Re: [Discuss-gnuradio] Install gnuradio error help request

2005-06-14 Thread Ramakrishnan Muthukrishnan
All the gnuradio related stuff is in the Debian archive, so with proper lines in the apt sources.list, you can install all of them. Also if you pull the sources from debian archive, you can look at the build-dependencies and also the configure commandline. -- 73 - Ramakrishnan, VU3RDD ___

[Discuss-gnuradio] FM Stereo Transmitter Code

2005-06-14 Thread James Smith
I've witten some code to transmit an fm stereo signal. I don't have a USRP to test it with a hardware reciever, but I did check the output with the fm stereo recieving code avalible. If anyone with a USRP could test this code I would apperciate it. What I am most intereted in finding out is if th

Re: [Discuss-gnuradio] USRP RF Daughterboards

2005-06-14 Thread Matt Ettus
David Bengtson wrote: > Hi Matt: > > Quick question on powering rf daughter boards. Looking at the schematic > for the USRP, it looks like the external power connector goes to U502, > which is a 3.3 V Regulator. DVDD comes right off the output of U502, and > then AVDD is derived from DVDD by the f

Re: [Discuss-gnuradio] Suggestions regarding a frequency reference

2005-06-14 Thread Matt Ettus
If you want to use the 40 MHz reference, the best option is to desolder the oscillator on the board and replace it with the 40 MHz one. Matt ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnur

[Discuss-gnuradio] USRP RF Daughterboards

2005-06-14 Thread David Bengtson
Hi Matt: Quick question on powering rf daughter boards. Looking at the schematic for the USRP, it looks like the external power connector goes to U502, which is a 3.3 V Regulator. DVDD comes right off the output of U502, and then AVDD is derived from DVDD by the filter's around L511, L510, L60

Re: [Discuss-gnuradio] Suggestions regarding a frequency reference

2005-06-14 Thread David Bengtson
Matt Ettus wrote: David P. Reed wrote: In interfacing a new 5 GHz up/downconverter to the USRP (my summer project), I find that I need a 40 MHz frequency reference to drive a PLL in the chip. My first prototype will interface using the Basic Rx/Tx daughterboards, and it occurs to me that

Re: [Discuss-gnuradio] Install gnuradio error help request

2005-06-14 Thread Eric Blossom
On Tue, Jun 14, 2005 at 08:45:05PM -0500, EDWARD HALL wrote: > I am doing my first build of gnuradio and am getting an error related to > "Python include path." > > My Linux installation is a hard drive install of a Knoppix live CD. My > system is a 500 MHz Pentium. I am following the HowToBui

Re: [Discuss-gnuradio] VGA-based DVB-T modulator

2005-06-14 Thread Eric Blossom
On Tue, Jun 14, 2005 at 02:36:48AM -0700, John Gilmore wrote: > > Does anyone here know if the VGA cards prevent you from controlling > > the DAC durinng the blanking intervals? Are the blanking intervals > > implemented in hardware or in software? > IIRC correctly, on some of the high end video

Re: [Discuss-gnuradio] USRP errors

2005-06-14 Thread Eric Blossom
On Tue, Jun 14, 2005 at 06:25:42PM -0500, Meenal wrote: > I have a bidirectional set up using two USRP's on two machines. Data > exchange is achieved with tx and rx scripts. > > usrp1 usrp2 > - - > t

[Discuss-gnuradio] Install gnuradio error help request

2005-06-14 Thread EDWARD HALL
I am doing my first build of gnuradio and am getting an error related to "Python include path."My Linux installation is a hard drive install of a Knoppix live CD.  My system is a 500 MHz Pentium.  I am following the HowToBuildFromCVS instructions and get the following results when I use:[EMA

[Discuss-gnuradio] NTSC Audio, Got It

2005-06-14 Thread Thom Rainwater
I took another look at the code I submitted before. The problem was that the dboard was tuning to RF_freq instead of RF_freq + 1.75e6 (which is the center of the band for the TV spectrum). So if you change the lines: (success, actual_freq) = dboard.set_freq(RF_freq) and IF_freq = -5.75e6 - RF_freq

[Discuss-gnuradio] USRP errors

2005-06-14 Thread Meenal
I have a bidirectional set up using  two USRP's on two machines. Data exchange is achieved with tx and rx scripts. usrp1   usrp2 -   - tx.py  |Src|   <---> |Tar| tx.py rx.py 

Re: [Discuss-gnuradio] Suggestions regarding a frequency reference

2005-06-14 Thread Matt Ettus
David P. Reed wrote: > In interfacing a new 5 GHz up/downconverter to the USRP (my summer > project), I find that I need a 40 MHz frequency reference to drive a PLL > in the chip. My first prototype will interface using the Basic Rx/Tx > daughterboards, and it occurs to me that I can probably us

Re: [Discuss-gnuradio] Tuning <50kHz steps with TVRX?

