[Discuss-gnuradio] Re: list comprehesnion in variable doesnt work

2009-05-31 Thread feldmaus
Josh Blum joshknows.com> writes: > > So, take my advice from my previous email, and encapsulate this code in > a custom grc block wrapper, and you will get exactly what you are > looking for. > I forgot to wrote, that there is still a bug, allthough I got it to work. regards markus ___

[Discuss-gnuradio] Re: list comprehesnion in variable doesnt work

2009-05-31 Thread feldmaus
Josh Blum joshknows.com> writes: > I bet it works very well actually. > > variable1 = open(file) > variable2 = variable1.write(xxx) > variable3 = variable1.close() > > GRC knows that variable2 and variable3 depend on variable1, but > variable2 and variable3 are not dependent upon other, so the

[Discuss-gnuradio] Re: list comprehesnion in variable doesnt work

2009-05-30 Thread feldmaus
Eric Blossom comsec.com> writes: > > On Sat, May 30, 2009 at 10:55:50AM +, feldmaus wrote: > > Hi All again, > > > > list comprehension doesnt work in variables, for example: > > [print(i) for i in range(3)] > > "print" is a statement, no

[Discuss-gnuradio] Re: analysis_filterbank question

2009-05-30 Thread feldmaus
Eric Blossom comsec.com> writes: > > On Mon, Jan 05, 2009 at 06:52:56PM +0200, Sebastiaan Heunis wrote: > > Unlike what the code would lead you to believe, you have to provide > the filter taps. See gr-pager/src/usrp_flex_band.py for a working example. > I found some API Docu about the analys

[Discuss-gnuradio] list comprehesnion in variable doesnt work

2009-05-30 Thread feldmaus
Hi All again, list comprehension doesnt work in variables, for example: [print(i) for i in range(3)] or variable_2 = file('../../../tabs.dat','w') ([variable_2.write(str(i)) for i in [1,2]] is True) &\ (variable_2.close() is True) doesnt work. Regards Markus

[Discuss-gnuradio] how to set up a variable after tb.Run()

2009-05-30 Thread feldmaus
Hi All, it would be nice to have a possibility in grc to set up a variable which comes to the end. Further on i have some wishes to grc: +it would be nice to send strings to a filesink for example with pickle. +to set up the sequence of the variables Also, there is a bug: i made a variable_0: se

[Discuss-gnuradio] Re: maximum of bandwidth and negative frequencies

2009-05-30 Thread feldmaus
Karthik gmail.com> writes: > > On Fri, May 29, 2009 at 6:50 AM, feldmaus gmx.de> wrote: > > I used a band_pass filter in the Analysis Filterbank, but my signal goes down by > > ~1.6MHz. > > I am not sure why ? > > If you are tuning your usrp to 1 MHz and hav

[Discuss-gnuradio] maximum of bandwidth and negative frequencies

2009-05-29 Thread feldmaus
Hi All, I am using a usrp1, and an Analysis Filterbank with 3 bands. My IF is 1MHz. The decimation is 64, therefore i get 64MHz/64=1MHz bandwidth. Therefore i should see signals from 1MHz to 2MHz. I used a band_pass filter in the Analysis Filterbank, but my signal goes down by ~1.6MHz. I am not s

[Discuss-gnuradio] unaesthetic connections in GRC

2009-05-27 Thread feldmaus
HI All and thanks for your posts before, .-) in my GRC schematic there are some unaesthetic connections, which goes through some of my elements, therefore i want to use the copy Element. Is this ok ? Or what Element should i use to let the connection goe another way ? Regards Markus _

[Discuss-gnuradio] Re: file_sink does not save all ?

2009-05-26 Thread feldmaus
Eric Blossom comsec.com> writes: > > It does save all of the samples that it's seen. GNU Radio does not > process everything "instantaneously". Since you're not causing the > graph to stop synchronously, say using gr.head, or by providing input > from a file, the graph is stopping at the first

[Discuss-gnuradio] Re: file_sink does not save all ?

2009-05-25 Thread feldmaus
Eric Blossom comsec.com> writes: > What you are seeing is the expected behavior. > Thanks for your Answer, so you mean this is the normal behaviour, that it doesnt have the same count of samples at all file_sinks ? regards Markus ___ Discuss-gnur

[Discuss-gnuradio] Re: file_sink does not save all ?

