am I right to assume that you already are considering the group delay
of the filter that you specified and there's "excess" delay beyond
that?
Best regards,
Marcus
On Wed, 2019-12-18 at 19:59 +, Angilberto Muniz Sb wrote:
> Hi all,
>
> I have a dual tone signal t
Yes, Virmones, we do have some USRP experiments in
Brazil -- I'm located in Manaus (AM), and I've heard
that some folks in Brasilia (DF) have been poking
around with GNU-Radio and USRP.
Angilberto.
> Hi List
>
>
>
> I'm a new user of Gnuradio, I would like to know as
> to use digital oscope
>
Is there a way or method to calculate (find) the
minimum signal level to input into the ADC?
I mean, if I decide to build or interface a custom RF
board, how much gain should I provide in the analog
path, assuming a 500nV at the antenna terminal?
Thank you,
Angilberto.
Humm... I've put some 'prints' in the 'set_freq' and
'set_next_freq' functions and came to the conclusion
that those functions are never called !
Angilberto.
--- Angilberto Muniz Sb <[EMAIL PROTECTED]> wrote:
> Hi Eric,
>
> In the '
Hi Eric,
In the 'main_loop' of 'usrp_spectrum_sense.py' it says
that m.center_freq is the current tunning/tunned freq
and that m.data is the mag-squared of the FFT.
When I run it I always get:
0 (Zero) as the 'm.center_freq' and some numbers out
of the m.data structure (seems ok). Was not
'cente
Two tumbs up for Ubuntu 6.06 LTS !!!
I ordered my two USRPs about 2 years ago and could
never make it to work under linux (FC3,FC4 RHx...).
I finally gave up on it and started to play USRP under
Windows.
A couple of weeks ago I decided to give Ubuntu a try
-- and Voila -- its working like a cham
Eric,
If we start usrp_siggen.py, for instance, and set -f 0
(zero) or no frequency at all, what blocks gets
activated?
Angilberto.
--- Eric Blossom <[EMAIL PROTECTED]> wrote:
> On Wed, Aug 30, 2006 at 01:28:33PM -0400, Lee Patton
> wrote:
> > On Wed, 2006-08-30 at 06:56 +, Eric Blossom
> wr
Hi all,
I've modified the fpga design to include some gadgets
like a signal generator, qpsk modulator, etc
My signal generator is sitting just in between the TX
buffer and the Interpolator (tryed after the
interpolator also). There is a software controlable
switch (FR_USER_3) to turn on/off t
9862
controllable by both the FX2 and the FPGA?
Angilberto.
--- Matt Ettus <[EMAIL PROTECTED]> wrote:
> Angilberto Muniz Sb wrote:
>
> >Hi All,
> >
> >Im working on a project that needs a continuos
> update
> >of a slow varying DC signal. I was able t
Hi All,
Im working on a project that needs a continuos update
of a slow varying DC signal. I was able to realize
part of the project and put it into the FPGA. Now I
need a way to update the AUX_DAC port on the 9862, but
aparently that is handled by the USB uController ! Is
that correct ? To set up
Thank you very much for the explanation, Charles.
That explains what I see on the Spectrum Analyser and
why I was getting some weird signals in Matlab...
Thank you,
Angilberto.
--- Charles Swiger <[EMAIL PROTECTED]>
wrote:
> On Tue, 2006-07-18 at 08:57 -0700, Angilberto Muniz
&
Folks,
I'm confused with -i option in siggen.py...
If I want to generate a pure 1MHz sine wave centered
at 10MHz carrier is it correct to use:
siggen.py --const --sine -f 1e6 -c 10e6
or should I use:
siggen.py --const --sine -f 1e6 -c 10e6 -i 32
or neither one ???
Would somebody elaborate on
I used mingw/MSYS to build on windows.
> > To build everything I installed
> > mingw/MSYS
> > python-2.4.1.msi,
> wxPython2.6-win32-ansi-2.6.0.0-py24.exe
> > and python numeric
> >
> > Then I build and installed all the required
> libraries.
