The P427 from Narda-ATM is a Power Divider with Frequency 12 to 18 GHz, Insertion Loss 0.9 dB, Isolation 18 dB, Input Power 30 W, Amplitude Balance +/-0.6 dB. Tags: Module with Connectors, Stripline Power Divider, Octave Power Divider. More details for P427 can be seen below.