2009-05-25 Thread feldmaus
Martin Braun int.uni-karlsruhe.de> writes: > > On Mon, May 25, 2009 at 11:02:20AM +, feldmaus wrote: > > this is a Bug report for the Developers. > > I am using the file_sink after an Analysis Filterbank, wich parts > > my Bandwidth into 3 bands. So i should ge

[Discuss-gnuradio] file_sink does not save all ?

2009-05-25 Thread feldmaus
Hi All, this is a Bug report for the Developers. I am using the file_sink after an Analysis Filterbank, wich parts my Bandwidth into 3 bands. So i should get the same count of samples in all 3 bands, but this is not the norm. Sometimes i get to few samples for some of my bands. For example one fi

[Discuss-gnuradio] different values from and

2009-05-25 Thread feldmaus
Hi All, i noticed that i got different values for a sinus signal 200kHz for this 2 example Programms included in Gnuradio. I set the ref_scale and ref_level to the same value. I am using a usrp1 and LF-RX. Any Idea why ? I also noticed that the signal goes down as fair as the signal veer away f

[Discuss-gnuradio] Re: code changed and results in error of my programm

2009-05-25 Thread feldmaus
I still got some more errors: i defined this elements: self._variable_text_box_0_control = grc_wxgui.forms.text_box( #window=self.GetWin(), callback=self.set_decim, label='decim', value=

[Discuss-gnuradio] Re: code changed and results in error of my programm

2009-05-25 Thread feldmaus
Josh Blum joshknows.com> writes: > > The callback controls module in grc was replaced with the forms module > http://gnuradio.org/trac/browser/gnuradio/trunk/grc/src/grc_gnuradio/wxgui/forms > > The idea is that this forms module will get merged into wxgui and used > by wxgui applications oth

[Discuss-gnuradio] Re: unknown attenuation after analysis filterbank

2009-05-16 Thread feldmaus
Brian Padalino schrieb: So you are looking at 1MHz of spectrum with a sample rate of 1Msps complex centered at 1MHz coming in from the USRP? Or do you receive a complex stream directly from the USRP at baseband? I am looking from 1MHz to 2MHz, therefore i set up the frequency in the Usrp to 1M

[Discuss-gnuradio] Re: tcp and udp server

2009-05-16 Thread feldmaus
Firas Abbas schrieb: See this nice python networking tutorial : http://heather.cs.ucdavis.edu/~matloff/Python/PyNet.pdf Thanks for the python tutorials. But therefore i need a gnuradio tcp server. As i know there is only a udp server(in grc). Would be nice to see this in the future. regard

[Discuss-gnuradio] tcp and udp server

2009-05-15 Thread feldmaus
Hi All, i am read something about "sending data over tcp". as i can see in grc there is only an udp sink. Is there still a tcp sink ? regards markus ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/dis

[Discuss-gnuradio] unknown attenuation after analysis filterbank

2009-05-15 Thread feldmaus
Hi Gnuradio folks, i am analysing the spectrum from 1MHz to 2Mhz. I splitted this Spectrum into 3 parts: 1MHz - 1,333MHz 1,333MHz - 1,666MHz 1,666MHz - 2MHz Therefore i used the Analysis Filterbank. Because i am searching for si function in the time domain as a response of a peak in the frequency

[Discuss-gnuradio] Re: code changed and results in error of my programm

2009-05-15 Thread feldmaus
feldmaus gmx.de> writes: > > What is the new name ? > Forget this message. I do not need this Program anymore. Regards Markus ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] code changed and results in error of my programm

2009-05-15 Thread feldmaus
Hi All, one of my gnuradio programms do not work anymore, because some changed the code. My error Message is: self._variable_text_box_0_control = grc_wxgui.text_box_control( AttributeError: 'module' object has no attribute 'text_box_control' What is the new name ? regards Markus

[Discuss-gnuradio] Re: save date and value to an rotating file

2009-05-15 Thread feldmaus
Josh Blum joshknows.com> writes: > You can do it all in python by making a hier block, and using gr message > sinks and sources. See pkt.py as an example: > > http://gnuradio.org/trac/browser/gnuradio/trunk/gnuradio-core/src/python/gnuradio/blks2impl Thanks for your answer. Can this block be

[Discuss-gnuradio] Re: save date and value to an rotating file

2009-05-14 Thread feldmaus
Jason Uher gmail.com> writes: > From your questions on the board I'm starting to wonder if your > application isn't complex enough that it would warrant being built in > strict python rather than GRC, it would certainly make your life > easier in terms of doing things like this: > Yes, my applic

