The CH-140 from MACOM is a Directional Coupler with Frequency 5 MHz to 1 GHz, Coupling 18.75 to 20.75 dB, Amplitude Flatness ±0.5 dB, Directivity 17 to 20 dB, Average Power 3 W. Tags: Module with Connectors. More details for CH-140 can be seen below.