The A3203-30 from Atlantic Microwave is a Directional Coupler with Frequency 1 to 2 GHz, Coupling 30 dB, Coupling Variation ± 1.25 dB, Frequency Sensitivity ± 0.75 dB, Directivity 25 dB. Tags: Module with Connectors. More details for A3203-30 can be seen below.