The LNI-4250-4400-Q from Atlantic Microwave is a Test Loop Translator with Downlink Frequency 0.8 to 2.6 GHz, Uplink Frequency 43.5 to 45.5 GHz, LO Frequency 42.5 to 44.0 GHz, Attenuation Adjustment Range 60 dB. Tags: Single Band. More details for LNI-4250-4400-Q can be seen below.