The WHJ4-70-80-60-1000-50 from Wainwright Instruments is a RF High Pass Filter with Frequency 70 / 80 MHz to 1 GHz, Insertion Loss 0.45 to 0.5 dB, Power 50 W, Rejection 60 dB, VSWR 1.50:1. Tags: Module with Connectors, Lumped Component Filter. More details for WHJ4-70-80-60-1000-50 can be seen below.