The AB1780B716 from Anatech Electronics is a Band Pass Filter with Frequency 1.73 to 1.84 GHz, Bandwidth 110 MHz, Center Frequency 1780 MHz, Insertion Loss 1 dB, Lower Rejection 43 dB, 1865-2000 MHz. Tags: Module with Connectors, Cavity Filter. More details for AB1780B716 can be seen below.