Re: [Discuss-gnuradio] USRP transient peak from lock, unlock, set decim/freq

2011-07-19 Thread Johannes Schmitz
> Also, there's no reason to lock the flow-graph for frequency changes or gain > changes (or a bunch of other parametric changes > within the flow-graph). I've never had to use lock()/unlock()--I > understand that they're used during flow-graph topology changes. > But parametric changes don't re

Re: [Discuss-gnuradio] plotter_base.py problem

2011-07-19 Thread Miguel A. Vallejo, EA4EOZ
Marcus D. Leech wrote: Just on a hunch, try: export LIBGL_ALWAYS_INDIRECT=1 Before you start any of the above applications. Yes!, It works! OpenGL has, in my opinion, become a festering sore of incompatibilities and weird edge conditions. It used to work reliably on just about anythin

Re: [Discuss-gnuradio] plotter_base.py problem

2011-07-19 Thread Patrik Tast
Try, ./usrp_nbfm_rcv.py -R A -f 435.3e6 -O plughw:0,0 The *-O* switch tells which audio device to use. Patrik - Original Message - From: "Patrik Tast" To: Sent: Monday, July 18, 2011 5:01 Subject: Re: [Discuss-gnuradio] plotter_base.py problem if you cd to /usr/local/bin and the

Re: [Discuss-gnuradio] plotter_base.py problem

2011-07-19 Thread Marcus D. Leech
On 19/07/2011 8:50 AM, Miguel A. Vallejo, EA4EOZ wrote: Completely agree. Why use a monster like OpenGL to make simple 2D graphics? Gnu Radio swallowed the OpenGL monster "by proxy" when we opted to use WxPython, and the plotting/graphing widgets in WxPython happen to use OpenGL for rend

[Discuss-gnuradio] problem in daughter boards

2011-07-19 Thread Eng.Ziedan
Dear all i have a usrp1, RFX2400 and WBX and i have a coaxial cable from the wifi card to the rfx2400 TX/RX port i want to pass the stream from the wifi card to the rfx2400 then to the wbx to transmit it over the UHF band how could i do that ?? here is the connection i have created (attached) plea

Re: [Discuss-gnuradio] plotter_base.py problem

2011-07-19 Thread Philip Balister
On 07/19/2011 08:50 AM, Miguel A. Vallejo, EA4EOZ wrote: Marcus D. Leech wrote: Just on a hunch, try: export LIBGL_ALWAYS_INDIRECT=1 Before you start any of the above applications. Yes!, It works! OpenGL has, in my opinion, become a festering sore of incompatibilities and weird edge condi

[Discuss-gnuradio] USRP2's FPGA resources

2011-07-19 Thread Eduardo Lloret Fuentes
Hello, I would like to ask if someone could tell me how much of the USRP2's FPGA resources are consumed by the firmware (the ZPU) and the FPGA (DSP operations) images. Or, in other words, how much of the resources is free. Thanks! Edu. ___ Discuss-gnur

Re: [Discuss-gnuradio] [USRP-users] USRP2's FPGA resources

2011-07-19 Thread Jason Abele
On Tue, Jul 19, 2011 at 06:00:36PM +0200, Eduardo Lloret Fuentes wrote: > Hello, > > I would like to ask if someone could tell me how much of the USRP2's FPGA > resources are consumed by the firmware (the ZPU) and the FPGA (DSP > operations) images. Or, in other words, how much of the resources is

Re: [Discuss-gnuradio] USRP2's FPGA resources

2011-07-19 Thread Marcus D. Leech
On 19/07/2011 12:00 PM, Eduardo Lloret Fuentes wrote: Hello, I would like to ask if someone could tell me how much of the USRP2's FPGA resources are consumed by the firmware (the ZPU) and the FPGA (DSP operations) images. Or, in other words, how much of the resources is free. Thanks! Edu.

Re: [Discuss-gnuradio] problem in daughter boards

2011-07-19 Thread Eng.Ziedan
> > Dear all > i have a usrp1, RFX2400 and WBX and i have a coaxial cable from the wifi > card to the rfx2400 TX/RX port > i want to pass the stream from the wifi card to the rfx2400 then to the wbx > to transmit it over the UHF band > how could i do that ?? > here is the connection i have created

Re: [Discuss-gnuradio] File Sink & Buffering

2011-07-19 Thread Wolfarth, Ryan
Hi Ryan, What version of GNU Radio are you using? I'm working with the USRP2 to collect GPS data and I have a similar scheme: I have a cyclic buffer that holds data that was recorded just prior to a triggering event. Once a trigger event is received, incoming data is written to an open file sink

Re: [Discuss-gnuradio] problem in daughter boards

2011-07-19 Thread Josh Blum
On 07/19/2011 07:37 AM, Eng.Ziedan wrote: > Dear all > i have a usrp1, RFX2400 and WBX and i have a coaxial cable from the wifi > card to the rfx2400 TX/RX port > i want to pass the stream from the wifi card to the rfx2400 then to the wbx > to transmit it over the UHF band > how could i do that

[Discuss-gnuradio] PN code used in gr_pn_correlator_cc

2011-07-19 Thread Jim Simpson
Hi, I am new to both gnuradio and spread spectrum. I know I'll eventually have to move to writing python, but I am trying to get something working in grc. My question is about the PN Correlator block. I would like to generate some transmit data that is coded using the same reference pn codes used

