Please tell me
How to make a radio telescope (With simpleTools )?
A radio telescope is basically just a directional antenna, a suitable radio receiver, and a way of recording the received signal (along with information about how the antenna was oriented at the time). Getting useful information out of it is the hard part.http://www.nrao.edu/index.php/learn/radioastronomy/radiotelescopeshttp://www.nrao.edu/whatisra/hist_jansky.shtmlhttp://www.nrao.edu/whatisra/hist_reber.shtmlOr websearch for "radio telescope diy". The first example is right here on Instructables, but that will show you some other homebrew setups.
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Even an AM radio, tuned off station, can act as a "radio telescope" - that out of band noise contains a surprising amount of stellar sources. After all, that's what Jansky's original research was all about !