I linked <https://drive.google.com/file/d/1xQz1Kp_feAO1YrZRXXnMF25XEGgqVPSw/view?usp=sharing> the grc file in the original email. Attaching it here as well. (Don't know if the mailing list allows attachments)
On Wed, Mar 17, 2021 at 1:40 PM Cinaed Simson <[email protected]> wrote: > > Hi Anish - since this is a gnuradio mailing list, the starting point would > be to post your GRC - which is an yaml or text file. > > -- Cinaed > > On 3/16/21 11:19 PM, Anish Mangal wrote: > > Hi! Any pointers to where I can start debugging this? > > Maybe run gnuradio-companion in debug mode? > Do more simpler tests? > Any other suggestions? > > I have a HackRF One and will try the exact same comparison there too ... > SDRAngel & grc > > On Mon, Mar 15, 2021 at 7:32 PM Anish Mangal <[email protected]> wrote: > >> Hi, >> >> To properly explain the issue I'm facing, I recorded a video showing >> Oscilloscope waveforms. >> >> >> https://drive.google.com/file/d/11anGShu-I3NhL9Jet6YAiyBprvwP4kDc/view?usp=sharing >> >> The gnuradio flowgraph is here: >> >> https://drive.google.com/file/d/1xQz1Kp_feAO1YrZRXXnMF25XEGgqVPSw/view?usp=sharing >> >> The various versions of the software/hardware involved are the following. >> >> gnuradio-companion: 3.8.2.0 (Python 3.6.9) >> gr-limesdr: branch gr-3.8 (last commit >> 47511dd58de1695b70e1028366411bada85eb60f) >> sdrangel: 4.12.1 >> OS: Linux Mint 19.1 >> CPU: Intel© Core™ i7-4900MQ CPU @ 2.80GHz × 4 >> RAM: 16GB >> H/w: Thinkpad T440p >> >> tl;dr >> I'm trying a simple test to create a sinewave output from a WFM modulator >> block. If there is no audio input, its WFM modulated signal should be a >> simple sinewave. If I test this with SDRAngel, I see a clean-ish actual >> sinewave in time domain on the oscilloscope. But if I try to do the same >> with gnuradio, it seems to produce a glitchy signal. >> >> Could I have any advice on what I might be doing wrong? >> >> Thanks, >> Anish // VU2TVE >> > >
limesdr-fm-tx-test.grc
Description: application/gnuradio-grc
