The TRE-13-11.2 from GeoSync Microwave is a Test Loop Translator with Downlink Frequency 10.7 to 11.2 GHz, Uplink Frequency 12.75 to 13.25 GHz, LO Frequency 2.05 GHz, Attenuation Adjustment Range 30 dB. Tags: Single Band. More details for TRE-13-11.2 can be seen below.