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]
<mailto:[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
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Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org
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