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Vector network analysis question
Okay, thanks for that guys.
One clue that might assist in tracking down this problem is that the aforementioned arc that appears at about '37 minutes past the hour' on the outermost polar circle when the 50 ohm termination is fully screwed in first begins to appear at just before 12 o'clock and gradually circumambulates around this outer circle anticlockwise to its final position as it's fully screwed home. I'd have (intuitively) thought that once the centre pin makes proper contact with its counterpart, the trace would suddenly flick to close to the centre. But with no experience of VNAs, that's just a hunch. Any suggestions? |
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