2008/5/4 Steve Totaro <[EMAIL PROTECTED]>:
>
> On Sun, May 4, 2008 at 11:15 AM, Eric Blossom <[EMAIL PROTECTED]> wrote:
> > On Sun, May 04, 2008 at 04:19:16PM +0200, Trond Danielsen wrote:
> > >
> > > GNU Radio and related tools are now availabl
GNU Radio and related tools are now available from the Fedora
repository which should get you up and running in no time :-)
Regard,
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lution
that I have used my self is to just increase the Doppler frequency
search range of your acquisition procedure.
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f freq?
>
> Any suggestions? Thanks a lot!
Hi,
I think you might find this thread from the mailing list archive
useful: http://lists.gnu.org/archive/html/discuss-gnuradio/2007-04/msg00105.html
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2008/3/27, Trond Danielsen <[EMAIL PROTECTED]>:
> 2008/3/26, mohamed adm <[EMAIL PROTECTED]>:
>
> > Ubuntu 7.10 Gusty seems to be more GR-friendly than
> > others, I tried it well and everything works fine, but
> > can't find USB info from "lsusb
ut that GNU Radio and related tools will
be available for Fedora 9 when it is released at the end of april.
Hopefully these packages will be backported to F8, which makes Fedora
a GR-friendly distribution.
Regard,
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;t have it installed or it can't otherwise be found.
I notice that on the line before the failed check ./configure looks
for subversion. ldd /usr/bin/svn tells me that the svn binary is
linked with libarputil-1.so.0 on my Fedora 8 box. This might not be a
solution to your problem,
rate of the BPSK modulation.
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5 is *very* flakey on Fedora
> > 7--crashes without provocation every few
> > minutes. [If anyone here happens to know the fix for that, that would
> > be cool, but I'm mostly interested
> > in Gnu Radio "gotchas"].
I am using FF 2.0.0.5, and can
>
> What is the type of the "data" result?
The type of data is a numpy array. It can be converted to an ordinary
python list:
a_list = data.tolist()
However, whenever a list is expected, a numpy array can always be used.
> vector_source_c expects a Python list or tuple of complex.
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90330289e+13j
>5.91237359e-02 +4.88047634e+23j , -5.31466166e+33 -3.25484218e-18j]
>
> which works fine.
>
> I haven't been able to find much documentation about numpy so I don't
> know how to convert between these data types..
2007/7/19, Vincenzo Pellegrini <[EMAIL PROTECTED]>:
thanks Trond,
doesn't
gr.file_source--->usrp_sink
constrain me at the maximum speed of my hard drive?
and what whould be the right flow graph setup for buffering via
gr.vector_source,
anything like:
gr.file_source--->data=gr.vector_sink
gr
ate to do this?
You could either use gr.file_source_x or gr.vector_source_x.
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python? Any other ideas are very
> welcome.
>
> Thanks,
> tvb
>
>
>
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uld it be
that one you are thinking of?
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ng average
filter. You can find the GNU Radio documentation for it here:
http://gnuradio.org/doc/doxygen/classgr__single__pole__iir__filter__cc.html
If you want to know more, I can recommend this:
http://www.dspguide.com/ch19/2.htm
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__
one more thing that I just can not figure out. The largest
angular rotation that can be performed by the CORDIC is +/- pi/2,
which means that is takes four cycles to rotate the vector all the way
around. How come the largest frequency that can be generated be 32
MHz.
Thanks in advance
Regards,
2007/6/28, Brian Padalino <[EMAIL PROTECTED]>:
On 6/28/07, Trond Danielsen <[EMAIL PROTECTED]> wrote:
> Hi,
>
> after having read several papers on the subject, I am still not able
> to find the answer I am looking for. I wonder how to calculate the
> frequency resolut
2007/6/28, Johnathan Corgan <[EMAIL PROTECTED]>:
Trond Danielsen wrote:
> after having read several papers on the subject, I am still not able
> to find the answer I am looking for. I wonder how to calculate the
> frequency resolution of the CORDIC algorithm. In an earlier
anyone point me to where I can find a deviation of this
result?
