The Simplest FT8 Transceiver You’ll Ever Build – It may only be 100mW Output But FT8 Is Designed Specifically For Weak Signal Modes
Its brains are a Teensy 3.6, while the receiver side is a Si4735 receiver chip and the transmitter is a Si5351 programmable clock chip driving a Mini-Circuits GVA84 power amplifier with an appropriate filter. The interface is via a touchscreen display. It relies on existing work that applies a patch on-the-fly to the Si4735 receiver...
