OJ7988FRS0100

%DQG 3DVV )LOWHU %DQG 3DVV )LOWHU ,) 'HPRG /RZ 3DVV )LOWHU 'HHP +LJK 3DVV )LOWHU 0LF $PS 3UHHP /LPLWHU 3RVW/LPLWHU )LOWHU /RZ 3DVV )LOWHU %DWWHU\ /RZ 'HWHFW 0&8 3// %XIIHU $PS 'ULYHU 3RZHU $PS %XIIHU $PS /1$  0+] 0L[HU  0+] ,) $PS 5HIHUHQFH  0+] )56%ORFN'LDJUDP 0+]

Circuit Description (A)Main board - MCU and audio Audio Transmit Path Audio signal picked up by condenser microphone M1 is amplified with pre-emphasis by U1A. U1B, U1D and D6 form a amplitude limiter. It then passes through a post-limiter low-pass- filter for bandwidth limiting. R50 sets the modulation depth of the FM modulation. The processed audio is then fed to the VCO for FM modulation. Power supply of the transmit path is controlled by Q4. Audio Receive path Demodulated audio signal is fed to the low-pass-filter (U2A). It is then de-emphasized by U2B. U2C forms a high-pass filter to eliminated low-frequency noise. U3 is the audio power amplifier whose gain is controlled by the selection of resistors connected on U8. There are totally 8 receive audio levels. Power supplies of the receive path are controlled by Q6 and Q8. MCU U4 is a 8-bit micro-controller providing all necessary control signals for the audio circuits and the RF circuits. Clock frequency is 3.58MHz. Power Management U11 is low-drop-out voltage regulator providing a 2.8V for the audio and RF circuits. U7 is voltage detector of 3.2V. When battery voltage drops below 3.2V, U7 will provide a battery- low signal for the MCU. U10 is a reset circuit for the MCU. Minimum operating voltage is 3.0V. (B) RF board RF VCO and Synthesizer Q2 is a voltage controllable oscillator. Its frequency is controlled by the reverse-bias on the diode D6. D7 switch the frequency band between the Tx and Rx band. Q3 is a buffer amplifer. U1 is a programmable synthesizer which accepts control data from the MCU. XT1 (20.95MHz) provides the reference frequency for calculating the transmit and receive channel frequencies. The buffered 20.95MHz from U1 is also used for the 2 nd local oscillator for down-conversion. Transmitter When transmitting (i.e. PTT being pushed), the RF signal pass through D1 and further amplified by Q5. It is then fed to the driver Q7 and power amplifier Q1. C42, L7 and C43 form a low-pass matching circuit to reduce harmonic contents of the amplified RF signal. Then, it passes through D2 and is fed to the antenna. Receiver Receiving RF signal picked up by the antenna is amplified by the low-noise amplifier Q4. It is then fed to the SAW filter F2 for out-of-band signal rejection. Q6 is a biploar mixer. RF signal from the SAW filter and the LO signal from D1 are both fed to the base of Q6. The down- converted first IF signal at 21.4MHz is then fed to the crystal filter Y1 for un-wanted signal filtering. Filtered signal is then amplified by the IF amplifier Q8. Then, the amplified IF signal is fed to the IF-demodulator U3. The first IF signal is further down-converted to 450KHz by the 20.95MHz buffered reference from the VCO board. F1 is the 450KHz 2 nd IF filter to provide out-of-band signal rejection. Pin 9 of U3 provides the demodulated audio signal to the receive audio circuit.

Modulation Frequency Response 0.00 0.50 1.00 1.50 2.00 2.50 200300400500600700800900 10001250150017502000225025002750300031253250350040005000 Modulation Frequency (Hz) Frquency Deviation (kHz) Modulation Frequency Response 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 200300400500600700800900 10001250150017502000225025002750300031253250350040005000 Modulation Frequency (Hz) Modulation index (%)

Modulation Limiting Characteristic 0.00 0.50 1.00 1.50 2.00 2.50 475767778797107117127137 Modulation Input (dBSPL) Frequency Deviation (kHz) 500 1000 2500 3125Hz

