The GVA-91+ from Mini Circuits is a RF Amplifier with Frequency 869 MHz to 2.17 GHz, Gain 20.4 dB, Noise Figure 6.4 dB, Output Power 43 to 28.8 dBm, Output Power 19.95 to 0.76 W. Tags: Surface Mount, Power Amplifier. More details for GVA-91+ can be seen below.