The BLT-2550-Ku from Atlantic Microwave is a Test Loop Translator with Downlink Frequency 11450 to 11950 MHz, Uplink Frequency 14000 to 14500 MHz, LO Frequency 2550 MHz, Attenuation Adjustment Range 30 dB. Tags: Single Band. More details for BLT-2550-Ku can be seen below.