As early as 1977, HP began manufacture of the HP856x spectrum analyzers to enhance its RF electrical power meters and sensors effective at measuring indicators in extra of 20 GHz. HP also created configurable chassis dependent sweep generators capable of building indicators to twenty GHz. Other T&M merchandise of time https://borna.news/fa/news/2055964/%D8%B3%D8%B1%D9%88%D8%B1-hp-%DA%86%DB%8C%D8%B3%D8%AA-%D9%88-%DA%A9%D8%A7%D8%B1%D8%A8%D8%B1%D8%AF-%D9%87%D8%A7%DB%8C-%D8%A7%D9%86-%D8%AF%D8%B1-%D9%BE%D8%B2%D8%B4%DA%A9%DB%8C