The CH-132-BNC from MACOM is a Bi-Directional Coupler with Frequency 1 MHz to 1 GHz, Coupling 19 to 21 dB, Insertion Loss 0.5 to 0.7 dB, Directivity 20 to 25 dB, Amplitude Flatness ± 0.5 to ± 0.25 dB. Tags: Module with Connectors. More details for CH-132-BNC can be seen below.