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{{Unreferenced|date=March 2009}}
A '''radio noise source''' is a device that emits [[radio wave]]s at a certain [[frequency]], used to [[calibrate]] [[radio telescope]]s such that received data may be compared to a known value, as well as to find the [[Focus (optics)|focal point]] of a telescope soon after construction, so that the [[wave guide]] and [[RF front end|front end]] may be properly located.
==References==
{{reflist}}
[[Category:Noise]]
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