The AM942B1289 from Anatech Electronics is a Band Pass Filter with Frequency 925 to 960 MHz, Center Frequency 942.5 MHz, Insertion Loss 4 dB, Rejection 10 to 60 dB, Upper Rejection 20 to 50 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for AM942B1289 can be seen below.