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2007/6/27, Matt Ettus <[EMAIL PROTECTED]>:
Trond Danielsen wrote:
> Hi,
>
> I have a small question regarding the frequency range and bandwidth of
> the DBSRX daughterboard from www.ettus.com. According to the
> daughterboard datasheet [1] the frequency range is from 800 t
MAX2118 [2] states a frequency range from 925 to
2175 MHz, and the adjustable LP filter BW is 4 to 33 MHz.
If someone could provide some information that would enlighten me on
these matters I would be most grateful.
Regards,
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[1] http://www.ettus.com/downloads/miscdboards_v3b.pdf
[2
2007/6/22, Teun van Berkel <[EMAIL PROTECTED]>:
gnuradio.org down? :(
It works just fine in my little corner of the world.
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mplish.
Best regards,
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f this daughter board is approx. 900 to 2400 MHz, which is
outside the signal you are trying to receive.
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ftware. With modern CPUs, SIMD instructions and advanced
algorithms, I do not think the performance here is that much
different.
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see if I can get Fedora running on it.
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ou can either use the gr.max_xx or gr.argmax_xi blocks that are
available in trunk to get the maximum value or the argument of the
maximum value from the FFT.
Or you can just sink the signal to a vector sink, and process the
recorded signal with numpy/scipy or octave/matlab if that is your c
this possible or are other things like CPU speed/PC memory becoming an
issue?
Correct me if I am wrong, but in the usrp_rx_cfile.py script there is
an option to transfer 8-bit samples across the USB. With this option
enable, it should be possible to increase the BW at the expense of the
resolution
No problems so far. I recommend that you run
./bootstrap and ./configure again after pulling from svn. This ensures
that the generated Makefiles are updated according to the svn changes.
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cture to a power-of-two bytes.
> >On this platform, our allocation granularity is 4096 bytes.
It's printed out on line 126 of gr_buffer.cc.
Hack away ;)
Eric
I also get a lot of messages like this, and I suspect it is the curse
for doing vector processing on vectors of length othe
need to be updated to reflect the change.
numpy is part of the "Engineering and Scientific" group, so the
instructions for Fedora is up to date:
http://gnuradio.org/trac/wiki/FedoraInstall
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Dis
then :)
[1]. I have looked into message queues, but it is not what I am
looking for. Mblocks might be the answer, but they were not available
in March.
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f.acquisition, 0), self.ca_sink )
self.connect( (self.acquisition, 1), self.fd_sink )
self.connect( (self.acquisition, 2), self.rmax_sink )
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2007/5/23, Trond Danielsen <[EMAIL PROTECTED]>:
2007/5/23, Ben Loftin <[EMAIL PROTECTED]>:
> Chris,
>
> I have successfully done coarse acquisition using the correlator developed
> here,
>
> https://projects.cecs.pdx.edu/~icarroll/SoftwareGPSCorrelator/in
Spirent GPS simulator. The recorded data files are available from
ftp://open-gnss.org/pub/opengnss/raw_gps_data.
Please let me know if you have any feedback.
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ht
2007/5/14, Davide Anastasia <[EMAIL PROTECTED]>:
Il giorno lun, 14/05/2007 alle 11.23 +0200, Trond Danielsen ha scritto:
> > Il giorno lun, 14/05/2007 alle 11.09 +0200, Trond Danielsen ha
> scritto:
> > > > Hi List,
> > > > is it possible to use o
2007/5/14, Davide Anastasia <[EMAIL PROTECTED]>:
Il giorno lun, 14/05/2007 alle 11.09 +0200, Trond Danielsen ha scritto:
> > Hi List,
> > is it possible to use only real sampling coming from the DBSRX?
>
> I am not sure if I understood your question correctly, but
e real part of the complex signal should
contain all of the information.
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bsite:
http://gnuradio.org/trac/wiki
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nvironment, so if Fedora has these split up (like Debian derivatives
do) then you only need to install the former.
http://gnuradio.org/trac/wiki/FedoraInstall should now be correct.
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c wiki?
You can use the guest account with password gnuradio.
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Hi,
I notice from the documentation that all of the different
single_pole_* filters have the same difference equation. Is this
correct?
