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Agilent Technologies Agilent 8648A, HP8648A - page 252

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Application Note

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Application Note

• Demonstration Procedures, HP 8920A RF Communications Test Set

Contents

Main 1 HP 8920A & HP 8920B ! AUDIO SQUELCVOL- RF Communications Test Set, Application Handbook HP Part No. 08920-90126 Printed in U. S. A. April 1996 Rev C SCREEN CONTROL INSTRUMENT STATE DATA FUNCTIONS Notice Page Safety Considerations ! Safety Considerations for this Instrument CERTIFICATION WARRANTY Page DECLARATION OF CONFORMITY In this Book Set. This guide contains the following chapters and appendices. Page Page Page Page Page Page Page Page Page Page Page Contents Page Page Conventions Used In This Manual Product Description Features The features currently available for the Test Set include: V sensitivity (typically <1 V Specifications The Test Sets Features Feature Contents 29 The Tests Sets Front-Panel Features Screens Page Page Page Page Page These keys are used to access several instrument control and information screens. Page 37 Data Keys _ DATA FUNCTIONS CURSOR CONTROL Page 39 Non-Bracketed Keys and Memory Card Slot AUDIO IN LOHI 456 Slot for memory cards that are inserted to load software, or to record test results. CURSOR CONTROL 123 0 _ AUDIO OUTSQUELCHVOLUMEMIC/ACC ANT IN DUPLEX OUTRF IN/OUT The Test Sets Rear-Panel Features Page Page Page Measurement Guideline 1 Connector Considerations Measurement Guideline 2 Cabling and Adapter Considerations Measurement Guideline 3 Special Test Considerations Page Measurement Guideline 4 Additional Measurement Considerations Page Page Page Page 53 FM Off The Air Monitoring/Determining Unknown Transmitter Carrier Fre- quency Page Page FM Output Power, Deviation, and Frequency/Frequency Error Measurement Page Page FM Deviation and Symmetry Measurement ! Page Page FM Microphone Sensitivity and Modulation Limiting Measurement Page Page FM CTCSS Encoder Frequency and Deviation Measurement Page 67 FM CDCSS Coding and Deviation Measurements 50 COXIAL (RF OUT) AF ANALYZER DECODER Page Page 70 FM DTMF Encodes and Deviation Measurement DECODER 50 COXIAL (RF OUT) Page Page 73 Tone Frequency 145.890058 0.587 0.10354 0.980 Tone Deviation DTMF Tone Sequence FM Audio Distortion Measurement Page FM Harmonics and Spurious Output Measurement Page Page Page FM Audio Output Power Measurement Page Page FM SINAD, Receiver Center Frequency, and Modulation Acceptan ce Band- width Measurement Page Page 86 On the Test Set modulation acceptance bandwidth is displayed as AFGen1 To Deviation as shown. Modulation Acceptance Bandwidth FM Variation Of Sensitivity With Signal Frequency Measurement Page Page Page FM 20 dB Quieting Sensitivity Measurement Page Page FM Critical and Maximum Squelch Sensitivity Measurement 3Knob Keys Page Page 97 FM CTCSS Sensitivity and Bandwidth Measurement 50 COXIAL (AUDIO Page Page Page FM CDCSS Sensitivity Measurement ENCODER Page Page Page FM Audio Frequency Response Measurement Page Page FM Audio Distortion Measurement Page Page 111 FM Spurious Response Attenuation Measurement 50 COX- IAL COMBINER (AUDIO OUTPUT) SHEILDED ADUIO Page Page Page Page Page Page Page 119 AM Off The Air Monitoring/Determining Unknown Transmitter Carrier Fre- quency Page Page 122 AM Output Power, Deviation, and Frequency/Frequency Error Measurement 50 COXIAL SHEILDED ADUIO CABLE Page Page AM Microphone Sensitivity and Modulation Limiting Measurement Page 127 28.310176 18.3 0.99852 31.2 Microphone Sensitivity AM Audio Distortion Measurement This procedure is used to measure an AM Transmitters audio frequency harmonic distortion level. Page AM Harmonics and Spurious Output Measurement Page