The WSF-00172 from K&L Microwave is a Band Pass Filter with passband from 1920 to 1980 MHz. This small filter has an insertion loss 0.8 dB and return loss of 15 dB. It maintains rejection levels from 40 to 60 dB and has N-Type female connectors. It can used in Picocell, Microcell and Macrocell base station installations as well as for handset testing.