On Wed, Oct 09, 2013 at 05:15:04PM -0400, Baokun Liu wrote:
> Hi all,
>
> I am using USRP N210 and GRC. I have a question over changing a USRP
> parameter using a slider in GRC.
>
> If I want to change the TX frequency from 2GHz to 4GHz using a slider, as
> we know, during this process, the slide
On Wed, Oct 09, 2013 at 08:12:35PM -0400, Marcus D. Leech wrote:
> [Ideas]
Marcus,
can you please add them to
http://gnuradio.org/redmine/projects/gnuradio/wiki/GRCroadmap?
Thanks,
MB
--
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)
Dipl.-Ing. Martin Braun
Resear
Hi Bijendra,
it's not quite clear what your question is.
A couple of things you might want to consider:
- AM is per se noisy. A commercial HF receiver would also have much
better filters than you can achieve with an LFRX-only setup, so expect
much noise here
- FM is much better with noise.
-
Well it is a project I'm working on. I am trying to receive an AM signal
from HF radio which will be provided in the usrp source in my gnu and will
transmit a FM signal as output in the usrp sink which I'm trying to send it
to the VHF radio. And vice versa. I'm using CNR-900 VHF radio which freq
ra
Hi,
i cannot find the value of the FIL1 component on the gdb from the WBX
(v2). Could you give me the partnumber or specifications?
Gr. Simon
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Sorry, wrong list.
On 10-10-13 10:42, Simon IJskes wrote:
Hi,
i cannot find the value of the FIL1 component on the gdb from the WBX
(v2). Could you give me the partnumber or specifications?
Gr. Simon
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Hi Sandhya,
the official documentation for the frequency xlating fir filter
(http://gnuradio.org/doc/doxygen/classgr_1_1filter_1_1freq__xlating__fir__filter__ccc.html)
says:
FIR filter combined with frequency translation with gr_complex input,
gr_complex output and gr_complex taps.
This clas
Hi Marcus
Thanks for the explanation.It really helped me
Thanks and regards
Sandhya
On Thu, Oct 10, 2013 at 3:21 PM, Marcus Müller wrote:
> Hi Sandhya,
>
> the official documentation for the frequency xlating fir filter (
> http://gnuradio.org/doc/**doxygen/classgr_1_1filter_1_*
Hi Bijendra,
I, too, am confused.
So let's try to understand what you are doing here!
On 10/10/2013 10:39 AM, Bijendra Singh wrote:
Well it is a project I'm working on.
I am trying to receive an AM signal from HF radio
Yes, so receiving amplitude modulated audio on a carrier somewhere between 3M
On Thu, Oct 10, 2013 at 7:00 AM, Manu T S wrote:
> Hi Alex,
>
> I am using PyBOMBS for installation. PyBOMBS installed GNU Radio(3.7) to a
> local directory instead of /usr/local. In my case this directory is
> "/home/manu/gr/target/". The files missing are there in
> "/home/manu/gr/target/include
Hi all guys,
I wanted to implement a ask transmitter and a button for triggering
transmition of a single frame of data. My idea was to do that with a sort
of state machine and a button, but as far as i can see there is no button
in wx gui blocks. How do uo usually do this?
Many thanks,
--
Neman
I've taken the notes we made on the board and put them on the wiki at:
http://gnuradio.org/redmine/projects/gnuradio/wiki/GRCon13Embedded
Please add you name to the attendee list and edit as needed.
The next question is how do we keep the conversation going and how do we
actually get the work do
It is great to see some of the working group notes coming up for all to work
with on the GR wiki. I'm thinking it would be great to see other working group
notes doing the same. I know there's a page for GRC improvements, which maybe
is related to the discussion group as well as the email and
Great idea!
In fact, it's so good, it's already been implemented:
http://gnuradio.org/redmine/projects/gnuradio/wiki/GRCon13WG
MB
On Thu, Oct 10, 2013 at 08:02:22AM -0400, Michael Dickens wrote:
> It is great to see some of the working group notes coming up for all to work
> with on the GR wiki
Hi Bijendra,
I'm under the expression that Wayne has already supplied you with the idea of
the AM tx flowgraph; it's your project, clicking together the flowgraph after
his description is up to you ;)
Well, if you need full-duplex, you will need two independent RX and two
independent TX radio
Excellent! Thanks for the link. - MLD
On Oct 10, 2013, at 8:45 AM, Martin Braun (CEL) wrote:
> Great idea! In fact, it's so good, it's already been implemented:
> http://gnuradio.org/redmine/projects/gnuradio/wiki/GRCon13WG
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On Thu, Oct 10, 2013 at 1:52 AM, Ralph A. Schmid, dk5ras
wrote:
> Hi,
>
>> Looks like there is something missing from your libbladeRF.so. The
>> repository shows they were added on October 2nd. Are you sure you're
>> building the latest stuff?
