The AF6B1300F125FCA from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 1237.5 to 1362.5 MHz, Bandwidth 125 MHz, Center Frequency 1300 MHz, Insertion Loss 2.5 dB, Upper Rejection 50 dB. Tags: Surface Mount, Dielectric Filter. More details for AF6B1300F125FCA can be seen below.