The ZHDC30NS-1-12.4-500A from ZTS Technologies is a Directional Coupler with Frequency 1 to 12.4 GHz, Coupling 30 dB, Coupling Variation ±1.5 dB, Directivity 12 dB, Average Power 500 Watts. Tags: Module with Connectors. More details for ZHDC30NS-1-12.4-500A can be seen below.