The PE15B5004 from Pasternack Enterprises Inc is a RF Amplifier with Frequency 4.4 to 4.9 GHz, Gain 10 dB (RX) to 45 dB (TX), Gain Flatness 1 to 5 dB, Noise Figure 3.5 dB, Output Power 18 to 33 dBm. Tags: Bi-Directional Amplifier. More details for PE15B5004 can be seen below.