[Discuss-gnuradio] Re: change size of scrollarea of grc

2009-05-14 Thread feldmaus
feldmaus gmx.de> writes: > > Hi Gnuradio folks, > > how can i change the scrollarea size of grc ? I mean, ho can i change the size to greater than 2048x2048 ? ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http:

[Discuss-gnuradio] change size of scrollarea of grc

2009-05-14 Thread feldmaus
Hi Gnuradio folks, :-) how can i change the scrollarea size of grc ? It is a little bit to small for my application. :-) regards Markus ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Re: sample and hold Ctrl Input

2009-05-11 Thread feldmaus
Is there any Source i can connect to the Ctrl Sample and Hold ? A normal Signal Source(float) doesnt fit the Sink(Ctrl S&H). Any Ideas ? regards Markus ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/d

[Discuss-gnuradio] sample and hold Ctrl Input

2009-05-11 Thread feldmaus
Hi All, i am using the Sample and Hold Element, but there seems to be some needed conversion for the Ctrl Input. my source uses a vector which is 4 times bigger than the ctrl input sink. My source send only 0 or 1, so it should be no problem to lessen this vector. I didn't find any examples. Is t

[Discuss-gnuradio] Re: debug freezing

2009-05-08 Thread feldmaus
Josh Blum joshknows.com> writes: > Also, add a few printfs to the work method,... Do you mean it is better to make my own signal processing block to print ? As i understand in, http://www.gnu.org/software/gnuradio/doc/howto-write-a-block.html the only way to make a signal processing block i

[Discuss-gnuradio] grc bug with deleting elements

2009-05-07 Thread feldmaus
Hi All, i compiled today(2009-05-07) the gnuradio from trunk(svn). The grc seems buggy. if i want to delete elements by pressing the del button, i have to press some more times the del button. regards markus ___ Discuss-gnuradio mailing list Discuss-

[Discuss-gnuradio] Re: debug freezing

2009-05-07 Thread feldmaus
Josh Blum joshknows.com> writes: > Do you think that it might be possible for peak detector to output > always the same number at "some frequencies"? I think not. The Peakdetector(with TH factor Rise and Fall) works and the Peakdetector2 works not. Maybe there are some bugs in the peakdetector2

[Discuss-gnuradio] Re: debug freezing

2009-04-17 Thread feldmaus
Josh Blum joshknows.com> writes: > > peak detector can output 1 or 0. What is it outputting? > I get 1 and 0 when it is not freezed. I uploaded a screenshot, but i am not sure whether this works, http://img228.imageshack.us/my.php?image=peakdetected.jpg There you can see that i get 1 at a peak

[Discuss-gnuradio] Re: debug freezing

2009-04-16 Thread feldmaus
Josh Blum joshknows.com> writes: > > That says that throttling is not your issue. You are probably correct to > think that the peak detect block stopped outputting samples. -Josh > Is this because i did not configure the Peak-Detector correctly, or because it is a bug ? Regards Markus ___

[Discuss-gnuradio] explanation to ewma and average calculation

2009-04-16 Thread feldmaus
Hi All, i am searching for some more detailed explanation to the ewma and average calculations in gnuradio. There is something written at, /usr/local/share/doc/gnuradio-3.2svn/html/classgr__peak__detector2__fb.html So i think the average will only be calculated when the threshold does find somethi

[Discuss-gnuradio] Re: debug freezing

2009-04-16 Thread feldmaus
Dimitris Symeonidis gmail.com> writes: > > > Have you removed ALL gr.throttle blocks from your flowgraph? I tried some combinations without any success, so i think it's a bug and i have to wait for until it is solved. The throttle element doesn't change anything for me. Does any developer need

[Discuss-gnuradio] Re: debug freezing

2009-04-14 Thread feldmaus
feldmaus gmx.de> writes: > > Hi All, > > i still read in the gnuradio documentation, that we can prevent > freezing graphical elements by inserting the throttle element before, > but how can i locate which element is freezed ? > Is there any hlp in or python modul

[Discuss-gnuradio] debug freezing

2009-04-14 Thread feldmaus
Hi All, i still read in the gnuradio documentation, that we can prevent freezing graphical elements by inserting the throttle element before, but how can i locate which element is freezed ? Is there any hlp in or python modules which can be used for tuning/debugging ? I inserted for every elemen

[Discuss-gnuradio] Re: max throughput USB 2.0

2009-04-13 Thread feldmaus
Firas Abbas yahoo.com> writes: > > > Hi, > > > On Mon, 4/13/09, feldmaus gmx.de> wrote: > > > > you are right, but why are we calculating with 32MByte/s > > and not with 60MByte/s or something else ? > > Did you saw USRP FAQ? Always check

