Dear Sir,
I am using USRP to receive signal, and then plot the signal using "WX GUI
FFT Sink".
I hope to get the vertical axis as "Power Spectral Density in dBm/Hz".
Is there any way to do that?
Regards.
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when I run :
c++filt
_ZN2gr6filter6kernel14fft_filter_cccC1EiRKSt6vectorISt7complexIfESaIS5_EEi
this is the output:
gr::filter::kernel::fft_filter_ccc::fft_filter_ccc(int,
std::vector, std::allocator >
> const&, int)
this definition is different from the one I'm using, I cant fine this in C++
A
I am afraid I did not document this, but I ran into similar issues with the
script and Kubuntu 14.04. However doing it all by hand, resolving
dependencies, load uhd and gnuradio sources, compile the stuff, installing
udev rules, installing the gnuradio icons by hand and such, this all was not
a big
I'm new to Gnuradio and python. I'm trying to write a correlation block,
somewhere in my code I use fft filter:
gr::filter::kernel::fft_filter_ccc *d_filter;
d_filter = new gr::filter::kernel::fft_filter_ccc(1, x_vector);
d_filter->filter(noutput_items,in_y,out);
I run
cmake ../
make
and it c
Ah, after re-reading the Header/Payload Demux docs, I noticed the trigger
port is optional. The block will trigger on tags connected to the input
stream.
What seems like the best strategy to me now is this:
1) Detect the header with a correlator and add a tag at the start
2) Feed the output of t
Hi Steve,
On my machine, I had to do two additional steps.
1. Set the PCIe transfer to 4096. See method #3 here:
http://dak1n1.com/blog/7-performance-tuning-intel-10gbe .
2. Set the number of descriptors in the NIC to 4096 (maximum). The
command for this is ethtool -G ethX rx 4096 tx 4096 (wh
Hi list,
I'm looking for a pointer in using GRC when creating a hierarchical block.
The hierarchical block has an parameter block of type None with ID
'taps'. The Value of the block is 'filter.firdes.root_raised_cosine(
nfilts, nfilts, 1.0, 0.35, 11 * samples_per_symbol * nfilts )'. nfilts
and sa
Hey Marcus,
Thank you for replying back! Absolutely, I've posted my flowgraphs on
imgur.com now.
Here's the link: http://imgur.com/a/a0KCX
Also, for some reason, I think it could be because I'm using the Spectrum
analyzer's tracking generator?
P.S I've done a couple of changes since my last ema
No I haven't. I was hoping to keep this a self contained grc radio, because
it makes my life easier. I will look at the benchmark scripts though.
Thanks,
Rich
On Wed, Mar 4, 2015 at 9:58 AM, Marc Newlin wrote:
> Have you looked at the narrowband example scripts? The
> benchmark_[rx|tx].py scrip
Have you looked at the narrowband example scripts? The benchmark_[rx|tx].py
scripts support packetized QPSK.
On Wed, Mar 4, 2015 at 11:54 AM, Richard Bell
wrote:
> Hi all,
>
> As the subject states, how have you detected packets in your packet based
> gnu radio SDR?
>
> The only example I have c
Possible reasons:
1. Inadequate antenna
2. No line of sight to transmitting ships
3. Incorrect subdevice or antenna specification
--n
On Wed, Mar 4, 2015 at 3:15 AM, Vladimir Musarski
wrote:
> hello
>
> i'm trying to work with gr-ais gui and after ais_rx runing i have message
> above:
>
> mint
On Wed, Mar 4, 2015 at 5:18 AM, SACHIN REGUNDWAR wrote:
> Dear All,
>
> I am very new to GNU Radio and currently trying to explore the example grc
> blocks available with the package. For example, I tried to execute the
> example given in the example folder as "dpsk_loopback.grc"
> (/home/ubuntu
Hi all,
As the subject states, how have you detected packets in your packet based
gnu radio SDR?
The only example I have come across is Tom's OFDM packet detect in the
digital examples folder. There, he uses an OFDM specific block to generate
the trigger signal for the Header/Payload demux.
My
On 03/04/2015 10:40 AM, Peter Witkowski wrote:
Hello,
In the past, I've always used the build-gnuradio script to install
everything with great success. This ensures that I have all the
latest versions of both GNU Radio and UHD.
However, I recently got a new machine and installed Ubuntu 14.0
On Wed, Mar 4, 2015 at 2:30 AM, Jorge Gallo wrote:
> Marcus,
>
> I read on the mailing list that the FG may not get killed if the FG uses
> message passing. Is this already solved? Do I have to do anything else when
> using message passing?
>
> Thanks in advance.
>
This is solved on master, but
On Tue, Mar 3, 2015 at 5:30 PM, Richard Bell
wrote:
> Hi all,
>
> I'm trying to figure out what the test_corr_and_sync example (located
> .../src/gnuradio/gr-digital/examples/demod/test_corr_and_sync.grc) is
> showing me. I see the tags added by the correlator, but they seem to jump
> around a bi
As a sanity check, I just went through and followed the build instructions
for UHD found here: http://files.ettus.com/manual/page_build_guide.html
After the make install, I ran a find for uhd_find_devices and nothing came
up.
On Wed, Mar 4, 2015 at 10:45 AM, Martin Braun
wrote:
> Peter,
>
> PyB
Peter,
PyBOMBS will most likely work, although it defaults to installing
everything in your home dir (which is recommended for development, but
different from build-gnuradio). apt-get install gnuradio will get you a
fairly recent GNU Radio, but the UHD version in there is quite old.
I can't
Hello,
In the past, I've always used the build-gnuradio script to install
everything with great success. This ensures that I have all the latest
versions of both GNU Radio and UHD.
However, I recently got a new machine and installed Ubuntu 14.04 on it (I
haven't had any issues with 14.04 before)
Sorry, I did not google well enough :-( . I found this thread here:
https://lists.nongnu.org/archive/html/discuss-gnuradio/2015-02/msg00122.html
and ldd libgnuradio-.so does not show libboost-serialization, so I
have to add the library as written by Tom in above's thread.
Sorry for bothering yo
Hello all,
I have some problems in getting my OOT module running with boost::serialization
(have never used this part of boost before). The library is installed on a
recent Kubuntu 14.10 with pybombs GNU radio. Once trying to run a GRC model
with a component of this module, I get the error
At
Hi Marcus,
Thanks for your inputs. I tune the frequency as you said :
DEBUG: Received tx_freq mid-burst.
DEBUG: Received tx_freq on start of burst.
DEBUG: Received command: freq
-- Tune Request: 2435.00 MHz
-- The RF LO does not support the requested frequency:
-- Requested LO Frequency
hello
i'm trying to work with gr-ais gui and after ais_rx runing i have message
above:
mint@mint ~/src/gr-ais/apps $ ais_rx
linux; GNU C++ version 4.8.2; Boost_105400; UHD_003.008.001-105-g91ae742f
-- Operating over USB 3.
-- Initialize CODEC control...
-- Initialize Radio control...
-- Pe
Dear All,
I am very new to GNU Radio and currently trying to explore the example grc
blocks available with the package. For example, I tried to execute the example
given in the example folder as "dpsk_loopback.grc"
(/home/ubuntu/examples/digital/demod/dpsk_loopback.grc). I have following
dou
Hi Javier,
can you run
"gnuradio-config-info --version" for us,
as well as
"which gr_modtool", and copy & paste the output of these commands into
an email?
Greetings,
Marcus
On 03/04/2015 05:05 AM, javier wrote:
> I have installed the version 3.7.2.1 which is in the ubuntu 14.04 's repos.
>
>
>
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