ICK-WT-268G49 MHz Walkie Talkie

LOYAL TECHNOLOGY CO., LTD. FCC ID : ICK-WT-268G JOB # : 66AU1 EXHIBIT # : 9 CIRCUIT DESCRIPTION RECEIVER CIRCUIT : The flexible 14.5cm long antenna is inductively coupled to transistor Q1 the regenerative mixer and detector. The detector audio is then Routed to audio amplifier Q3, Q4, and Q5. The output of the audio amplifier drives transformer T4 and speaker SP1. TRANSMIT CIRCUIT: Q2 is the crystal oscillator which is modulated by the output of the same audio amplifier chain of Q3, Q4, and Q5. The audio input is now from SP1. POWER AND GROUND : Energy is supplied by a 9 Volt battery. No external ground connection is provided and what ground that’s available is from the printed circuit board.

TABLE OF CONTENTS LIST APPLICANT: LOYAL TECHNOLOGY CO., LTD. FCC ID: ICK-WT-268G TEST REPORT CONTAINING: PAGE 1......TEST EQUIPMENT LIST AND TEST PROCEDURE PAGE 2......TEST PROCEDURE CONTD. PAGE 3......RADIATION INTERFERENCE TEST DATA PAGE 4......OCCUPIED BANDWIDTH TEST DATA PAGE 5......OCCUPIED BANDWIDTH PLOT EXHIBITS CONTAINING: EXHIBIT 1............BLOCK DIAGRAM EXHIBIT 2............SCHEMATIC EXHIBIT 3A-3C........INSTRUCTION MANUAL EXHIBIT 4............SAMPLE OF FCC ID LABEL EXHIBIT 5............LOCATION OF FCC ID LABEL EXHIBIT 6A...........EXTERNAL PHOTO - FRONT SIDE EXHIBIT 6B...........EXTERNAL PHOTO - BACK SIDE EXHIBIT 7A...........INTERNAL PHOTO - COMPONENT SIDE EXHIBIT 7B...........INTERNAL PHOTO - COPPER SIDE EXHIBIT 8............TEST SET UP PHOTO EXHIBIT 9............CIRCUIT DESCRIPTION APPLICANT: LOYAL TECHNOLOGY CO., LTD. FCC ID: ICK-WT-268G REPORT #: T:\CUS\L\LOYAL\66AU1\66AU1RPT.DOC PAGE: TABLE OF CONTENTS LIST APPLICANT: LOYAL TECHNOLOGY CO., LTD. FCC ID: ICK-WT-268G TEST EQUIPMENT LIST 1._X_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 Cal. 10/17/99 2._X_Biconnical Antenna: Eaton Model 94455-1, S/N 1057 3.___Biconnical Antenna: Electro-Metrics Model BIA-25, S/N 1171 4._X_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 ANS-25/2, S/N 2604 Cal. 2/9/00 10.___Temperature Chamber: Tenney Engineering Model TTRC, S/N 11717-7 11.___Frequency Counter: HP Model 5385A, S/N 3242A07460 Cal 10/6/99 12.___Peak Power Meter: HP Model 8900C, S/N 2131A00545 13._X_Open Area Test Site #1-3meters Cal. 12/22/99 14.___Signal Generator: HP 8640B, S/N 2308A21464 Cal. 9/23/99 15.___Signal Generator: HP 8614A, S/N 2015A07428 16.___Passive Loop Antenna: EMCO Model 6512, 9KHz to 30MHz, S/N 9706-1211 Cal. 6/10/00 17.___Dipole Antenna Kit: Electro-Metrics Model TDA-30/1-4, S/N 153 Cal. 11/24/99 18.___AC Voltmeter: HP Model 400FL, S/N 2213A14499 Cal. 9/21/99 19.___Digital Multimeter: Fluke Model 8012A, S/N 4810047 Cal 9/21/99 20.___Digital Multimeter: Fluke Model 77, S/N 43850817 Cal 9/21/99 21.___Oscilloscope: Tektronix Model 2230, S/N 300572 Cal 9/23/99 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 80oC with a humidity of 76%. APPLICANT: LOYAL TECHNOLOGY CO., LTD. FCC ID: ICK-WT-268G REPORT #: T:\CUS\L\LOYAL\66AU1\66AU1RPT.DOC PAGE: 1 APPLICANT: LOYAL TECHNOLOGY CO., LTD. FCC ID: ICK-WT-268G 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 80oC with a humidity of 76%. 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 continu- ous 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: LOYAL TECHNOLOGY CO., LTD. FCC ID: ICK-WT-268G REPORT #: T:\CUS\L\LOYAL\66AU1\66AU1RPT.DOC PAGE: 2 APPLICANT: LOYAL TECHNOLOGY CO., LTD. FCC ID: ICK-WT-268G NAME OF TEST: RADIATION INTERFERENCE RULES PART NO.: 15.235 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: PEAK 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. 49.86 36.50 0.25 10.99 47.74 32.26 V NO OTHER EMISSIONS NOTED 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 were reported. The UUT was tested in 3 orthogonal planes. TEST RESULTS: THE UNIT DOES MEET THE FCC REQUIREMENTS. PERFORMED BY: JOSEPH SCOGLIO DATE: JANUARY 29, 2001 APPLICANT: LOYAL TECHNOLOGY CO., LTD. FCC ID: ICK-WT-268G REPORT #: T:\CUS\L\LOYAL\66AU1\66AU1RPT.DOC PAG…

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