The AE70-120DB5391 from Anatech Electronics is a RF Duplexer with Frequency 67.5 to 72.5 MHz / 112.5 to 117.5 MHz, Band 1 67.5 to 72.5 MHz, Band 2 112.5 to 117.5 MHz, Insertion Loss 2 dB, Attenuation 45 dB. Tags: Surface Mount. More details for AE70-120DB5391 can be seen below.