As early as 1977, HP started manufacture of the HP856x spectrum analyzers to enrich its RF power meters and sensors capable of measuring signals in extra of 20 GHz. HP also made configurable chassis dependent sweep turbines effective at building alerts to twenty GHz. Other T&M products and solutions of 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