Hi,
I want to build a 2x2 mimo system using USRP N210. Would be great to get
some instructions. I have the following questions.
1. As the following figure shows, should I use four N210s where two of them
act as TX and the other two act as RX? Or can I use just two N210s?
2. When a router is used
Hello all,
I'm about to use member functions of the abstract base class of qtgui
classes to adjust visualization parameters such as "set_title",
"set_line_label"
etc.
There is an explanation of virtual based classes in [1]. So it's possible
to use pure virtual functions by the derived classes.
W
Hi,
I just tried to install gnuradio (ref:
http://gnuradio.org/doc/doxygen/build_guide.html)
until :
make test
the result is :
98% tests passed, 3 tests failed out of 193
Total Test time (real) = 117.72 sec
The following tests FAILED:
1 - qa_volk_test_all (Failed)
144 - qa_const
Has anyone used a USRP and Osmosdr source together on the same graph? I am
trying. To run a HackRF and an Ettus b200 together and I am getting a lot of
'D's. I have tried putting both at a low sampling rate but it doesn't seem to
change things. I am running it on an i7 so there should be enough
Hi Pengyu,
1. the USRPs are full duplex capable, so you can get away with just
using two.
2. You should not use a router. A switch would be ok. Please note that
you can't get more than 1Gb ~= 32MS/s over the single Gigabit link
between your PC and the switch, so it's better to use a PC with two
ne
You might try running your USRP and HackRF on separate USB controllers.
Different ports on the same controller, *might* be leading to conflicts
in packet scheduling at a fairly-low layer in the stack. I think HackRF
uses libusb, just like USRPs, so they are subject to the same
constraints in und
Maybe you're seeing a classical two-clock problem: The USRP's and the
the HackRF's have independent oscillators, and so the sampling rates are
not really exactly related to each other -- for example, your USRP could
be asked to sample 10MS/s, giving you 10.03MS/s, whereas the HackRF
is configur
Marcus,
I deleted the pybombs folder and re-cloned pybombs from remote. When
running 'sudo ./pybombs install gnuradio' I still get the same error output
when it reachees the prefix portion.
Also, I want to make sure I understand your following directions. To
install gnuradio on a computer so all
I forgot to answer one of your previous questions. Yes the error occurs
before I have a chance to enter anything for the prefix. I have no control
over it.
v/r,
Rich
On Fri, Mar 13, 2015 at 10:00 AM, Richard Bell
wrote:
> Marcus,
>
> I deleted the pybombs folder and re-cloned pybombs from remot
On Fri, Mar 13, 2015 at 9:01 AM, Basse Ang wrote:
> Hi,
>
> I just tried to install gnuradio (ref:
> http://gnuradio.org/doc/doxygen/build_guide.html)
>
> until :
> make test
>
> the result is :
>
> 98% tests passed, 3 tests failed out of 193
>
> Total Test time (real) = 117.72 sec
>
> The f
Hello everyone,
I'm going through the instructions from here:
http://gnuradio.org/redmine/projects/gnuradio/wiki/Zynq
to get a working image with gnu radio for my zedboard.
Unfortunately I can't get the board to boot with this image. I was
wondering if someone can help me.
what I tried so far
Only gave your FG a quick glance, but if you give the HPD the right
packet length, you should end up with only the data packet.
Things to check:
- Is the packet length passed to the HPD correct?
- Are there packing/unpacking issues that would add zeros? Are you maybe
calculating the packet leng
Thanks for confirming the functionality of the HPD block. That's what I was
hoping it would do. I'll assume the problem lies in how I'm using it and
debug around it.
Thanks for the help.
Rich
On Fri, Mar 13, 2015 at 10:25 AM, Martin Braun
wrote:
> Only gave your FG a quick glance, but if you g
When you 'make' a block, it actually returns you a _impl version of the
class, even though only the abstract class is declared publically. All
the methods are actually defined in the _impl, where also the members
reside.
If you're having trouble understanding the polymorphism concepts, I
sugg
On 12.03.2015 11:36, Richard Bell wrote:
Hello all,
In GRC, I've set up a packet detector that is working using the Header
Payload Demux block. Unexpectedly, however, it seems the payload output
port does not go silent when no header is detected. It outputs zeros,
which the file sink block I hav
The problem is the python posixpath's basename() when run as sudo is None.
Pybombs depends on that for the initial config.
A solution without changing the way pybombs does this is just to run
./pybombs config without root, then do your sudo pybombs install.
On Fri, Mar 13, 2015 at 12:02 PM, Rich
Hi,
I'm trying to install gr-ettus on an E310.
I previously installed a new version of UHD (to support RFNoC) in the
directory /opt/uhd
I would like to install gr-ettus into the existing version of gnuradio that
is installed.
Inside the build directory of gr-ettus, when I type "cmake ../" I get th
On Fri, Mar 13, 2015 at 1:17 PM, Alireza Khodamoradi
wrote:
> Hello everyone,
>
> I'm going through the instructions from here:
>
> http://gnuradio.org/redmine/projects/gnuradio/wiki/Zynq
>
> to get a working image with gnu radio for my zedboard.
