The Model 4128 from Ophir RF is a Solid-State Power Amplifier that operates from 4 to 8 GHz. It delivers a saturated output power of 100 W with a gain of more than 52 dB. This amplifier utilizes Class A linear power devices and provides circuit protection against thermal overload, over-current, over-voltage, and open or short VSWR conditions. It has spurious levels better than -60 dBc and harmonics of -20 dBc. The SSPA is available in a rack-mountable enclosure that measures 19.0 x 8.75 x 26.0 inches and has N-type connectors.