WSPR beacon on Arduino + si5351

This multimode beacon is based on Arduino + si5351 module.

Project sources on github https://github.com/alexander-sholohov/si5351-beacon

Supported modes:

• WSPR2
• WSPR15
• JT65
• JT9
• JT4
• ISCAT

Key features:

• Internal encoder for WSPR and ISCAT.
• Simple "in code configuration".
• Useful online mode configurator (link).
• TX start is controlled by extremely accurate I2C real-time clock Ds3231.
• Terminal-based command line interface.
• Support band-hopping with LPF auto selection.
• Pin-compliant with QRP-LABS arduino shield and relay-switch board.

Block diagram

Breadboard mount

Arduino-shild and LPF from QRP-LABS.

Terminal example

Board layout

CW beacon based on Si4463 + Arduino

It is very simple VHF/UHF arduino based CW beacon.
Description and sources on github: https://github.com/alexander-sholohov/si4463-beacon

Working device set:

Breadboard layout:

How RZ9YQ is receiving this beacon:

Discussion thread on Russian forum 22dx.ru