The 154-058-016 from Broadwave Technologies is a Power Divider with Frequency 20 to 500 MHz, Insertion Loss 1.6 to 2 dB, Isolation 18 dB, Input Power 1 W, Amplitude Balance ±0.5 dB. Tags: Module with Connectors, Reactive Power Divider. More details for 154-058-016 can be seen below.