The BWSBF-R1/20-5A from Sainty-Tech Communications Limited is a Switched Filter Bank with Frequency 0.1 to 20 GHz, Band 1 0.1 to 0.5 GHz, Band 2 0.1 to 0.9 GHz, Band 3 0.1 to 1.9 GHz, Insertion Loss 5 to 12 dB. Tags: Die. More details for BWSBF-R1/20-5A can be seen below.