What about delays for a multiple USRP sinks and metafile sinks? I had to wait 10 seconds before I could start recording when I used a script like that.
On Mon, Aug 25, 2014 at 5:05 PM, Marcus D. Leech <[email protected]> wrote: > On 08/25/2014 04:30 PM, Jonathan Fox wrote: > > Got rid of it and it sped things up considerably. I think the whole reason > why I had it there in the first place was to prevent sample overruns. > > Thanks for the help. > > Putting a throttle in a flow that already has rate-pacing will just make > things worse... > > > > On Mon, Aug 25, 2014 at 3:15 PM, <[email protected]> wrote: > >> First thing, get rid of the throttle. It is only needed in >> *simulations*. In graphs with real hardware, everything is "paced" by the >> hardware. >> >> >> >> >> >> >> >> >> On 2014-08-25 15:12, Jonathan Fox wrote: >> >> How long it takes for the Metafile Sink to began recording data? >> >> I have a "No GUI" script that is a simple USRP source, throttle, and >> metafile sink. All have a 1M sample rates; the metafile sink has a relative >> rate of change of 1, 1M segment size, and have a detached header. >> >> I start my script up I get the usually GNU Radio feed back (e.g. >> "Opening a USRP2/N-Series device..."), I get the "Press Enter to quit:", >> however post processing of collected meta data has shown that I can not >> immediately start my data collection as it won't collect the leading edge >> of the signal, I need to wait several seconds before proceeding. Why does >> this happen and is it possible to get a prompt on when the metafile sink >> has started recording? >> >> Thanks, >> >> Jon >> >> _______________________________________________ >> Discuss-gnuradio mailing >> [email protected]https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> >> > > > -- > Marcus Leech > Principal Investigator > Shirleys Bay Radio Astronomy Consortiumhttp://www.sbrac.org > >
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