On Oct 4, 2014, at 6:39 PM, Marcus D. Leech wrote: >> >> On Oct 3, 2014, at 7:30 PM, Marcus D. Leech wrote: >> >>> If you put your flow-graph itself (.grc file) somewhere, or attach it, we >>> can take a better look. >>> >>> What kind of comptuer? (OS, CPU/MEM specifics, etc). >>> >>> >>> >>> -- >>> Marcus Leech >>> Principal Investigator >>> Shirleys Bay Radio Astronomy Consortium >>> http://www.sbrac.org >> >> Hi Marcus, >> >> Thanks. The .grc file is attached. Other details: >> >> o Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz >> o Memory 3GB >> o OS 14.1 Ubuntu >> >> Cheers, >> Dan >> >> >> > I've attached updates to your graph that should make it behave more > rationally: > > 2Msps sample rate -- consistent with your programmed 1.7MHz analog bandwidth > Deleted antenna spec in source block--it contained invalid specification > Made the device address spec valid > Moved things into user-changable variables: freq and gain > Made both source and FFT use the "samp_rate" variable, so changing that > variable will change both source and FFT sink > Made FFT sink turn on averaging, and use "freq" variable to set center > frequency > > I'd suggest looking it over carefully, and comparing against what you > originally had. > > > > -- > Marcus Leech > Principal Investigator > Shirleys Bay Radio Astronomy Consortium > http://www.sbrac.org > <TVRX2.grc>
Hi Marcus, Many thanks. We will give that a try. Cheers, Dan
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