The TRR-29.75-19.95 from GeoSync Microwave is a Test Loop Translator with Downlink Frequency 19.7 to 20.2 GHz, Uplink Frequency 29.5 to 30.0 GHz, LO Frequency 9.8 GHz, Attenuation Adjustment Range 30 dB. Tags: Single Band. More details for TRR-29.75-19.95 can be seen below.