GEGGP886TWalkie Talkie

TABLE OF CONTENTS APPLICANT: GREAT POWER ELECTRONIC PRODUCTS CO. FCC ID: GEG GP886T TEST REPORT CONTAINING: PAGE 1......TEST PROCEDURE PAGE 2......TEST PROCEDURE AND CIRCUIT DESCRIPTION PAGE 3......RADIATION INTERFERENCE TEST DATA PAGE 4......OCCUPIED BANDWIDTH TEST DATA EXHIBITS CONTAINING: EXHIBIT 1............POWER OF ATTORNEY LETTER EXHIBIT 2............BLOCK DIAGRAM EXHIBIT 3............SCHEMATIC EXHIBIT 4............INSTRUCTION MANUAL EXHIBIT 5............SAMPLE OF FCC ID LABEL & LOCATION EXHIBIT 6............EXTERNAL PHOTO - FRONT SIDE EXHIBIT 7............EXTERNAL PHOTO - BACK SIDE EXHIBIT 8............INTERNAL PHOTO - COMPONENT SIDE EXHIBIT 9............INTERNAL PHOTO - COPPER SIDE EXHIBIT 10...........OCCUPIED BANDWIDTH PLOT - CW EXHIBIT 11...........OCCUPIED BANDWIDTH PLOT - LOUD VOICE EXHIBIT 12...........OCCUPIED BANDWIDTH PLOT - CODE KEY APPLICANT: GREAT POWER ELECTRONIC PRODUCTS CO. FCC ID: GEG GP886T REPORT #: F:\CUS\G\GRT\GRT271H8.RPT PAGE: TABLE OF CONTENTS LIST APPLICANT: GREAT POWER ELECTRONIC PRODUCTS CO. FCC ID: GEG GP886T TEST EQUIPMENT LIST 1. Spectrum Analyzer: Hewlett Packard 8566B - Opt 462, w/ preselector 85685A, & Quasi-Peak Adapter HP 8565OA, & HP 8449B - OPT H02 Cal. 6/26/98 2. Signal Generator, Hewlett Packard 8640B, cal. 6/26/98 3. Eaton Biconnical Antenna Model 94455-1 20-200 MHz Serial No. 0997 Cal. 5/15/98 4. Electro-Metric Dipole Kit, 20-1000 MHz, Model TDA 25 cal. 5/15/97 5. Electro-Metric Horn 1-18 GHz, Model RGA-180, Cal. 8/15/98 6. Electro-Metric Antennas Model TDS-25-1, TDS-25-2, 5/15/97 7. Electro-Metric Line Impedance Stabilization Network Model No. EM-7821, Serial No. 101; 100KHz-30MHz 50uH. 12/3/97 8. Electro-Metric Line Impedance Stabilization Network Model No. EM-7820, Serial No. 2682; 10KHz-30MHz 50uH. 12/3/97 TEST PROCEDURE GENERAL: This report shall NOT be reproduced except in full without the written approval of TIMCO ENGINEERING, INC. RADIATION INTERFERENCE: The test procedure used was ANSI STANDARD C63.4-1992 using a HEWLETT PACKARD spectrum analyzer with a prese- lector. The bandwidth of the spectrum analyzer was 100 kHz with an appropriate sweep speed. The analyzer was calibrated in dB above a microvolt at the output of the antenna. The resolution bandwidth was 100KHz and the video bandwidth was 300KHz. The ambient temperature of the UUT was 81oF with a humidity of 70%. FORMULA OF CONVERSION FACTORS: The Field Strength at 3m was estab- lished by adding the meter reading of the spectrum analyzer (which is set to read in units of dBuV) to the antenna correction factor sup- plied by the antenna manufacturer. The antenna correction factors are stated in terms of dB. The gain of the Preselector was accounted for in the Spectrum Analyzer Meter Reading. Example: Freq (MHz) METER READING + ACF = FS 33 20 dBuV + 10.36 dB = 30.36 dBuV/m @ 3m APPLICANT: GREAT POWER ELECTRONIC PRODUCTS CO. FCC ID: GEG GP886T REPORT #: F:\CUS\G\GRT\GRT271H8.RPT PAGE #: 1 TEST PROCEDURES CONTINUED APPLICANT: GREAT POWER ELECTRONIC PRODUCTS