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How do I measure the delay in a signal using the WFM700?

질문:

How do I measure the delay in a signal using the WFM700?

답변:

The easiest way to measure the delay in a signal with respect to an analog black or tri-level sync signal with the WFM700 is to use the external sync mode on the instrument. To do this, connect the analog black reference signal to the external sync loopthrough on the back of the WFM700 and terminate the other side of that loopthrough. Now connect the delayed (or advanced) signal to input A or B on the back of the instrument. With the WFM700 in waveform mode, set the reference to “Internal” to lock the waveform to the SDI stream you’re measuring. Now use the cursor controls to position the left cursor on a memorable portion of the waveform (a color bar transition or the fake black burst etc...). Now set the reference to “External” and if the signal is in fact delayed, you should see the waveform shift to the left or right. Now use the cursor controls and position the right cursor to the same memorable point from earlier. The cursor delta should now read the timing delay (or advance) of your signal under test.


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FAQ ID 63576

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