질문:
How do I setup TDR on the 11800 series?
답변:
Step 1. Under the UTILITY menu select Initialize.
Step 2. Under the WAVEFORM menu select Sampling Head Fnc's.
Step 3. Under the pop-up menu select TDR Preset.
This should give you a waveform that looks like this:
Step 4. Add the P6150 probe with the 1X head. Change the time per division to 1 nsec. The screen should now look like this:
Step 5. Change the time per division to 10 nsec. Short the end of the P6150 to the outer shield and see that the waveform looks something like this:
Step 6. Connect the probe to the circuit that you need to test. Turn on cursors, set cursor 1 on the first part of the waveform and cursor 2 on the waveform area that represents the average impedance of the device under test.
Step 7. The cursors should read a) cursor 1- 50 ohm value of the P6150, b) cursor 2 reads the value of the device under test and c) the delta cursor reads the difference.
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FAQ ID 57326
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