The KATLT-300310-202212-N22 from Jersey Microwave is a Test Loop Translator with Downlink Frequency 20.20 to 21.20 GHz, Uplink Frequency 30 to 31 GHz, LO Frequency 9.8 GHz, Attenuation Adjustment Range 30 dB. Tags: Single Band. More details for KATLT-300310-202212-N22 can be seen below.