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2007/5/10, Eric Blossom <[EMAIL PROTECTED]>:
On Thu, May 10, 2007 at 05:02:21PM +0200, Trond Danielsen wrote:
> 2007/5/10, Eric Blossom <[EMAIL PROTECTED]>:
> >On Thu, May 10, 2007 at 10:24:04AM +0200, Trond Danielsen wrote:
> >>
> >> Ok, I read from pkt.py
2007/5/10, Eric Blossom <[EMAIL PROTECTED]>:
On Thu, May 10, 2007 at 10:24:04AM +0200, Trond Danielsen wrote:
>
> Ok, I read from pkt.py that to finish a packet, I just append
> gr.message(1) at the tail of the message queue, but is there a simple
> way to do this if I just w
2007/5/10, Eric Blossom <[EMAIL PROTECTED]>:
On Wed, May 09, 2007 at 11:14:43PM +0200, Trond Danielsen wrote:
> 2007/5/9, Eric Blossom <[EMAIL PROTECTED]>:
> >On Wed, May 09, 2007 at 08:12:05PM +0200, Trond Danielsen wrote:
> >> Hi everyone,
> >>
> >&
2007/5/9, Eric Blossom <[EMAIL PROTECTED]>:
On Wed, May 09, 2007 at 08:12:05PM +0200, Trond Danielsen wrote:
> Hi everyone,
>
> I've got a problem with messages and message queues. The problem is
> simply that I just cannot figure out how to use them. I tried the
&
e and point me in the right direction, I would be very
thankful!
Regards,
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#!/usr/bin/env python
from gnuradio import gr
class testing(gr.top_block):
def __init__(self):
gr.top_block.__init__(self, "testing")
self.src = gr.vector_source_f( ra
io/blksimpl folder
I can also recommend the doxygen documentation, which is available
online: http://gnuradio.org/doc/doxygen/hierarchy.html.
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put 0
gr_buffer::allocate_buffer: warning: tried to allocate
4 items of size 32000. Due to alignment requirements
16 were allocated. If this isn't OK, consider padding
your structure to a power-of-two bytes.
On this platform, our allocation granularity is 4096 bytes.
- - -
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set_mbh.cc] Error 1
make[2]: Leaving directory
`/home/trondd/src/gnuradio/trunk/build/mblock/src/lib'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/trondd/src/gnuradio/trunk/build/mblock/src'
make: *** [all-recursive] Error 1
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Makefile.am
etc, but that should (in theory... :) ) not be too hard.
Cheers,
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Index: gr_mean_XX.cc.t
===
--- gr_mean_XX.cc.t (revisjon 0)
+++ gr_mean_XX.cc.t (revisjon 0)
@@ -0,0 +1,64 @@
+/* -*- c++ -*- */
+/*
+
, so I cannot commit it
now. I will however request a build once it is open again. In the
meantime you should be able to download the src.rpm for devel or FC6
(they are identical) and build it your self. Sorry for the
inconvenience.
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for gr_float.
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pref ere to
stay out of assembly land a little longer.
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2007/4/23, Eric Blossom <[EMAIL PROTECTED]>:
On Mon, Apr 23, 2007 at 10:48:58AM +0200, Trond Danielsen wrote:
> Hi everyone,
>
> I've written a couple of blocks for GNU Radio, but am not satisfied
> with the performance. I am therefore thinking of using SIMD
> instr
know that DSPs such as the Blackfin has special vector
instructions that would make this very simple, but I am not sure about
x86.
I am also going to write a general purpose multiply and accumulate
block that would benefit much from SIMD instructions.
Any comments are appreciated.
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ters from Matlab, but it works.
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2007/4/16, Eric Blossom <[EMAIL PROTECTED]>:
On Mon, Apr 16, 2007 at 10:20:59AM +0200, Trond Danielsen wrote:
> Hi,
>
> I've written a block that return the index of the largest element in a
> vector; in other words, it implements the argmax function. Now I have
> a
2007/4/16, Johnathan Corgan <[EMAIL PROTECTED]>:
Trond Danielsen wrote:
> I've written a block that return the index of the largest element in a
> vector; in other words, it implements the argmax function. Now I have
> a small issue, I would relay like to get both the valu
ed the nth output with the input stream.
