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Electronics => Beginners => Topic started by: Guahluh on November 07, 2021, 05:24:33 pm

Title: Generate Chirp Signal using Arduino & Si5351
Post by: Guahluh on November 07, 2021, 05:24:33 pm

Helo everyone,

I allow myself to join you to know if it would be possible to have additional information concerning the Si5351 module.

My need would be to use this module to emit a pseudo-periodic signal (aka chirp) looking like this:

https://www.youtube.com/watch?v=pAUY1FEojjc (https://www.youtube.com/watch?v=pAUY1FEojjc)]
- a chirp between 1 600 Hz and 300 Hz and with a sweep repetition rate of two to four times per second - ?

I already have an Arduino Nano for driving as well as the Si5351 module, but I wanted to get your opinion on my project, because I have trouble finding information regarding the generation of this kind of signal ? Is this already achievable ?

In advance, thank you for your answer.  :-+

Edit.: I just realized my gross mistake concerning the choice of the module, which is clearly not designed to emit these frequencies.
Would you have a better alternative ?  |O |O |O

Title: Re: Generate Chirp Signal using Arduino & Si5351
Post by: radiolistener on November 07, 2021, 07:18:00 pm

it is possible to generate such a sweeping carrier, I was tried it for 145 MHz some time ago when played with si5351. But it was done for SSB modulation. For FM or AM you're needs to add modulator, mixer and filters.