For example: Agilent E4440A or Anritsu 68369
Ophir Amplifiers
RF Amplifiers
Ophir 5085
0.01 MHz - 200.00 MHz, 100 watt, 50db gain, Linear Power RF Amplifier

Manufacturer: Ophir
Ophir 5124
RF Amplifier Solid State Broadband High Power, 20 MHz - 1000 Mhz, 20W

Manufacturer: Ophir
Ophir 5126
RF Amplifier 20 MHz -1000 MHz, 120 W , 52 dB Gain, 2 dB p-p flatness.

Manufacturer: Ophir
Ophir 5127
RF Amplifier 20 MHz - 1000 MHz, 200 W , 54 dB Gain, 2 dB p-p flatness.

Manufacturer: Ophir
Ophir 5127FE
RF Power Amplifier - 20MHz - 1,000MHz/200Watts, Front Connectors, IEEE

Manufacturer: Ophir