The AA1050-RS from R & K Company Limited is a RF Amplifier with Frequency 9 kHz to 4 GHz, Small Signal Gain 32 to 35 dB, Gain Flatness ±2.5 dB, Noise Figure 9 dB, Output Power 19 dBm. Tags: Benchtop / Rackmount. More details for AA1050-RS can be seen below.