RE: [Discuss-gnuradio] Can't get input from sound card.

2007-03-16 Thread Bahn William L Civ USAFA/DFCS
> > But I don't seem to me able to get any data from the audio card using such > programs as audio_to_file.py or audio_fft.py. > I still can't get any input from the sound card. I have installed GNU Radio on a completely different computer. The dial_tone.py program works. I get a flat line (it b

[Discuss-gnuradio] GRC pre release screening

2007-03-16 Thread Josh Blum
Hello, I want to begin working on hierarchical flow graphs in GRC. Before I do this, I want to encompass my most recent work in a 0.65 version release. Would some volunteers mind trying out my snap shot? Try to run a few things, build a flow graph... Let me know if there are any glaring bugs

Re: [Discuss-gnuradio] A medley of questions

2007-03-16 Thread Eric Blossom
On Fri, Mar 16, 2007 at 08:07:33PM -0700, Mike Garcia wrote: > Hi Eric, > > I just joined the gnuradio discussion but I found your question about the > GMSK amplitude distortion interesting. My guess is that it's aliasing. GMSK > has good spectral efficiency but it still has spectral sidelobes tha

RE: [Discuss-gnuradio] A medley of questions

2007-03-16 Thread Mike Garcia
Hi Eric, I just joined the gnuradio discussion but I found your question about the GMSK amplitude distortion interesting. My guess is that it's aliasing. GMSK has good spectral efficiency but it still has spectral sidelobes that get folding into your desired passband when you decimate. I would sug

Re: [Discuss-gnuradio] window sizing issue

2007-03-16 Thread Eric Blossom
On Fri, Mar 16, 2007 at 06:29:42PM -0400, [EMAIL PROTECTED] wrote: > Ok, I can accept that this device was not intended to be used as a > calibrated measurement device, but maybe I can give it a shot. If I keep > the decimation constant, and stabilize the temperature, what other > consideration

Re: [Discuss-gnuradio] Segmentation Fault in rx_voice.py

2007-03-16 Thread Eric Blossom
On Fri, Mar 16, 2007 at 12:39:44AM -0500, Tarun Tiwari wrote: > Hi, > > I was trying to use rx_voice and tx_voice examples, but I found following > errors on different Fedora PCs. > > I have one computer (Pentium 4 Xeon 3.40GHz processor speed) with Kernel > 2.6.11-1.1369_FC4smp, and another comp

Re: [Discuss-gnuradio] window sizing issue

2007-03-16 Thread ematlis
Ok, I can accept that this device was not intended to be used as a calibrated measurement device, but maybe I can give it a shot. If I keep the decimation constant, and stabilize the temperature, what other considerations do I need to take into account (other than the obvious one, ie gain) for

Re: [Discuss-gnuradio] window sizing issue

2007-03-16 Thread ematlis
Thanks again! That worked great. As for who wrote the script, well, I adapted it (with much help from people on the discussion list) from a pre-existing wfm-based script, if I recall correctly. eric On Fri, 16 Mar 2007, Michael Dickens wrote: On Mar 16, 2007, at 12:01 PM, [EMAIL PROTECTED

Re: [Discuss-gnuradio] window sizing issue

2007-03-16 Thread Eric Blossom
On Fri, Mar 16, 2007 at 05:30:44PM -0400, [EMAIL PROTECTED] wrote: > Thanks- > > I'm using the DC-30 MHz basic RX board. So by recording the input signal, > recording the value displayed on my "time series" window, and knowing the > gain (0-20db if memory serves) I can calibrate the hardware so

Re: [Discuss-gnuradio] external 1pps pulse

2007-03-16 Thread Hans Glitsch
I currently have four complex input signals coming in through USB and I have a 1pps timing pulse coming from a gps source that I need to synchronize the 64MHz clock to and also pass on to the PC so that I know exactly which sample it occurred on. Can someone give me some guidance as to how I mi

