The BP44R1842S300A from Sangshin is a Band Pass Filter with Frequency 1692.5 to 1992.5 MHz, Bandwidth 300 MHz, Center Frequency 1842.5 MHz, Insertion Loss 2 to 2.3 dB, Upper Rejection 15 dB. Tags: Surface Mount, Dielectric Filter. More details for BP44R1842S300A can be seen below.