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This is one of the most confusing measurement issues I’ve seen in the lab—not because it’s rare, but because it looks so reasonable when it happens. You may have run into something like this: Same spectrum analyzer Same signal source Same settings...

Over the past few years, I’ve seen the same situation again and again: An engineer sends me a few screenshots of quotes.Their local suppliers are offering used Keysight / Rohde & Schwarz / Anritsu gear.At the same time, they’ve found other quotes wit...
