I recall that that was what you had mentioned yesterday, but could you explain why setting it to 15M will allow me to grab 30M?
On Tue, Nov 19, 2013 at 6:17 PM, Tom Rondeau <[email protected]> wrote: > On Tue, Nov 19, 2013 at 6:35 PM, Paul B. Huter <[email protected]> > wrote: > > I am trying to deploy my radio application (using GRC), and I am running > > into a problem. I am sampling at 50MHz and trying to pare things down to > > 30MHz using a Low Pass Filter, defined as follows: > > > > Decimation = 50 > > Gain = 1 > > Sample Rate = samp_rate (50M) > > Cutoff Freq = 30000000 (30M) > > Transition Width = 1000 (1k) > > > > I get an error telling me cutoff frequency is greater than sample rate / > 2 > > (30 > 50/2). > > > > How can I get down to 30MHz? I do intend to look at smaller "chunks" of > data > > at a time, so I am perfectly okay with taking data at 50MHz and cutting > it > > down later, I just wanted to avoid gather unnecessary data. > > > > Thanks! > > Set the cutoff freq to 15M, not 30M. > > Tom >
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