Mir Ali-4 wrote:
>
> Yeah, I got it. I read in a tutorial and I understand now.
>
>
>
hi Ali,
what tutorial do you read for this? hope it will be useful to others
especially to me =) tQ
Adib
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Hi All,
i want to save my incoming values of peaks to a file, but with
the depending date. The file should also limited to size X or
to a number of samples.
I still read to make my own c++ and grc module, but i am
not very familiar with c++. i want to make it in python
and the the grc module to
I'm encountering the same problem over where I am, and have come to the
same conclusion.
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Hi Everyone,
I think I understand the problem with the DBPSK/DQPSK. Currently, the
modulate function modulates the entire packet as 2Mbps. However, the PLCP
decode function expects the packet to be DBPSK for the header and then DQPSK
for rest of the payload.
The solution I have devised is to rew
Bump
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> This might work on x86 machines, but isn't safe on machines
> with weak memory ordering across processors (e.g., PPC, Itanium).
> You'd need to introduce architecture specific memory barriers.
>
> Can you put the mutex at a higher level (e.g., in the object that
> has the gr_oscope_guts)?
>
> Eri
Greetings, I'm new to the list, though I've been using gnuradio for about 6
months now. I'm using the USRP connected to an acoustic transceiver for
underwater communications/data collection.
I'm having some trouble sending data from a file, specifically a
wavfile_source, to a usrp_sink_c. The b
On Wed, May 13, 2009 at 03:33:41PM -0400, Tom Lutz wrote:
>
> I currently have a thread-safe *cue spock brow* way of re-allocating the
> buffers while the scope is running but it is not as clean as using a mutex
> (although it is faster, I'm sure). Here's how my method works. Tell me if
> you thi
On Wed, May 13, 2009 at 03:40:31PM -0400, Marcus D. Leech wrote:
> I don't understand why this is failing:
>
> Traceback (most recent call last):
> File "./top_block.py", line 184, in
> tb = top_block(options)
> File "./top_block.py", line 97, in __init__
> 1, bw, -7.0, 7.0, 150, fird
>
>
> What's worse is, the oscope program sometimes randomly freezes up, so I
> have to force quit the program to close it.
> -Ankit
It may be overloaded with data. Unable to keep up with the data flow,
the GUI freezes.
Try ./usrp_oscope.py -n 5
...or pick another number greater than 1 and see
I don't understand why this is failing:
Traceback (most recent call last):
File "./top_block.py", line 184, in
tb = top_block(options)
File "./top_block.py", line 97, in __init__
1, bw, -7.0, 7.0, 150, firdes.WIN_HAMMING, 6.76))
File
"/usr/local/lib/python2.5/site-packages/gnuradio/
>
> Please use the boost mutexs:
>
> #include
>
> boost::mutex m; // the mutex
>
> boost::mutex::scoped_lock guard(m)// the scoped guard
>
> Eric
>
Would it severely affect performance to create a boost::mutex::scoped_lock
inside the function gr_oscope_guts::process_s
Josh Blum wrote:
> You mean that vertical category window with all the blocks? Its
> re-sizable, so its possible you resized it down to zero at some point.
> Either try to drag it out, or remove ~/.grc (saved prefs file)
>
> -Josh
Thanks. Experimentally remove .grc and things are back to normal.
You mean that vertical category window with all the blocks? Its
re-sizable, so its possible you resized it down to zero at some point.
Either try to drag it out, or remove ~/.grc (saved prefs file)
-Josh
Marcus D. Leech wrote:
It's gone. I'm running 3.2SVN, from a couple of weeks ago, and I
mayur_CEN wrote:
I am sorry for being so impatient.Actually I have been experimenting with
this problem for a long time,so i am a bit eager to find the solution.You
guys are doing a great job helping out people with their problems.I did not
mean to offend anyone.
I have uploaded the code.I will
I am sorry for being so impatient.Actually I have been experimenting with
this problem for a long time,so i am a bit eager to find the solution.You
guys are doing a great job helping out people with their problems.I did not
mean to offend anyone.
I have uploaded the code.I will explain to you in
It's gone. I'm running 3.2SVN, from a couple of weeks ago, and I
updated today. Still the same.
No block-selection sub-window.
Help?
--
Marcus Leech
Principal Investigator, Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org
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Discuss
Please don't spam the list, the people who know the most about
gnuradio and the usrp, for the most part, have other full time jobs
and provide help on this list as a courtesy. A response time of
several days is not unreasonable in such situations.
With that in mind, the reason you may not get a r
On Wed, May 13, 2009 at 09:51:43AM -0700, mayur_CEN wrote:
>
>
> ANyone can please help?