> > t
Thank you Eric -- I'll take your advice...
Angilberto.
> --- Eric Blossom <[EMAIL PROTECTED]> wrote:
>
> > On Sat, Jun 10, 2006 at 08:51:46AM -0700,
> Angilberto
> > Muniz Sb wrote:
> > > Does anybody know where to find the "
Hi Martin,
Thank you for the (long) explanation.
I do have the package from your web site (I must
confess I never took a look at the files other than
the binary installer...).
I'll go over it this weekend...
Angilberto.
--- Martin Dvh <[EMAIL PROTECTED]> wrote:
> Angilberto
Does anybody know where to find the ".h" file
declaring "USRP_DATOUT_ENDPOINT" ?
Its referenced in "USRP.CC" (see below)...
...
...
int r = usb_bulk_write (udh,
USRP_DATAOUT_ENDPOINT, (char *) buf, n * sizeof
(short), 1000);
if (r < 0){
fprintf (stderr, "usb_bulk_write failed (loop
%
under windows...
Angilberto.
--- Angilberto Muniz Sb <[EMAIL PROTECTED]> wrote:
> Hi Robert,
> Did you get any reply on this subject ?
>
> I'm trying to do same thing (no success :-( )
>
> Angilberto.
>
> --- Robert Roberts <[EMAIL PROTECTED]> wrote:
>
Hi Robert,
Did you get any reply on this subject ?
I'm trying to do same thing (no success :-( )
Angilberto.
--- Robert Roberts <[EMAIL PROTECTED]> wrote:
I have found the drivers for using the USRP in
Windows. Is there any
documentation of what functions can be called through
them? Or what
Got it -- Thanks Matt.
Angilberto.
--- Matt Ettus <[EMAIL PROTECTED]> wrote:
> On Tue, 2006-05-30 at 00:05 -0700, Angilberto Muniz
> Sb wrote:
> > Sorry if it sounds silly, but why one is supposed
> to
> > get DC out of the DAC if Carrier Freq is set to
> zero?
&g
Sorry if it sounds silly, but why one is supposed to
get DC out of the DAC if Carrier Freq is set to zero?
What if one generates a 1Mhz QPSK in GNURadio ? Its
not zero hertz, its baseband...
Im puzzled...
Angilberto.
--- Matt Ettus <[EMAIL PROTECTED]> wrote:
> On Sat, 2006-05-27 at 12:16 -0700,
toplevel/usrp_std i.e. the
> usrp_std.qpf file.it will ease you work on
> locating what is used and
> where
>
> and by the time you get real help, i hope you can
> survive with this one ;)
>
> regards,
> amit
>
> On 5/28/06, Angilberto Muniz Sb
> <
? If so, how come we have 1,2 or
4 DDC in the system?
Thankx,
Angilberto.
==========
From: Angilberto Muniz Sb
Subject: [Discuss-gnuradio] FPGA bit file -- again
Date: Mon, 12 Dec 2005 16:46:05 -0800 (PST)
-
Matt,
Id like to have it.
Is it just Python or do we have to deal with .i and
.cc also?
Im running the Windows Version of GNU-Radio and cant
add anything new besides .py
Thanks,
Angilberto.
--- [EMAIL PROTECTED] wrote:
>
> Hi,
>
> I've made some changes to scopesink.py so that it
> also all
Perfect Eric.
Thank you for the details...
Angilberto.
--- Eric Blossom <[EMAIL PROTECTED]> wrote:
> On Mon, Apr 03, 2006 at 06:34:24AM -0700, Angilberto
> Muniz Sb wrote:
> > Folks,
> > Is it possible to read/write from/to the low speed
> > ADC/DAC from Python?
Folks,
Is it possible to read/write from/to the low speed
ADC/DAC from Python?
If possible, what would be a safe rate ?
