Hi All,
I recently upgraded to Fedora 11 and gnuradio 3.2.2 installed from the
stable source tar.
After successfully building the "gr-howto-write-a-block-3.2 project" I get
the error below while running "make check"
Note that I have to run ./bootstrap to be able to build the example. If
don't do
Hi Joreen,
Listening to GSM broadcast channles and initaiating a RACH procedure with a
GSM handset using the USRP is possible.
Take a loook to http://wiki.thc.org/gsm . It may help.
++
On Thu, Aug 21, 2008 at 1:56 AM, Joreen Tan <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I am totally new to gnuradio
<[EMAIL PROTECTED]>wrote:
> -BEGIN PGP SIGNED MESSAGE-
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>
> On Aug 18, 2008, at 9:10 AM, Wireless Monster wrote:
>
>> Is any modification needed to the USRP board to use an external clock
>> generator instead of the on board 64MHz one?
>>
&
Hi All,
Is any modification needed to the USRP board to use an external clock
generator instead of the on board 64MHz one?
Thanks!
[WM]
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same clock, the
frequency the offset gets compensated on the Rx signal so it can not be
measured... (???)
Anyone has any clue on how to measure it dynamically at the code startup?
Thanks in advance!
[WM]
On Wed, Jul 23, 2008 at 6:57 PM, Chris Stankevitz <[EMAIL PROTECTED]>wrote:
> Wi
r.
>>
>> Konstantin
>>
>> On Wed, Jul 23, 2008 at 4:06 PM, Brian Padalino <[EMAIL PROTECTED]>
>> wrote:
>>>
>>> On Wed, Jul 23, 2008 at 5:30 PM, Wireless Monster
>>> <[EMAIL PROTECTED]> wrote:
>>> > Hi All,
>>&
Hi All,
I am having lots of issues with the USRP 64MHz (20ppm) on board oscillator
which does not allow me to get exact and constant RF frequencies out of the
RFX900 board. I can not really fix that in SW so I was thinking about
replacing the 64MHz crystal with a more precise one. Has anybody a
s
Hi again,
Can I assume the following? : because I am using the USRP, if when adding
the printf I do not get any under-run everthing is OK (i.e. the behaviour is
the same with and without the printf's) ?
Thanks!
On Sun, Jul 6, 2008 at 1:21 PM, Wireless Monster <[EMAIL PROTECTED]>
w
Hi All,
Does anybody know if adding printf's for debuging while running a gnuradio
application + usrp can "break" the real time? or is the printf a low
priority task that will only be executed if there is enough CPU?
Thanks!
[WM]
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I understand. Thank you!
On Wed, Jun 4, 2008 at 1:22 PM, Eric Blossom <[EMAIL PROTECTED]> wrote:
> On Wed, Jun 04, 2008 at 12:30:49PM -0400, Wireless Monster wrote:
> > Hi all,
> >
> > Is it possible to use the "gr_interp_fir_filter_fff" block directly
>
Hi all,
Is it possible to use the "gr_interp_fir_filter_fff" block directly inside a
new block I am building in C++? Any example available on how to do it?
Thanks for your help,
[WM]
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Yes I meant simultaneously... What is the main reason for this limitation?
Is possible to Tx on port 1 and Rx on port 2 simultaneously?
Thanks for your help!
On Fri, May 2, 2008 at 10:15 AM, Eric Blossom <[EMAIL PROTECTED]> wrote:
> On Fri, May 02, 2008 at 09:48:40AM -0400, Wireles
Hi all,
Does anybody know if it is possible to Tx and Rx at the same time using the
RX/TX connector on the RFX900 board ? (i.e using only one connector)
Thank you!
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Hi all,
Does anybody know how to calculate the delay introduced by the filter used
by the rational_resampler_ccc block (formula or a way to measure it, as the
parameters are fixed)
Thanks for your help!
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Hi All,
Is there any gnuradio block that will allow to set the last samples of the
input signal to zero?
ie. somenthing like...
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Hi all,
Is there a way to reduce the gain of the RFX900 board?
Using the "self.subdev.set_gain(self.subdev.gain_range()[1]/Att)" function
does not seem to change anything.
