Product Overview The ZHL-25W-63+ is a Class AB, high-power amplifier providing 25W saturated power over the 700 to 6000 MHz band, ideal for a variety of high-power test setups as well as applications including communications, radar and more. The ruggedly-designed amplifier provides unconditional stability and built-in self-protection against reverse polarity, excessive drive and overheating. It is capable of withstanding short and open circuits at output while continuously delivering 20W of power. Housed in a rugged aluminum alloy case measuring 5.6 x 8.8 x 1.2″, the unit features SMA connectors and an optional heat sink and fan attachment for cooling.