As early as 1977, HP commenced creation of the HP856x spectrum analyzers to enrich its RF electric power meters and sensors able to measuring signals in excessive of 20 GHz. HP also developed configurable chassis based sweep turbines able to making indicators to 20 GHz. Other T&M products and solutions https://businessbookmark.com/story3038354/little-known-facts-about-%D8%B3%D8%B1%D9%88%D8%B1-hpe-%DA%86%DB%8C%D8%B3%D8%AA