The AE1200H9915 from Anatech Electronics is a RF High Pass Filter with Frequency 1.2 to 3 GHz, Insertion Loss 0.5 dB, Power 20 W, Rejection 50 to 55 dB@30-88 MHz, @100-164 MHz, @220-512 MHz, Return Loss 14 dB. Tags: Module with Connectors. More details for AE1200H9915 can be seen below.