The WHKE4-35-50-50-800-1 from Wainwright Instruments is a RF High Pass Filter with Frequency 35 / 50 MHz to 800 MHz, Insertion Loss 0.9 to 2 dB, Power 1 W, Rejection 50 dB, VSWR 1.50:1. Tags: Module with Connectors, Lumped Component Filter. More details for WHKE4-35-50-50-800-1 can be seen below.