GAFWT-SD2Walkie Talkie

block diagrom.sch-1 - Sat Sep 20 15:41:55 2003

Columbia Telecommunications Group Inc. FCC ID: GAFWT-SD2 EXHIBIT C - EUT PHOTOGRAPHS Chassis - Front View Chassis - Bottom View

EXHIBIT A - FCC PRODUCT LABELING AND WARNING STATEMENT FCC ID Label Specifications: Text is black in color and is left justified. Labels are printed in indelible ink on permanent adhesive backing and shall be affixed at a conspicuous location on the EUT. Proposed Label Location on EUT Bottom side of EUT FCC Warning Statement The device shall bear the following FCC Warning Statement. If the EUT is too small or for such use that it is not practicable to place the statement on it, the statement could be put in the conspicuous location of the user manual or the pamphlet supplied to the user or, alternatively, shall be placed on the container in which the device is marketed. “ This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.” FCC ID: GAFWT-SD2

Chassis – Cover off View Main Board - Component View Main Board - Solder View

CIRCUIT DESCRIPTION MODEL: 1. RECEIVE SECTION Radio frequency signal received by the Antenna(ANT1),.passing through the low pass filter L1 and IFT. The RF signal then demodulated by the Demodulator circuit of transistor Q1. The demodulated audio signal is then amplifiers by audio amplifiers Q4,Q3, and Q2 and the audible sound is then produced by the speaker(SPK). 2. TRANSMITTER SECTION In the transmitter section, when the Push To Talk button (PTT) pushed, the speaker is switched to the MIC and it is connected to the input of the audio amplifier Q4,Q3 and Q2 and the output of Q2 drives the IFT which modulates the voltage of the crystal (XTAL1) controlled oscillator Q1. The crystal controlled oscillator is the Q1 and is connected to the antennal via out put filter L1. 3. MORSE CODE TRANSMISSION When push the Morse code button (SK), the pulse signal generator(TH) generates the Morse code signals and passes to the antenna through the transmitter path. 4. POWER SUPPLY Supply voltage of 9v dc is needed to power “ON” whole circuitry by a 9v battery.

B-TOY.sch-1 - Sat Sep 20 16:07:02 2003

Note: This test report is specially limited to the above client company and the product model only. It may not be duplicated without prior written consent of Bay Area Compliance Laboratory Corporation. This report must not be used by the client to claim product endorsement by NVLAP or any agency of the U.S. Government. FCC ID PER PART 15.235 EMI MEASUREMENT AND TEST REPORT For Columbia Telecommunications Group Inc. 174 Milbar Blvd., Farmingdale, New York, 11375 USA FCC ID: GAFWT-SD2 2003-09-10 This Report Concerns: Original Report Equipment Type: Walkie Talkie Test Engineer:Hang Tan Report No.:R0308143 Test Date:2003-09-09 Reviewed By:Ming Jing Prepared By:Bay Area Compliance Laboratory Corporation 230 Commercial Street Sunnyvale, CA 94085 Tel: (408) 732-9162 Fax: (408) 732-9164 Columbia Telecommunications Group Inc. FCC ID: GAFWT-SD2 Report # R0308143RptPage 2 of 9FCC ID Per 15.235 TABLE OF CONTENTS 1 - GENERAL INFORMATION.................................................................................................................................................3 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT).........................................................................................3 1.2 OBJECTIVE................................................................................................................................................................................3 1.3 RELATED SUBMITTAL(S)/GRANT(S)......................................................................................................................................3 1.4 TEST METHODOLOGY.............................................................................................................................................................3 1.5 TEST FACILITY.........................................................................................................................................................................4 1.6 TEST EQUIPMENT LIST............................................................................................................................................................4 2 - SYSTEM TEST CONFIGURATION..................................................................................................................................5 2.1 JUSTIFICATION.........................................................................................................................................................................5 2.2 BLOCK DIAGRAM.....................................................................................................................................................................5 2.3 EQUIPMENT MODIFICATIONS.................................................................................................................................................5 2.4 TEST SETUP BLOCK DIAGRAM..............................................................................................................................................5 3 - CONDUCTED EMISSIONS TEST......................................................................................................................................6 4 - FIELD STRENGTH RADIATED EMISSION.................................................................................................................7 4.1 APPLICABLE REQUIREMENTS.................................................................................................................................................7 4.2 MEASUREMENT UNCERTAINTY.............................................................................................................................................7 4.3 EUT SETUP...............................................................................................................................................................................7 4.4 SPECTRUM ANALYZER SETUP...............................................................................................................................................7 4.5 TEST PROCEDURE....................................................................................................................................................................8 4.6 CORRECTED AMPLITUDE & MARGIN CALCULATION........................................................................................................8 4.7 SUMMARY OF TEST RESULTS.................................................................................................................................................8 4.8 RADIATED EMISSIONS TEST RESULT DATA........................................................................................................................8 5 - BAND EDGE...............................................................................................................................................................................9 5.1 APPLICABLE REQUIREMENTS.................................................................................................................................................9 5.2 TEST RESULTS..........................................................................................................................................................................9 Columbia Telecommunications Group Inc. FCC ID: GAFWT-SD2 Report # R0308143RptPage 3 of 9FCC ID Per 15.235 1 - GENERAL INFORMATION 1.1 Product Description for Equipment Under Test (EUT) Applicant:Columbia Telecommunications Group Inc. Product Description:Walkie Talkie Trade Name:Columbia Model:WT-SD2 FCC ID:GAFWT-SD2 Operating Frequency:49.86MHz Dimension:2.75” L x 2.4” W x 8.5” H Applicable standard(s):15.235 *The test data gathered are from typical production samples provided by the manufacturer. 1.2 Objective This Type approval report is prepared on behalf of Columbia Telecommunications Group Inc. in accordance with Part 2, Subpart J, and Part 15, Subparts A and B of the Federal Communication Commissions rules. The objective of th…

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Columbia Telecommunications Group Inc. FCC ID: GAFWT-SD2 EXHIBIT B - RADIATED SETUP PHOTOGRAPHS Radiated Emission - Front View Radiated Emission - Rear View