Re: [Discuss-gnuradio] problem in daughter boards

2011-07-19 Thread Jason Abele
On Tue, Jul 19, 2011 at 11:20 AM, Josh Blum wrote: > > > On 07/19/2011 07:37 AM, Eng.Ziedan wrote: >> Dear all >> i have a  usrp1, RFX2400 and WBX and i have a coaxial cable from the wifi >> card to the rfx2400 TX/RX port >> i want to pass the stream from the wifi card to the rfx2400 then to the w

Re: [Discuss-gnuradio] File Sink & Buffering

2011-07-19 Thread Ryan Pape
I am using the current GIT version. I'm using data collected from a USRP1 at an earlier time but captured to disk. Incidentally, after further analyzing the situation, I do not believe the latency in starting my "save to disk" operation is the problem. I think it is more esoteric and probably unr

Re: [Discuss-gnuradio] problem in daughter boards

2011-07-19 Thread Marcus D. Leech
On 19/07/2011 12:59 PM, Eng.Ziedan wrote: Dear all i have a usrp1, RFX2400 and WBX and i have a coaxial cable from the wifi card to the rfx2400 TX/RX port i want to pass the stream from the wifi card to the rfx2400 then to the wbx to transmit it over the UHF band how cou

[Discuss-gnuradio] reg transceiver program

2011-07-19 Thread shantharam balasubramanian
hi. i wanted to simulate a transceiver which receives some data and then transmits its own and the data it got. I have been modifying then benchmark_tx and rx program to do this and I was able to simulate the transceiver I mentioned, by adding the sender code in the "def_rxcallback" function. I don

Re: [Discuss-gnuradio] Stream tags and None 1 to 1 processing blocks. Failure to propagate

2011-07-19 Thread Tom Rondeau
On Mon, Jul 18, 2011 at 10:28 PM, Colby Boyer wrote: > Hi All, > > I have seem to run into an issue with the stream tags and interp/decimation > processing blocks. When computing to add the tag to the proper output > offset, it always rounds down. In certain cases, computed offset is X.YZ, > wher

Re: [Discuss-gnuradio] File Sink & Buffering

2011-07-19 Thread Tom Rondeau
On Tue, Jul 19, 2011 at 2:58 PM, Ryan Pape wrote: > I am using the current GIT version. I'm using data collected from a USRP1 > at an earlier time but captured to disk. Incidentally, after further > analyzing the situation, I do not believe the latency in starting my "save > to disk" operation

Re: [Discuss-gnuradio] Stream tags and None 1 to 1 processing blocks. Failure to propagate

2011-07-19 Thread Colby Boyer
Yea, sorry for vague email. Was tired and in a hurry. I encountered the error when dealing with a bank of polyphase resamplers. I traced the tag copying to gnuradio-core/src/lib/runtime/gr_block_executor.cc line 121 for none 1 to 1 (fractional rate) blocks. The logic written originally is pmt::pmt

Re: [Discuss-gnuradio] WBFM receive block and FM demodulation process questions

2011-07-19 Thread Colby Boyer
Try using a single pole IIR filter. If you don't know what an IIR is, wiki it, better explanation there than from me. Keep pushing the frequency cutoff to a lower frequency until the static gets better. If you go to far, your audio should disappear. On Tue, Jul 19, 2011 at 5:22 PM, concernedconsum

[Discuss-gnuradio] Developers' Call, July 21, 2011

2011-07-19 Thread Tom Rondeau
The July developers' call will happen this Thursday. Call details as usual. Date: July 21, 2011 Time: 10 PM UTC (6 PM EDT, 3 PM PDT) SIP: sip:gnura...@digitalbazaar.com IRC: #gnuradio on freenode The agenda is published at: http://gnuradio.org/redmine/projects/gnuradio/wiki/Call20110721 Tom

[Discuss-gnuradio] Removal of USRP2 support

2011-07-19 Thread Brenden Smith
Quick question: why is the removal of support for the USRP2 (et. al.) being contemplated? I know its a bit older, but is there another reason? ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnurad

Re: [Discuss-gnuradio] Removal of USRP2 support

2011-07-19 Thread Josh Blum
On 07/19/2011 07:50 PM, Brenden Smith wrote: > Quick question: why is the removal of support for the USRP2 (et. al.) being > contemplated? I know its a bit older, but is there another reason? > Nothing to do with age. It has a lot of problems and isnt feature complete. http://code.ettus.com/red

Re: [Discuss-gnuradio] Removal of USRP2 support

2011-07-19 Thread Matt Ettus
On 07/19/2011 08:11 PM, Josh Blum wrote: > > > On 07/19/2011 07:50 PM, Brenden Smith wrote: >> Quick question: why is the removal of support for the USRP2 (et. al.) being >> contemplated? I know its a bit older, but is there another reason? >> > > Nothing to do with age. It has a lot of problems

Re: [Discuss-gnuradio] Removal of USRP2 support

2011-07-19 Thread Johnathan Corgan
On Tue, Jul 19, 2011 at 19:50, Brenden Smith wrote: > Quick question: why is the removal of support for the USRP2 (et. al.) being > contemplated? I know its a bit older, but is there another reason? > "Support for USRP2" is not going away in GNU Radio. Instead, we are migrating our USRP(1 and 2)

[Discuss-gnuradio] UHD Announcement - July 19th 2011

2011-07-19 Thread Josh Blum
Hello list, I have pulled work from the next branch into the master. If you are working from the code in the master branch, you will need to update your FPGA images. In the case of E100 users, this will also require a kernel uImage and kernel modules update. FPGA and firmware images for the maste