The TRR-6.8-4.6 from GeoSync Microwave is a Test Loop Translator with Downlink Frequency 4.5 to 4.8 GHz, Uplink Frequency 6.725 to 7.025 GHz, LO Frequency 2.225 GHz, Attenuation Adjustment Range 30 dB. Tags: Single Band. More details for TRR-6.8-4.6 can be seen below.