The WHJ10-170-185-40-2000-50 from Wainwright Instruments is a RF High Pass Filter with Frequency 170 / 185 MHz to 2 GHz, Insertion Loss 0.95 to 1.45 dB, Power 50 W, Rejection 40 dB, VSWR 1.50:1. Tags: Module with Connectors, Lumped Component Filter. More details for WHJ10-170-185-40-2000-50 can be seen below.