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Video and General Performance Verification
2- 66
WVR6100, WVR7000, and WVR7100 Specifications and Performance Verification
9.
Use cursors to measure the tilt in the waveform.
10.
Record the value in the test record.
Apply a field rate square wave and use cursors to measure the tilt.
1.
Press FACTORY.
2.
Press CONFIG, select Graticules, and then set Cmpst Waveform Graticule
Units to mV.
3.
Connect the precision video generator to one of the Composite A input
connectors and terminate the other connector with the precision terminator.
4.
Set the precision generator for 100% Flat Field.
5.
Press the CMPST A, CURSOR, and FULL buttons.
6.
Adjust the cursors to be near the top of the waveform.
7.
Use the VERTICAL position knob to move the top of the waveform to the
zero graticule.
8.
Press 5X.
9.
Use the cursors to measure the tilt in the waveform, excluding the first and
last 5
μ
s of the bar.
10.
Record the value 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 10 MHz.
3.
Calibrate the network analyzer, with one of the BNC cables attached, using
the 75
Ω
calibration kit.
4.
Connect the calibrated end of the cable to one of the Composite A input
connectors and terminate the other connector.
5.
Measure the Return loss from 300 kHz to 6 MHz. Record the lowest return
loss value (biggest reflection) over the frequency range in the test record.
6.
Repeat steps 4--5 for the Composite B input.
Composite Analog Line
Rate tilt
(Option CPS only)
Composite Analog Input
Return Loss Input A & B
(Option CPS only)
Содержание WVR6100 Series
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