Using the CMSIS DSP FFT function the RP2350 can make a 256 point floating 32bit fft in about 300us. The picture show a 10 FFT loop executed 10 time. To reduce overhead.

Yeahhh in a pll filter that’s really tricky problem. I got those kind of trouble once and as a test action I simply replaced all the bom around the pll and it worked :D

Sometime removing a 10k resistor can make your world better !

A raw POCSAG frame. Amazing

Few of my project will benefit of the processor upgrade :)

Continuing testing on the Xiegu X6200, the FT8 receiver is cool but totally gadget, the UI make it impossible to use. I really dream Xiegu releasing open source firmware.

Test in progress... 👀 Un serveur NTP GPS avec sortie configurable 1 PPS / 1 MHz / 10 MHz, alimentation 5V, en test pour faire du numérique en radio portable !

Testing the X6200 from xiegu. Pretty slick but I have a weird tone present at 1.8MHz see picture it’s from internal process.

I received the xiegu x6200 today. I’ll try a field test this week end. First thing I notice they used plastic on the face with connector meaning the foldable support are fixed on plastic… not a great idea

Moi de toute façon j’écoute Q parce que y a cul dans son nom. Franchement si c’est pas une marque de sérieux !