The WHKE4-50-80-60-1200-1 from Wainwright Instruments is a RF High Pass Filter with Frequency 50 / 80 MHz to 1.2 GHz, Insertion Loss 0.7 to 1.2 dB, Power 1 W, Rejection 60 dB, VSWR 1.50:1. Tags: Module with Connectors, Lumped Component Filter. More details for WHKE4-50-80-60-1200-1 can be seen below.