Test loop translator
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A test loop translator (TLT) is a type of radio frequency converter or heterodyne, used to translate between uplink and downlink segments (generally in the same band), to allow for "loop-back" testing and calibration of the ground segment without the need to interface with the satellite.[1][2] TLTs generally contain a fixed or preset local oscillator and a preset gain, though the LO and gain may be adjustable in some models.[1] Most models have a negative gain (i.e., a loss), with -15 dB being the most common.[1]
References
- ^ a b c "Test Loop Translator". http://www.novella.co.uk/test_loop_tech.htm. Novella Satcoms Ltd.
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(help) - ^ "Model ASC 710C Test Loop Translator". Atlantic Satellite Corporation. Retrieved 23 February 2015.