Re: GPIO lines on RPi4

I am definitely not knowledgeable about Python so I might be missing the basics: as I want to include a TCP server for tuning the acquisition parameters, it seems to me (but I might be wrong) that the Python Module is more appropriate than the Python Snippet which seems to add a piece of code to th

Re: [announcement] master: SWIG -> Pybind11 (breaks OOT interface)

Thank you Marcus for the merge, the introduction, and the warnings :) For all the Ubuntu users - the GNU Radio Master PPA has been updated with builds pulled from the latest master, so it now includes the pybind11 bindings, and OOTs will need to start migrating to the new python binding structur

Re: [USRP-users] NEED HELP: RFNoC OOT tutorial

Hello Cherif, I followed the same tutorial, it is the same as in AN here: https://kb.ettus.com/Getting_Started_with_RFNoC_Development But, uhd 4.0 mentioned in there is the pybombs recipes, I am not sure which source used to built these recipes, but I guess it should be uhd rfnoc-devel branch

Re: Calculating SNR of an incoming signal

Hi Alex, your cut-off frequency needs to be lower than half your sampling rate. If your sampling rate is 61.44MHz, your maximum cut-off frequency can be 30.72MHz. And it should probably be a bit lower. You're working in baseband here. It is really important to understand the concepts of digita

NEED HELP: RFNoC OOT tutorial

Hello Guys, I am following the rfnoc getting started tutorial, to develop a gain block. I am using the following branches of UHD, gr-ettus, gnuradio. UHD - 3.15 LTS gr-ettus - maint-3.8 gnuradio - maint-3.8 All installed in a custom prefix without using pybombs: ~/workspace/installs/stable I

Starting and stopping a flowgraph via XMLRPC Server

Dear All, I use the XMLRPC Server to control several variables on the flowgraph remotely. What I don't know is how to start, stop the flowgraph. (The documentation says its possible) Which commands should I send to the server? tb.start, tb.stop ??? Many thanks in advance

Re: Calculating SNR of an incoming signal

Right, because the filter cutoff frequency needs to be at least half the sampling rate, I figured I would not be able to use a filter since the bladeRF I will be using has a 61.44 MHz sampling rate and I will be operating in the GHz range. What I will probably end up having to do is do a pre-run c

Re: Problems with the GNU WiFi and the USRP B210

So I'll agree here, I would not have opened your docx file if Marcus had not already opened it. To everyone on the mailing list, please avoid attaching documents, but if you must, please only use PDF. And if you have lots of output or code or something, please use Pastebin or something like that,

Re: .docx attachments (was Problems with the GNU WiFi and the USRP B210)

I too had the same immediate reaction, and did not look at the file. For what its worth, I ran it through Jotti's Malware scanner, and it found nothing suspicious. @(^.^)@ Ed On 6/26/20 4:12 AM, Johannes Demel wrote: Hi Silvio, please do not send docx Files. After reading Marcus answer, I a

gr-satellites

Hi to the list, Anybody on this group that uses Daniel Estevez gr-satellites? I need some advice please 73 de Enzo IK8OZV EasyLog 5 BetaTester EasyLog PDA BetaTester WinBollet BetaTester D.C.I. CheckPoint Regione Campania Skype: ik8ozv8520 * *

Re: Calculating SNR of an incoming signal

Hi Alex, "0 < fa <= sampling_rate/2" is correct and should always be enforced. If you try to set your filter cut-off frequency at >= samp_rate/2, you'll experience aliasing. After reading your mails, I get the impression you try to set your filter cut-off frequency at your carrier frequency

Re: Problems with the GNU WiFi and the USRP B210

Hi Silvio, please do not send docx Files. After reading Marcus answer, I assume your file contains valid info. But I thought this was just a spam or phishing mail. I'd totally expect some malicious macro in such a file. I see such malicious attachments regularly going through my spam filter.