I've been watching Chinas growth in the RF/MW field over the last 25 years, observing what they display at IMS; it started with mechanical cal kits about 20 years ago. I did not attend this year, but damn, a slew of 110 GHz test equipment. The VNA even has some identical option numbers as the PNA-X, with dual sources and identical measurements. Maybe this is why Keysight now has a PNA-X Pro.
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