The ALT-2050-Ku from ETL Systems is a Test Loop Translator with an input frequency range of 12750-13250 MHz and an output frequency range of 10700-11200 MHz. This test loop translator has an LO frequency of 2050 MHz and an impedance of 50 Ohms. It has an input/output VSWR of 1.8:1 and a minimum attenuation range of 30 dB. The test loop translator has a low phase noise of -115 to -132 dBc/Hz (1 M offset) and a high LO frequency stability of +/-2ppm/day. It has a maximum input level of 10 dBm and requires an input power supply of 80-240 V. The test loop translator measures 19 x 1U x 13.5 inches and is designed to replace the satellite link for test and alignment of earth station systems operating in the Ku frequency band.