[Discuss-gnuradio] Re: max throughput USB 2.0

2009-04-13 Thread feldmaus
Vincenzo Pellegrini gmail.com> writes: > > > Maximum sustained throughput that we have achieved so far, given our chipsets and the USRP's cypress usb interfaceis 32 MB/sec that yields, at 16 bit sample resolution Hi Vincenzo, you are right, but why are we calculating with 32MByte/s and not wit

[Discuss-gnuradio] max throughput USB 2.0

2009-04-12 Thread feldmaus
Hi All, i read the FAQ and the Documentation, but i got some questions about the maximum throughput. For the ADC which has 64MHz we get 32MHz if we follow nyquist criteria. The Documentation tell us the maximum speed results in 32MByte/s. How do you come from 32MHz to 32Mbyte/s ? I believe this

[Discuss-gnuradio] Re: help for peak detector

2009-04-07 Thread feldmaus
Markus Feldmann gmx.de> writes: > > Therefore i have some questions: > To 2.) What allowed values for ? > And what does this mean ? Which unit ? > What is Alpha, and which are allowed values ? > If the peak detector gets a peak, what does it spit > out ? >

[Discuss-gnuradio] [howto] read binary manually

2009-04-06 Thread feldmaus
Hi All, for those who want to read the binary value by hand, the binary value is saved as 2*32bit value. 32bit --> I and 32bit --> Q And are saved one after another, I1 Q1 I2 Q2 I3 Q3 I4 Q4 ... No we look at I1 and describe how it will be computed by hand: For example: BIN: 100

[Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit

2009-04-06 Thread feldmaus
Eric Blossom comsec.com> writes: > > http://www.amazon.com/Understanding-Digital-Signal-Processing-2nd/dp/0131089897/ref=sr_1_1?ie=UTF8&s=books&qid=1238774302&sr=1-1 At this time i am doing my diploma and have not much money, so i have to thing about where my money goes. But i will still buy so

[Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit

2009-04-03 Thread feldmaus
Patrick Strasser tugraz.at> writes: > > Markus Feldmann wrote am 2009-03-30 17:54: > > For example, is this ONE sample ? > >24 + 5i > > Yes. > > > The left is a 32bit I part and the right is the Q part ? > > Yes! The I(nphase)-part is the real component of the complex number, the > Q(ua

[Discuss-gnuradio] some posts are missing in gmane.org

2009-04-02 Thread feldmaus
Hi All, i only want to let you know, that some of the mails i posted here are not shown in gmane.org, but in my newsreader thunderbird(debian). Maybe there is a problem ? Regards Markus ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http:

[Discuss-gnuradio] Re: No module named gnuradio

2009-04-01 Thread feldmaus
Jay Kumar ruby-forum.com> writes: > >>> import sys > >>> sys.path > ['', '/usr/local/lib/python2.4/site-packages', > '/usr/local/lib/python24.zip', '/usr/local/lib/python2.4', > '/usr/local/lib/python2.4/plat-linux2', > '/usr/local/lib/python2.4/lib-tk', > '/usr/local/lib/python2.4/lib-dynload',

[Discuss-gnuradio] question to I and Q routing

2009-04-01 Thread feldmaus
Hi All, i have a signal generator which is only connected to 1 SMA connector at the LFRX daughterboard. In the gnuradio documentation is written: "Each of the 4 ADC's can be routed to either of I or the Q input of any of the 4 DDC's." But if i store the data coming from the usrp to disk, i have g

[Discuss-gnuradio] Re: manually dc offset useful

2009-04-01 Thread feldmaus
feldmaus gmx.de> writes: > Any comments ? > I also noticed the dc offset, which is needed, changes from signal generator to signal generator. Could this be true ? How to avoid this ? Regards Markus ___ Discuss-gnuradio mailing lis

[Discuss-gnuradio] Re: manually dc offset useful

2009-04-01 Thread feldmaus
feldmaus gmx.de> writes: > Any comments ? > I noticed that the dc offset changes if i change the frequency forward and then back to last frequency. Will the automatic dc loop enabled if i change the frequency ? Regards Markus __

[Discuss-gnuradio] Re: usrp1 harmonic issue

2009-04-01 Thread feldmaus
Eric Blossom comsec.com> writes: > To disable automatic ADC control on all ADC's: > > u.set_dc_offset_cl_enable(0x0, 0xf) > > Then set the offset that you want for each ADC using: > > u.set_adc_offset(0, offset0) > u.set_adc_offset(1, offset1) > u.set_adc_offset(2, offset2) > u.set_a

