The QOT-51 from QuinStar Technology Inc is a Orthomode Transducer with Frequency 15 to 22 GHz, Insertion Loss 0.5 dB, Isolation 30 dB, Return Loss 15.56 dB, Antenna Waveguide Dimension 0.55 Inches (Diameter). More details for QOT-51 can be seen below.
