[hpsdr] And Now for something Completely Different

[AA8K73 GMail]

Just thinking out loud Jim,


The proliferation of GPSDO might make time synchronization more 
achievable for long baseline.  I think it still falls short for 
phasing.


The uwSDR team < http://uwsdr.berlios.de/ > with G4KLX is 
working on affordable modules, though bandwidth is limited by 
the A to D converter.

However, you might be able to use an array of them to increase 
bandwidth coverage.


Mike - AA8K


James Brown wrote:
> ***** High Performance Software Defined Radio Discussion List *****
> 
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> 
> ------------------------------------------------------------------------
> 
> I was going through some old videos that I made some 25 years ago and 
> came to a talk give by Robert Dixon of the Ohio State 'Big Ear' fame - 
> the place that heard the 'WOW' signal.  He was describing a 'Radio 
> Camera' where he would layout an array of dipoles each closely coupled 
> to a down converter and then the output routed to a central location 
> where there would be a powerful computer to do the FFT and beam 
> forming.  The results would be a picture of the sky that would 'twinkle' 
> as cosmic events happened.  Good idea but with lots of problems as I am 
> sure you understand. He has updated his ideas and they can be found at 
> the  North American Astrophysical Observatory <http://www.naapo.org/> site.
>  
> My question is this:
> Is there some combination of SDR and antenna technology that could cover 
> part of the microwave spectrum ( say up to 2 gHz) and make something 
> like this finally possible?  Where are the major problems?  I expect - 
> locking the clocks and the needed speed of the A-to-D is the current 
> stumbling blocks.
>  
> Any ideas?
>  
> regards....... Jim  
> 
> W6KYP
> www.SETI.Net <http://www.SETI.Net>
> 

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