Page AM Envelope Display Measurement Page Page Page AM Audio Output Power Measurement Page Page AM Sensitivity Measurement Page Page AM AGC Measurement Page Page AM Squelch Sensitivity Measurement 3Knob Keys Page Page 149 AM Audio Frequency Response Measurement ANTENNA (RF OUT) 50 COXIAL (AUDIO Page Page 152 AM Audio Distortion Measurement ANTENNA (RF OUT) 50 COXIAL (AUDIO Page Page 155 AM Spurious Response Attenuation Measurement 50 COX- IAL COMBINER (AUDIO OUTPUT) SHEILDED ADUIO biner (HP 11636A). Page Page Page Page Page Page SSB Frequency or Frequency Error Measurement Page Page SSB Rated Output Power/Carrier Suppression Measurement Page Page Page SSB Harmonics and Spurious Output Measurement Page Page Page SSB Audio Output Power and Distortion Measurement Page Page Page SSB Sensitivity Measurement Page Page Page 182 SSB Squelch Sensitivity Measurement 50 COXIAL (AUDIO Page Page Page Page Page Page List of Measurements Using the Spectrum Analyzer 191 Measuring Transmitter High/Low Power Signals ANTENNA (RF OUTPUT) Page Page Page Page 196 Field Strength Measurements Page Page Page Analyzing External Transmitter Inter-modulation Distortion Page Page Page Page Using the Tracking Generator 206 Basic Measurements with the Tracking Generator DEVICE UNDER TEST Page Page Page 210 Antenna Return Loss (VSWR) Measurement & Tuning Source Reflected Return Loss Bridge or Directional Coupler Page 212 Load Return Loss Bridge or Directional Coupler Page 214 1/4 Wave Coaxial Filter Tuning (Swept) TEE Page Page Page Cable Fault Locations Page Page Page 222 Passive Cavity Insertion and Return Loss Measu rement Adapter Page Page Page Page Page Repeater System Effective Sensitivity Measuremen t 1 Page Page Page Page Page Page Using the Oscilloscope Oscilloscope Overview Page Page Page Page The Delta marker function is performed by: Page Page Preparing the Test Set for DC Operation Connection/Configuration for DC Power Page Preparing the Test Set for Operation Page Page Page Page Page Page Page Page Signal Generator Specifications RF Frequency Output Page Spectral Purity SSB Phase Noise: FM AM TDMA Signal Generator (HP 8920D or 8920A with Option 050 and HP 83201A) Audio Source Specifications (These specifications apply to both internal sources) Frequency Output Level RF Analyzer Specifications RF Power Measurement RF Frequency Measurement FM Measurement AM Measurement Page TDMA Analyzer (HP 8920D or 8920A with Option 050 and HP 83201A) AF Analyzer Specifications Frequency Measurement AC Voltage Measurement DC Voltage Measurement Distortion Measurement SINAD Measurement Audio Filters Audio Detectors: RMS, RMS*SQRT2, Pk+, Pk Pkmax, Pkmaxhold Page Spectrum Analyzer Specifications (Option 102) Page Adjacent Channel Power Page Signaling (Option 004) Page Remote Programming (Option 103) Reference Oscillator Specifications TCXO (Standard) OCXO (Option 001) Page General Specifications Page Page Page Page Output Spectral Purity FM AM TDMA Signal Generator HP 8920B Option 500 (includes HP 83201B) Audio Source Specifications (These specifications apply to both internal sources) Frequency Output Level RF Analyzer Specifications RF Power Measurement1 RF Frequency Measurement FM Measurement AM Measurement SSB Measurement TDMA Analyzer HP 8920B Option 500 (includes HP 83201B) AF Analyzer Specifications Frequency Measurement AC Voltage Measurement DC Voltage Measurement Distortion Measurement SINAD Measurement Audio Filters Oscilloscope Specifications Spectrum Analyzer Specifications (Option 102) Tracking Generator Adjacent Channel Power Page Signaling (Option 004) Page Remote Programming Memory Card Specifications Reference Oscillator Specifications TCXO (Standard) OCXO (Option 001) General Specifications Page Page Glossary

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