The 1579 from Weinschel by Spectrum Control is a Power Divider with Frequency DC to 26.5 GHz, Insertion Loss 8.5 dB, Input Power 0.5 W, Amplitude Balance 0.15 dB, Phase Balance 5 Degrees. Tags: Module with Connectors, Resistive Power Divider. More details for 1579 can be seen below.