Re: [Discuss-gnuradio] Problem converting RTL 8 bit IQ samples to gnuradio native format.

[Marcus D. Leech]

On 12/19/2012 05:59 PM, Salvatore Sanfilippo wrote:
> On Wed, Dec 19, 2012 at 11:55 PM, Marcus D. Leech<address@hidden>  wrote:
>
> > The RTL *WILL NOT* support sample rates reliably above 2.4Msps, regardless
> > of how well-appointed your CPU is.  It drops them internally in
> >    its pipeline.  I would suggest using 2.4Msps, and up-sampling to 4Msps.
> Thanks Marcus, I noticed this using rtl_test + a very fast computer:
> still losing bytes above 2.4.
>
> So should I assume that when modes_rx uses gets data directly from RTL
> there is a software layer performing the up-sampling, and this is a
> probable cause of my issues after the conversion?
>
> Salvatore
Seems likely, perhaps Nick can confirm.





--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org