Uploaded January 2026 | Updated September 2026, 2 weeks ago

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buymeacoffee.com/techminds_matt

In this video we use an Si5351 to transmit a WSPR signal around the world, all controlled from an ESP32.

Si5351
UK: amzn.to/3NM5uQk
US: amzn.to/4qOQD5X
AliExpress: https://s.click.aliexpress.com/e/_c4mkVdPZ

ESP32-S3
UK: amzn.to/4sDV05G
US: amzn.to/49By4v1
AliExpress: https://s.click.aliexpress.com/e/_c3Uh2zyx

2W RF Amplifier
UK: amzn.to/4sHx9Ce
US:amzn.to/4jKjeHt
AliExxpress: https://s.click.aliexpress.com/e/_c3ZN7Ver

Obtain Source Code Here:
github.com/TechMindsYT/esp32WSPR

Grab an AliExpress Discount Code:
👉 https://s.click.aliexpress.com/e/_c3KG3aQd

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