Re: [Discuss-gnuradio] Problems with the current GIT source for Gnu Radio

Guys, It's about the same error that Greg and me described in another email. I'm running Ubuntu 10.04 i386. Regards, Ronaldo On Sat, Sep 3, 2011 at 10:02 PM, Marcus D. Leech wrote: > On 09/03/2011 08:35 PM, Tom Rondeau wrote: > > On Sat, Sep 3, 2011 at 6:19 PM, Marcus D. Leech wrote: >> >> In

Re: [Discuss-gnuradio] Installation problem

Greg, As you can read on my last message, the "trick" didn't work for me. I saw that you're running the "Fedora/Ubuntu Installation script", I also try it, but the same error occurs to me. About the community, yes they are such good people! They helped me a lot in the past. Marcus, I agree with

Re: [Discuss-gnuradio] Installation problem

Greg, I'm getting the same error. I read in another forum that this problem is solved changing the LD_LIBRARY_PATH value: export LD_LIBRARY_PATH="/usr/local/lib:/usr/lib:$LD_LIBRARY_PATH" But, I've try it with no effect. I'm on Ubuntu 10.04. Thanks in advance, Ronaldo On Sat, Sep 3, 2011 at 2

Re: [Discuss-gnuradio] GNU Radio code walkthrough

Dear Adib, Very good initiative! If you need some help, fell free to ask for. Regards, Ronaldo On Mon, Jun 27, 2011 at 9:43 AM, adib_sairi wrote: > > Dear GNU Radio community, > > I and my group had this tutorial/code walkthrough to share. we found out > that it is quite hard for beginner to

Re: [Discuss-gnuradio] Getting started and documentation beyond dialtone.py ?

Hello, Madengr! First, you made an excellent investment! The USRP2 is a very powerful peripheral to get introduced to the SDR world. By the way, I want to write a little documentation about his architecture (explaining what's implemented in the FPGA, how it communicates to the host and etc.) Ther

Re: [Discuss-gnuradio] USRP2 modulated signal tx error

Hi Eric, Sorry for not reply earlier. I've tried your solution but the error persists. I will work on the code this morning. If I get positive results I'll send you. Thanks for all help. Ronaldo > Ronaldo, > > Can you please check out, build and install this developer branch and > let me know

Re: [Discuss-gnuradio] USRP2 modulated signal tx error

2009 at 04:03:36PM -0300, Ronaldo Nunez wrote: >> Hi folks, >> >> I tried to TX a FM modulated signal using USRP2 BasicTX. >> The signal was a 440 Hz sinusoid, and the carrier 1 MHz. >> I used the signal generator and fm modulator blocks provided by GNURadio. >> &

[Discuss-gnuradio] USRP2 modulated signal tx error

Hi folks, I tried to TX a FM modulated signal using USRP2 BasicTX. The signal was a 440 Hz sinusoid, and the carrier 1 MHz. I used the signal generator and fm modulator blocks provided by GNURadio. When I tx it the follow message appeared on the screen: USRP2::Tx_RAW: FIXME: short packet: 1 item

Re: [Discuss-gnuradio] USRP2 - BasicTX first Nyquist zone frequencies

Hi Eric, I solved the problem using your suggestion. I changed the line 76 at u2_init.c: from: ad9777_write_reg(1, R1_INTERP_4X | R1_REAL_MIX); to: ad9777_write_reg(1, 0xB0 | R1_REAL_MIX); Then, I was able to tx frequencies higher than 50 MHz - [50,100] MHz. Thanks a lot! :D

Re: [Discuss-gnuradio] USRP2 - BasicTX first Nyquist zone frequencies

Thanks Eric, I will try your suggestion, if I get it I will share the information with the community. Regards, Ronaldo 2009/3/16 Eric Blossom : > On Mon, Mar 16, 2009 at 07:04:11PM -0300, Ronaldo Nunez wrote: >> Hi Eric, >> >> i felt like you when I read it, but take

Re: [Discuss-gnuradio] USRP2 - BasicTX first Nyquist zone frequencies

05:28AM -0300, Ronaldo Nunez wrote: >> Hello, >> >> I read in faq that the bigger frequency of the first Nyquist zone of >> USRP2 is about 170 MHz, using a BasicTX daughter board. >> My USRP2 couldn't get more than 50 MHz with this daughter board. >> >&g

[Discuss-gnuradio] USRP2 - BasicTX first Nyquist zone frequencies

Hello, I read in faq that the bigger frequency of the first Nyquist zone of USRP2 is about 170 MHz, using a BasicTX daughter board. My USRP2 couldn't get more than 50 MHz with this daughter board. I'm using 9939 firmware revision. Somebody observed the same problem with usrp2? There is a way to

[Discuss-gnuradio] Up conversion on USRP2 questions

Community, I've read all the faq and a lot of code (some codes i couldn't understand, I learning c++ and verilog yet...) about USRP2, but I also have doubts. They are, 1 - Is the DUC fully implemented in FPGA? 2 - Is the "complex modulation function"[page 38, AD9777 datasheet] used? 3- The func

[Discuss-gnuradio] A good computer to use with USRP2...

