The QHZ-23B Series from Crane Aerospace & Electronics is a 90 Degree Hybrid Coupler with Frequency 30 to 200 MHz, Average Power 1 W, Insertion Loss 0.3 to 0.75 dB, Isolation 20 to 25 dB, Coupling -3 dB. Tags: Drop In. More details for QHZ-23B Series can be seen below.