The ZHL-5W-422+ is a Class A, high-power amplifier providing very wide bandwidth for a broad array of military, commercial and testing applications. Excellent flatness across its entire operating frequency range makes it ideal for systems where consistent performance across frequency is required. The ampli- fier provides high-efficiency while withstanding open and short loads under full CW output power. The unit is unconditionally stable and features robust protection from high temperature extremes, overvoltages, and reverse polarity errors, making it suitable for demanding lab environments, satellite communications, line-of-sight links, defense applications, radio and television broadcast transmissions and more. Housed in an aluminum alloy case measuring 9.85 x 7.3 x 6.4″, it features SMA connectors at both ports and an optional heat sink and fan for cooling.