CO. FCC ID: GEG GP886T ANSI STANDARD C63.4-1992 10.1.7 MEASUREMENT PROCEDURES: The unit under test was placed on a table 80 cm high and with dimensions of 1m by 1.5m. The table used for radiated measurements is capable of continuous rotation. When an emission was found, the table was rotated to produce the maximum signal strength. At this point, the antenna was raised and lowered from 1m to 4m. The antenna was placed in both the horizontal and vertical planes. The situation was similar for the conducted measurement except that the table did not rotate. The EUT was setup as described in ANSIC63.4-1992 with the EUT 40 cm from the vertical ground wall. CIRCUIT DESCRIPTION: In the transmit mode the momentary switch SW3 provides input to the transistor Q4 to be switched to the crystal. Additionally, the SW3 puts the speaker, SP1 at the input of the the audio amplifiers Q3, Q2, & Q1. Q1 drives the Transformer T1 which modulates the voltage going to the crystal controlled oscillator Q4. The RF frequency is deter- mined by the crystal X'TAL . This output is fed into the tuned cir- cuit made up of L1/C11/C12 & then to the low pass filter made up of C13 & L2. It is then fed to the antenna. ANTENNA AND GROUND CIRCUITRY This unit makes use of an external 5" antenna. The antenna is inductively coupled. This unit is powered from a 9.0V battery. No ground connection is provided. The unit relies on the ground tract of the printed circuit board. APPLICANT: GREAT POWER ELECTRONIC PRODUCTS CO. FCC ID: GEG GP886T REPORT #: F:\CUS\G\GRT\GRT271H8.RPT PAGE #: 2 APPLICANT: GREAT POWER ELECTRONIC PRODUCTS CO. FCC ID: GEG GP886T NAME OF TEST: RADIATION INTERFERENCE RULES PART NO.: 15.227 REQUIREMENTS: CARRIER FREQUENCY WILL NOT EXCEED 80 dBuV/m AT 3M. OUT-OF-BAND EMISSIONS SHALL NOT EXCEED: 30 - 88 MHz 40.0 dBuV/M MEASURED AT 3 METERS 88 - 216 MHz 43.5 dBuV/M 216 - 960 MHz 46.0 dBuV/M ABOVE 960 MHz 54.0 dBuV/M TEST DATA: EMISSION METER READING COAX ANTENNA FIELD FREQUENCY AT 3 METERS LOSS CORRECTION STRENGTH MARGIN ANT. MHz dBuV dB FACTOR dB dBuV/m@3m dB POL. 27.15 51.20 0.20 11.75 63.15 16.85 H 54.29 13.70 0.80 9.61 24.11 15.89 V 81.44 15.80 0.80 12.13 28.73 11.27 H 108.58 13.60 0.80 8.38 22.78 20.72 V 135.73 14.10 0.80 15.32 30.22 13.28 V 162.87 5.50 0.90 17.17 23.57 19.93 V 190.02 19.30 0.90 13.67 33.87 9.63 V 217.16 17.10 1.20 12.42 30.72 15.28 V 244.31 24.50 1.20 13.21 38.91 7.09 V 271.45 15.30 1.40 14.00 30.70 15.30 V 298.60 18.50 1.40 15.61 35.51 10.49 V 325.74 10.30 1.40 14.85 26.55 19.45 V 352.89 23.00 1.40 15.63 40.03 5.97 V 380.03 21.50 1.40 16.42 39.32 6.68 V 407.18 16.20 1.60 17.17 34.97 11.03 V SAMPLE CALCULATION: FSdBuV/m = MR(dBuV) + ACFdB. TEST PROCEDURE: The procedure used was ANSI STANDARD C63.4-1992. The spectrum was scanned from 30 MHz to 1000 MHz. When an emission was found, the table was rotated to produce the maximum signal strength. The antenna was placed in both the horizontal and vertical planes and the worse case emissions we…

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