The TLPA1800M4G-45-42 from Talent Microwave Inc is a RF Amplifier with Frequency 1.8 to 4 GHz, Gain 45 to 47 dB, Gain Flatness ±2 to 3 dB, P1dB 37 to 38 dBm, P1dB 5.01 to 6.30 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for TLPA1800M4G-45-42 can be seen below.