As early as 1977, HP commenced creation of the HP856x spectrum analyzers to enhance its RF power meters and sensors capable of measuring alerts in excessive of twenty GHz. HP also developed configurable chassis based sweep generators capable of generating alerts to 20 GHz. Other T&M solutions of some time https://sociallweb.com/story3069934/%D8%B3%D8%B1%D9%88%D8%B1-hpe-%DA%86%DB%8C%D8%B3%D8%AA-an-overview