2005-06-14 Thread Matt Ettus
John Ackermann N8UR wrote: > I made some real progress today and have both WFM and NBFM working on my > primary computer. > > In looking at the tvrx_nbfm_rcv_gui program, there's a note that the > smallest tuning step is 50kHz; I presume this is a limitation of the > tuner module. I'm sure there

[Discuss-gnuradio] Tuning <50kHz steps with TVRX?

2005-06-14 Thread John Ackermann N8UR
I made some real progress today and have both WFM and NBFM working on my primary computer. In looking at the tvrx_nbfm_rcv_gui program, there's a note that the smallest tuning step is 50kHz; I presume this is a limitation of the tuner module. I'm sure there must be a way to get smaller tuning ste

Re: [Discuss-gnuradio] FYI patent application for mobile sdr

2005-06-14 Thread Ulf Söderberg
n4hy wrote: Obvious does not mean not patentable. We need to write the patent office and object. Bob And Mobile doesn't mean small (as a cellphone). They probably thought it did ;) /Ulf -- Ulf Söderberg http://osgifun.blogspot.com ___ Discu

Re: [Discuss-gnuradio] FYI patent application for mobile sdr

2005-06-14 Thread n4hy
Obvious does not mean not patentable. We need to write the patent office and object. Bob Eric Blossom wrote: On Tue, Jun 14, 2005 at 02:36:13PM -0400, Kimsey Pollard wrote: FYI A patent app which seems to claim all the the mobile applications of SDR. http://tinyurl.com/dtz8x Kimsey

[Discuss-gnuradio] HF Receiver

2005-06-14 Thread cswiger
Hi All - just cleaning up my HF receiver, I'm running out of features to add: * 32 Khz wide spectrum display w/ carrier point at 0, displays +-16khz, averaging defaults on * Frequency set with slider (make large changes fast), Powermate knob (100hz resolution), spin control (1hz or type in fre

Re: [Discuss-gnuradio] FYI patent application for mobile sdr

2005-06-14 Thread Krzysztof Kamieniecki
Quoting Eric Blossom <[EMAIL PROTECTED]>: > On Tue, Jun 14, 2005 at 02:36:13PM -0400, Kimsey Pollard wrote: > > FYI > > A patent app which seems to claim all the > > the mobile applications of SDR. > > > > http://tinyurl.com/dtz8x > > > > Kimsey > > > > Kimsey Pollard > > Microelectronic Resear

[Discuss-gnuradio] Suggestions regarding a frequency reference

2005-06-14 Thread David P. Reed
In interfacing a new 5 GHz up/downconverter to the USRP (my summer project), I find that I need a 40 MHz frequency reference to drive a PLL in the chip. My first prototype will interface using the Basic Rx/Tx daughterboards, and it occurs to me that I can probably use one of the DAC clocks f

Re: [Discuss-gnuradio] FYI patent application for mobile sdr

2005-06-14 Thread Eric Blossom
On Tue, Jun 14, 2005 at 02:36:13PM -0400, Kimsey Pollard wrote: > FYI > A patent app which seems to claim all the > the mobile applications of SDR. > > http://tinyurl.com/dtz8x > > Kimsey > > Kimsey Pollard > Microelectronic Research Center > Georgia Institute of Technology > 404-894-4207 > Th

[Discuss-gnuradio] FYI patent application for mobile sdr

2005-06-14 Thread Kimsey Pollard
FYIA patent app which seems to claim all thethe mobile applications of SDR.http://tinyurl.com/dtz8xKimsey Kimsey Pollard Microelectronic Research Center Georgia Institute of Technology 404-894-4207 ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.o

Re: [Discuss-gnuradio] The power of N log N

2005-06-14 Thread Matt Ettus
Lamar Owen wrote: > Yeah, been tracking CVS on a machine here, and noticed a load of differences. > > One quick question: now that tweak_adc_offset is no longer in the repository, > is the ADC DC offset automatic? I still see a DC spike in the FFT output. > In the large FFT case, I notice t

Re: [Discuss-gnuradio] USRP Status.