[Discuss-gnuradio] manually dc offset useful

2009-03-31 Thread feldmaus
Hi All, At this time i am thinking is the dc offset, which i tried to set up for my db LFRX, useful ? Or is it useful to disable the automatically dc offset loop ? The dc offset changes every time depending on the temperatur and the decimation and maybe other factors !? So is the use of LFRX use

[Discuss-gnuradio] Re: usrp1 harmonic issue

2009-03-31 Thread feldmaus
Eric Blossom comsec.com> writes: > > /*! >* \brief Enable/disable automatic DC offset removal control loop in FPGA >* >* \param bits which control loops to enable >* \param mask which \p bits to pay attention to >* >* If the corresponding bit is set, enable the automa

[Discuss-gnuradio] scrollarea, tabwindow, panels for grc_wxgui.top_block_gui

2009-03-30 Thread feldmaus
Hi All, i want to add some comfortable elements like a scrollarea, tabwindow and panels for example. Is there any example for this ? I watched the pydoc for this modules, but didn't go further. Any hints ? Or do i have to use for more flexibility ? Regards Markus

[Discuss-gnuradio] Re: usrp1 harmonic issue

2009-03-30 Thread feldmaus
feldmaus gmx.de> writes: > Is there any example which corrects the dc offset ? > So that we see, which commands are up to date. I think we have first to calculate the dc offset? And the to adjust ? To calculate the dc offset we can use: usrp_cal_dc_offset: usage: usrp_cal_dc_offset

[Discuss-gnuradio] Re: usrp1 harmonic issue

2009-03-30 Thread feldmaus
Matt Ettus ettus.com> writes: > > > You are not seeing harmonics. You are seeing DC offset, which you have > not corrected for. Is there any example which corrects the dc offset ? So that we see, which commands are up to date. Regards Markus _

[Discuss-gnuradio] set value of variable slider

2009-03-30 Thread feldmaus
Hi Gnuradio People, i tried to set a value for a variable slider without succes: self._variable_chooser_filter = grc_wxgui.drop_down_control( window=self.GetWin(), callback=self.change_filter, label='Choose Filter', index=0, choices=[1, 2, 3, 4, 5],

[Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit

2009-03-28 Thread feldmaus
I also stored another files with data captured from my signal generator. To store the data i used the Gnuradio companion with a USRP source (complex output) and a file_sink(complex input). The usrp source gets the data from my external signal-generator. But this time i increased the amplitude of my

[Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit

2009-03-28 Thread feldmaus
Brian Padalino gmail.com> writes: > > Wherefor is the first line ? > > For the I part or the Q part ? > > Does the lines of the I and Q part change from line to line ? > >  0 - 1i --> real(I) - imag(I) > >  -1 + 0i --> real(Q) + imag(Q) > > You may want to refresh your knowledge of complex numbe

[Discuss-gnuradio] Re: change connection during execution

2009-03-28 Thread feldmaus
Josh Blum joshknows.com> writes: > > top_block_gui inherits from a top block and wxgui window. It has all the > methods of a top block. So you can do anything that a top block can. > i solved this by reading the example: regards Markus ___ Di

[Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit

2009-03-27 Thread feldmaus
Markus Feldmann gmx.de> writes: > > Ok, here is a clipping from the data at the beginning: > 0 - 1i >-1 + 0i As you said the Output is stored as 64 bit value, 32bit I and 32 bit Q, but I and Q do have bot real and complex values ?! As you can see, every line consists onl

[Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit

2009-03-27 Thread feldmaus
Johnathan Corgan corganenterprises.com> writes: > > Just to make this completely clear: Very very thank you Johnathan. Ok, so i think the gnuradio docu should be updated, because there is written: "Data captured directly from the USRP is stored as 32-bit complex, rather than 64-bit complex (gr.

[Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit

2009-03-27 Thread feldmaus
Eric Blossom comsec.com> writes: > Or to avoid any confustion about how many samples are getting > generated, I think it's easier to think that it generates samples that > are of type std::complex. So you mean: I(32 bit) --> real(16 bit) + imag(16 bit) and Q(32 bit) --> real(16 bit) + imag(16 bi

[Discuss-gnuradio] change connection during execution

2009-03-26 Thread feldmaus
Hi All, i ant to change my connections during execution. I found some interesting posts in this thread, but i have no flowgraph like in theses posts. I am using not the flowgraph class. How to do this ? Regards Markus ___ Discuss-gnuradio mailing

[Discuss-gnuradio] Re: USRP - underflow / overflow problem

2009-03-26 Thread feldmaus
Narayanan, Sivaramasubramanian (R&T Honeywell.com> writes: > As soon as I run the program, I get messages like >   > uUuUuUuUuUuUuUuUuUuUuUuUuUuOuOuUuOuUuOuOuUuUuOuUuUuOuOuOuUuU Hi, in the gnuradio docu is something written about "latency". Maybe this could fit up your program to solve this

[Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit

2009-03-26 Thread feldmaus
I also want to save only as much data as needed to create ONE FFT-Plot in octave. My FFT-sink has got a fft-size of 1024. How to cut the stream for a fft-size of 1024 ? Regards Markus ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http:/

[Discuss-gnuradio] uses gr.file_sink 32 bit or 64 bit

2009-03-26 Thread feldmaus
Hi All again, :-) i want to save some output from the usrp and watch it with octave. Therefor i know is something written at, http://gnuradio.org/trac/wiki/Octave quotation: "Data captured directly from the USRP is stored as 32-bit complex, rather than 64-bit complex (gr.sizeof_gr_complex)" So i t

[Discuss-gnuradio] how to spit spectrum into smaller spectrums effectively and flexibly

2009-03-25 Thread feldmaus
Hi All, i want to watch/analyse at several spectrums at the same time. I noticed the function , but this parts a spectrum in smaller one which can not be moved. The parted spectrums have a constant distance in the analysis filterbank. But i need a flexible distance. Any Hints ? Regards Markus

[Discuss-gnuradio] question to measure SNR

2009-03-25 Thread feldmaus
Hi ALL, i saw there is a function called , but i doesn't know how to get this to work. Is there a example which is using this function ? Can i use this to measure my SNR ? I have a test sin signal. I also found the possibility by measuring the SNR by examine the bit-error-rate. Are there any e

[Discuss-gnuradio] Re: documentation of the gnuradio python modules

2009-03-24 Thread feldmaus
Hi All, can somebody of the developers give me a hint, where the fftsink2 is documented in the doxygen API ? Regards Markus ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] help on xlating frequency

2009-03-23 Thread feldmaus
Hi All, i tried out to delete some antialiasing and the middle signal of the FFT-Plot. Therefor i use this filter: ### VARIABLE ### #At adc_rate=64MS/s and decim=64 we get an usrp_rate of 1 MS/s self.decim=64 self.usrp_rate=1e6 ### FILTER ### self.firdes_filt_coeffs = gr.firdes.low_pass(1,

[Discuss-gnuradio] documentation of the gnuradio python modules

2009-03-23 Thread feldmaus
Hi All, i only want to say,it would be nice to have a clearer and more comprehensive gnuradio python modules documentation with examples. This would solve many basic problems ! The documentation at, https://radioware.nd.edu/documentation/a-dictionary-of-the-gnu-radio-blocks seems to b a good beg

[Discuss-gnuradio] setup taps in grc

2009-03-23 Thread feldmaus
Hi All, i played around with an frequency translating filter and noticed that there is no possibilty to create some taps with or in grc. Or am I wrong ? Regards Markus ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/

[Discuss-gnuradio] Re: unknown peak in the FFT-Plot Sink

2009-03-21 Thread feldmaus
Paul Mathews whidbey.com> writes: > > Use an Intermediate Frequency (IF) and frequency translating filter. > Paul Mathews I still use the IF by tune my usrp source with, usrp.tune(self.usrp_source, 0, self.selected_device, self.usrp_freq) But i think you mean to tune the "frequency translating

[Discuss-gnuradio] Re: how to show dB instead of dBFS in the FFT-Plot Sink

2009-03-21 Thread feldmaus
Markus Feldmann gmx.de> writes: > > Hi All, > > and thank you All for your Answers in my last thread. > > Now i want to know, how i can convert the showing > values in the Y-Axis of the FFT-Plot Sink to dB, so that > i can interpret this correctly. > Maybe i can do an offset to the usrp_sourc

[Discuss-gnuradio] Re: Import Error undefined symbol :in gnuradio examples on usrp

2009-03-06 Thread feldmaus
Ashwin Raut ruby-forum.com> writes: > ImportError: /usr/local/lib/python2.5/site-packages/gnuradio/_usrp1.so: > undefined symbol: _ZN10usrp_basic22_write_fpga_reg_maskedEiii Maybe the script doesn't work for you. There are some scripts which are not really good programmed. Or you need some specia

