The HFCN-740 from Mini Circuits is a Space Qualified RF Filter with Frequency 780 MHz to 2.8 GHz, Cut Off Frequency 740 MHz, Stop Band Frequency 430 to 550 MHz, Power 7 W, Insertion Loss 1.3 to 2 dB. Tags: Surface Mount. More details for HFCN-740 can be seen below.