Re: [Discuss-gnuradio] external 1pps pulse

2007-03-16 Thread Ryan Seal
Hans Glitsch wrote: Hello,   I currently have four complex input signals coming in through USB and I have a 1pps timing pulse coming from a gps source  that I need to synchronize the 64MHz clock to and also pass on to the PC so that I know exactly which sample it occurred

Re: [Discuss-gnuradio] window sizing issue

2007-03-16 Thread ematlis
Thanks- I'm using the DC-30 MHz basic RX board. So by recording the input signal, recording the value displayed on my "time series" window, and knowing the gain (0-20db if memory serves) I can calibrate the hardware so that I can back out the original voltage levels at the input? What impact

Re: [Discuss-gnuradio] external 1pps pulse

2007-03-16 Thread Eric Blossom
On Fri, Mar 16, 2007 at 01:08:27PM -0700, Hans Glitsch wrote: > Hello, > > I currently have four complex input signals coming in through USB > and I have a 1pps timing pulse coming from a gps source that I need > to synchronize the 64MHz clock to and also pass on to the PC so that > I know exactl

Re: [Discuss-gnuradio] Commodore is Back ...

2007-03-16 Thread Davide Anastasia
Il giorno ven, 16/03/2007 alle 16.16 -0400, Michael Dickens ha scritto: > < http://www.commodoregaming.com/pcshop/Game+PC/Commodore+xx.aspx > They seems to be only a IPER-provided standard Intel-based PC. -- Davide Anastasia web: http://www.davideanastasia.com/ email: [EMAIL PROTECTED] _

Re: [Discuss-gnuradio] window sizing issue

2007-03-16 Thread Eric Blossom
On Fri, Mar 16, 2007 at 12:43:01PM -0400, Michael Dickens wrote: > > >2) do you know how to convert the integer values on the third > >window (time-series) to actual voltage values as measured by the > >adc? It must be a function of the internal gain and offset. I > >need to know these eve

Re: [Discuss-gnuradio] installation error

2007-03-16 Thread Eric Blossom
On Fri, Mar 16, 2007 at 09:02:17AM -0700, bellzii wrote: > > hey everyone, > Im using a ubuntu 6.10 ,ive tried compiling the gnuradio but when i tried > the configuring gnuradio but i got the error : > gr_block.cc:41: error: 'gr_io_signature_sptr' has not been declared > gr_block.cc:42: err

Re: [Discuss-gnuradio] MSB

2007-03-16 Thread Eric Blossom
On Fri, Mar 16, 2007 at 01:26:08PM +0100, Davide Anastasia wrote: > Il giorno gio, 15/03/2007 alle 12.17 -0700, Eric Blossom ha scritto: > > I think you'll find it easier to do the unpacking in a separate block > > downstream from the usrp1_source_s. Modifying usrp1_source* to handle > > samples s

Re: [Discuss-gnuradio] Question about Basic TX/RX boards, the I, Q

2007-03-16 Thread Eric Blossom
On Fri, Mar 16, 2007 at 09:49:47AM -0400, [EMAIL PROTECTED] wrote: > I am having the same problem of being able to receive on RX_A but > not RX_B and I don't know why. Any help would be much appreciated. > Thanks > Nick Assuming the Basic Rx is on the "A" side, use -R a:1 to access the RX_B inp

Re: [Discuss-gnuradio] Qwt packages for Fedora

2007-03-16 Thread Johnathan Corgan
Trond Danielsen wrote: > 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 > the upstream devs too. It's fine and I encourage having t

Re: [Discuss-gnuradio] Question about Basic TX/RX boards, the I, Q

2007-03-16 Thread Eric Blossom
On Fri, Mar 16, 2007 at 05:33:36PM +0800, hanwen wrote: > Hi, all. > > Today I try an old QPSK transmission program on Basic TX/RX and failed. > However, it does work well on rfx2400. > I just simply connect TX 1 of Basic TX on transmitter to RX 1 of Basic RX on > receiver. The receiver program fa