Thankx,
Angilberto.
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Ok, I'll give it a try too, Jared.
Thankx,
Angilberto.
--- [EMAIL PROTECTED] wrote:
> Hello Angilberto,
>
> AMS> Said so, I decided to try Linux again. Since
> I've tryed (and gave
> AMS> up on) RH9.0 and FC3 I'll try SuSE 10.0.
>
> As of a couple of weeks ago, Debian came with
> gnuradio ve
Thank you for you both, Eric and Berndt.
Angilberto.
--- Berndt Josef Wulf <[EMAIL PROTECTED]> wrote:
> On Friday 31 March 2006 02:21, Eric Blossom wrote:
> > On Thu, Mar 30, 2006 at 07:07:56AM -0800,
> Angilberto Muniz Sb wrote:
> > > Eric,
> > >
> > &
Eric,
After struggling for weeks with GNU-Radio+USRP and
Linux I moved to Martin (DVH) Windows Version. It
works pretty good but I'm missing the new
developments.
Said so, I decided to try Linux again. Since I've
tryed (and gave up on) RH9.0 and FC3 I'll try SuSE
10.0.
My question: Does it come
Mao,
I'm a Windows user too, and Im wondering how was you
able to run "test_usrp_standard_rx.cc" ?! Its not in
the distribuition -- were you able to compile it under
windows ?
All I can run are Python scripts, not .cc (.exe)...
Angilberto.
--- mao mao <[EMAIL PROTECTED]> wrote:
>
> The problem
John,
Try this:
...
from gnuradio import gru
...
mux = gru.hexint(0xf0f0f0f0)
...
It works for me...
Angilberto.
--- jjw <[EMAIL PROTECTED]> wrote:
>
> Has anybody had any experience using the
> capture_to_file.py code from KD7LMO?
> (http://kd7lmo.net/ground_gnuradio_software.html) I
> am
http://webpages.charter.net/cswiger/plotting.html
>
> Or if you prefere matlab/octave, Dawei Shen's
> website
>
> http://www.nd.edu/~dshen/GNU/
>
> has an FAQ which gives some information.
>
> Thomas
>
> On 3/22/06, Angilberto Muniz Sb
> <[EMAIL PROTECTED]
John,
Try this:
...
from gnuradio import gru
...
mux = gru.hexint(0xf0f0f0f0)
...
It works for me...
Angilberto.
>
>
> --- jjw <[EMAIL PROTECTED]> wrote:
>
> >
> > Has anybody had any experience using the
> > capture_to_file.py code from KD7LMO?
> > (http://kd7lmo.net/ground_gnu
Can anybody show how to plot from file?
I can capture wbfm to file (modified
capture_to_file.py -- kd7lmo)
I can "play" fm from file (modified nfm_rcv_file.py --
kd7lmo)
Now -- after a capture to file, how do I plot it ?
Thank you,
Angilberto.
"dual_fft.py" if is there anyone interested...
My next move is try to implement receive diversity
based on MRRC and transmit diversity based on
Alamouti's STBC...
Thank you,
Angilberto.
--- Eric Blossom <[EMAIL PROTECTED]> wrote:
> On Sat, Mar 11, 2006 at 07:41:02AM -0800,
I think I've got it, Eric.
According to "usrp_standard.h" the set_mux method
understand the mux value a differente way...
BTW does the same mux value works for rx way?
Angilberto.
--- Angilberto Muniz Sb <[EMAIL PROTECTED]> wrote:
> Eric, it works but theres somet
Eric, it works but theres something I dont
understand...
No matter of what I put in the
"self.u.set_mux(0x)"
I always get 1st signal out to tx board A and 2nd
signal out to tx board B.
I suppose I could switch output channels just swapping
the mux values...
Also, according to "usrp_standard.
Thats the path I'm on, Eric.
I've done simulations in Simulink and tested the
concept in FPGA with two differente views:
1 - 100% analytical (no manipulation of any phisical
caracteristics of the IF signal)
2 - Changing the phase of LO (NCO) according to some
cost function.
