The WMA9RA-R5 from WanTcom is a RF Amplifier with Frequency DC to 400.4 MHz, Gain 27.5 to 28.5 dB, Gain Flatness ±0.05 to ±0.1 dB, Noise Figure 0.40 to 0.50 dB, Output Power 7 to 9 dBm. Tags: Surface Mount, Low Noise Amplifier, Pre-Amplifier. More details for WMA9RA-R5 can be seen below.