Re: [Discuss-gnuradio] Discuss-gnuradio Digest, Vol 102, Issue 11

2011-05-10 Thread Bruce McGuffin
Martin Braun wrote On Mon, May 09, 2011 at 11:33:32AM -0700, Colby Boyer wrote: One of big reasons I think that people struggle with GNURadio is that is jams so many different fields of expertise into one package. 1. Digital Comms people (aka the Maths people) cannot program themselves out of

Re: [Discuss-gnuradio] start_rx_streaming_at patch

2009-09-18 Thread Bruce McGuffin
Doug And what is VRT code? I googled VRT, but the choices I got were: Vestibular Rehabilitation Therapy Vulnerability Research Team Vlaamse Radio- en Televisieomroep (my personal favorite) or Video Round Table Bruce Douglas Geiger wrote: Bruce, In the firmware directory the

Re: [Discuss-gnuradio] start_rx_streaming_at patch

2009-09-17 Thread Bruce McGuffin
an underscore for the period. Doug On Thu, Sep 17, 2009 at 11:28 AM, Bruce McGuffin mcguf...@ll.mit.edu wrote: Hi A while ago, Doug Geiger wrote on this group that he had written a patch to create a function start_rx_streaming_at, which is like start_rx_streaming but begins at a specified time

Re: [Discuss-gnuradio] start_rx_streaming_at patch

2009-09-17 Thread Bruce McGuffin
Doug What I really want most right now, is a usrp2 function that resets all the buffers, data storage, counters, etc at the start of a data collect. Does start_rx_streaming_at do that? (Later I'll also need it to allow me to set the start time.) And how is the start time specified? Is it just

[Discuss-gnuradio] USRP2 Filtering/Decimation Question

2009-09-04 Thread Bruce McGuffin
Hi When I specify a particular receiver decimation rate for the USRP2, the task of decimating is presumably split up between the CIC and two half-band filters. My question is how is the task split up, and where in the code does this happen? Bruce

Re: [Discuss-gnuradio] USRP2 Filtering/Decimation Question

2009-09-04 Thread Bruce McGuffin
Matt Ettus wrote: Bruce McGuffin wrote: Hi When I specify a particular receiver decimation rate for the USRP2, the task of decimating is presumably split up between the CIC and two half-band filters. My question is how is the task split up, and where in the code does this happen

Re: [Discuss-gnuradio] Half-Band Filter Module Output Clipping?

2009-09-03 Thread Bruce McGuffin
Matt Ettus wrote: Bruce McGuffin wrote: Hi I've been looking at the USRP2 filter characteristics, to see if it will work for me. After going through the half-band filter code (hb_dec.v from gnu-radio 3.2) I understand what the filter coefficients are, but I have a question about

[Discuss-gnuradio] Half-Band Filter Module Output Clipping?

2009-09-02 Thread Bruce McGuffin
Hi I've been looking at the USRP2 filter characteristics, to see if it will work for me. After going through the half-band filter code (hb_dec.v from gnu-radio 3.2) I understand what the filter coefficients are, but I have a question about the output from this module. Near the end of the

Re: Re: [Discuss-gnuradio] MIMO Question

2009-08-17 Thread Bruce McGuffin
Eric Blossom wrote: On Fri, Aug 14, 2009 at 04:55:56PM -0400, Bruce McGuffin wrote: A while ago (Nov. 14, 2008) Matt talked about using a USRP2 with two antennas and two external radio receivers driving the basicRx. My question is, is it possible to do that if the external radio

[Discuss-gnuradio] MIMO Question

2009-08-14 Thread Bruce McGuffin
A while ago (Nov. 14, 2008) Matt talked about using a USRP2 with two antennas and two external radio receivers driving the basicRx. My question is, is it possible to do that if the external radio IF and bandwidth are too high to sample at 25 MHz without mixing the signal to a lower freqeuncy

Re: [Discuss-gnuradio] Installing Gnu Radio 3.2 on centOS machine

2009-02-26 Thread Bruce McGuffin
24, 2009 at 2:08 PM, Bruce McGuffin mcguf...@ll.mit.edu wrote: Does anybody know what the problem is? What is compile-mbh.scm, and why wasn't it part of the gnu radio download? You've found a bug in the tarball generation for release 3.2rc0, thanks. It's easily fixed, but we're not quite

Re: [Discuss-gnuradio] Installing Gnu Radio 3.2 on centOS machine

2009-02-26 Thread Bruce McGuffin
gr-comedi gr-qtgui grc These components will not be built Johnathan Corgan wrote: On Thu, Feb 26, 2009 at 12:14 PM, Bruce McGuffin mcguf...@ll.mit.edu wrote: (for some reason our firewall doesn't like SVN). Many don't. Subversion uses portions of the HTTP spec that aren't frequently