The 4X4-LDQ-0.698/3.8-N from Leader-MW is a 90 Degree Hybrid Coupler with Frequency 698 to 3800 MHz, Average Power 200 W, Insertion Loss 7.2 dB, Isolation 20 dB, Coupling 3 dB. Tags: Module with Connectors. More details for 4X4-LDQ-0.698/3.8-N can be seen below.