Re: Is there anything about USRP blocks that breaks them within hier blocks?

On 12/03/2019 09:40 PM, Lukas Haase wrote: Hi, Am I not supposed to put USRP blocks within a hierarchichal block and if so, why? Very strange minimal example (Ettus USRP X310, Windows 10, gnuradio 3.7.13.5): https://paste.pics/8a1cf2b2661fab2bc71b760e369997b9 Works and with a spectrum

Is there anything about USRP blocks that breaks them within hier blocks?

Hi, Am I not supposed to put USRP blocks within a hierarchichal block and if so, why? Very strange minimal example (Ettus USRP X310, Windows 10, gnuradio 3.7.13.5): https://paste.pics/8a1cf2b2661fab2bc71b760e369997b9 Works and with a spectrum analyzer I see the tone at 916 MHz. Then I do

Re: Stream args on UHD USRP Sink

On 12/03/2019 11:26 AM, Müller, Marcus (CEL) wrote: U that's an ancient version of GNU Radio. Do you use any other UHD- linking software, or can you try our new PPA that would give you a modern GNU Radio 3.8.0.0? host_extra_scaling

Re: Stream args on UHD USRP Sink

Yeah, You are right, My initial thougth was, UHD already needs to scale whatever comes in to the DAC range. If it could take in account this extra scaling I could save the constant multiplier block. Best Regards. Em ter, 3 de dez de 2019 15:24, Müller, Marcus (CEL) escreveu: > I'd recommend

Re: Stream args on UHD USRP Sink

On 12/03/2019 01:24 PM, Müller, Marcus (CEL) wrote: I'd recommend not overestimating the workload of scaling outside of UHD – UHD still has to do that multiplication! So, scaling e.g. your constellation or your pulse-shaping filter would make at least as much sense. Indeed, if your flow-graph is

Re: Lunar Orbiting Platform Gateway

Here are the slides from recent ARISS presentations at AMSAT Space Symposium, and a paper presented at IAC about ARISS' view of amateur radio on the Gateway project. The IAC presentation can be downloaded from: https://www.dropbox.com/s/73yhtpmo8nn5x46/IAC%20Gateway%2010-21-19%20Final.pptx?dl=0

Re: gr_modtool crash

Yeah, packaging mishaps happen, and especially with Ubuntu/Canonical mostly grazing uninvolvedly on Mait's effort in the debian space, they sometimes slip by. I'm super thankful Mait is so agile when it comes to fixing the debian packages! On Tue, 2019-12-03 at 17:55 +, César MR wrote: > It

Re: Stream args on UHD USRP Sink

I'd recommend not overestimating the workload of scaling outside of UHD – UHD still has to do that multiplication! So, scaling e.g. your constellation or your pulse-shaping filter would make at least as much sense. On Tue, 2019-12-03 at 14:11 -0300, Wheberth Damascena Dias wrote: > Hi Marcus, I

upgrading to 3.8 (was: Re: Stream args on UHD USRP Sink)

Hi Glen, On Tue, 2019-12-03 at 12:20 -0500, Glen Langston wrote: > Hi > > This is a general question about upgrade to python 3 and gnu radio 3.8. > > We’ve got some custom C++ and Python code that will need to be installed. > The python ran in version 2.7. This is working with gnuradio

RE: gr_modtool crash

It worked! Oddly, newmod didn’t work in a fresh Ubuntu minimal installation. Thank you! De: Maitland Bottoms Enviado: martes, 3 de diciembre de 2019 17:16 Para: César MR; discuss-gnuradio@gnu.org Asunto:

Re: Stream args on UHD USRP Sink

Hi Glen - GR38 provides compatibility with Py27, so your old code should still work there ... once the GR37 specific parts are update to what GR38 requires. From a Python perspective, it should still work. We'd recommend creating a "maint-3.7" branch (or something that makes it clear that the

Re: Stream args on UHD USRP Sink

Hi Marcus, I I am planning to give a try to the GnuRadio 3.8 PPA. We are developing some OOT blocks and some rework may be needed to do so. I will take a look at the code, but I am inclined to change my application to eliminate the need of scaling in real time (scalling the QAM symbols for

Re: Stream args on UHD USRP Sink

Hi Mr. Leech, Thank you for the information. I will look for another route. My aplication currently generates samples with gaussian distribution and unitary variance, fitting pretty much in the {-4.0, 4.0} range. This is why I need the scaling. Regards, Wheberth Em ter, 3 de dez de 2019

Re: Stream args on UHD USRP Sink

Hi This is a general question about upgrade to python 3 and gnu radio 3.8. We’ve got some custom C++ and Python code that will need to be installed. The python ran in version 2.7. This is working with gnuradio companion 3.7.13.4 How difficult a task is upgrading? A day/week/month? Thanks

Re: Stream args on UHD USRP Sink

My recollection is that full_scale applies only for sc8 samples. Gnuradio already scales into {-1.0,+1.0} Sent from my iPhone > On Dec 3, 2019, at 6:47 AM, Wheberth Damascena Dias > wrote: > >  > Hi all, not sure if I should send this here or at USRP list. > > I am trying to set the

Re: Stream args on UHD USRP Sink

U that's an ancient version of GNU Radio. Do you use any other UHD- linking software, or can you try our new PPA that would give you a modern GNU Radio 3.8.0.0? https://launchpad.net/~gnuradio/+archive/ubuntu/gnuradio-releases Anyway, for most USRPs "fullscale" actually should do some

Re: gr_modtool crash

César MR writes: > Hi! I'm trying to follow the tutorial about working with gnuradio in c++, > which can be found in the wiki, but i when i try to run gr_modtool, it crash. > At first i thought that it was because of my language, so i changed my linux > mint language to UK english, but it

Re: Question about phase synchronization with X310 and two UBX 40

Hello Masatetsu Wake-san: I'm excited to hear that you are working with some USRP and GNU Radio users in Japan! Since we're both internal to National Instruments (I'm based in Austin, Texas, USA), let's discuss this question directly, and go from there. --Neel Pandeya On Tue, 3 Dec 2019 at

Stream args on UHD USRP Sink

Hi all, not sure if I should send this here or at USRP list. I am trying to set the "fullscale" as a stream parameter of the USRP Sink block, but it have no effect. The idea is to avoid the use aof one block to scale the samples to [-1.0, +1.0] range May I be missing something? For reference I