The C50-106-481/4N from Pulsar Microwave is a Dual Directional Coupler that operates from 500 to 1000 MHz. This 50 dB coupler has a directivity of more than 20 dB and an insertion loss of less than 0.20 dB. It can handle an input power of up to 500 W and has a VSWR (In/Out) of less than 1.15:1. The coupler is available in a module that measures 3.0 x 2.0 x 1.5 inches with N-type connectors.