RE: Measuring transmission power from USRP B210

Hi Moses, I would try to reduce the task to something that >must< work and then gradually increase the complexity. * Maybe even start with checking the spectrum analyzer with another signal source. Do you have a programmed calibration (power) offset? * Put a DC block at the input of the

Re: Issue in file sink block

Hello, Adding some more information to the previous mail, that I want to use only receiver part from GNU radio and SDR and my transmitter is different from which I am transmitting modulated signal and received and demodulated using GNU radio. so, when I am doing simulation( using back to back

Ofdm transceiver with more than 16QAM

Hi, I'm trying to make an OFDM transmission of a png file (9.3 kB) with 256QAM with the gnuradio example of OFDM transmitter / receiver. The USRP I'm using is the ettus n210 with the cbx daughter board. With the QPSK and 16QAM modulations it works, but with 64QAM or 256QAM I can´t receive the

Regarding ofdm mod in gnu radio

Hello community, I have currently started using gnu radio for some signal measurement purpose. I want to transmit ofdm signal with the help of gnu through SDR(bladeRF). I got an idea from some tutorials that ofdm mod is needed for transmitting ofdm signal.but I don't have any ofdm mod block on my g

Re: Issue in file sink block

Hi Maitry - okay, then Marcus has already updated you - DPSK Mod is depreciated. That is, it has bugs which can't or won't be fixed and is no longer supported. -- Cinaed On 11/9/20 7:43 PM, Maitry Raval wrote: Hello, I understand that I have use online ASCII to binary converter and for

Re: GRC Documentation tab

Hi Barry, not as far as I know, but well, in which part of software do you need to know that? Best regards, Marcus On 09.11.20 00:50, Barry Duggan wrote: > Using GRC, open the Properties of a block, select the 'Documentation' > tab. Is there a way to get a hook / callback if the user clicks with

Re: Ofdm transceiver with more than 16QAM

Hi. this is a typical question like I'd ask it when talking a student through a test for a digital comms computer lab. So here's a hint: "Constellations with very many points" don't always work. It has to do with SNR. Can you explain what the problem is with low SNR? Best regards, Marcus On 10.1

Re: GRC Documentation tab

Hi Marcus, Here is what I would like to happen: 1) The user has a GRC flowgraph open, clicks on a block, selects Properties, and selects the Documentation tab. 2) The user clicks within the text block of the Documentation tab. It contains the URL of the wiki page for that block, but as far a

Re: Import Block "bad import syntax"

Hi Jim, The tutorial you cited has been deprecated in GR 3.8. Also, it doesn't work as written! At this point we have chosen not to update or correct it. The recommended tutorial is https://wiki.gnuradio.org/index.php/OutOfTreeModules What version of GR do you have on your rPi, and how did y

Re: GRC Documentation tab

First thought was that you could add a hyperlink in the text here: https://github.com/gnuradio/gnuradio/blob/55621a9709b219551b908e67ee88f6f7ad2593cb/grc/gui/PropsDialog.py#L208 but GTK doesn't seem to do that very well. I wouldn't intercept any old dialog click. Users might be trying to cut/past

Re: Issue in file sink block

Hello, I think there is some misunderstanding here, I am using the attached grc file which includes all the ok blocks such as polyphase clock sync, costas loop, CMA equilizer etc for demodulation. Please check the attached file. for the attached grc, I am facing the below issue. I understand