Re: [Discuss-gnuradio] Tx Signal time

2007-03-16 Thread Eric Blossom
On Fri, Mar 16, 2007 at 10:10:28AM +0100, anmar wrote: > hi, > > How can i set the time of the signal between sin and cos. > in the file test_usrp_standard_tx.cc when i change the ampl the ampl > changes. > pattern[2*i+1] = host_to_usrp_short ((short) (ampl * sin (2*M_PI*i > /PERIOD))); > but whe

Re: [Discuss-gnuradio] DBSRX: Tune the LO from python

2007-03-16 Thread Eric Blossom
On Fri, Mar 16, 2007 at 01:17:27AM -0700, Chris Stankevitz wrote: > Is it possible to set the DBSRX's LO frequency and the FPGA DDC > independently? Yes it is. > Currently you can set the single quantity (LO - DCC) > using the USRP's "tune" member function. > > When f = 1.57542GHz, I do not li

[Discuss-gnuradio] Commodore is Back ...

2007-03-16 Thread Michael Dickens
And it's a rockin' computer under the hood. While it's meant for gaming, it should make an awesome SDR box too! I just wonder how much this particular model costs ... can't be cheap ;( < http://www.commodoregaming.com/pcshop/Game+PC/Commodore+xx.aspx > Features: This is the starting point

[Discuss-gnuradio] external 1pps pulse

2007-03-16 Thread Hans Glitsch
Hello, I currently have four complex input signals coming in through USB and I have a 1pps timing pulse coming from a gps source that I need to synchronize the 64MHz clock to and also pass on to the PC so that I know exactly which sample it occurred on. Can someone give me some guidance as to

[Discuss-gnuradio] Re: installation error

2007-03-16 Thread Tarun Tiwari
hey everyone, Hi Ziad, Im using a ubuntu 6.10 ,ive tried compiling the gnuradio but when i tried the configuring gnuradio but i got the error : gr_block.cc:41: error: 'gr_io_signature_sptr' has not been declared gr_block.cc:42: error: 'gr_io_signature_sptr' has not been declared gr_block.cc:

[Discuss-gnuradio] compiling error

2007-03-16 Thread bellzii
does any1 know what does the error make[4]: *** [gr_block.lo] Error 1 make[4]: Leaving directory `/home/ziad/Desktop/gnuradio-3.0.3/gnuradio-core/src/lib/runtime' make[3]: *** [install-recursive] Error 1 make[3]: Leaving directory `/home/ziad/Desktop/gnuradio-3.0.3/gnuradio-core/src/lib' make[2]:

Re: [Discuss-gnuradio] window sizing issue

2007-03-16 Thread Michael Dickens
On Mar 16, 2007, at 12:01 PM, [EMAIL PROTECTED] wrote: 1) do you happen to know where the default values for the control buttons are set? I'd like to change the time scale from 100us/div to 1ms/div and to set the Autorange to "on" by default. In your "am_..." file, change the "scope_sink_f"

[Discuss-gnuradio] installation error

2007-03-16 Thread bellzii
hey everyone, Im using a ubuntu 6.10 ,ive tried compiling the gnuradio but when i tried the configuring gnuradio but i got the error : gr_block.cc:41: error: 'gr_io_signature_sptr' has not been declared gr_block.cc:42: error: 'gr_io_signature_sptr' has not been declared gr_block.cc: In cons

Re: [Discuss-gnuradio] window sizing issue

2007-03-16 Thread ematlis
Michael- thanks very much for your help! Your changes have fixed the "control buttons covered" issue. I'll have to study what you did; I don't know any wxPython at all and as you've mentioned it's not easy to wade through existing documentation. Two other questions- 1) do you happen to kn

