On 03.03.2014 17:57, Igor Volodin wrote:
Hi all!
I am trying to build following simple scheme:
Signal source -- TCP Sink (server mode) TCP Source (client mode)
-- GUI Scope Sink
It's strange but this simple scheme isn't working.
Are you running both sub-flowgraphs in the same GRC
Is it possible to use both the antennas of USRP as receive antennas? For
example TX/RX should work on frequency f1 as a receive antenna and RX2
should work on frequency f2 as another receive antenna. Also, USRP should
be able to collect data from both the antennas simultaneously. How can I
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Hi Activecat,
your sourcecode should be fine - what you see is an error that tells
you that at runtime, a symbol could not be found. This means that the
fftw library has not been linked against.
On 2014-02-26 there was a thread on discuss-gnuradio
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Sorry, forgot to mention: additionally to the solution in my answer to
Sabathy,
add ${FFTW3(F)_LIBRARIES} to your lib/CMakeLists.txt
target_link_libraries, also add: link_directories(${FFTW3F_LIBRARY_DIRS})
Greetings,
Marcus
On 04.03.2014 10:59,
On 03/03/2014 05:00 PM, Tom Rondeau wrote:
On Mon, Mar 3, 2014 at 4:58 PM, Philip Balister phi...@balister.org wrote:
The latest Coverity scan showed these new items. We should probably
double check them. The Null dereference is likely related to the order
in which some class methods get
Hi Perper,
I took a look at your code, and I found this
//set_frequency(d_freq_offset);
It seems you have turned off the the frequency offset correction as
you said.
Do you know the reason of the introduced instability by this part?
Best,
Zhenhua
Hi Zhenhua,
The reason of
Dear Marcus,
Thank you very much.
As according to your guideline, the runtime error has been solved.
With some minor modification to the work() function, now the flow graph
executes without any error.
Cheers,
Activecat
On Tue, Mar 4, 2014 at 6:02 PM, Marcus Müller mar...@hostalia.de wrote:
I try not to use this list to promote many conferences, but DySPAN is
one that I go to (almost) every year and is very relevant to our
project. There are definitely many GNU Radio users that go, but I
wouldn't mind seeing an increased presence.
Specifically, though, I wanted to let everyone know
Hi
I am Mitul Vekariya https://github.com/mitul93 - final year student of
Electronics and Communication (ECE) branch at Nirma University, India.
I am very interested in mentioned
projecthttp://gnuradio.org/redmine/projects/gnuradio/wiki/GSoC
.
I like digital signal processing, Embedded Linux,
Hi All,
I am manipulating GNU Radio Companion.
While using the Constellation Decoder block, I have put
*digital.constellation_qpsk* as a Constellation Object argument. But, I
have found an error when I have executed the flow graph:
*Traceback (most recent call last):*
* File
On Tue, Mar 4, 2014 at 4:17 PM, Azza Ben Mosbah
azza.ben.mos...@gmail.com wrote:
Hi All,
I am manipulating GNU Radio Companion.
While using the Constellation Decoder block, I have put
digital.constellation_qpsk as a Constellation Object argument. But, I have
found an error when I have
Hi Michael,
Following your step by step guide, I could successfully test your
changes with the Funcube Dongle Pro+ and a few USB audio devices. I
tested using audio_fft.py and dial_tone.py. It really works great;
it's amazing when one can use almost random sample rates and the audio
system will
hi,
how to use the gr_modtoolto write a block inherent from a in_tree_block,such
as inherent from stream_to _vector
BZS___
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Hi,
How can we measure phase between two sine waves using FPGA?
Supposing the two sine waves have the same frequency.
For two discrete complex signals, v1 and v2. we can compute the phase
difference as follow.
v3 = v1 * conj(v2)
phase diff = arctan(imag(v3) , real(v3))
(conj() means
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