Has anybody written something like this allready?
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is? I am thinking of just sequencially outputing the index and
the value after each other and de-interleaving them to get each result
in a separate stream.
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2007/4/12, Eric Blossom <[EMAIL PROTECTED]>:
On Thu, Apr 12, 2007 at 02:50:17PM +0200, Trond Danielsen wrote:
> Hi,
>
> I have a problem with insufficent shared memory. I'm running GNU Radio
> from SVN, and keep getting these messages:
>
> gr_vmcircbuf_sysv_shm:
2007/4/12, Johnathan Corgan <[EMAIL PROTECTED]>:
Trond Danielsen wrote:
> I wonder if anybody has any suggestion on how to integrate a vector
> signal? I have a block that generates a vector signal, but I want to
> integrate the output over 3-10 vectors to improve the SNR. Now
ra Core 6
x86_64 that runs on an AMD 64 with 1 GB ram.
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ional modules are missing). Any hints
on how to solve this?
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from gnuradio import gr,window
from local_code import local_code
class acquisition(gr.hier_block2):
def __init__(self, fs, fd):
self.fft_size = int( 1e-3*fs)
self.window = window.bla
implement this ( y(n) = x(n) + x(n-1) + ... + x(n-N-1) ) , but
I am not sure how to accomplish the same thing on a vector signal.
Any comments are welcome!
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o mailing list"
> Cc: "Eric Blossom" <[EMAIL PROTECTED]>
> Sent: Friday, April 06, 2007 3:38 AM
> Subject: [Discuss-gnuradio] New Wiki Front Page
>
> The front page to the GNU Radio wiki has been updated to a simpler and
> hopefully more easily navigable format.
eters
look here: http://archive.chipcenter.com/dsp/DSP010531F1.html
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2007/3/27, Trond Danielsen <[EMAIL PROTECTED]>:
2007/3/27, Eric Blossom <[EMAIL PROTECTED]>:
> > Okay, I think I understand. But still, when inspecting the signal with
> > ursp_fft.py, the signal is not at baseband, but offset by approx.
> > 500kHz
>
> 500
b atm, but I'll post a screenshot tomorrow when I
get back to the university (which is in about 10h).
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2007/3/27, Eric Blossom <[EMAIL PROTECTED]>:
On Tue, Mar 27, 2007 at 10:36:05AM +0200, Trond Danielsen wrote:
> Hi,
>
> I have a problem with my DBSRX daughterboard. I tried to send in a
> single carrier on 1.57542 GHz and watch it with usrp_fft.py, and I
> observe that t
driver contains only magic number
for someone who does not have access to this. Would it be possible to
add this information to the wiki?
I would very much like to test you C++ driver.
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e meaningful, but
otherwise the code should be very similar.
SOAPpy is availble here: http://pywebsvcs.sourceforge.net/
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is 1.5755 GHz. Is it not possible to tune the
DBSRX to 1.57542 GHz? BTW: How is the C++ version of the dbsrx driver
coming along? Does it contain any improvements over the python
version?
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Discuss
/lib/general/
gr_probe_signal_f.h
gr_probe_signal_c.h
gr_probe_signal_avg_mag_sqrd_f.h
gr_probe_signal_avg_mag_sqrd_c.h
I was looking for something like this too, but from what I can see,
gr_probe_signal_c.* is not available in trunk (rev. 4796). Am
4, so everyone can chose what they want :)
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2007/3/24, Martin Dvh <[EMAIL PROTECTED]>:
http://investor.raytheon.com/phoenix.zhtml?c=84193&p=irol-newsArticle&ID=975694&highlight=
The URL contains "investor", which makes me to think:
"Don't belive the hype"
f you need help with this, just contact
me off the list, and I will send you the instructions.
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g: Are you building agains
qt-3 or qt4?
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uation, the interrupted path would
work with old data. Any way to flush this or are the buffers small
enough to neglect this effect? I guess this would also be true for
connect/disconnect.
A mute block already exist:
http://gnuradio.org/doc/doxygen/classgr__mute__cc.html.
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f it until even the canonical upstream source
has one.
