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Exercising with creating RF shields :)

Not perfect but acceptable. Too much solder, it doesn’t look cool, but does not interfere with work 🙂

BPF: LPF:

Frequency response: SFDR: https://github.com/enthru/Arduino-AD9851-DDS-Direct-Digital-synthesizer-Signal-Generator

https://github.com/enthru/Arduino-AD9851-DDS-Direct-Digital-synthesizer-Signal-Generator

2 ADCs (only one with LNA), 4 layers board, not tested yet: https://oshwlab.com/neuroworker/redqmtechadc