433mHz low power radio beacon

The Chiron 3 rocket has two emergency beacons that operate for several days. One in the nose cone and one in a 3d printed shroud on the outside of the coupler section.

An Atmel  328p microprocessor awakes from hibernation every few seconds and generates a tone for 100ms . This low duty-cycle allowes for the extended duration.

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STX882 and 328p glued together.

 

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Transmitter module, lipo battery and external connectors in a 3d printed ABS shroud.

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3d printer shroud on the outside of the coupler section.

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