The WHK3-1000-1500-60-8000-20 from Wainwright Instruments is a RF High Pass Filter with Frequency 1 / 1.5 GHz to 8 GHz, Insertion Loss 0.25 to 0.3 dB, Power 20 W, Rejection 60 dB, VSWR 1.50:1. Tags: Module with Connectors, Lumped Component Filter. More details for WHK3-1000-1500-60-8000-20 can be seen below.