Dokumentation DIY Transceiver: Types of transceivers Analog bandpassfilter Crystal filters Digital Filters Mixers_1 Mixers_2 Pre-Amplifier Power-Amplifier Documentation Filter Theory & Design: Introduction to electronic filters Active filters Digital Filters Software: Digital Filter IIR on STM32F4 Discovery with PmodI2S2 Transceiver CPU on STM32F735DK with TouchGFX Schematics: Crystal Filter Board Bandpass Board Mic amplifier and two tone […]