Protect your investment from excess RF power, DC transients and ESD damage with Keysight's broadband power limiters Minimize your measurement uncertainty and improve your measurement accuracy with superior RF performance Select from two limiting threshold models of 10 dBm or 25 dBm to meet your specific application needs Maximize your operating frequency range from 10 MHz to 50 GHz Integrated DC block on both input and output portsThe new N9355/6 Series power limiters provide the best broadband input protection from excess RF power, DC transients and ESD, for a variety of RF and microwave instruments and components. For example, the input circuitry of spectrum analyzers, network analyzers, frequency counters or amplifiers can be protected from unintentional inputs up to 5 watts average power.