The LSO/040-1640 from CTT Inc is a RF Amplifier with Frequency 2000 to 4000 MHz, Gain 40 dB, Gain Flatness ±1.5 dB, Noise Figure 3.5 dB, Output Power 16 to 20 dBm. Tags: Power Amplifier, Limiting Amplifier. More details for LSO/040-1640 can be seen below.