A key attribute that sets Holzworth HA7000 Series Real Time Phase Noise Analyzers apart from the competition is the capability for measuring the absolute phase noise floor of each instrument. This is very valuable information because like spectrum analyzers, no two phase noise analyzers are identical even if they are of the same make and model number. The absolute noise floor measurement capability is available with Holzworth phase noise analyzers due to a unique reconfigurable front end that allows users to access several internal modules. The ability to measure the actual noise floor of the instrument provides users with a known level of confidence in their data by demonstrating the instrument’s true noise floor relative to the measured data.