[Discuss-gnuradio] USRP-KNOPPIX Beta with the Alsa problem fixes: Is there anywhere it can be downloaded?

2007-10-23 Thread Christina Simikoski
Hello, Is there anywhere the USRP-KNOPPIX Beta, with Alsa fixes can be downloaded, from? If not, then can at least someone put up the original USRP-Knoppix Beta release for download for all temporarily again please? I cant find it on any of the previous download sites, they are down, that had t

Re: [Discuss-gnuradio] found problem with std_4rx_0tx.rbf

2007-10-23 Thread Eric Blossom
On Tue, Oct 23, 2007 at 05:45:02PM -0700, Hans Glitsch wrote: > Yes If it's reporting overruns then all bets are off. multi_fft.py implements applies a channel filter to each stream. Try turning it off. It should be possible from the command line, but isn't. Change: parser.add_option("

Re: [Discuss-gnuradio] found problem with std_4rx_0tx.rbf

2007-10-23 Thread Hans Glitsch
Yes - Original Message - From: "Eric Blossom" <[EMAIL PROTECTED]> To: "Hans Glitsch" <[EMAIL PROTECTED]> Cc: Sent: Tuesday, October 23, 2007 5:37 PM Subject: Re: [Discuss-gnuradio] found problem with std_4rx_0tx.rbf On Tue, Oct 23, 2007 at 05:16:14PM -0700, Hans Glitsch wrote: Hi,

Re: [Discuss-gnuradio] found problem with std_4rx_0tx.rbf

2007-10-23 Thread Eric Blossom
On Tue, Oct 23, 2007 at 05:16:14PM -0700, Hans Glitsch wrote: > Hi, > > There's a problem with the std_4rx_0tx.rbf in the latest release. This > problem did not exist in 3.0. > > Please see the attached image. All four inputs should look exactly the > same, but there is something wrong with i

Re: [Discuss-gnuradio] Multi-channel I/Q buffer format...

2007-10-23 Thread Matt Ettus
Jared Jensen wrote: > I'm getting some strange behavior when I use two DBSRX boards with my > USRP. I just wanted to vet some of my assumptions as I'm debugging. > I'm assuming that the data comes across the USB bus as follows > > I_A/Q_A/I_B/Q_B/I_A/Q_A/ > > Is that correct? i.e. do we get I/Q

Re: [Discuss-gnuradio] GNU Radio 3.1.0 Release Tarballs Available

2007-10-23 Thread Eric Blossom
On Mon, Oct 22, 2007 at 07:05:43PM -0700, Johnathan Corgan wrote: > GNU Radio stable release 3.1.0 is now available for download: > To emphasize what Johnathan already said: > This new stable branch will be maintained such that existing Python and > C++ code based upon it will not break due to u

Re: [Discuss-gnuradio] output usrp_fft.py into a file

2007-10-23 Thread Eric Blossom
On Tue, Oct 23, 2007 at 02:53:44PM -0400, [EMAIL PROTECTED] wrote: > I am new to the GNU Radio and Python and need help with outputting the > usrp_fft.py output into a file or a variable at a particular rate. How can I > do that? > > Thank you in advance. Omer You will need to create a modified

Re: [Discuss-gnuradio] BBN module

2007-10-23 Thread Dan Halperin
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I think the answer you want is: cvs -d [EMAIL PROTECTED]:/cvs/adroitgrdevel co adroitgrdevel then ./bootstrap && ./configure as you wish from the gr-bbn subdirectory. - -Dan Mohammad Hamed Firooz wrote: > > Hi everyone, > I am going to use BBN cod

[Discuss-gnuradio] output usrp_fft.py into a file

2007-10-23 Thread meggahertz
I am new to the GNU Radio and Python and need help with outputting the usrp_fft.py output into a file or a variable at a particular rate. How can I do that? Thank you in advance. Omer -- This message was sent on behalf of [EMAIL PROTECTED] at openSubscriber.com http://www.opensubscriber.com/mes

[Discuss-gnuradio] Translation RFX drivers in C++

2007-10-23 Thread TGV
Hi, I have to use the RFX400 dboard for a C++ projet. Like the drivers for this board was not available in C++, I translated them from python. I am now debugging my code and I have some issues. 1) I am not able to tune correctly the VCO of the board (ADF4360-7). The VCO generates a signal at

Re: [Discuss-gnuradio] GNU Radio 3.1.0 Release Tarballs Available

2007-10-23 Thread Johnathan Corgan
Johnathan Corgan wrote: > GNU Radio stable release 3.1.0 is now available for download: The official signed tarballs are now up at gnu.org: ftp://ftp.gnu.org/gnu/gnuradio/gnuradio-3.1.0.tar.gz ftp://ftp.gnu.org/gnu/gnuradio/gr-howto-write-a-block-3.1.0.tar.gz -- Johnathan Corgan Corgan Enterpr