[Discuss-gnuradio] Re: how to setup adc_ratein grc_usrp.simple_source_c

2009-03-06 Thread feldmaus
Josh Blum joshknows.com> writes: > Simple source exists because actual usrp api is sooo crazy. The goal of > the simple source and simple sink is to provide the most useful options > to the usrp user. Thank you for your Reply. Is it possible to make an offset so that i get the right dB not dBF

[Discuss-gnuradio] Re: how to setup adc_rate in grc_usrp.simple_source_c

2009-03-05 Thread feldmaus
I can not find the class in the doxygen generated API. Where to find it ? ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] how to setup adc_rate in grc_usrp.simple_source_c

2009-03-05 Thread feldmaus
Hi All, i noticed that there will be used in the most example some special sources. Not the as in my program. Do i have to use for example to adjust the adc_rate ? Which one is the better ? Do i need to visualize it in my Companion ? Regards Markus _

[Discuss-gnuradio] Re: wrong dB

2009-03-03 Thread feldmaus
Martin Braun int.uni-karlsruhe.de> writes: > > Here, you're comparing with something else. There's a lot of stuff > between the coax connector and your software, so you can't trivially > translate sample values into Volts. Calibrating a USRP/GNU Radio setup > to actually measure physical units is

[Discuss-gnuradio] wrong dB

2009-03-03 Thread feldmaus
Hi All, i think i have a misunderstanding, but i don't know where it is. I tried out an example named with a Hardware Signal Generator connected to my USRP. My Signal Generator generates a sin Signal with 7.0711e-3V effective at f=1.05e6 Hz. So my power is, P = U*I = U^2/R, with I = U/R P = (7.

[Discuss-gnuradio] Re: change variables in the FFT Plot the 2.

2009-03-02 Thread feldmaus
Josh Blum joshknows.com> writes: > > Also, I am concerned that the gl fftsink aborted/segfaulted. Can you run > the flow graph in gdb and send the traceback? I thought you were interested in some debugging of this Problem. If not i will not go any further in this point. So i used (Python Debugg

[Discuss-gnuradio] 1 fine slider Element and 1 rough slider Element to adjust ONE frequnecy

2009-02-27 Thread feldmaus
Hi All, i want to make 2 sliders depending on each other. Both schould adjust the same frequency. One Slider for the rough counts and the other one fo the fine counts. How to realize that ? I tried this but without success. Here is a part of my code, ###

[Discuss-gnuradio] Re: change variables in the FFT Plot the 2.

2009-02-26 Thread feldmaus
Josh Blum joshknows.com> writes: > > > Using GRC, I just tested changing the sample rate of the fftsink. I > tested this for the gl and non gl version. The x-axis markers move and > change correctly when I move the slider for sample rate. The > flowgraph.grc is attached. > > I do not unders

[Discuss-gnuradio] Re: change variables in the FFT Plot the 2.

2009-02-25 Thread feldmaus
Josh Blum joshknows.com> writes: > > feldmaus wrote: > > feldmaus gmx.de> writes: > >> Not really RIGHT: > >> def set_samp_rate(self, samp_rate): > >> self.samp_rate = samp_rate > >> self.wxgui_fftsink2.set_samp_rate(self.samp_rate)

[Discuss-gnuradio] Re: change variables in the FFT Plot the 2.

2009-02-25 Thread feldmaus
feldmaus gmx.de> writes: > > Is there a 3d Testing Tool under Lnux, not > the glxinfo command. I tested my 3d with, $glxgears and works. So i will disable the gl. Or do you have any Hints ? I think my Problem with the set_sample_rate is not be coherent with the gl Problem? Re

[Discuss-gnuradio] Re: change variables in the FFT Plot the 2.

2009-02-25 Thread feldmaus
Josh Blum joshknows.com> writes: > > Please follow the directions to enable the wxgui - open gl sinks: > > http://gnuradio.org/trac/browser/gnuradio/trunk/gr-wxgui/README.gl > > Let me know how it works for you! Hi Josh, my Suse PC has a, ATI Radeon X300 (RV370) 5B60(PCIE) and i think my 3d A

[Discuss-gnuradio] (grc) change the code of top_block.py

2009-02-25 Thread feldmaus
HI All, Can you give me a hint, how the python code can be safely changed when i change sometimes the grc files ? Regards Markus ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Re: change variables in the FFT Plot the 2.

