The 11975 general purpose, leveled microwave amplifier has a frequency range of 2 to 8 GHz and adjustable output of +6 to +16 dBm. In addition, the amplifier has an adjustable bias current output port that supplies a maximum of ± 11 mA at +3 volts. This bias current is needed by some external harmonic mixers. The amplifier has automatic level control (ALC) that can be switched on and off. An "unleveled" light indicates that ALC is off.