Re: [Discuss-gnuradio] Decoding CPFSK

2007-10-23 Thread Achilleas Anastasopoulos
Some time ago I had checked in a small piece of code that implements arbitrary CPM signals (CPFSK, GMSK, MSK, etc are special cases). It is still there in the trunk in the blks2impl directory under the name cpm.py My plan was to provide a generic trellis-based decoder for this as well, but never

Re: [Discuss-gnuradio] BBN module

2007-10-23 Thread Daniel Sumorok
Did you run ./configure, make and make install from the 802.11 top level directory? At 12:57 PM 10/23/2007, you wrote: Hi everyone, I am going to use BBN code on IEEE802.11b. But these codes need to import a module named bbn from gnuradio package. My gnuradio has not this module. Where can I f

Re: [Discuss-gnuradio] Strategy advice

2007-10-23 Thread Steven Clark
On 10/18/07, Johnathan Corgan <[EMAIL PROTECTED]> wrote: > One approach then would be to ensure this never happens, i.e., add a > small epsilon to each input stream, and make epsilon small enough to not > sufficiently impact the results for "typical" input values. Normalizing > the conjugate prod

Re: [Discuss-gnuradio] BBN module

2007-10-23 Thread Greg Troxel
Mohammad Hamed Firooz <[EMAIL PROTECTED]> writes: > Hi everyone, > I am going to use BBN code on IEEE802.11b. But these codes need to > import a module named bbn from gnuradio package. My gnuradio has not > this module. Where can I find it and how I can add it to my gnuradio > package. Several pe

Re: [Discuss-gnuradio] m-block/in-band signaling status/questions

2007-10-23 Thread Eric Blossom
On Tue, Oct 23, 2007 at 11:27:36AM -0500, sanmi wrote: > Hey guys, > > Our Group currently has a 2x2 MIMO-OFDM system implemented on the USRP/GNU > radio platform and we are planning on implementing a 4x4 MIMO-OFDM system > which we need working in the next couple of months. We are trying to decid

Re: [Discuss-gnuradio] gr.head, and flushing of file sinks

2007-10-23 Thread Eric Blossom
On Tue, Oct 23, 2007 at 12:22:31PM -0400, Steven Clark wrote: > 1) Has anybody ever noticed a case where gr.head doesn't seem to limit the > amount of data that flows through it? I have (some data source) -> (head) -> > (file sink), and sometimes the writing to the file shuts off appropriately, > o

[Discuss-gnuradio] BBN module

2007-10-23 Thread Mohammad Hamed Firooz
Hi everyone, I am going to use BBN code on IEEE802.11b. But these codes need to import a module named bbn from gnuradio package. My gnuradio has not this module. Where can I find it and how I can add it to my gnuradio package. Thanks hamed ___ Discu

Re: [Discuss-gnuradio] gr.head, and flushing of file sinks

2007-10-23 Thread Johnathan Corgan
Steven Clark wrote: > 1) Has anybody ever noticed a case where gr.head doesn't seem to limit > the amount of data that flows through it? I have (some data source) -> > (head) -> (file sink), and sometimes the writing to the file shuts off > appropriately, other times it seems to skip over the limi

Re: [Discuss-gnuradio] Mux settings...

2007-10-23 Thread Eric Blossom
On Tue, Oct 23, 2007 at 10:56:09AM -0500, Tarun Tiwari wrote: > Hi Eric, > > A small question :) > Did you mean that 0x3210 was not different from 0x32103210 on RFX > boards? If you're only using two channels, it doesn't matter what you route to the DDC inputs of channels 3 and 4 with this ca

[Discuss-gnuradio] m-block/in-band signaling status/questions

2007-10-23 Thread sanmi
Hey guys, Our Group currently has a 2x2 MIMO-OFDM system implemented on the USRP/GNU radio platform and we are planning on implementing a 4x4 MIMO-OFDM system which we need working in the next couple of months. We are trying to decide between a custom FPGA solution and the in-band signaling/m-b

Re: [Discuss-gnuradio] Mux settings...

2007-10-23 Thread Eric Blossom
On Tue, Oct 23, 2007 at 08:42:59AM -0700, Hans Glitsch wrote: > > > >For the Basic Rx, 0xf3f2f1f0 is the correct setting to feed 4 separate > >signals into the I inputs of 4 DDCs, with zeros fed to the Q inputs. > > > >To use 4 channels, you must use the std_4rx_0tx.rbf fpga image. > >If you use th

[Discuss-gnuradio] AMSAT Meeting in PITTSBURGH (not Philly)

2007-10-23 Thread Robert McGwier
Sorry! I typed Philadelphia (where I was last weekend) and I meant Pittsburgh, Pa which is indicated on the links. Ooops. Bob ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] gr.head, and flushing of file sinks