2005-06-14 Thread Marcus Leech
I have an automatic equalizer function on my spectrum analyser (not gnuradio, and not USRP), to deal with exactly this problem. It doesn't work that tremendously well, but it does flatten the spectral response somewhat. My application was radio astronomy. My USRP is on its way (got a note

Re: [Discuss-gnuradio] interfacing usrp

2005-06-14 Thread n4hy
GREAT. Thanks Bob Lamar Owen wrote: On Tuesday 14 June 2005 10:14, Robert McGwier wrote: One modification. If the TVRX is in RX-B port use ./tvrx_wfm_rcv_gui.py --freq 100.1 -w 1 Latest tvrx_wfm_rcv_gui.py autodetects; CVS update as of an hour ago. My TVRX is on side=1, and t

Re: [Discuss-gnuradio] USRP Status.

2005-06-14 Thread n4hy
The cheapest dirtiest thing to do is to normalize the baseline (up to some extent or some frequency bounds) so you get a straight threshold detection problem. The correct thing to do is to use different filters but that involves changing FPGA code while trying to bring out four or five hardware

[Discuss-gnuradio] Re: Clarifications regarding USRP

2005-06-14 Thread Matt Ettus
> > USRP installation and frequency related queries: \ > > 1.What are steps by which we can successfully install the USRP on > Linux? And how can we test it? These are well detailed on: http://www.kd7lmo.net/ground_gnuradio_install.html > > > 2.How to set the sampling rates for bo

Re: [Discuss-gnuradio] interfacing usrp

2005-06-14 Thread Lamar Owen
On Tuesday 14 June 2005 10:14, Robert McGwier wrote: > One modification. If the TVRX is in RX-B port use > > ./tvrx_wfm_rcv_gui.py --freq 100.1 -w 1 Latest tvrx_wfm_rcv_gui.py autodetects; CVS update as of an hour ago. My TVRX is on side=1, and the latest code detects this. If you have two tv

Re: [Discuss-gnuradio] interfacing usrp

2005-06-14 Thread Robert McGwier
One modification. If the TVRX is in RX-B port use ./tvrx_wfm_rcv_gui.py --freq 100.1 -w 1 Bob Eric Blossom wrote: On Thu, Jun 09, 2005 at 03:29:42PM +0530, KUNAL RAJANI wrote: hi all, i have just started on with gnu radio and have installed all the required libraries. I would like

Re: [Discuss-gnuradio] installing wxPython

2005-06-14 Thread Robert McGwier
http://www.kd7lmo.net/ground_gnuradio_baseline.html Download build_baseline.sh and copy the instructions. This is the best page related to this project, IMNSHO. Bob KUNAL RAJANI wrote: i had downloaded wxPython from http://prdownloads.sourceforge.net/wxpython/wxPython-src-2.6.1.0.tar.gz

Re: [Discuss-gnuradio] NTSC Audio Demodulation

2005-06-14 Thread Thom Rainwater
> Date: Mon, 13 Jun 2005 12:39:51 -0700 > From: Eric Blossom <[EMAIL PROTECTED]> > Subject: Re: [Discuss-gnuradio] NTSC Audio Demodulation > To: Thom Rainwater <[EMAIL PROTECTED]> > Cc: discuss-gnuradio@gnu.org > Message-ID: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset=us-ascii > > On M

[Discuss-gnuradio] USRP Status.

2005-06-14 Thread Lamar Owen
Now that I'm getting my mind wrapped around some of the concepts in DSP, and having read the AD9862 docs and such, I have a status request of Matt: How's the half-band filter situation going? For radio astronomy spectrography, the curved baseline with 1dB or less per division really makes it d

Re: [Discuss-gnuradio] The power of N log N

2005-06-14 Thread Lamar Owen
On Monday 13 June 2005 16:36, Eric Blossom wrote: > Matt and I had quite the hack-a-thon over the past few days. Yeah, been tracking CVS on a machine here, and noticed a load of differences. One quick question: now that tweak_adc_offset is no longer in the repository, is the ADC DC offset autom

[Discuss-gnuradio] bad noise

2005-06-14 Thread KUNAL RAJANI
hi, finally i updated the libraries via cvs and now the wfm_rcv_gui.py ex. is running... but all i can hear is noise... i havent added any antenna or any RF front end (as that file doesnt require any) but just a small piece of wire. what should i do??? thanks, Kunal _

Re: [Discuss-gnuradio] VGA-based DVB-T modulator

2005-06-14 Thread John Gilmore
> Does anyone here know if the VGA cards prevent you from controlling > the DAC durinng the blanking intervals? Are the blanking intervals > implemented in hardware or in software? Generally, video cards stop squirting bits during the blanking intervals, which are implemented in software. This l