Re: [Discuss-gnuradio] Spurious Signals and DC Offset

2005-12-08 Thread Matt Ettus
> 1) noise_ave_pwr.jpg > * normalized average power over time > * is there any reason why the power would start high then go low? The first samples could be corrupted because the pipeline may not be cleared. Drop the first samples > 2) noise_ave_psd.jpg > * average PSD of a chun

[Discuss-gnuradio] Re: Bug due to halfband and Why are the resets removed

2005-12-08 Thread Eric Blossom
On Thu, Dec 08, 2005 at 06:46:57PM +0100, Martin Dvh wrote: > Eric Blossom wrote: > > We also had a problem where one of the resets was > > resetting the register that contained the resets... That was why > > initializing the Rx was hosing the Tx, or vice-versa (don't recall > > which way it wen

[Discuss-gnuradio] Re: Bug due to halfband and Why are the resets removed

2005-12-08 Thread Martin Dvh
Eric Blossom wrote: > On Thu, Dec 08, 2005 at 04:54:16PM +0100, Martin Dvh wrote: > >>The new halfbandfilter stuff broke the debug_counter. >>I think this minipatch is the solution. >>I found this because I also use a counter in the fpga and it broke when I >>updated my sourcetree. > > > Thanks

[Discuss-gnuradio] Re: Bug due to halfband and Why are the resets removed

2005-12-08 Thread Eric Blossom
On Thu, Dec 08, 2005 at 04:54:16PM +0100, Martin Dvh wrote: > The new halfbandfilter stuff broke the debug_counter. > I think this minipatch is the solution. > I found this because I also use a counter in the fpga and it broke when I > updated my sourcetree. Thanks! > I also wonder why all the r

Re: [Discuss-gnuradio] Multiple USRPs

2005-12-08 Thread Robert McGwier
MEA CULPA! I did miss it. We are in complete agreement. Bob Martin Dvh wrote: Robert McGwier wrote: This is not quite right. The DIFFERENT oscillators on the USRP boards have different frequencies and thus constantly changing phase angle with respect to each other and with probability

Re: [Discuss-gnuradio] Multiple USRPs

2005-12-08 Thread Robert McGwier
In addition to Matt's answer let me add a few remarks. A few years ago, while working with Tom Clark at Goddard Space Flight Center (Tom is an astrophysicist), I was asked to look at some Kalman Filtering routines for his VLBI work. MANY years later, I desperately needed to make widely pl

[Discuss-gnuradio] Bug due to halfband and Why are the resets removed

2005-12-08 Thread Martin Dvh
The new halfbandfilter stuff broke the debug_counter. I think this minipatch is the solution. I found this because I also use a counter in the fpga and it broke when I updated my sourcetree. I also wonder why all the resets are removed. Are all the registers reset in another way now? Greetings,

Re: [Discuss-gnuradio] Viewing square wave in usrp_oscope

2005-12-08 Thread [EMAIL PROTECTED]
On Wed, Dec 07, 2005 at 08:39:01PM +, sudhindra aithal kota wrote: > Hi, > In my mail I have mentioned that I did try with > frequencies greater than 100Khz. But the behaviour was > the same as I had originally reported. > > Regards > Sudhindra Did you try and turn off the automatic dc offs

RE: [Discuss-gnuradio] USRP Update

2005-12-08 Thread Weber, Michael J. \(US SSA\)
Ah, that makes sense! Thanks for the clue-in. BTW, I didn't see your response come though the list... does the list engine not send one emails already cc'd to one? Thanks, Mike > -Original Message- > From: Matt Ettus [mailto:[EMAIL PROTECTED] > Sent: Tuesday, December 06, 2005 4:51 PM

Re: [Discuss-gnuradio] Multiple USRPs

2005-12-08 Thread Martin Dvh
Robert McGwier wrote: > This is not quite right. The DIFFERENT oscillators on the USRP boards > have different frequencies and thus constantly changing phase angle with > respect to each other and with probability 1, the frequencies of both > oscillators will change with changing temp, air flow, e