2007-10-23 Thread Steven Clark
1) Has anybody ever noticed a case where gr.head doesn't seem to limit the amount of data that flows through it? I have (some data source) -> (head) -> (file sink), and sometimes the writing to the file shuts off appropriately, other times it seems to skip over the limit and would happily consume m

[Discuss-gnuradio] AMSAT Meeting in Philadelphia

2007-10-23 Thread Robert McGwier
The Radio Amateur Satellite Corporation, Inc. (AMSAT), a non-profit 501c3 organization in the U.S. which designs, builds, launches satellites for the use of radio amateurs worldwide is holding its annual meeting in Pittsburgh, Pa. this coming weekend. http://www.amsat.org/amsat-new/symposium/2007/

Re: [Discuss-gnuradio] Decoding CPFSK

2007-10-23 Thread Johnathan Corgan
Andrew Rose wrote: > 2. 1200Hz/1800Hz continuous-phase FSK encoding 1200 bits per second. > i.e. each output bit is either 1 cycle of a 1200Hz wave (1-bit) or 1.5 > cycles of an 1800Hz wave (0-bit). The start of each bit is at a > zero-crossing (although there are obviously zero-crossings which a

Re: [Discuss-gnuradio] Mux settings...

2007-10-23 Thread Tarun Tiwari
Hi Eric, A small question :) Did you mean that 0x3210 was not different from 0x32103210 on RFX boards? Regards, Tarun UT Dallas On 10/22/07, Eric Blossom <[EMAIL PROTECTED]> wrote: > > If you're using a single channel, usrp.determine_rx_mux_value will get you > the right answer, regardless o

Re: [Discuss-gnuradio] Mux settings...

2007-10-23 Thread Hans Glitsch
For the Basic Rx, 0xf3f2f1f0 is the correct setting to feed 4 separate signals into the I inputs of 4 DDCs, with zeros fed to the Q inputs. To use 4 channels, you must use the std_4rx_0tx.rbf fpga image. If you use the std_4rx_0tx.rbf image, the decimation rate must be <= 128. If you need more d

Re: [Discuss-gnuradio] Decoding CPFSK

2007-10-23 Thread Ed Criscuolo
Andrew Rose wrote: 2. 1200Hz/1800Hz continuous-phase FSK encoding 1200 bits per second. i.e. each output bit is either 1 cycle of a 1200Hz wave (1-bit) or 1.5 cycles of an 1800Hz wave (0-bit). The start of each bit is at a zero-crossing (although there are obviously zero-crossings which aren'

[Discuss-gnuradio] Re: Unable to find USRP

2007-10-23 Thread Patrick Strasser
stevie.glass schrieb: I'm running Debian Etch (AMD 64, 2.6.22 kernel) with the binary GNURadio 3.0.2-2 packages. The 32 bit distribution works fine - I've been using it fine on my lab PC (same Debian Etch setup but 32 bit) for months. I only moved it there because this problem cropped up and i

[Discuss-gnuradio] Decoding CPFSK

2007-10-23 Thread Andrew Rose
I'm trying to use GNURadio to decode a bit-stream from an FM signal and could do with some help. 1. Having removed the narrowband-FM modulation from the signal, I'm left with the following. 2. 1200Hz/1800Hz continuous-phase FSK encoding 1200 bits per second. i.e. each output bit is either 1 cycle

[Discuss-gnuradio] Unable to find USRP

2007-10-23 Thread stevie.glass
Hi, Having a few problems getting GNURadio working on my home PC with the USRP. Can someone provide some tips to help me get it working again? The problem usrper has problems finding the USRP; it reports "usrper: failed to find usrp[0]". All of the examples fail with the "Unable to find USRP #0"

[Discuss-gnuradio] Problem with RFX900 daughterboard

2007-10-23 Thread M9607313
Hi,everyone! I'm trying to transmit square wave from one RFX900 at frequency 915MHz,and I use the spectrum analyser to receive the signal.That's right to work.But after several days,I want to transmit square wave from TX/RX port and receive it from RX2 port with two antenna.First I execute a ter

[Discuss-gnuradio] Problem with RFX900 daughterboard

2007-10-23 Thread M9607313
Hi,everyone! I'm trying to transmit square wave from one RFX900 at frequency 915MHz,and I use the spectrum analyser to receive the signal.That's right to work.But after several days,I want to transmit square wave from TX/RX port and receive it from RX2 port with two antenna.First I execute a ter

[Discuss-gnuradio] Channel estimation GSM (GMSK modulation)

2007-10-23 Thread Teun van Berkel
Hi Guys, I am interested in real-time channel estimation of a GSM signal. Since GSMK is a non-coherent modulation, performing channel estimation is not easy, at least to me. I have found a paper in which they correct for the 90 degree phase shift in every symbol (multiply by i^k, k'th symbol) befo