The KLTA020040M55A from KeyLink Microwave is a RF Amplifier with Frequency 2 to 4 GHz, Noise Figure 4 dB, Output Power Limit 18 dBm, Output Power Limit 0.06 W, Input Power -55 to 10 dBm. Tags: Limiting Amplifier. More details for KLTA020040M55A can be seen below.