The AE563-915DB5399 from Anatech Electronics is a RF Duplexer with Frequency 537.6 to 590 MHz (Rx) / 902 to 928 MHz (Tx), Band 1 537.6 to 590 MHz (Rx), Band 2 902 to 928 MHz (Tx), Insertion Loss 1.5 to 2.5 dB, Isolation 80 dB. Tags: Module with Connectors. More details for AE563-915DB5399 can be seen below.