The AE897-940DB5454 from Anatech Electronics is a RF Duplexer with Frequency 876.88 to 915 MHz / 921 to 960 MHz, Band 1 876.88 to 915 MHz, Band 2 921 to 960 MHz, Power 250 W (Input), Insertion Loss 0.9 dB. More details for AE897-940DB5454 can be seen below.