The VSTLT-C / VHTLT-C from WORK Microwave is a Test Loop Translator with Downlink Frequency 3.4 to 4.2 GHz, Uplink Frequency 5.850 to 6.65 GHz, LO Frequency 2.45 GHz, Attenuation Adjustment Range 30 dB. Tags: Single Band. More details for VSTLT-C / VHTLT-C can be seen below.