CCT71599900MHz Paging Monitor TX

Transmitter 1.1 The transmitter is a narrow band Fm transmitter for 900Mhz ISM band. A crystal oscillator is modulated with a varactor diode to generate a 14 MHz reference signal. There is divider for phase locked loop. That is not used in this circuit. Fo= output Frequency = crystal frequency X 64 . Fc= Crystal frequency: Channel 1, 14.156203Mhz. Channel 2, 14.166667Mhz. 1.2 FM modulation TA-7137 is Amp with ALC ( automatic level control). Circuit and it is control modulation Vco and varactor diode. 1.3 Antenna Antenna is on PC board. Receiver 2.1Local oscillation. Receiving signal 14Mhz as reference phase locked loop . 2.2 Local frequency divider X 64 Channel 1 : ( 14.323390Mhz X 64) 916.69696Mhz. Channel 2 : ( 14.333781Mhz X 64) 917.36198Mhz. RF= Local Frequency (F1, 2) – Intermediate Frequency (IF). Channel 1 916.69696 MHz – 10.7Mhz = 905.997Mhz Channel 2 917.36198Mhz - 10.7Mhz= 906.662Mhz. 2.3 receiving type Superheterodyne receiver with Intermediate frequency control harmonic 2.4 RF amp. Amp is 2 phases and filter is 3 phases Antenna receiving signals ( PC board antenna) and go through Band Pass filter. Between phase 1 and phase 2 there is Dielectric band pass filter. 2.5 Antenna Antenna is fixed on PC board..

