The WHKE3-25-35-60-500-1 from Wainwright Instruments is a RF High Pass Filter with Frequency 25 / 35 MHz to 500 MHz, Insertion Loss 0.7 to 1 dB, Power 1 W, Rejection 60 dB, VSWR 1.50:1. Tags: Module with Connectors, Lumped Component Filter. More details for WHKE3-25-35-60-500-1 can be seen below.