The TLS-6.175-INV from GeoSync Microwave is a Test Loop Translator with Downlink Frequency 0.95 to 1.45 GHz, Uplink Frequency 5.925 to 6.425 GHz, LO Frequency 7.375 GHz, Attenuation Adjustment Range 30 dB. Tags: Single Band. More details for TLS-6.175-INV can be seen below.