The WHKE5-225-400-80-2500-1 from Wainwright Instruments is a RF High Pass Filter with Frequency 225 / 400 MHz to 2.5 GHz, Insertion Loss 0.7 to 1.1 dB, Power 1 W, Rejection 80 dB, VSWR 1.67:1. Tags: Module with Connectors, Lumped Component Filter. More details for WHKE5-225-400-80-2500-1 can be seen below.