Test loop translator: Difference between revisions

Revision as of 20:36, 23 February 2015

Revision as of 21:18, 23 February 2015

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{{Orphan|date=February 2015}}

A '''test loop translator''' ('''TLT''') is a type of [[radio frequency]] converter or [[heterodyne]], used to translate between [[Telecommunications link|uplink and downlink]] segments (generally in the same band), to allow for "loop-back" testing and calibration of the [[ground station|ground segment]] without the need to interface with the [[satellite]].<ref name=novella>{{cite web|title=Test Loop Translator|website=http://www.novella.co.uk/test_loop_tech.htm|publisher=Novella Satcoms Ltd.|accessdate=23 February 2015}}</ref><ref name=atlantic>{{cite web|title=Model ASC 710C Test Loop Translator|url=http://atlanticsat.com/ASC710C.htm|publisher=Atlantic Satellite Corporation|accessdate=23 February 2015}}</ref> TLTs generally contain a fixed or preset [[local oscillator]] and a preset [[gain]], though the LO and gain may be adjustable in some models.<ref name=novella/> Most models have a negative gain (i.e., a loss), with -15 [[decibel|dB]] being the most common.<ref name=novella/>

==References==

{{reflist}}

[[Category:Frequency mixers]]

{{radio-comm-stub}}

[[Category:Frequency mixers]]