The RPA-SAT-100D from Metropole Products Inc. is a RF Amplifier with Frequency 291 to 318.3 MHz(TX), 243 to 270 MHz(RX), Gain 7 to 28 dB, Noise Figure 2.5 to 3.5 dB, Input Power 26.98 to 43.97 W, Input Power 0.5 to 25 W. Tags: Bi-Directional Amplifier, Low Noise Amplifier. More details for RPA-SAT-100D can be seen below.