13.07.2015 Aufrufe

DG8SAQ VECTOR NETWORK ANALYZER VNWA HILFE - SDR-Kits

DG8SAQ VECTOR NETWORK ANALYZER VNWA HILFE - SDR-Kits

DG8SAQ VECTOR NETWORK ANALYZER VNWA HILFE - SDR-Kits

MEHR ANZEIGEN
WENIGER ANZEIGEN

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<strong>VNWA</strong> Additional Funktions……………………………………………………………………………….. 273LCR Meter…………………………………………………………………………………………………… 273Zoom Functionality………………………………………………………………………………………….. 275Marker Summery……………………………………………………………………………………………. 277Cursor………………………………………………………………………………………………………… 286Multiple <strong>VNWA</strong> Support…………………………………………………………………………………….. 289Keyboard Shortcuts…………………………………………………………………………………………. 291Sweeping………………………………………………………………………………………….. 293Sweep Modes…………………………………………………………………………………….. 293Ultrafast Sweeping………………………………………………………………………………. 295Simultaneous Capture with two Sound Cards………………………………………………… 297Special Topics………………………………………………………………………………………………. 300How to measure Impedances – GeneralConsiderations………………………………………………. 300Time Domain Measurements…………………………………………………………………………….. 302Introduction to Time Domain Messurements…………………………………………………. 303Time Domain Reflectometry: Impulse Response……………………………………………… 308Time Domain Reflectometry: Step Response…………………………………………………. 312Time Domain Gating and inverse FFT…………………………………………………………. 314Tuning Filters in Time Domain………………………………………………………………….. 317Custom : Trace data manipulation……………………………………………………………………….. 319Renormalized Smith chart………………………………………………………………………………… 328Importing and Manipulating a Background Image………………………………………………………. 329Extracting calibration kit parameters……………………………………………………………………… 333Matching tool: Performing a matching analysis…………………………………………………………. 336Matching Network Tutorial………………………………………………………………………………… 339Crystal Analyser: Extracting Resonator Model Parameters…………………………………………… 3443-Port Analyser: Analysing balanced components…………………………………………………….. 352Characterizing a Ballon…………………………………………………………………………………….. 355Error correction models……………………………………………………………………………………. 358S-parameter test set……………………………………………………………………………………….. 359Measuring Antenna Radiation Patters…………………………………………………………………… 360Very Low Frequency Measurements…………………………………………………………………….. 363Interfacing Zplots…………………………………………………………………………………………… 365Remove-controlling the <strong>VNWA</strong>……………………………………………………………………………. 368Controlling the <strong>VNWA</strong> by Windows Messages………………………………………………. 369Controlling the <strong>VNWA</strong> by a Script File………………………………………………………… 372Binary S-Parameter file format……………………………………………………………………………. 373User Data Postprocessing…………………………………………………………………………………. 374Pascal/Delphi UserDLL example……………………………………………………………….. 377Borland C++ Builder UserDLL example………………………………………………………... 379MS Visual C++ UserDLL example……………………………………………………………… 381Optimizing USB Traffic for Modulator Use……………………………………………………………….. 383Known Issues………………………………………………………………………………………………… 389LPT Signal Conditioner……………………………………………………………………………………… 389Dynamic Range Considerations…………………………………………………………………………… 390Non-Transparent Markers………………………………………………………………………………….. 392Controls outside window, Missing Controls………………………………………………………………. 394Audio Issues…………………………………………………………………………………………………. 397Troubleshootings……………………………………………………………………………………………. 399Frequenty Asked Questions……………………………………………………………………………….. 399Verification of proper operation……………………………………………………………………………. 400USB Probems…………………………………………………………………………………….. 409USB Troubleshooting Guide……………………………………………………………………. 409Recovering Corrupted Flash Memory………………………………………………………….. 411How to reduce CPU-load…………………………………………………………………………………… 414Generation Debug Output………………………………………………………………………………….. 415T-Check……………………………………………………………………………………………………… 418Immunity of Impedance Measurements to interface……………………………………………………. 419- 423 -

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