>
> mayur_CEN wrote:
> >
> > Hello,I have modified the fmradio.py andfmtx4.py code to make a multi
> > band fm transmission system.The problem is as I increse the number of
> > channels,The interference in
You can build a simple diode detector for your scope.
- Original Message -
From: "Ankit Saf"
To:
Sent: Wednesday, May 13, 2009 9:19 AM
Subject: [Discuss-gnuradio] Re: Re: basic questions about usrp_fft.py
andusrp_oscope
Is there a way just to determine if the transmitter is work
ANyone can please help?
mayur_CEN wrote:
>
> Hello,I have modified the fmradio.py andfmtx4.py code to make a multi
> band fm transmission system.The problem is as I increse the number of
> channels,The interference increases.How do i control the gain and also the
> SNR of the transmisison.Rega
Tiago Rogério Mück wrote:
I tried the makefile in u2_rev3 but got some erros:
>>> Creating project: build/u2_rev3.ise
ERROR:HierarchicalDesignC:40 - Failed to close Project repository.
HDProject
data may not have been properly written to the Project file.
ERROR:HierarchicalDesignC:40 - Fa
Dear All,
Thanks for the many and prompt replies to my posting.
We now have a sort of BPSK demodulator, issues beyond my grasp still remains
but tests are being conducted.
Josh gave us the first real kick forward and an off-line Gnuradio/GRC expert
mailed us an 99,9% ready made GRC file. (Only ha
Hi,
> On Tue, 5/12/09, Dominik Auras wrote:
> Could you try to set different fusb parameters? I observed
> that, since the FX2 is less likely to be a bottleneck,
> tuning of these parameters may have greater impact than
> before. E.g. my laptop did an additional 2 MB/s with B =
> 16384 and N = 1
I tried the makefile in u2_rev3 but got some erros:
>>> Creating project: build/u2_rev3.ise
ERROR:HierarchicalDesignC:40 - Failed to close Project repository.
HDProject
data may not have been properly written to the Project file.
ERROR:HierarchicalDesignC:40 - Failed to close Project repository
hello,
First of all my apologies to ERIC,I did not guess the behaviour of the mail
tool.I am posting a new message .
I have modified the fmradio.py and fm_tx4.py code to transmit multiband fm
transmitter
As I increase the number of channels,the noise in the signal is increasing.
Can u suggest me
hello,
First of all my apologies to sorry,I did not guess the behaviour of the
tool.I am posting a new message .
I have modified the fmradio.py and fm_tx4.py code to transmit multiband fm
transmitter
As I increase the number of channels,the noise in the signal is increasing.
Can u suggest me how
Is there a way just to determine if the transmitter is working or not? I
have an oscilloscope, but it's limit is a few hundred MHz. And the
daughterboard I'm using (RFX 2400) starts working from 2.4 GHz.
Any ideas on that (and the previous post)?
-Ankit
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On Wed, May 13, 2009 at 12:31:23PM +0200, José Carlos Reyes wrote:
> Hi all,
>
> I would like to ask you a basic question.
> I receive the BCCH and CCCH (PCH and AGCH) GSM channels with gsm-tvoid and
> gsmdecode. I use USRP. For instance, to do that, I type something like:
>
> ./gsm_scan.py -p d
On Wed, May 13, 2009 at 11:27:22AM +0530, mayur sarode wrote:
> Hello,I have built a Multi band NBFMtransmitter.As I increase the number of
> channels for transmission ,the noise is increasing.How do i counteract this
> in the code.The code is given below#!/usr/bin/env python## a program to send
Thank you Bill and Eric.
With the change of the suggested 2 parameters dbpsk and gmsk reception
appears to be stable.
The dqpsk is still not working properly.
I will try the trunk as well. The 3.2 release seems very close :-).
Regards,
Boris
Bill Stevenson wrote:
Hi Boris
I think you need t
Hi all,
I would like to ask you a basic question.
I receive the BCCH and CCCH (PCH and AGCH) GSM channels with gsm-tvoid and
gsmdecode. I use USRP. For instance, to do that, I type something like:
./gsm_scan.py -p d -r e -c 104 | ../../../gsmdecode/src/gsmdecode -i >
myfile.txt
The problem is th
Hi all,
I would test the usrp2 functionalities on my PC but I don't know the correct
procedure of the installation.
I have installed the usrp and all works fine.
Have I to upgrade the existing source code to install the usrp2 and to use
it?
Can you give me the exact steps of the installation?
thank
Hi.
1)
I have modified benchmark_rx.py/receive_path.py to allow it to receive
two channels from two RFX2400 daughterboards (I aim to use the second
channel for sensing).
As suggested by the examples/mailing list, I inserted a deinterleave
block after the source to retrieve streams from each chann
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