[Discuss-gnuradio] SSRP: real signals and GNURadio support

[David Carr]

Hi all,

With the release of the 0.3.1 version of the ssrp codebase and the newly 
ported gr-ssrp-0.1, the ssrp now has
functioning GNURadio support.  Chuck Swiger has been doing some 
excellent work with the FX2 board, a Maxim 1420
eval board and the SSRP software.  Earlier today he informed me that we 
had a functioning data aquistion system and just a
few minutes ago he sent me some images of a modulated AM carrier he aquired.
Here are some pictures:
Hardware setup - http://www.widomaker.com/~cswiger/adc_1.jpg
415Khz sq at 15Msps - http://www.widomaker.com/~cswiger/sq_plot.jpg
1Mhz carrier AM modulated by 740hz tone - 
http://www.widomaker.com/~cswiger/am_mod.jpg

With the GNURadio source module working I expect we'll have some 
software demodulated signals soon as well.

On the LTC1746 front, I spent this evening assembling the carrier 
board.  All that remains to complete the first prototype is
to etch and assemble the lower PCB.  I'll post some pictures when I can 
get hold of a camera.

-David Carr