Quisk - a qualified SUCCESS!
tfox at knology.net
Thu Jun 17 19:08:48 CDT 2010
Just to let you guys know that I just got the Charleston SDR
receiver/Nexys2 system working (barely) with Quisk (version 3.3.7)!!
(Paul: did the newsletter go to the printers already? If not, could you
add a simple sentence to my article to the likes of: Update: Terry
reports that Quisk is now working with the Charleston receiver.)
It has taken a few weeks to combine both the Quisk SDR-IQ support, and
John's GNU Radio support for the Charleston board, to make something
work. I got it ready to compile about midnight last night, then spent
until 4AM, and all of today, to kill various bugs. It turned out that
moving some things from C++ back to C was the most time-consuming, as
some gotchas were not obvious.
I still need to get the samples number format correct, as the spectrum
display is down in the weeds until the vertical gain and position are
adjusted. There are a few other things to add or fix. And, the
receiver "stops" demodulating every once in a while for about 1/2
second. I thought this was buffer underruns on the host comptuer when
this happened in GNU Radio, but now that I see it in Quisk, I'm not so
sure. I put printf statements in the code to show underruns, and
nothing appears on teh screen.
But, I've been listening to 40M for about an hour now.
I've got a lot of cleaning up to do, but should be able to release an
early version very soon. Quisk seems MUCH easier to compile and use
than GNU Radio.
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