2009-02-24 Thread feldmaus
feldmaus gmx.de> writes: > Not really RIGHT: > def set_samp_rate(self, samp_rate): > self.samp_rate = samp_rate > self.wxgui_fftsink2.set_samp_rate(self.samp_rate) > > How is the Name of the method to set up the samp_rate ? self.wxgui_fftsink2.set_sampl

[Discuss-gnuradio] Re: change variables in the FFT Plot the 2.

2009-02-24 Thread feldmaus
feldmaus gmx.de> writes: > > Hi All, > > i am trying to get the FFT Plot Sink under grc(gnuradio > companion) to work. But the x-min and the x-max can't > be set up. As i read the x-Axis should be fitted by the > samp_rate variable, but it does not work. > >

[Discuss-gnuradio] change variables in the FFT Plot the 2.

2009-02-24 Thread feldmaus
Hi All, i am trying to get the FFT Plot Sink under grc(gnuradio companion) to work. But the x-min and the x-max can't be set up. As i read the x-Axis should be fitted by the samp_rate variable, but it does not work. Any Ideas ? Regards Markus ___ Di

[Discuss-gnuradio] Re: from a function generator into the LF-RX (maximum load)

2009-02-23 Thread feldmaus
Karthik gmail.com> writes: > If you look at the LFRX the input consists of AD813x fully differential > amplifier with unity gain and a input impedance of 50 ohm. I am not sure if there are diodes which limit the signal swing, maybe looking at the schematics can help you with this. Where are the Sc

[Discuss-gnuradio] Re: from a function generator into the LF-RX (maximum load)

2009-02-20 Thread feldmaus
Markus Feldmann gmx.de> writes: > > Hi All, > > as i read in the documentation, Is there additional documentation for the LF-RX Daughterboard ? Regards Markus ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/

[Discuss-gnuradio] Re: UDP do not work correctly

2009-02-18 Thread feldmaus
Jason Uher gmail.com> writes: > > > Do you have any hints for me? > > Unless I am misunderstanding your diagram, I think you need something > to slow down rate of the cosine source ([COS SOURCE]--/\-->[UDP > Sink 1]). If you connect it to a non-rate limited sink it will just > pump out sam

[Discuss-gnuradio] change variables in the FFT Plot

2009-02-13 Thread feldmaus
Hi All again, :-) i tried to change the Y/Div value with a slider, but this do not work. So how can i change the Variables of the FFT-Plot Sink during execution? Is there a possibility to change the x/Div ? Regards Markus ___ Discuss-gnuradio mailing

[Discuss-gnuradio] UDP do not work correctly

2009-02-13 Thread feldmaus
Hi Gnuradio People, :-) I tried to get the and to work. But it didn't work as it should. The FFT Plots only shows a white screen. The CPU of my Work PC is under 100% and my Server PC too. Should this be a Problem of ? I have a network traffic between the connected pc's with about 300Kbyte/s.

[Discuss-gnuradio] Re: some usrp modules are missing

2009-02-12 Thread feldmaus
Markus Feldmann gmx.de> writes: > > the is missing. As i read, the Tool is now called . Regards Markus ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Re: attribute error DTD

2009-02-05 Thread feldmaus
Josh Blum joshknows.com> writes: > > There is a problem with the installed version of python-lxml package. My > machine has lxml version 2.1.1. The latest version of lxml is 2.1.5 > (http://codespeak.net/lxml/index.html#download). > > Perhaps you have a very old version of lxml that is missin

[Discuss-gnuradio] Re: is there a sdcc option for configure

2009-02-04 Thread feldmaus
Eric Blossom comsec.com> writes: > > Why don't you just install it using whatever package manager your > system uses? apt-get or yum or whatever... There are dependency Problems with the sdcc Package under Suse. I hope the developer of this package read this. There are 2 packages, the and the

[Discuss-gnuradio] Re: attribute error DTD

2009-02-04 Thread feldmaus
feldmaus gmx.de> writes: > AttributeError: 'module' object has no attribute 'DTD' There seems to be a Problem with this Fie . The attribute doesn't exist. However, how can i download the last gnuradio Software, which doesn't co

[Discuss-gnuradio] attribute error DTD

2009-02-04 Thread feldmaus
Hi, i am trying to compile gnuradio on my Suse 11.1 PC. For compiling and i am using my normal user . For i am using the user . I downloaded and installed SDCC from Source. Then i downloaded and compiled the gnuradio source from the branch. The compilation goes right, but when i try to execut

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