Thanks!
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PROTECTED]> wrote:
> On Fri, Apr 18, 2008 at 07:38:15PM -0400, Wireless Monster wrote:
> > After doing some experiments I came out with another more important
> > problem...
> >
> > Instead of my previous frequency that gave some residual, I tried the
> > integer freq
q = 0
r.inverted = False
The issue is that on the spectrum analyzer I get the signal centered at 930
and not 926M.
Any clue why the r.dxc offsset is not working? I check the 'tune' function
and it should do...
Thanks!
On Fri, Apr 18, 2008 at 3:38 PM, Wireless Monster <
[EMAIL PROTEC
Hi All,
I am trying to send a GSM modulated signal using the USRP and the RFX900
board using the 'tune' function as in the provided usrp examples:
r = self.u.tune(self.subdev._which, self.subdev, target_freq)
The desired frequency is 925.6MHz, and I am getting a -381.47m
residual_frequency as sh
Hi Matt,
Thank you for your help.
Can you point me to the board schematics to see where I should 'cut' :)
Rgds,
On Fri, Apr 18, 2008 at 12:44 PM, Matt Ettus <[EMAIL PROTECTED]> wrote:
> Wireless Monster wrote:
>
> > Hi all,
> >
> > Does anybody kn
Hi all,
Does anybody know if the ISM filter on the RFX900 board affects both the Rx
and Tx paths or only the Rx?
Is there a easy way to disable it?
Thanks for your help!
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Thank Martin,
However I was thinking in a way to measure the load of each gnuradio block.
Any clue?
Rgds,
On Thu, Apr 17, 2008 at 12:00 PM, Martin Braun <[EMAIL PROTECTED]>
wrote:
> On Thu, Apr 17, 2008 at 10:58:31AM -0400, Wireless Monster wrote:
> > Hi all,
> >
> >
, Brian Padalino <[EMAIL PROTECTED]>
wrote:
> On Thu, Apr 17, 2008 at 11:11 AM, Wireless Monster
> <[EMAIL PROTECTED]> wrote:
> > Brian, Dan,
> >
> > It is working now. Thanks again for your help.
> >
> > One more basic "signal processing ques
er_ccc, vs.
rational_resampler_ccf) ?
Regarding Ed, question on the LPF after the resampler, I am not sure... it
does not seems to be needed... any clue?
Thanks!
On Tue, Apr 15, 2008 at 4:09 PM, Wireless Monster <
[EMAIL PROTECTED]> wrote:
> Brian, Dan,
> Thank you very much for your help. It is clear now
Hi all,
I am writting some new code to the USRP board using gnuradio and sometimes I
am getting the "uUuU" message, which I understand means that I am not
feeding the usrp.sink module fast enough (right?)
Is there a way to check what is the current CPU load?
Thank you!
__
Brian, Dan,
Thank you very much for your help. It is clear now!
Rgds,
On Tue, Apr 15, 2008 at 4:05 PM, Dan Halperin <[EMAIL PROTECTED]>
wrote:
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>
> At hat point can I send the samples (for example from a file with
> > > gr.file_source) and guaran
...I understand...
so... What needs to be done to assure data will be treated as a 270.833Ks/s
rate?
Thanks!
On Tue, Apr 15, 2008 at 3:31 PM, Brian Padalino <[EMAIL PROTECTED]> wrote:
> On Tue, Apr 15, 2008 at 3:14 PM, Wireless Monster
> <[EMAIL PROTECTED]> wrote:
> >
there will be enough samples to process)
Thank you again for your help!
On Mon, Apr 14, 2008 at 8:55 PM, Brian Padalino <[EMAIL PROTECTED]> wrote:
> On Mon, Apr 14, 2008 at 8:03 PM, Wireless Monster
> <[EMAIL PROTECTED]> wrote:
> > Hi All,
> >
> > I am new
Hi All,
I am new to gnuradio and the USRP board and I have a basic question.
I want to transmit a GSM signal. Once It is encoded I have a 270833.333
symbols/sec signal. Then, it is up-converted (x8) and GMSK filtered, so I
get a 2.1666 Ms/s complex signal.
Now the question: How to adapt this ra
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