The 2-4174-10 from ARRA Inc. is a Directional Coupler with Frequency 600 MHz to 4 GHz, Coupling 10 dB, Coupling Variation ±1 dB, Frequency Sensitivity 0.75 dB, Directivity 18 dB. Tags: Module with Connectors. More details for 2-4174-10 can be seen below.