>
> Unfortunately I can't get the board to boot wi
Ben,
you *must* use the right branch of UHD (which I know you've been using).
For cross-compiling, you need to make sure that *all* the CMake vars
starting with UHD_ are correctly set.
Are you using our SDK? If yes, it's probably pointing to the SDK's
default UHD.
M
On 13.03.2015 10:55, B
Yesterday I asked a question about a failing flowgraph when connecting the copy
block to a message source and running the flowgraph multiple times.
I'm still trying to understand what's going on, so I decided to write a version
of "copy" in python to try and better understand things. Even though
On 03/13/2015 01:17 PM, Alireza Khodamoradi wrote:
> Hello everyone,
>
> I'm going through the instructions from here:
>
> http://gnuradio.org/redmine/projects/gnuradio/wiki/Zynq
I should go over those carefully, but in the mentime I have some images
built for the zedbaord here:
https://www.dro
Please see the following news item regarding our release plans for version
3.7.7:
http://gnuradio.org/redmine/news/48
Thanks,
Tom
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Martin,
I am not using the SDK. The steps I have taken so far:
Created a new SD card from the dizzy dev image found at [1].
Followed the steps at [2] to clone the RFNoC git repository, switch to
rfnoc-devel branch, build it, install it to /opt/uhd
My next challenge was to install the gr-ettus OOT
It seems like "consume_each" is not consuming the input buffer correctly. I
stepped through the general_work function with a debugger and the input_items
are being properly copied to output_items, consume_each and return are both
being passed the correct integer for the number of input samples i
Hi,
Has a patched version of GNU Radio which runs on Android been released?
I'm working on a project where I'm transmitting information over audio
from a desktop system to an Android device, and since setting up the
transmitter end with GNU Radio was such a snap I would love to leverage
the GNU R
I didn't realize you were doing on this on the device. If you have all
the PATHs set up correctly, you should be good, but it looks like you're
using the default UHD. Have a look at your CMake cache (in gr-ettus) and
see where the UHD_* vars point to. They're 'advanced' vars, in case you
can't
And you must have rfnoc-devel branch of UHD installed. This is not on
the default image.
M
On 13.03.2015 14:14, Martin Braun wrote:
I didn't realize you were doing on this on the device. If you have all
the PATHs set up correctly, you should be good, but it looks like you're
using the default
Thanks guys. I got it working eventually. All users on our station now have
access to gnuradio.
There was no way I could get pybombs to create the config.dat file itself
in /usr/local/bin. With sudo I had the prefix error problem and without
sudo it didn't have permission to create the file. The w
On Fri, Mar 13, 2015 at 5:04 PM, Vijay Galbaransingh wrote:
> Hi,
>
> Has a patched version of GNU Radio which runs on Android been released?
>
> I'm working on a project where I'm transmitting information over audio
> from a desktop system to an Android device, and since setting up the
> transmi
On 03/13/2015 05:16 PM, Martin Braun wrote:
> And you must have rfnoc-devel branch of UHD installed. This is not on
> the default image.
Somewhere we have a toolchain file for cmake to build natively?
Otherwise the default flags are for older arms and no neon.
Philip
>
> M
>
> On 13.03.2015 14
I run gr-ettus on E300 all the time using the GNU Radio toolchain file.
You have to set UHD_INCLUDE_DIRS and UHD_LIBRARIES, though.
M
On 13.03.2015 14:52, Philip Balister wrote:
On 03/13/2015 05:16 PM, Martin Braun wrote:
And you must have rfnoc-devel branch of UHD installed. This is not on
t
Thanks for the quick reply Tom! I’ll start with this right away. Looking
forward to seeing your apps when you get a chance.
Thanks again,
Vijay
From: trond...@trondeau.com [mailto:trond...@trondeau.com] On Behalf Of Tom
Rondeau
Sent: March-13-15 14:41
To: Vijay Galbaransingh
Cc: GNURadio D
Hey Richard,
I looked at your previous post, and turns out that I actually have a
similar need; I'm trying to figure out a way to control the functionality
of the tagged file sink because I don't want it to create so many files lol
(I'd just like it to place everything in one file).
So I was thin
Hi Tom,
I connected my UART to /dev/ttyACM0. Here are the result:
-With the image from Xillybus:
I see the boot sequence and it works fine.
-With the image from http://gnuradio.org/redmine/projects/gnuradio/wiki/Zynq
I get nothing!
Am I overlooking something very obvious?
v/r
Alireza
On Fri
Hello,
I'm very new to GNURadio and to RF exploration/hacking in general. I've
downloaded GNURadio on my Linux system and have been successful in
installing a couple of systems. I got the RTL-SDR USB receiver working,
and have the gr-rds system working.
A project I thought of working on woul
Kevin,
I don't think there's anyone doing this. In general, I recommend
checking the PyBOMBS recipe list which contains a lot of active projects.
For how to start, that depends a lot on your comfort level doing
wireless comms and DSP. Do you have any details on the modulation used?
Cheers,
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