• The test results reported in this report shall refer only to the sample actually tested and shall not refer or be deemed a refer to bulk from which such a sample may be said to have been obtained. • This report shall not be reproduced except in full without prior authorization from Intertek Testing Services Hong Kong Limited • For Terms And Conditions of the services, it can be provided upon request. Intertek Testing Services Hong Kong Ltd. 2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong. Tel: (852) 2173 8888 Fax: (852) 2745 8306 Victory Concept Industries Ltd. Application For Certification (FCC ID: OJ7988FRS0100) December 28, 1999 WO# 9912959 WN/at December 28, 1999 INTERTEK TESTING SERVICES FCC ID: OJ7988FRS0100 i SUMMARY OF CONTENTS LIST OF EXHIBITS EXHIBIT 1:General Description EXHIBIT 2:System Test Configuration EXHIBIT 3:RF Power Output EXHIBIT 4:Modulation Characteristics EXHIBIT 5:Occupied Bandwidth EXHIBIT 6:Emission Spurious EXHIBIT 7:Frequency Stability EXHIBIT 8:Technical Specifications EXHIBIT 9:Product Labelling EXHIBIT 10:Photographs EXHIBIT 11:Instruction Manual INTERTEK TESTING SERVICES FCC ID: OJ7988FRS0100 ii MEASUREMENT/TECHNICAL REPORT Application: Victory Concept Industries Ltd. Trade Name/Model No : Victory VC 988 GPX FRS 100 - E1 Date: December 28, 1999 This report concerns (check one:)Original Grant X Class II Change Equipment Type: Family Radio Service, FRS Deferred grant requested per 47 CFR 0.457(d)(1)(ii)? Yes No X If yes, defer until: date Company Name agrees to notify the Commission by: date of the intended date of announcement of the product so that the grant can be issued on that date. Report prepared by:Wilbur Ng Intertek Testing Services. 2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong. Phone: 852-2173-8502 Fax:852-2745-8306 INTERTEK TESTING SERVICES FCC ID: OJ7988FRS0100 iii Table of Contents 1.0 General Description................................................................................................................. 2 1.1 Product Description .............................................................................................................2 1.2 Ralated Submittal(s) Grants................................................................................................ 3 1.3 Test Methodology ...............................................................................................................3 1.4 Test Facility ........................................................................................................................ 3 2.0 System Test Configuration...................................................................................................... 5 2.1 Justification ......................................................................................................................... 5 2.2 EUT Exercising Software ................................................................................................... 6 2.3 Special Accessories.............................................................................................................6 2.4 Equipment Modification ..................................................................................................... 6 3.0 RF Output Power (Section 95.639(d)...................................................................................... 8 4.0 Modulation Characteristics (Section 95.637(a))................................................................... 12 4.1 Modulation Frequiency Response ...................................................................................... 14 4.2 Modulation Limiting Characteristic ................................................................................... 16 5.0 Occupied Bandwidth (Section 95.633(c)............................................................................... 17 6.0 Spurious Emission (Section 95.635(b))................................................................................. 20 6.1 Field Strength of Spurious Radiation ................................................................................. 21 7.0 Frequency Stanility (Section 95.627)..................................................................................... 27 7.1 Frequency Tolerance .......................................................................................................... 28 7.2 Voltage Extreme Condition................................................................................................ 30 7.3 Temperature Extreme Condition ........................................................................................ 33 8.0 Technical Specifications......................................................................................................... 36 9.0 Product Labelling................................................................................................................... 40 10.0 Equipment Photographs...................................................................................................... 43 11.0 Instruction Mannal.............................................................................................................. 45 INTERTEK TESTING SERVICES FCC ID: OJ7988FRS0100 iv List of attached file Exhibit typeFile DescriptionFilename Cover LetterLetter of Agencyletter.pdf Operation DescriptionTechnical Descriptiondescri.pdf Test ReportBandwidth Plotbw.pdf Test ReportModulation Frequency Responsemfr.pdf Test ReportModulation Limit Characteristicmlc.pdf Test ReportSpurious Emissionspurious.pdf Block DiagramBlock Diagramblock.pdf SchematicsCircuit Diagramcircuit.pdf ID Label/LocationLabel Artwork and Locationlabel.pdf User ManualUser Manualmanual.pdf Test ReportTest Reportreport.doc Test Setup PhotoRadiated Emissionradiated1.jpg to radiated2.jpg Internal PhotoInternal Photoiphoto1.jpg to iphoto4.jpg External PhotoExternal Photoophoto1.jpg to ophoto2.jpg INTERTEK TESTING SERVICES FCC ID: OJ7988FRS0100 1 EXHIBIT 1 GENERAL DESCRIPTION …

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