When packaging stuff I try to remain compatible with upstream, but the
qwt package contains _alot_ of header files, and I think it would be
better to store them in a separate subfolder. I'll discuss this with
2007/3/15, Trond Danielsen <[EMAIL PROTECTED]>:
Hi,
qwt-5.0.1 packages for Fedora are now available here:
ftp://open-gnss.org/pub/fedora/qwt/
A small error reported by Johnathan Corgan has now been corrected: New
package here: ftp://open-gnss.org/pub/fedora/qwt/qwt-5.0.1-2.x86_64.rpm
a
,
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spec file has
been created for gnuradio-3.0.3.
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2007/3/12, xrin oscar <[EMAIL PROTECTED]>:
Hi,
the package is sdcc-2.5.0.tar.gz.
The latest version of sdcc is 2.6.0, I suggest you try that before
trying to debug the older version.
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2007/3/9, xrin oscar <[EMAIL PROTECTED]>:
Hi,
I try to compile sdcc package and i met with the following problem.
Help needed. Thanks.
Hi, I have not seen that error before, but may I ask which
distribution and version of sdcc you are using?
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c, and create symlinks.
The easiest way is to just add /usr/libexec/sdcc to path before
./configure && make. This is the way it is done in the upcoming spec
file.
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http:/
his to the wiki:
http://gnuradio.org/trac/wiki/MailingLists
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is to move as much of the
signal processing as possible onto the host computer. Moving the FFT
back to the FPGA would therefore be a step backward in the software
approach. This is just my personal opinion, so feel free to spank me
with a 10 foot monopole if your view is different :)
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GPS! I am creating a similar application, and wonder what your
goals are? Are you creating a complete receiver in GNU Radio, or a you
using an existing software receiver?
Feel free to contact me off list if you want to discuss more.
Cheers,
--
Trond
2007/3/6, Martin Dvh <[EMAIL PROTECTED]>:
I would add a heading "Full Documentation Index" or "Wiki Index" with a link
to http://gnuradio.org/trac/wiki/TitleIndex under Documentation.
Good idea! I had that in mind earlier, but somehow it must have sl
months ago. Glad to see they got it into production.
Eric
Wow! Looks cool, but I'm glad it was not available 6 month ago, or I
might never have gotten into GNU Radio... :)
--
Trond Danielsen
___
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.or
read about the m-block architecture, and I must say that is seems
very nice, but a bit too complicated for my simple needs. I just need
to estimate some parameters at a low rate, and update another graph
dynamically. BTW: Has anybody else done any work on CDMA?
--
Tron
2007/3/6, Eric Blossom <[EMAIL PROTECTED]>:
On Tue, Mar 06, 2007 at 01:38:51PM +0100, Trond Danielsen wrote:
> Hi,
>
> I creating a spec file for GNU Radio, and I discovered some minor issues:
>
> 1. Standard library paths are hardcoded into some of the libraries. I
>
packages/_usrp_prims.so
/usr/lib64/python2.4/site-packages/usrp_dbid.py
/usr/lib64/python2.4/site-packages/usrp_fpga_regs.py
/usr/lib64/python2.4/site-packages/usrp_prims.py
Would it be possible to move these to a separate subfolder?
Cheers,
--
Trond Danielsen
__
w
what you think. I have tried to give an overview of what information is
available on the wiki, while keeping the size of the front page to a
reasonable size to avoid scrolling.
I haven't had the time yet to look at the gnu.org website, but I've got
it on my TODO list.
--
ere are no hard
real-time requirements, as the demodulated data is not intended to be
displayed in real time. I have read about the new mblock, but it
seemed overkill for my application.
Hope I managed to present my question clearly.
--
Trond Danielsen
s (practical, not the shiny ones on gnu.org)
- Suggested readings.
- List of talks, presentations and videos.
* Contribute (already on gnu.org)
Puh, thats about it (concider this a note-to-self(r) and others :) )
At last, thank you for all the feedback. I hope that you find this
useful and
2007/3/3, Don Ward <[EMAIL PROTECTED]>:
From: "Trond Danielsen" <[EMAIL PROTECTED]>
>> I agree that the current WikiStart page isn't beautiful, however it
>> does handle what I assume are the first 95% of the questions: where's
>> the code
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