUPIED BANDWIDTH With DEVIATION PLOT APPLICANT: RADIOSHACK, A DIV. TANDY CORP. FCC ID: AAO2101822 DATE: OCTOBER 18, 1999 REPORT #: T:\CUS\R\RADSHACK\RAD434A9\RAD434A9.RPT PAGE: TABLE OF CONTENTS GENERAL INFORMATION REQUIRED FOR TYPE ACCEPTANCE 2.983 (a,b,c) RADIOSHACK, A DIV. TANDY CORP. will manufacture the FCCID: AAO2101822 FAMILY RADIO SERVICES 14 CHANNEL TRANSCEIVER in quantity, for use under FCC RULES PART 95. 2.983 (d) TECHNICAL DESCRIPTION 2.983 (d) (1) Type of Emission: 8K8F3E 95.629 Bn=2M+2DK M = 3000 D = 2.2K Bn = 2(3.0)+2(1.4) = 8.80K Authorized Bandwidth 12.5KHz 2.983 (d) (2) Frequency Range: 1. 462.5625 8. 467.5625 95.627 2. 462.5875 9. 467.5875 3. 462.6125 10. 467.6125 4. 462.6375 11. 467.6375 5. 462.6625 12. 467.6625 6. 462.6875 13. 467.6875 7. 462.7125 14. 467.7125 MHz 2.983 (d) (3) Power Output shall not exceed 0.500Watts effective 95.637 radiated power. There can be no provisions for 95.647 increasing the power. 2.983 (d) (4) Maximum Output Power Rating: 500 milliWatts 95.637 effective radiated power. 95.645 The antenna is an intergral 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. 2.983 (d) (5) DC Voltages and Current into Final Amplifier: FINAL AMPLIFIER ONLY Vce = 4.5 Volts DC Ice = 0.31A. Pin = 1.42 Watts APPLICANT: RADIOSHACK, A DIV. TANDY CORP. FCC ID: AAO2101822 DATE: OCTOBER 18, 1999 REPORT #: T:\CUS\R\RADSHACK\RAD434A9\RAD434A9.RPT PAGE #: 1 2.983 (d) (6) Function of each electron tube or semiconductor device or other active circuit device: SEE EXHIBITS 6A-6B. 2.983(d) (7) Complete Circuit Diagrams: The circuit diagram is included as EXHIBIT 8 of this report. The block diagrams are included as EXHIBIT 7 of this report. 2.983(d) (8) Instruction book. A draft copy of the instruction manual is included as EXHIBIT 9. 2.983 (d) (9) Tune-up procedure. The tune-up procedure is included 5A-5B. (10) Description of all circuitry and devices provided for determining and stabilizing frequency is given in EXHIBIT 9. The crystal specifications are included as PAGES NA. 2.983 (d)(11) Description of any circuits or devices employed for suppression of spurious radiation, for limit- ing modulation, and for limiting power will be 4. (12) Digital modulation. This unit does not use digital modulation. 2.983(e) The data required by 2.985 through 2.997 is submit ted below. 2.985(a) RF power output. 95.637 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 0.500 Watts. MEASURED POWER OUTPUT = 500 milliWatts ERP APPLICANT: RADIOSHACK, A DIV. TANDY CORP. FCC ID: AAO2101822 DATE: OCTOBER 18, 1999 REPORT #: T:\CUS\R\RADSHACK\RAD434A9\RAD434A9.RPT PAGE #: 2 R.F. POWER OUTPUT HP TEST SET UP 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 1 meter above ground on a rotatable platform. 2.987(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 the next page. 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. See Exhibit 10. 2.987(b) 1 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 on the following pages. Curves are provided for audio input frequen- cies of 300, 1000, and 3000 Hz. See Exhibits 11A-11C. 95.635(b) Post Limiter Filter The filter must be between the modulation limiter and the modulated stage. At any frequency between 3 & 20KHz the filter must have an attenuation of 60log (f/3) greater tha the attenuation at 1KHz. See Exhibit 12. APPLICANT: RADIOSHACK, A DIV. TANDY CORP. FCC ID: AAO2101822 DATE: OCTOBER 18, 1999 REPORT #: T:\CUS\R\RADSHACK\RAD434A9\R…

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Radio Shack, A Div. of Tandy Corp. AA02101822 0 1 2 3 4 5 6 7 8 9 10 01000200030004000 Frequency rms mVolts audio response RADIOSHACK, A DIVISION OF TANDY CORP. FCC ID: AAO2101822 EXHIBIT #: 10

Modulation Limiting Radio Shack, A Div. of Tandy Corp. AA02101822 0 500 1000 1500 2000 00.0050.010.0150.020.0250.030.035 rms Volts Deviation 300 Hz RADIOSHACK, A DIVISION OF TANDY CORP. FCC ID: AAO2101822 EXHIBIT #: 11A

Modulation Limiting Radio Shack, A Div. Of Tandy Corp. AA02101822 0 500 1000 1500 2000 2500 00.0050.010.0150.020.025 rms Volts Deviation 1000 Hz RADIOSHACK, A DIVISION OF TANDY CORP. FCC ID: AAO2101822 EXHIBIT #: 11B

Modulation Limiting Radio Shack, A Div. of Tandy Corp. AA02101822 0 500 1000 1500 2000 2500 00.0020.0040.0060.008 rms Volts Deviation 3000 Hz RADIOSHACK, A DIVISION OF TANDY CORP. FCC ID: AAO2101822 EXHIBIT #: 11C