The TRR-2B-2 from GeoSync Microwave is a Test Loop Translator with Downlink Frequency 17.7 to 20.2 GHz (17.7 to 20.2 GHz / 18.2 to 19.6 GHz), Uplink Frequency 27.5 to 30 GHz (27.5 to 30 GHz/ 28.6 to 30 GHz), LO Frequency 9.8 GHz / 10.4 GHz, Attenuation Adjustment Range 50 dB. Tags: Dual Band, Multi Band. More details for TRR-2B-2 can be seen below.