The 4009 from Ophir RF is a RF Amplifier with Frequency 800 MHz to 1 GHz, Gain 54 dB, Gain Flatness ± 1.5 dB max, Output Power 50 to 53.01 dBm, Output Power 100 to 199.99 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for 4009 can be seen below.