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HIgh performance AM/FM RDS software-defined radio signal processing tuner with NXP TEF668X and I2C Arduino Controller for XDR/NXP/TEF GTK user interface
Is it possible to change the steps in 1 khz? Now it is 9 or 10 khz.
But here in the Netherlands there are stations off channel, so that would be nice if possible
Hi,
this "issue" is not an issue with your sketch... just a place to discuss.
I built the following circuit on a 2-sided board where the top side is GND.
Now the problem is that, without antenna connected, a strong local station sounds distorted and with noise (like when it has a weak signal), but when I push the Reset button on the arduino, noise disappears and audio is very crisp. It also happens when the arduino is being programmed from arduino IDE - which holds the atmega in reset as well.
I would very much like to have this reception quality always, not only when pressing the reset button. But everything I tried, failed:
Hello !
I just received module with TEF6686 from aliexpress and created test board using schematic and scripts from this project.
What i got: soft works ! But quality of signal is low (~30 dBf), all options are default.
I use simple wire as antenna - just as on the drawing. Maybe wire is not enough ?
here are pictures of the test board :
Thanks for help !
Hi,
I got a TEF6686 module from aliexpress, hooked it up and it is working.
The module is with TEF6686 v102 (F8602) and looks exactly the same as the photo in this github repository.
There are three versions of NXP-GTK here and I am not sure why and what's the difference between them. However, when I used TEF6686GTK102mp.ino with any version of NXP-GTK, volume slider did nothing (at least nothing audible).
When I used the .ino file from marsel90's repository, volume slider worked OK.
Another question - squelch does not work with either .ino file, is this supported at all by the TEF chip?
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