Build duinovox/voxduino digital modes interface

There's a lot of digital modes interface in amatuer world from exprenvies to cheapest one. for aprs, ft8 and anything else. i found a excelent writing about digital interface. here's one of them: https://kb9rlw.blogspot.com/2016/08/cheap-and-easy-to-build-digital-modes.html i designed layout based on schematic from that site. sadly, my digital interface project was postponed.…

Oscilloscope (DSO2D10) and Function Generator (FY6900)

I bought cheap oscilloscope and function generator fiew months a go. I used it as prototyping filter mostly (low pass filter, high pass filter, band pass filter). eventhough it's cheap, it's enough for my needs. it's a good investment for electronic enthusiast. complete feature and the important things it's affordable.