The 1080-034 from Southwest Antennas is a Band Pass Filter with Frequency 1.77 to 1.84 GHz, Insertion Loss 1.5 dB, Rejection -60 to -20 dBc, Return Loss 15 dB, Operating_Temperature -20 to 60 Degree C. Tags: Module with Connectors, Ceramic Filter. More details for 1080-034 can be seen below.