The F-NPCX-714172 from ETL Systems is a Waveguide Filter with Frequency 3.84 to 4.8 GHz, Input Power 100 W, Insertion Loss 0.4 to 0.6 dB, Operating Temperature -20 to 50 Degree C, Rejection Frequency DC to 3800 MHz / 4900 to 5600 MHz. Tags: Band Pass. More details for F-NPCX-714172 can be seen below.