Re: [Discuss-gnuradio] [EXT] Re: Need support for USRP2

[Johannes Demel]

Hi Chesir,

I saw similar behavior with very recent X310s with UBX daughterboards. 
It did help to revert to an earlier UHD version [0]. Maybe the issue is 
related. Maybe it is not.

Cheers
Johannes

[0] https://github.com/EttusResearch/uhd/issues/257

Am 02.04.19 um 16:04 schrieb Chesir, Aaron M.:
> Marcus,
> 
> I mis-spoke: I am using a common **receiver** application, and I am 
> comparing the received spectrum when using either the N21 or the USRP2 
> as the transmitter.
> 
> Attached are the screen shots of the parameters of the UHD USRP Sink 
> block, which is common when using either of the two boxes to transmit 
> (other than the IP address).
> 
> Attached also are the results of executing “uhd_usrp_probe” for each of 
> the two boxes.
> 
> I do not understand why I am seeing a healthy spectrum when receiving 
> from the N210 transmitter, but nothing when receiving from the USRP2 
> transmitter.
> 
> Help.
> 
> Thanks,
> 
> Aaron
> 
> *From:*Marcus D. Leech <address@hidden>
> *Sent:* Tuesday, April 2, 2019 9:34 AM
> *To:* Chesir, Aaron M. <address@hidden>; address@hidden
> *Subject:* Re: [EXT] Re: [Discuss-gnuradio] Need support for USRP2
> 
> On 04/02/2019 09:20 AM, Chesir, Aaron M. wrote:
> 
>     When I generate a known good signal in the ISM band (902 MHz), I can
>     use any other receiver with GRC and a good spectrum will be
>     displayed. When I use the USRP2 with GRC, to receive and
>     characterize energy , GRC offers no complaints, but GRC indicates no
>     reception of any signal energy.
> 
> What daughtercard do you have installed?  What gain setting are you using?
> 
> 
> 
>     *From:*Discuss-gnuradio
>     <address@hidden>
>     <mailto:address@hidden> *On
>     Behalf Of *Marcus D. Leech
>     *Sent:* Tuesday, April 2, 2019 9:06 AM
>     *To:* address@hidden <mailto:address@hidden>
>     *Subject:* [EXT] Re: [Discuss-gnuradio] Need support for USRP2
> 
>     On 04/02/2019 09:00 AM, Chesir, Aaron M. wrote:
> 
>         Folks,
> 
>         Apparently the USRP2 is no longer supported by GNUradio Companion.
> 
>         Do any of you have the source files that would allow one to use
>         gr_modtool to build a GRC block for the USRP2: One to transmit
>         and one to receive?
> 
>         Thanks,
> 
>         Aaron
> 
>     That isn't true.  You can even still use USRP1 with Gnu Radio.
> 
> 
> 
> 
>         *From:* Discuss-gnuradio
>         <address@hidden>
>         <mailto:address@hidden> *On
>         Behalf Of *Neel Pandeya
>         *Sent:* Saturday, March 16, 2019 10:37 PM
>         *To:* address@hidden <mailto:address@hidden>
>         *Cc:* GNURadio Discussion List <address@hidden>
>         <mailto:address@hidden>
>         *Subject:* [EXT] Re: [Discuss-gnuradio] forum to learn more
>         about signal-processing and SDR ?
> 
>         Hello Kristoff:
> 
>         These pages have links to resources that might be helpful to you.
> 
>         https://kb.ettus.com/Suggested_Videos
> 
>         https://kb.ettus.com/Suggested_Reading
> 
>         --Neel Pandeya
> 
>         On Sat, 16 Mar 2019 at 21:01, Ali Dormiani
>         <address@hidden <mailto:address@hidden>> wrote:
> 
>             This book is also a great starting point and reference.
> 
>             Digital Signal Processing by Oppenheim and Schafer
> 
>             Also, here is a fun visual way of getting an alternative
>             understanding of Fourier transforms.
> 
>             https://www.youtube.com/watch?v=spUNpyF58BY
> 
>             Have fun,
> 
>             Ali
> 
>             On Sat, Mar 16, 2019 at 2:24 PM Albin Stigö
>             <address@hidden <mailto:address@hidden>> wrote:
> 
>                 This book is a very good starting point:
> 
>                 http://www.dspguide.com
> 
>                 dsp.stackexchange.com <http://dsp.stackexchange.com> is
>                 a good place for questions.
> 
>                 Good luck.
> 
>                 Albin SM6WJM
> 
>                 On Sat, Mar 16, 2019, 22:20 Kristoff <address@hidden
>                 <mailto:address@hidden>> wrote:
> 
>                     Hi,
> 
> 
>                     One of the reasons I am currently using GNU Radio is
>                     to learn more about
>                     signal-processing and SDR.
> 
>                     As the "discuss-gnuradio" list is about gnuradio
>                     itself, what would be a
>                     good mailing-list, newsgroup or forum to ask more
>                     generic questions
>                     about signal-processing?
> 
> 
> 
> 
>                     Kristoff (ON1ARF)
> 
> 
>                     _______________________________________________
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> 
>                 _______________________________________________
>                 Discuss-gnuradio mailing list
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> 
>             _______________________________________________
>             Discuss-gnuradio mailing list
>             address@hidden <mailto:address@hidden>
>             https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
> 
> 
> 
> 
> 
>         _______________________________________________
> 
>         Discuss-gnuradio mailing list
> 
>         address@hidden  <mailto:address@hidden>
> 
>         https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
> 
>     h
> 
> 
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