Thnx Marcus..u mean that if i change the sample rate of USRP sink
block in the properties dialog box then the bandwidth will be equal to
the changed sample rate??
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Hi ,
Can anyone kindly tell that how i can vary the bandwidth of my
transmitted signal in GRC??I am using B210 which has a instantaneous
bandwidth of 56MHz..
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m not understanding fully..
On Sun, Aug 17, 2014 at 10:45 PM, Ali wrote:
> Thanx Marcus and Tom fr ur explanations. I will read further and ask any
> questions if i have.
>
>
>
>
> Tom Rondeau wrote:
>
>
> On Sun, Aug 17, 2014 at 11:04 AM, jason sam wrote:
>>
&g
maginary part. What
> Marcus showed you was an update to the blocks to label them better as Re{}
> and Im{}. You're just running an older version where the data is simply
> labeled Data 0 (the real part) and Data 1 (the imaginary part).
>
> Tom
>
>
>
>>
>> On 17.0
imaginary part.
>
> Greetings,
> Marcus
> [1] http://i.imgur.com/kfXiRsX.png
>
> On 17.07.2014 07:49, jason sam wrote:
>> Hi all,
>> When a complex signal is given to QT time sink block it displays the
>> signal in blue color.There is a red line also at zero level.
Hi all,
When a complex signal is given to QT time sink block it displays the
signal in blue color.There is a red line also at zero level.is this
the DC component??And it doesn't display the imaginary part as in WX
Scope sink block?
Regards,
Ali
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Thanx got it!
On Thu, Jul 10, 2014 at 6:22 PM, Tom Rondeau wrote:
> On Wed, Jul 9, 2014 at 12:30 AM, jason sam wrote:
>>
>> Hi all,
>> In WX GUI time sink when we roll the mouse over the plot we can change
>> the range of y-axis and x-axis but in QT GUI time sink it
07/09/2014 06:30 AM, jason sam wrote:
>> Hi all,
>> In WX GUI time sink when we roll the mouse over the plot we can change
>> the range of y-axis and x-axis but in QT GUI time sink it is not
>> changing in this way.We can set the range for y-axis in block
>> parameter
Hi all,
In WX GUI time sink when we roll the mouse over the plot we can change
the range of y-axis and x-axis but in QT GUI time sink it is not
changing in this way.We can set the range for y-axis in block
parameters but how can I change the x-axis min and max values for QT
GUI time sink block duri
that you, based on
>> your communication engineering skills, will need to decide yourself.
>>
>> Sincerely,
>> Marcus Müller
>>
>> [1]http://gnuradio.org/doc/doxygen/classgr_1_1analog_1_1frequency__modulator__fc.html#a9c252eeb8c9daf6ccd50427d3bc55bd3
>>
>> On
and baud_rate
in the formulas?
On Fri, Jul 4, 2014 at 9:14 PM, Marcus Müller wrote:
> Not at all, because for these blocks, symbols have no meaning.
>
> On 04.07.2014 17:38, jason sam wrote:
>> Yes Marcus,u are r right and i am also asking about such blocks like
>> the FM Mod b
es per symbol etc are
> concepts that are meaningful only for certain blocks, and thus there is
> no sense in setting those globally.
>
> Greetings,
> Marcus
> On 04.07.2014 08:33, jason sam wrote:
>> Thanx Martin,but where in GRC we can set samples per symbol??I am new
Thanx Martin,but where in GRC we can set samples per symbol??I am new
to this so i don't know yet...
Ali
On Tue, Jul 1, 2014 at 2:18 PM, Martin Braun wrote:
> On 06/26/2014 11:06 AM, jason sam wrote:
>> I am bit confused b/w the two terms.I have read some material and i
>&g
Hi,
I am bit confused b/w the two terms.I have read some material and i
got the following relationship b/w the two:
samples/second =samples/symbol * symbols/second
And i think in GRC samples per symbol is 1(plz correct if i am
wrong).So sample rate becomes equal to baud rate(symbols/second)??
Regar
Hi,
I have written a python code(wxgui.py) for a simple GUI using
wxPython.There is a button in it and by pressing that button i am
executing another python file.It's working fine and i am able to call
any python file,but when i try to execute the python file created by
GRC(uhd_fft.py) i get the fo
ok
On Thu, Jun 5, 2014 at 2:03 PM, Marcus Müller
wrote:
> You're not using Cmake properly. Please refer to the source build guide
> in the wiki.
>
> Greetings,
> Marcus
> On 05.06.2014 10:26, jason sam wrote:
> > I tried to do it but got the following
arameters.
>
> Greetings,
> Marcus
>
> On 05.06.2014 09:58, jason sam wrote:
>
> Hi All,
> I am doing simple wide band FM..The flowgraph is as attached..When i
> execute it i am getting following error:
>
> gr_remez: insufficient extremals -- cannot continue
> Trace
g like your audio device being
> inaccessible and is really more of a configuration problem on your side :)
>
> Greetings,
> Marcus
>
> On 05.06.2014 09:59, jason sam wrote:
> > '.grc' file is not available,only '.py' is available.
> >
> >
>
gen, pass -DENABLE_DOXYGEN=On to the cmake call
>
> Greetings,
> Marcus
>
>
> On 05.06.2014 05:14, jason sam wrote:
>
> How can i configure GNU Radio Companion 3.7.3 with Doxygen so taht i can
> view the blocks' documentation from inside GRC?I have Doxygen installed but
What will happen if i exceed this limit?Actually with this amplitude the TX
power is very less...Is there any other solution?
On Thu, Jun 5, 2014 at 12:54 PM, Martin Braun
wrote:
> On 05.06.2014 05:17, jason sam wrote:
>
>> Hi Tom,
>> Can you tell what is the constr
'.grc' file is not available,only '.py' is available.
