The PA 3010 is used to amplify measurement signals, e.g. weak signals from high-resolution near-field probes. The PA 3010 is connected to the 50 Ω input of a spectrum analyzer or oscilloscope and supplied via the plug-in power supply unit. A near-field probe can be connected to the input of the preamplifier using an appropriate cable. The input and output of the PA 3010 are designed as SMA connectors.