The AM5800B1109 from Anatech Electronics is a Band Pass Filter with Frequency 5.73 to 5.85 GHz, Bandwidth 125 MHz, Center Frequency 5800 MHz, Insertion Loss 1.5 dB, Upper Rejection 11 dB @ 6000 MHz. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for AM5800B1109 can be seen below.