The KN1840M52A from KeyLink Microwave is a RF Amplifier with Frequency 1.805 to 1.88 GHz, Gain 52 dB, Output Power Limit 51.76 dBm, Output Power Limit 149.97 W, Supply Voltage 28 V. Tags: Power Amplifier. More details for KN1840M52A can be seen below.