The WHKE4-3-7.5-60-200-0.01 from Wainwright Instruments is a RF High Pass Filter with Frequency 3 / 7.5 MHz to 200 MHz, Insertion Loss 0.6 to 1 dB, Power 0.01 W, Rejection 60 dB, VSWR 1.50:1. Tags: Module with Connectors, Lumped Component Filter. More details for WHKE4-3-7.5-60-200-0.01 can be seen below.