Handheld VNA instruments include the Microwave Site Master 2-Port 2-Path with frequency options up to 40 GHz. The Site Master instruments have a 2-Port 1-Path VNA option to 6 GHz. Handheld VNAs are ideal for cable and antenna measurements in the field where optimum accuracy and features are required as well as precision measurements on components and subsystems such as amplifiers and filters.