The MCPA-850-200 from Communication Components Inc is a RF Amplifier with Frequency 851 to 869 MHz, Gain 12.9 dB, Gain Flatness ±0.5 dB, Harmonics -55 dBc, Supply Voltage 29.5 to 31.5 V. Tags: Benchtop / Rackmount, Power Amplifier. More details for MCPA-850-200 can be seen below.