APPLICANT: FISHER PRICE INC. FCC ID: CCT71599 REPORT #: F\FISHER PRICE\848ZAH1\848ZAH1RPT.doc PAGE #: TABLE OF CONTENTS TABLE OF CONTENTS APPLICANT: FISHER PRICE INC. FCC ID: CCT71599 TEST REPORT CONTAINING: PAGE 1.............TEST EQUIPMENT LIST & TEST PROCEDURE PAGE 2.............TEST PROCEDURE CONTD. PAGE 3-4...........RADIATION INTERFERENCE TEST DATA PAGE 5.............OCCUPIED BANDWIDTH PAGE 6.............OCCUPEID BANDWIDTH PLOT PAGE 7.............POWERLINE CONDUCTED PAGE 8-9...........POWERLINE CONDUCTED PLOTS EXHIBIT ATTACHMENTS: EXHIBIT 1...........FCC ID LABEL SAMPLE & SKETCH OF LOCATION EXHIBIT 2...........BLOCK DIAGRAM EXHIBIT 3...........SCHEMATIC EXHIBIT 4...........OPERATIONAL DESCRIPTION EXHIBIT 5A-5L.......INSTRUCTION MANUAL EXHIBIT 6...........FRONT VIEW EXTERNAL PHOTO EXHIBIT 7...........REAR VIEW EXTERNAL PHOTO EXHIBIT 8...........COMPONENT SIDE INTERNAL PHOTOS EXHIBIT 9...........COPPER SIDE INTERNAL PHOTOS EXHIBIT 10..........TEST SETUP PHOTO – RADIATED EXHIBIT 11..........TEST SETUP PHOTO – POWERLINE CONDUCTED APPLICANT: FISHER PRICE INC. FCC ID: CCT71599 REPORT #: F\FISHER PRICE\848ZAH1\848ZAH1RPT.doc PAGE #: 1 OF 9 TEST EQUIPMENT LIST 1. Spectrum Analyzer: HP 8566B-Opt 462, S/N 3138A07786, w/ preselector HP 85685A, S/N 3221A01400, Quasi-Peak Adapter HP 8565OA, S/N 3303A01690 & Preamplifier HP 8449B-OPT H02, S/N 3008A00372 2. Biconnical Antenna: Eaton Model 94455-1, S/N 1057, 3. Biconnical Antenna: Electro-Metrics Model BIA-25, S/N 1171 4. Log-Periodic Antenna: Electro-Metrics Model EM-6950, S/N 632 5. Log-Periodic Antenna: Electro-Metrics Model LPA-30, S/N 409 6. Double-Ridged Horn Antenna: Electro-Metrics Model RGA-180, 1-18 GHz, S/N 2319 7. 18-26.3GHz Systron Donner Standard Gain Horn #DBE-520-20 8. Horn 40-60GHz: ATM Part #19-443-6R 9. Line Impedance Stabilization Network: Electro-Metrics Model EM-7820, w/NEMA Adapter S/N 2682 10. Temperature Chamber: Tenney Engineering Model TTRC, S/N 11717-7 11. Frequency Counter: HP Model 5385A, S/N 3242A07460 12. Peak Power Meter: HP Model 8900C, S/N 2131A00545, 13. Open Area Test Site #1-3meters 14. Signal Generator: HP 8640B, S/N 2308A21464 15. Signal Generator: HP 8614A, S/N 2015A07428 16. Passive Loop Antenna: EMCO Model 6512, 9KHz to 30MHz, S/N 9706-1211 17. Dipole Antenna Kit: Electro-Metrics Model TDA-30/1-4, S/N 153 18. AC Voltmeter: HP Model 400FL, S/N 2213A14499 19. Digital Multimeter: Fluke Model 8012A, S/N 4810047 20. Digital Multimeter: Fluke Model 77, S/N 43850817 21. Oscilloscope: Tektronix Model 2230, S/N 300572 TEST PROCEDURE GENERAL: This report shall NOT be reproduced except in full without the written approval of TIMCO ENGINEERING, INC. The UUT was transmit- ting a test signal during the testing. RADIATION INTERFERENCE: The test procedure used was ANSI STANDARD C63.4-1992 using a HEWLETT PACKARD spectrum analyzer with a prese- lector. 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 up to 1.0GHz and 1.0MHz with a video BW of 3.0MHz above 1.0GHz. The ambient temperature of the UUT was 91°F with a humidity of 54%. APPLICANT: FISHER PRICE INC. FCC ID: CCT71599 REPORT #: F\FISHER PRICE\848ZAH1\848ZAH1RPT.doc PAGE #: 2 OF 9 APPLICANT: FISHER PRICE INC. FCC ID: CCT71599 TEST PROCEDURES CONTINUED 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 POWER LINE CONDUCTED INTERFERENCE: The procedure used was ANSI STAN- DARD C63.4-1992 using a 50uH LISN. Both lines were observed. The bandwidth of the spectrum analyzer was 10kHz with an appro- priate sweep speed. The ambient temperature of the UUT was 74.3°F with a humidity of 69%. ANSI STANDARD C63.4-1992 10.1.7 MEASUREMENT PROCEDURES: The UUT was placed on a table 80 cm high and with dimensions of 1m by 1.5m. The UUT was placed in the center of the table (1.5m side). 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. APPLICANT: FISHER PRICE INC. FCC ID: CCT71599 REPORT #: F\FISHER PRICE\848ZAH1\848ZAH1RPT.doc PAGE #: 3 OF 9 APPLICANT: FISHER PRICE INC. FCC ID: CCT71599 NAME OF TEST: RADIATION INTERFERENCE RULES PART NUMBER: 15.249, 15.209 REQUIREMENTS: FIELD STRENGTH FIELD STRENGTH S15.209 of Fundamental: of Harmonics 30 - 88 MHz 40 dBuV/m @3M 902-928 MHZ 88 -216 MHz 43.5 2.4-2.4835 GHz 216 -960 MHz 46 94 dBuV/m @3m 54 dBuV/m @3m ABOVE 960 MHz 54dBuV/m EMISSIONS RADIATED OUTSIDE OF THE SPECIFIED FREQUENCY BANDS, EXCEPT FOR HARMONICS, SHALL BE ATTENUATED BY AT LEAST 50 dB BELOW THE LEVEL OF THE FUNDAMENTAL OR TO THE GENERAL RADIATED EMISSION LIMITS IN 15.209, WHICHEVER IS THE LESSER ATTENUATION. TEST RESULTS: This unit DOES meet the FCC requirements. TEST DATA: Emission Frequency MHz Meter Reading dBuv Ant. Polarity Coax Loss dB Correction Factor dB Field Strength dBuv/m Margin dB 906.00 65.1 V 4.07 24.83 94.00 0.00 1,812.00 17.0 V 2.80 27.43 47.23 6.77 2,718.00R 16.4 V 3.57 29.80 49.77 4.23 3,624.00R 0.7 V 4.42 32.06 37.18 16.82 4,530.00R 5.5 V 5.54 33.59 44.63 9.37 APPLICANT: FISHER PRICE INC. FCC ID: CCT71599 REPORT #: F\FISHER PRICE\848ZAH1\848ZAH1RPT.doc PAGE #: 4 OF 9 APPLICANT: FISHER PRICE INC. FCC ID: CCT71599 NA…

Text truncated - open the document above for the full version.