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

[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:
> 
> 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 thinking of ticket:179 
> http://gnuradio.org/trac/ticket/179
> It was fixed in r6764 on the trunk on 10/31/2007.
> 
>> Eric Blossom wrote:
>> > 
>> > 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"
> 
> If you're getting "uO" your machine is not keeping up.  This would
> cause a discontinuity in the received data, post-processed or not.
> 
> Eric
> 
> 
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