The C5-P9-411 from Pulsar Microwave is a Directional Coupler with Frequency 800 MHz to 1 GHz, Coupling 30 dB, Coupling Variation ±0.5 dB, Amplitude Flatness 0.2 dB, Directivity 20 dB. Tags: Module with Connectors. More details for C5-P9-411 can be seen below.