For dvbt the bandwidth is around 9.14Msps so with the rational resampler you
need to set-up the USRP at 10Msps. 1Msps will not work as only a part of the
spectrum will be received.
Bogdan
On Monday, March 31, 2014 6:36 PM, Nasi <nesaz...@mail.ru> wrote:
Hi,
Thanks!
I am using collected data also as you say.
I am using sampling rate of 1 Mbps instead of 10 Mbps which must be the same
for static transmission. Isn't it?
Mon, 31 Mar 2014 08:23:01 -0700 (PDT) от Bogdan Diaconescu
<b_diacone...@yahoo.com>:
Hi, not having access to my setup for now but for the beginning you could try
recording the spectrum with your USRP and then use the file source to decode
the signal offline. There is a script file apps/capture.sh that I usually use
to capture data. You may tweak it for your needs (frequency, gain).
Sometimes it was reported that on old cpus the processing power is not enough
so that the result is an overflow (you directly see a long OOO message in this
case). Try to see if this is the case.
One way to reduce the overhead is to run the receiving flow directly from
command line instead of gnuradio-companion (e.g. ./top_block > out.txt) after
you have generated the flowgraph. The gnuradio-companion cannot cope with big
amount of data when the blocks gets out a lot of
text.
Bogdan
On Monday, March 31, 2014 1:22 PM, Nasi <nesaz...@mail.ru> wrote:
Hi all,
I am using ubuntu 13.04, GNURADIO 3.7.
I cannot transmit or receive using two (USRPN200 + XCRV2450 d.board+VERT2450
antennas) devices for DVB-T project.
Here is the dvb-t project: https://github.com/BogdanDIA/gr-dvbt
It will be very helpful and appreciated if you help me. If someone tested it or
can do it, please let me know. As far as I know someone tested it with N210
model.
I think this failure is due to high noise/interference or smt. else. However I
tested it already with all possible configurations. I also attach my .grc files.
--
NE
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