Re: [Discuss-gnuradio] Possible residual carrier not reported correctly

2008-07-28 Thread Dan Halperin
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Jul 28, 2008, at 2:09 PM, isaacgerg wrote: Eric, When you talk about the FPGA, do you mean that I can repull and reinstall the FPGA code for the USRP? This I have never done since the radio has been purchased 2 years ago. Isaac The FPG

Re: [Discuss-gnuradio] Possible residual carrier not reported correctly

2008-07-28 Thread isaacgerg
Eric, When you talk about the FPGA, do you mean that I can repull and reinstall the FPGA code for the USRP? This I have never done since the radio has been purchased 2 years ago. Isaac Eric Blossom wrote: > > On Mon, Jul 28, 2008 at 12:27:22PM -0700, isaacgerg wrote: >> >> Eric, >> I pu

Re: [Discuss-gnuradio] Possible residual carrier not reported correctly

2008-07-28 Thread isaacgerg
Eric, I read the ticket. We are just sending float data and it doesnt appear that the arms are getting flipped, but that over time, their phase is changing. Our correlation peaks go from being very positive to being very negative over a gradient. Any ideas? Isaac Eric Blossom wrote: > >

Re: [Discuss-gnuradio] Possible residual carrier not reported correctly

2008-07-28 Thread Eric Blossom
On Mon, Jul 28, 2008 at 12:27:22PM -0700, isaacgerg wrote: > > Eric, > I pulled GNU Radio from the SVN repository no more than 3 months ago. > What do you mean the FPGA had a flipping problem? Wouldnt this affect my > USRP hardware or does the GNU Radio code correct for it? > > Isaac I was th

Re: [Discuss-gnuradio] Possible residual carrier not reported correctly

2008-07-28 Thread isaacgerg
Eric, I pulled GNU Radio from the SVN repository no more than 3 months ago. What do you mean the FPGA had a flipping problem? Wouldnt this affect my USRP hardware or does the GNU Radio code correct for it? Isaac Eric Blossom wrote: > > On Mon, Jul 28, 2008 at 11:34:01AM -0700, isaacgerg wr

Re: [Discuss-gnuradio] Possible residual carrier not reported correctly

2008-07-28 Thread Eric Blossom
On Mon, Jul 28, 2008 at 11:34:01AM -0700, isaacgerg wrote: > > Eric, > I have answered you questions inline: > > >>Are you seeing any over or underruns ("uOuO" or "uUuU") on the console? > Occasionally, I see "u0" on the rx. But, even if i post process data > offline, i still get the "flip" >

Re: [Discuss-gnuradio] Possible residual carrier not reported correctly

2008-07-28 Thread isaacgerg
Eric, I have answered you questions inline: >>Are you seeing any over or underruns ("uOuO" or "uUuU") on the console? Occasionally, I see "u0" on the rx. But, even if i post process data offline, i still get the "flip" >> How wide is the signal you're trying to send? The rx interp is 256 a

Re: [Discuss-gnuradio] Possible residual carrier not reported correctly

2008-07-25 Thread Eric Blossom
On Fri, Jul 25, 2008 at 02:12:38PM -0700, isaacgerg wrote: > > Hi, > I am using the Basic RX/TX at 24Mhz. Both the tx and rx tell me that > there is no residual carrier. yet, the waveform I send seems to keep > flipping from positive to negative polarity. Is it possible that there is > residu

[Discuss-gnuradio] Possible residual carrier not reported correctly

2008-07-25 Thread isaacgerg
Hi, I am using the Basic RX/TX at 24Mhz. Both the tx and rx tell me that there is no residual carrier. yet, the waveform I send seems to keep flipping from positive to negative polarity. Is it possible that there is residual carrier that is not being reported correctly? Thanks in advance. Is

[Discuss-gnuradio] Possible residual carrier not reported correctly

2008-07-25 Thread isaacgerg
Hi, I am using the Basic RX/TX at 24Mhz. Both the tx and rx tell me that there is no residual carrier. yet, the waveform I send seems to keep flipping from positive to negative polarity. Is it possible that there is residual carrier that is not being reported correctly? Thanks in advance. Is