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Details are on my blog and GITHUB

A project log for DIY Airband Receiver with Hybrid RF Front-End

Ardiuno on ATmega328P/ESP32-C3/RASP PP is controling Si4732, Si5351a, and TA2003.

nobchanobcha 06/03/2026 at 08:290 Comments

Detailed source code, assembly manual, and full schematic analysis are archived on my tech blog: [https://nobcha23.hatenadiary.com/entry/2024/09/04/201324],[https://github.com/Nobcha/R909-SDR/tree/main/R909_manual03_en.pdf],[https://github.com/Nobcha/R909-SDR/blob/main/R909-DSP3_test1.ino]

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