We'll have some pictures of the actual radar in the next post, hopefully.
Saturday, June 6, 2009
Tuesday, June 2, 2009
Hardware modifications
Looks like Rev1 is getting a new LNA.
Currently we have an RF switch making sure that the sample-and-hold doesn't get saturated,
but with an LNA we can have anywhere from -80Db gain to +60Db from our current signal.
once we get that done (over the next few weeks) we can start on Rev2!
Rev2 is probably going to use exactly the same hardware, with only a few modifications to the front end. We'll have the LNA (with its custom aluminum case) and two receive antennas.
Why two?
So we can have 2D imaging, to be more like a normal metal detector.
After that, who knows?
Currently we have an RF switch making sure that the sample-and-hold doesn't get saturated,
but with an LNA we can have anywhere from -80Db gain to +60Db from our current signal.
once we get that done (over the next few weeks) we can start on Rev2!
Rev2 is probably going to use exactly the same hardware, with only a few modifications to the front end. We'll have the LNA (with its custom aluminum case) and two receive antennas.
Why two?
So we can have 2D imaging, to be more like a normal metal detector.
After that, who knows?
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