Guaranteed High-Frequency Performance

When guaranteeing high-frequency performance, which data is truly important?
Is it the data obtained during product development, or the data measured from the actual products shipped to customers?
At our company, we place importance on measuring the high-frequency characteristics of the products themselves. We operate multiple network analyzers not only at our R&D division at our Tokyo headquarters, but also at our mass production facility, the Omi Factory. Having measurement capabilities at both locations is one of our key strengths.
This allows us to measure high-frequency performance directly at the production site. As a result, we can confirm the characteristics of the actual manufactured products and ship them together with their measurement data.