The WHJ4-35-40-40-650-50 from Wainwright Instruments is a RF High Pass Filter with Frequency 35 / 40 MHz to 650 MHz, Insertion Loss 0.5 to 0.7 dB, Power 50 W, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Lumped Component Filter. More details for WHJ4-35-40-40-650-50 can be seen below.