It seems to work...(i
--- Robert McGwier <[EMAIL PROTECTED]> wrote:
> ... I agree that a drawback is that
> in order to get
> decent noise performance (low NF) the best solution
> is to put a preamp
> on each element.
Well we could experiment with the concept of ESPAR
(switched parasitic array antenna), where y
some switched-beam device based on a
Butler Matriz...
Angilberto.
--- cswiger <[EMAIL PROTECTED]> wrote:
> On Tue, 20 Dec 2005, Angilberto Muniz Sb wrote:
>
> > Chuck, I'm pretty sure you are aware of it --
> that's
> > the bases of some Phased-Array antenna
Chuck, I'm pretty sure you are aware of it -- that's
the bases of some Phased-Array antennas -- I'm woking
on this subject albeit its not related to USRP but
your experiment could be the starting point for this
kind of venture...
Good job,
Angilberto.
--- Robert McGwier <[EMAIL PROTECTED]> wro
Right to the point ! -- thanks Martin.
Angilberto.
--- Martin Dvh <[EMAIL PROTECTED]> wrote:
> Angilberto Muniz Sb wrote:
> > Do I need any special (not provided) file or
> config to
> > regenerate .rbf files? (2.6 tarball - usp-0.9)
> >
> > When I open the
I'm trying to bypass the hardware DDC/DUC and tying to
implement the FPGA based UP/DOWN conveters.
Looking into 'ddc.v' and 'duc.v' we see references to
'cic_decim_2stage' and 'cic_interp_2stage'
respectively, but there are no '.v' equivalent files
-- the close to it are 'cic_interp.v' and
'cic_de
Do I need any special (not provided) file or config to
regenerate .rbf files? (2.6 tarball - usp-0.9)
When I open the project file and try to compile it, I
get a number of errors and warning msgs...
Out of curiosity: the project file makes reference to
a 'adc_interface.v' file that is non-existen
hough I
> don't really know the details of doing that; there
> may also be much
> better ways of doing it.
>
> On Thu, 2005-08-18 at 12:54 -0700, Angilberto Muniz
> Sb wrote:
> > I'm trying, Eric -- thats why I'm asking...
> > If my code works I'll
I'm trying, Eric -- thats why I'm asking...
If my code works I'll post it...
Regrds,
Angilberto.
--- Eric Blossom <[EMAIL PROTECTED]> wrote:
> On Wed, Aug 17, 2005 at 07:17:18PM -0700, Angilberto
> Muniz Sb wrote:
> > Hi folks,
> >
> > Is ther
Hi folks,
Is there any BPSK/QPSK example "a la"
fsxk_tx.py/fsk_rx.py floating around ?
Thanks,
Angilberto.
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_
Martin,
After I installed your pack Im getting the following
behavior:
cd\gnuradio\samples\python\audio
dial_tone.py
Messages:
popup window:
Runtime Error!
Program: c:\python24\python.exe
This application requested the Runtime to terminate it
in an unusual way...
...
DOS:
gr_vmcircbuf_mmap_
2005 at 06:10:44PM -0700, Angilberto
> Muniz Sb wrote:
> > Matt
> >
> > While playing with "test_usrp_standard_tx[rx].cc"
> > setting
> > "-c" flag, I was expecting the folloing:
> >
> > xx x
> > xx x
&
Matt
While playing with "test_usrp_standard_tx[rx].cc"
setting
"-c" flag, I was expecting the folloing:
xx x
xx x
xx x
xx x
xx x ..
But its not what I am getting.
If I change the code that deal with the "counting
flag" as:
Matt,
If I "modprobe ehci_hcd" I get "cant find module.."
There is a ehci-hcd.o module under /lib/modules/...
/usb
Would it be some permissions issue?
Reading some parts of hotplug I see that the USP ID is
../2 before firmware loading and ../102 after firmware
loading (supposedly).
