The DOT120100 from NETA Communications is a Orthomode Transducer with Frequency Tx : 13.75 to 14.5 GHz/RX : 10.75 to 12.75 GHz, Cross Polarization 55 dB, Insertion Loss 0.1 dB, Isolation 55 dB, Return Loss 15 to 25 dB (RX, TX). More details for DOT120100 can be seen below.