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- Fluke Networks
- Fluke Process Instruments
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The Fluke 9640A and 9640A-LPNX RF Reference Sources are designed specifically for RF calibration, featuring a calibration-oriented user interface, precision signal level and attenuation, high signal purity and precision low distortion modulation. This unique combination of features and performance makes them clearly superior to the general purpose signal generators that are often used in RF calibration systems, with the 9604A-LPNX low phase noise version providing superior phase noise performance.