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 <anis...@umich.edu
<mailto:anis...@umich.edu>> 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
<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
<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
