On 03/27/2016 05:53 AM, tom x wrote:
Hi,
>I think my PC can handle this sample rate
Have you tried other rates? What's the highest sample rate before
overflow occurs?
>How can I handle this problem ?
Maybe a power squelch block? You can filter out signals that don't
meet a db threshold before they reach your PC.
https://gnuradio.org/doc/doxygen/classgr_1_1analog_1_1pwr__squelch__cc.html
That's not how Gnu Radio works. The blocks run on your PC.
However the power squelch I believe interrupts the sample stream, so
that if you're writing to disk, the average write rate to the disk
is lowered in this case, depending on the dynamics of the amplitude
of your signals, since you'll only be writing "good stuff".
If you're getting 'D', this may be your ethernet controller--what type
do you have? The 82579LM is notorious for dropping data.
Also, make certain that your network buffering is configured
correctly. See the notes here:
http://files.ettus.com/manual/page_transport.html#transport_udp_linux
On Sun, Mar 27, 2016 at 10:56 AM, SangHyuk Kim <tkdgur7...@gmail.com
<mailto:tkdgur7...@gmail.com>> wrote:
Hi,
I'm using USRP N210 with CBX daughter board on native Ubuntu 14.04
When I open fft_uhd with sample rate about 25 MSps, it spits out
of "D"(overfow)
As I know, USRP N210 support sample rate up to 25 MSps and it's
possible on Tx mode.
I think my PC can handle this sample rate, but I don't know why
this is happened.
How can I handle this problem ?
Thanks.
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