Performance Verification
4- 30
WVR610A & WVR611A Waveform Rasterizers Service Manual
11.
Verify that there are no EDH errors on the SDI A input.
12.
Record a pass or fail as appropriate in the test record.
This test uses a network analyzer to check the reflections from the input. You can
also use the Spectrum Analyzer, tracking generator, and return loss bridge to
make this measurement.
1.
Turn on the network analyzer and set it for Return loss (the S11 measure-
ment).
2.
Set the frequency range for approximately 300 kHz to 500 MHz.
3.
Use the calibration kit and calibrate the network analyzer with one of the
BNC cables attached.
4.
Connect the calibrated end of the cable to the SDI input A of the waveform
rasterizer.
5.
Terminate the other SDI Input A connector.
6.
Measure the Return loss from 300 kHz to 270 MHz. Record the lowest
return loss value (the biggest reflection) over the frequency range in the test
record.
7.
Repeat steps 3 through 5 for SDI Input B.
This test uses a network analyzer to check the reflections from the input. You can
also use the Spectrum Analyzer, tracking generator, and return loss bridge to
make this measurement.
1.
Turn on the network analyzer and set it for Return loss, the S11 measure-
ment.
2.
Set the frequency range for approximately 300 kHz to 10 MHz.
3.
Use the calibration kit and calibrate the network analyzer with one of the
BNC cables attached.
4.
Connect the calibrated end of the cable to one of the Reference inputs on the
waveform rasterizer.
5.
Terminate the other Reference connector.
6.
Measure the Return loss from 300 kHz to 6 MHz. Record the lowest return
loss value (the biggest reflection) over the frequency range in the test record.
SDI Return Loss, A and B
Inputs
External Reference Return
Loss
Summary of Contents for WVR610A
Page 4: ......
Page 14: ...Table of Contents x WVR610A WVR611A Waveform Rasterizers Service Manual...
Page 18: ...Service Safety Summary xiv WVR610A WVR611A Waveform Rasterizers Service Manual...
Page 22: ...Preface xviii WVR610A WVR611A Waveform Rasterizers Service Manual...
Page 23: ...Specifications...
Page 24: ......
Page 53: ...Operating Information...
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Page 90: ...Operating Basics 2 36 WVR610A WVR611A Waveform Rasterizers Service Manual...
Page 132: ...Changing Instrument Settings 2 78 WVR610A WVR611A Waveform Rasterizers Service Manual...
Page 139: ...Theory of Operation...
Page 140: ......
Page 147: ...Performance Verification...
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Page 201: ...Adjustment Procedures...
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Page 204: ...Adjustments 5 2 WVR610A WVR611A Waveform Rasterizers Service Manual...
Page 205: ...Maintenance...
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Page 228: ...Repackaging Instructions 6 22 WVR610A WVR611A Waveform Rasterizers Service Manual...
Page 229: ...Options...
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Page 234: ...Options and Accessories 7 4 WVR610A WVR611A Waveform Rasterizers Service Manual...
Page 235: ...Diagrams...
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Page 243: ...Replaceable Electrical Parts...
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Page 246: ...Electrical Parts List 9 2 WVR610A WVR611A Waveform Rasterizers Service Manual...
Page 247: ...Replaceable Mechanical Parts...
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