The ZHL-5W-422+ is a high power amplifier from Mini Circuits that operates from 500 MHz to 4200 MHz. The amplifier provides up to 5 watts of power and has an IP3 of 45 dBm and IP2 of 55 dBm. It has an efficiency of 30% and safety features that protect it from damages with an open or short output load under full CW output power. It is available in a module with Sma connectors and can be used in transmitters, amateur radio, FM, TV and other applications.