The BLT-1800-Ku from Atlantic Microwave is a Test Loop Translator with Downlink Frequency 10950 to 11450 MHz, Uplink Frequency 12750 to 13250 MHz, LO Frequency 1800 MHz, Attenuation Adjustment Range 30 dB. Tags: Single Band. More details for BLT-1800-Ku can be seen below.