The TLR-6.25 from GeoSync Microwave is a Test Loop Translator with Downlink Frequency 0.95 to 1.75 GHz, Uplink Frequency 5.85 to 6.65 GHz, LO Frequency 4.9 GHz, Attenuation Adjustment Range 30 dB. Tags: Single Band. More details for TLR-6.25 can be seen below.