On Thu, Jun 5, 2014 at 12:56 PM, jason sam wrote:
> If i run it in terminal even then its not running.
>
>
> On Thu, Jun 5, 2014 at 12:52 PM, Martin Braun
> wrote:
>
>> On 05.06.2014 06:28, jason
Hi All,
I am doing simple wide band FM..The flowgraph is as attached..When i
execute it i am getting following error:
gr_remez: insufficient extremals -- cannot continue
Traceback (most recent call last):
File "/home/ali/Desktop/top_block.py", line 109, in
tb = top_block()
File "/home/ali
If i run it in terminal even then its not running.
On Thu, Jun 5, 2014 at 12:52 PM, Martin Braun
wrote:
> On 05.06.2014 06:28, jason sam wrote:
>
>> Hi All,
>> When i try to run any of built in examples (in .py form) with GRC,i get
>> the following error:
>>
>
Hi All,
When i try to run any of built in examples (in .py form) with GRC,i get the
following error:
Error:
/usr/local/share/gnuradio/examples/audio/audio_fft.py:1:1:FATAL:PARSER:ERR_DOCUMENT_EMPTY:
Start tag expected, '<' not found
An example of such file is as attached.
#!/usr/bin/python
#!/usr
How can i configure GNU Radio Companion 3.7.3 with Doxygen so taht i can
view the blocks' documentation from inside GRC?I have Doxygen installed but
its not configured with GRC.
Regards,
Ali
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https
d hitting or exceeding 1.00 (even just on the peak)
> can cause problems. Also a physical transmitter might have only 12 or 16
> bits fixed point dynamic range, so there may be a minimum signal amplitude
> as well.
>
> -- Tom, N5EG
>
>
>
>
> On Wed, Jun 4, 2014 at 7:33
Hi,
In GRC is it necessary that we give a signal to any sink having an
amplitude greater than 1?
Regards,
Ali
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main Python program.
>
> Greetings,
> Marcus
>
>
> On 27.05.2014 11:37, jason sam wrote:
>
> Hi,
> If i make a GUI in python language and i want to call a GRC file from that
> GUI by pressing a button or something,then it's possibl
Hi,
If i make a GUI in python language and i want to call a GRC file from that
GUI by pressing a button or something,then it's possible to call a file
like that??
Regards,
Ali
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let the companion generate a python file out of them and
> execute that.
> You tried to load such a python file like it was a GRC file; this can't
> work.
>
> Greetings,
> Marcus
>
>
> On 26.05.2014 08:42, jason sam wrote:
>
> The code is as attached.
>
>
t; Marcus
>
> [1] It outputs a signal, which has a momentary phase increase that is
> proportional to sensitivity and input amplitude
> [2] d_phase = d_phase + d_sensitivity * in[i];
> On 26.05.2014 06:25, jason sam wrote:
> > Hi Marcus,
> > I have seen the doxygen documentati
The code is as attached.
On Mon, May 26, 2014 at 9:42 AM, jason sam wrote:
> When i execute a GRC file i get the following error.Any info about that?
> Regards,
> Ali
>
noise
Description: Binary data
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When i execute a GRC file i get the following error.Any info about that?
Regards,
Ali
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"device args" parameter is not in the UHD USRP source/sink block?There is
only 'Device addr'
On Fri, May 23, 2014 at 9:39 PM, Marcus D. Leech wrote:
> On 05/23/2014 12:23 PM, raf raf wrote:
>
> Hello All Gnu Radio user,
>
> To use a 2 TX, I want to change a clock rate to an accepted one, und
Correction not 50 Hz but whatever the rate is after interpolation
On Sat, May 24, 2014 at 12:23 PM, jason sam wrote:
> Another question related to my flowgraph that when i use the' Frequency
> Mod' block...then it will take the center frequency as 50Hz(the freq of the
&g
In the device parameter write 'set_master_clock_rate=30e6'
On Fri, May 23, 2014 at 9:08 PM, raf raf wrote:
> Hello All Gnu Radio user,
>
> To use a 2 TX, I want to change a clock rate to an accepted one, under
> 30.72 MHz. I use the API with uhd_usrp_probe and it works only for this
> command.
sine15k.wav
>
> Some C code to generate audio files at other frequencies.
>
> http://www.w6rz.net/sine.c
>
> Ron
>
>
>
> On 5/22/2014 9:26 PM, jason sam wrote:
>
>> Hi,
>> I have made the flowgraph as attached..It is showing the modulation in
>> sc
Actually i think the problem is that i have very low sample rate according
to the 1024 FFT..
On Thu, May 15, 2014 at 7:38 PM, jason sam wrote:
>
>
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I am using GNU Radio Companion 3.7.3...when i set the frequency of my
signal source to low values(in Hz or kHz),i get no signal on my scope or
fft sink??
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USRP implies transmitting on
> one connector (TX/RX) and receiving on the other (RX2).
>
> Half duplex means you never TX and RX simultaneously.
>
> Matt
>
>
> On Wed, May 14, 2014 at 11:09 AM, jason sam wrote:
>
>>
>> I am confused about the terms full duplex and ha
I am confused about the terms full duplex and half duplex in context of
USRP...If i am using two antennas attached on the same channel on B210(one
on TX/RX and other on RX2).I am Rxing through one antenna and
retransmitting the signal with the other antenna..Am i operating on full
duplex or half du
I am confused about the sample rate in GRC...if i am RXing a signal by USRP
B210 at 2.4 GHz then the sample rate should be 4.8GHz??But USRP B210 uses a
direct conversion RX and shifts the signal to 0Hz,so what should be the
criteria for setting the sample rate?
Another option could be ton set it do
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