[Discuss-gnuradio] window sizing issue

2007-03-16 Thread Michael Dickens
In gr-wxgui/src/python/scopesink.py (and ...2.py), is it a bug or feature that the "size" isn't passed through to the actual objects being created (like it is in fftsink.py)? If a bug, I can fix it quickly; if a feature, then can someone offer an explanation? Thanks! - MLD ___

Re: [Discuss-gnuradio] Question about Basic TX/RX boards, the I, Q

2007-03-16 Thread njm25
I am having the same problem of being able to receive on RX_A but not RX_B and I don't know why. Any help would be much appreciated. Thanks Nick Content-Type: multipart/alternative; boundary="=_Part_43578_14158760.1174037616509" --=_Part_43578_14158760.1174037616509 Content-Ty

[Discuss-gnuradio] Re: gr_noise_source_X( ) only negative seeds?

2007-03-16 Thread Tim Meehan
I have submitted a patch to patch-gnuradio@ for gr_noise_source and qa code The patch is to gr_noise_source_X rather than gr_random::ran1() I am not sure why but most implementations from ran1() set all positive values of seeds to 1. Rather then mess with what may be convention I thought it mi

Re: [Discuss-gnuradio] MSB

2007-03-16 Thread Davide Anastasia
Il giorno gio, 15/03/2007 alle 12.17 -0700, Eric Blossom ha scritto: > I think you'll find it easier to do the unpacking in a separate block > downstream from the usrp1_source_s. Modifying usrp1_source* to handle > samples smaller than 1 byte is going to take quite a bit of work. > Part of the pro

Re: [Discuss-gnuradio] MSB

2007-03-16 Thread Davide Anastasia
Il giorno gio, 15/03/2007 alle 12.17 -0700, Eric Blossom ha scritto: > I think you'll find it easier to do the unpacking in a separate block > downstream from the usrp1_source_s. Modifying usrp1_source* to handle > samples smaller than 1 byte is going to take quite a bit of work. > Part of the pro

[Discuss-gnuradio] USRP schematic..

2007-03-16 Thread pankaj kumar
Hello Sir I have bought the USRP board, basically i am doing a project. So for that purpose i need to have the detail schematic of USRP board. for example if i have programmed FPGA by my own RBF files, which i have generated by quartus 2 software. In that i did pin assignment of input and

[Discuss-gnuradio] Question about Basic TX/RX boards, the I, Q

2007-03-16 Thread hanwen
Hi, all. Today I try an old QPSK transmission program on Basic TX/RX and failed. However, it does work well on rfx2400. I just simply connect TX 1 of Basic TX on transmitter to RX 1 of Basic RX on receiver. The receiver program failed to synchronize with pilot sequence. The carrier frequency is 1

[Discuss-gnuradio] Tx Signal time

2007-03-16 Thread anmar
hi, How can i set the time of the signal between sin and cos. in the file test_usrp_standard_tx.cc when i change the ampl the ampl changes. pattern[2*i+1] = host_to_usrp_short ((short) (ampl * sin (2*M_PI*i /PERIOD))); but when i change it to pattern[2*i+1] = host_to_usrp_short ((short) (ampl * s

Re: [Discuss-gnuradio] Qwt packages for Fedora

2007-03-16 Thread Trond Danielsen
2007/3/16, Johnathan Corgan <[EMAIL PROTECTED]>: Jason Coy wrote: > Yeah, I agree that the .pc file is the best way to handle providing this > info. In the qwt tar file on the n4hy.org web site there is a version of > the qwt library that has the .pc file in it. It is similar to the qt-mt.pc >

[Discuss-gnuradio] DBSRX: Tune the LO from python

2007-03-16 Thread Chris Stankevitz
Is it possible to set the DBSRX's LO frequency and the FPGA DDC independently? Currently you can set the single quantity (LO - DCC) using the USRP's "tune" member function. When f = 1.57542GHz, I do not like GNURadio's choice of LO = 1.5755 GHz DDC = 80KHz The board seems to put out a signal