The PA 2522 from Langer EMV-Technik is a Pre-Amplifier that operates from 10 MHz to 22 GHz. It provides a gain of 25 dB and has a noise figure of 3 dB at 10 GHz. This pre-amplifier is specifically designed for the amplification of measuring signals, e.g., weak signals of near-field probes with high resolution. It is to be used with the 50-ohm input of a spectrum analyzer or an oscilloscope and is powered by the plug-in power supply. With the correct cable, a near-field probe can be connected to the input of the preamplifier. It is available as a module that measures 50 x 38 x 14 mm with SMA connectors. The preamplifier comes in a set with its power cable and case.