Can I change Gnuradio 3.8 to 3.7 ?

2022-02-01 Thread Rachida SAROUI
Hello everyone, I'm working with Gnuradio 3.8 but I need a module that is compatible only with 3.7. Can I change the version of Gnuradio from 3.8 to 3.7? Thank you

Re: Can I change Gnuradio 3.8 to 3.7 ?

2022-02-01 Thread Josh Morman
By change the version, do you mean uninstall GNU Radio 3.8 and install 3.7, or do you mean make the 3.7 modules work with 3.8 - the latter is not possible because the changes in GR from 3.7 to 3.8 were significant and not API compatible. Josh On Tue, Feb 1, 2022 at 4:47 AM Rachida SAROUI wrote:

Re: Can I change Gnuradio 3.8 to 3.7 ?

2022-02-01 Thread Rachida SAROUI
I mean uninstall GNU Radio 3.8 and install 3.7, Envoyé de mon iPhone > Le 1 févr. 2022 à 12:02, Josh Morman a écrit : > > ou mean uninstall GNU Radio 3.8 and install 3.7,

Re: ETTUS N210 spurious

2022-02-01 Thread Steve Hubbard
Sorry for the late reply. I am guessing you are seeing aliases of the audio signal. Sampling a 1 kHz signal at 32 kHz produces aliases around multiples of the 32 kHz. In the signal processing chain the sampling rate will be increased in stages until the DAC sampling rate is reached. This proces

Proper BFSK modulation

2022-02-01 Thread GNU Radio, the Free & Open-Source Toolkit for Software Radio
Hi Community, Since I have no one to verify me, maybe there is someone who would find a minute and verify my flowgraph for the BFSK modulation, demodulation and synchronization. My goal is to wrap bits into packets and create en

Re: ETTUS N210 spurious

2022-02-01 Thread Fabien PELLET
Hello, Thanks for the reply. As I wrote, I try several sampling rate on the baseband I provide to the USRP without any effects on that spurs so it is not related to the sampling rate. I just put a signal source that feeds the USRP sink for that test. It should be EMC related, as far as I und

Re: Can I change Gnuradio 3.8 to 3.7 ?

2022-02-01 Thread Marcus Müller
Dear Rachida, we don't know how you've installed GNU Radio, hence it's impossible to advise how to uninstall it. Chances is: you *really* should not try. I'd personally say: get used to "containers", and use an old Linux distro that ships your desired version of GNU Radio, and install it the di

Re: ETTUS N210 spurious

2022-02-01 Thread Marcus Müller
Hi Steve, hi Fabien, agreed, this might simply insufficient *reconstruction filtering*; note that as Marcus Leech said, 70 dB is quite a lot, and I'd be surprised if an analog reconstruction filter would be much much better. Best regards, Marcus On 01.02.22 12:12, Steve Hubbard wrote: Sorry

Re: ETTUS N210 spurious

2022-02-01 Thread Marcus D. Leech
On 2022-02-01 06:35, Fabien PELLET wrote: Hello, Thanks for the reply. As I wrote, I try several sampling rate on the baseband I provide to the USRP without any effects on that spurs so it is not related to the sampling rate. I just put a signal source that feeds the USRP sink for that test.