>
> Should be the latest, when doing a git pull righ
I'm using the file_meta_sink to record time-stamped data, and I have a question
about the implementation of this block. I currently call it in Python as
follows:
self.blocks_file_meta_sink_0 = blocks.file_meta_sink(gr.sizeof_short*2,
self.dat_filename, samp_rate, 1, blocks.GR_FILE_SHORT, False
Hi,
I have implemented time synchronization between two USRPs without GPSDO,
MIMO cable or referring to computer's time.It's a sender-receiver method
based on message exchange. It will be included in my next paper soon.
I use the tx_time and tx_sob tag to transmit the message at the planned
time. W
Thanks, Martin.
In fact, the event would be triggered as imagined. I want to know whether
each in-between value during moving the slider would be sent to USRP, and
the USRP would react to each value? Does the value have to hold on for some
time before the event is triggered?
Thanks,
Baokun
On
Now that gnuradio.org is back up, we just need someone to populate the wiki
page on coprocessors ... I think the chair was from Sandia National Labs ..
don't remember his name now. I'll take a shot at this page in the next couple
of days if nobody else gets there; quite a bit on my queue just r
On Thu, Oct 10, 2013 at 10:17 AM, Michael Dickens
wrote:
> Now that gnuradio.org is back up, we just need someone to populate the wiki
> page on coprocessors ... I think the chair was from Sandia National Labs ..
> don't remember his name now. I'll take a shot at this page in the next
> couple
It sounds like when you say "in between" you mean the period of time from
when the user stop dragging the slider and the next time they stop dragging
the slider.
In general, when people ask this question the area of focus is the period
of time when they are dragging the slider.
John
_
On Thu, Oct 10, 2013 at 10:46 AM, Tom Rondeau wrote:
> The next big question is how is each GRWG going to be communicate with
> each other. The Wiki is the best place for more permanent ideas and
> documentation about each WG, but there needs to be a coordinated
> effort for communicating among
On Wed, Oct 9, 2013 at 11:01 PM, Achilleas Anastasopoulos
wrote:
> I attach the patch for this correction
> (for some reason I cannot git push...)
>
> Achilleas
Sorry for the delay getting back to you. I walked through the math
myself but couldn't find where you were wrong, but I knew this patch
Ok, I have found button :), but the problem is now following. Part of my
script looks like this:
def aaa(a):
global state
state = 1
state = 1
data = [0]
if __name__ == '__main__':
parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
(options, args) = parser.par
I stand corrected.
Everything works fine with the new patch now!
thanks for the help,
Achilleas
On Thu, Oct 10, 2013 at 11:22 AM, Tom Rondeau wrote:
> On Wed, Oct 9, 2013 at 11:01 PM, Achilleas Anastasopoulos
> wrote:
> > I attach the patch for this correction
> > (for some reason I cannot gi
Trying to figure that out, I went and had a look at the source code of the
wxgui slider.
In fact, it had a demo mode that could be accessed when just calling the python
file as main:
$python gr-wxgui/python/wxgui/slider.py
However, that was broken, so I fixed it; pull request against master has
On Thu, Oct 10, 2013 at 11:53 AM, Achilleas Anastasopoulos
wrote:
> I stand corrected.
> Everything works fine with the new patch now!
>
> thanks for the help,
> Achilleas
Ok, updated, tested (with updated and improved QA code) and pushed.
Also added a bit of an explanation to the build_composit
It stays the same, after uninstalling everything, pulling fresh repos,
building and installing bladeref, gr-osmosdr and gqrx in this order the
message when building gqrx remains
/usr/local/lib/libgnuradio-osmosdr.so: undefined reference to
`bladerf_fpga_version'
/usr/local/lib/libgnuradio-osmosdr.
I am attempting to transmit asynchronous packets in a precise manor using
time tags, and at the same time transmit an unmodulated carrier while there
are no packets being sent. I am considering disconnecting the USRP sink
from the packet path and connecting it to a signal source, however there
are
Those look a lot like some errors I was getting a short while ago. They
popped up while the compiler was at the linking stage. My errors were in
the CMakeList.txt files, which were somewhat opaque to me.
By elimination, can you verify that gnuradio can access your bladerf
directly? Say a source
Hello everyone,
Now I understand why most of the people get confused with the previous
topic I'm talking about. By radio I mean tactical radio for communication,
use in military communication. So my Question is, Is it possible to
integrate AM tx waveform with FM rx waveform as a working flowgraph i
I am using a Costas loop for carrier recovery with QAM16 data. The carrier is
only 2khz. The I/Q output of the Costas loop seems to track (the original
sin/cos of the modulating carrier's Frequency & Phase) steadily for a long
period (minutes) and then the Phase moves off, normally in +/- 45 or
On Thu, Oct 10, 2013 at 9:39 AM, Bennett, David S. (Scott)
wrote:
> I’m using the file_meta_sink to record time-stamped data, and I have a
> question about the implementation of this block. I currently call it in
> Python as follows:
>
>
>
> self.blocks_file_meta_sink_0 = blocks.file_meta_sink(gr
What is "directly"? J At least I can use it before updating all this stuff,
GR can RX and TX just fine, but through GR-osmosdr.
It looks to me that osmosdr may be the deeper involved in the problem, when
not updating this one nothing wrong is happening.
At the moment I am on latest revision wi
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