The WHK9-75-90-40-1500-20 from Wainwright Instruments is a RF High Pass Filter with Frequency 75 / 90 MHz to 1.5 GHz, Insertion Loss 1.15 to 2.4 dB, Power 20 W, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Lumped Component Filter. More details for WHK9-75-90-40-1500-20 can be seen below.