The WHKE2-40-50-30-1000-1 from Wainwright Instruments is a RF High Pass Filter with Frequency 40 / 50 MHz to 1 GHz, Insertion Loss 0.3 to 0.5 dB, Power 1 W, Rejection 30 dB, VSWR 1.50:1. Tags: Module with Connectors, Lumped Component Filter. More details for WHKE2-40-50-30-1000-1 can be seen below.