Hello Community, We will buy a new computer to program our USRP2... I would like to know what are the minimum requisites for USRP2? I read in FAQ that a Gigabit Ethernet adapter is essencial... How about the processor? Regards, -- __ Ronaldo A. Viera Nunez Acadê

Re: [Discuss-gnuradio] Tx path diagram

gards, Ronaldo 2009/1/21 Eric Blossom : > On Mon, Jan 19, 2009 at 09:02:18AM -0200, Ronaldo Nunez wrote: >> Hello GnuRadio community, >> >> I made a transmission path diagram to try to understand how USRP works. >> I'm not sure if it's right, if somebody can

[Discuss-gnuradio] Tx path diagram

Hello GnuRadio community, I made a transmission path diagram to try to understand how USRP works. I'm not sure if it's right, if somebody can correct it, it will be great! :D To debug the diagram I used these parameters, but I didn't get the right output (using USRP v1 and BasicTX d'board). ## D

Re: [Discuss-gnuradio] BasicTX PLL and some TX doubts

ssom > On Wed, Jan 14, 2009 at 12:31:30AM -0200, Ronaldo Nunez wrote: > > Thank you for your answer Mr. Blossom, > > > > > Please read the USRP FAQ then ask again if you're still not clear. > > > > >http://gnuradio.org/trac/wiki/UsrpFAQ< > http:/

Re: [Discuss-gnuradio] BasicTX PLL and some TX doubts

nent to tune at a frequency...Should FPGA do tune job for the basicTX? Please, be free to correct my affirmations... Sorry my poor English (and my ignorance) , thanks all! Ronaldo 2009/1/13 Eric Blossom > On Tue, Jan 13, 2009 at 05:19:32PM -0200, Ronaldo Nunez wrote: > > Hello community, &

[Discuss-gnuradio] BasicTX PLL and some TX doubts

Hello community, I'm trying to understand how signals are transmitted by the USRP with a basicTX. I studied a lot about Quadrature Modulation, Single Sideband transmission... and I've read all the available documentation about USRP and GNUradio. Eric and other guys have helped me, but some doubts

Re: [Discuss-gnuradio] Daughter Boards frequencies

Thank you Eric, I got it! ;) 2009/1/8 Eric Blossom > On Thu, Jan 08, 2009 at 10:25:34AM -0200, Ronaldo Nunez wrote: > > Sorry my ignorance, I revised my question and i was not clearly... > > > > There is a condition on line 1008 in usrp_standard.cc code. That > con

Re: [Discuss-gnuradio] Daughter Boards frequencies

x27;t allow to tune up it more than 44 MHz? (Sorry my poor english, I'm learning yet...) Thank you a lot, Ronaldo 2009/1/7 Ronaldo Nunez > Than you Sebastiaan and Brian, I think that I understood it now. > I'm not sure but I think cordic is not available on tx path, is it? >

Re: [Discuss-gnuradio] Daughter Boards frequencies

mix it down to DC on the FPGA. > > With the TVRX cards there is a tuner that downconverts a high > frequency signal (FM,UHF,VHF) down to somewhere below 64MHz (depending > on which TVRX revision you have). > > Sebastiaan > > On Wed, Jan 7, 2009 at 8:17 PM, Ronaldo Nunez > w

[Discuss-gnuradio] Daughter Boards frequencies

Hello Community, I read in the faq and in the usrp_stardard.cc that RF frequencies higher than 44MHz can't be tuned in URSP, so how BasicTX, and other daughter boards can tune hundreds, thousands of MHz ? Thank you all, Regards... -- __ Ronaldo A. Viera Nunez Aca

Re: [Discuss-gnuradio] Tx path questions

be converted to analog (DAC) and amplified and transmitted. Be free to correct me, I need to know exactly how USRP and GNUradio works. Thanks for all! Best regards, Ronaldo Nunez 2009/1/5 Eric Blossom > On Mon, Jan 05, 2009 at 09:48:47AM -0300, Ronaldo Nunez wrote: > > Hello, >

[Discuss-gnuradio] Tx path questions

Hello, I have a doubt about coarse modulation in AD9862 (tx path). I saw in the faq (http://gnuradio.org/trac/wiki/UsrpFAQ/ADC) "...Block B only moves the signal +/- fs/4 or fs/8"... OK, but when it moves fs/4 and when it moves fs/8? Is that controllable by software? Another question: Is the DA

[Discuss-gnuradio] Help with USRP

Hello everybody! I have series of questions dealing with GNU Radio / USRP. I am trying to tx a controlled simple sine signal using a USRP v1. The specs I am using are: * SIN Frequency: 1 MHz * SIN Amplitude: 16k (not relevant in my case for now) * SIN Sample Frequency = dac_rate/interpolation_rat

[Discuss-gnuradio] scipy functions on gnuradio

Hello, I would like to know if can I use scipy functions, or another python package functions, into gnuradio? How can I do that? Thanks -- __ Ronaldo A. Viera Nunez Acadêmico/Engenharia Elétrica Universidade Federal de Santa Maria Santa Maria - RS - Brasil _

[Discuss-gnuradio] USRp clock sync

Hello, Can I get the clock signal from the usrp? I know that I can get it via hardware, but, it's possible to do this via software? For example, if I create a counter, wich just increment a number on a USRP clock rise or fall. It's possible to do this on GNUradio? Thank you all, -- ___

[Discuss-gnuradio] d_nco object information

Hello, My name is Ronaldo, and I'm trying to write my own signal processing blocks. I would like to write a signal generator block, I know the GNUradio already has a signal generator, but I think that the best way to learn is write my own signal generator block. So I was investigating the file "gr