If I unpl
>
> from gnuradio import audio
> to
> from gnuradio import audio_oss as audio
>
That worked out -- audio ok!
>
> try "modprobe ehci_hcd" before plugging in the USRP.
>
Still no go!
When I "modprobe ehci-hcd" I get:
".../ehci-hcd.o: init_module: No such device"
If try 'usrp_siggen.py' as
Folks,
Do I need some special config or setup?
Under this distro my USRP shows up as FULL-Speed but
under FC-3 it shows up as HIGH-Speed.
Audio examples runs ok on a standard linux but under
KNOPPIX no good -- it says I have no audio card!
The other examples say "...cant find USRP0..."
Has anyb
7:14:41AM -0700,
> Angilberto Muniz Sb wrote:
> >
> >>Now it works -- I had to create the directories:
> >>c:\usr\local\share\usrp\rev2 and put the .ihx and
> .rbf
> >>files in there...
> >
> >
> > Good to know. Thanks!
> >
> &
Now it works -- I had to create the directories:
c:\usr\loca\share\usrp\rev2 and put the .ihx and .rbf
files in there...
Angilberto.
>
> test_usrp_standar_*.exe -- cant find .ihx nor .rbf
>
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After changing so many things on my setup I cant trust
it no more -- I'll do a fresh/clean reinstall of
everything (including FC3).
Lets see how it goes...
Angilberto.
--- Eric Blossom <[EMAIL PROTECTED]> wrote:
> On Tue, May 03, 2005 at 05:03:16AM -0700, Angilberto
> Muniz
Hello all,
I just tested it under WinXP-SP2 and USRP-Rev2.
>
> ... the usrp module appears to work
> (with fast USB) under
> Windows (with rev0 board).
>
usrper.exe ok!
load firmware and load fpga -- ok
led1 on/off -- ok
> ...
> install the USRP filter, and check the various
> test_usrp_stand
Im working on somethin similar to it -- Smart
Antennas.
Im struggling to get the bundle GNU-Radio and USRP up.
No success so far...
Angilbert.
--- Kenneth Ng <[EMAIL PROTECTED]> wrote:
> I'm not sure if this would be off topic or not, but
> has anyone ever
> tried using GNU-Radio for remote sens
Its kind of working!
I´m still getting a lot of core-dumps, but I can see
the waveforms -- great!
I had to install wxPhython Devlopment package!
Thank Eric and Richard,
Angilberto.
--- Eric Blossom <[EMAIL PROTECTED]> wrote:
> On Sun, May 01, 2005 at 06:00:13PM -0700, Angilberto
&
Thakx Eric -- I'll try it...
Angilberto.
--- Eric Blossom <[EMAIL PROTECTED]> wrote:
> On Sun, May 01, 2005 at 06:00:13PM -0700, Angilberto
> Muniz Sb wrote:
> > Matt,
> > Would you provide a very simple analog-loop-back
> > sample application? I mean, I
commands in different windows:
>
> $ ./fsk_rx.py -f /dev/null -c 10M -r 100k -N
> $ ./fsk_tx.py -f /boot/vmlinuz -R -c 10M -r 100k
> -N
>
> > -Original Message-
> > From:
> [EMAIL PROTECTED]
> [mailto:discuss-
> > [EMAIL PROTECTED] On
> Behalf O
Matt,
Would you provide a very simple analog-loop-back
sample application? I mean, I'd like to hookup a cable
between Analog-out to Analog-in, generate some signal
e display its waveform on the oscope...
I cant seem to make it work -- may be my analog
d'board are not working -- unfortunately I don
Similar situation down here in Brazil, but
after adding the softlink it complains with
"file not found..." or something similar...
Any tips on where to put some break code to help debug
the issue?
Rgrds,
Angilberto.
--- [EMAIL PROTECTED] wrote:
> I fixed it by adding the following softlink:
>
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