The NP-551 from NP Technologies Inc is a RF Amplifier with Frequency 1.1 to 1.6 GHz, Gain 23 to 24 dB, Gain Flatness ±1 dB, Output Power 45.8 to 46.02 dBm, Output Power 38.02 to 39.99 W. Tags: Power Amplifier. More details for NP-551 can be seen below.