Neville, ZL2BNE, a skilled homebrew radio builder, has developed a Software-Defined Radio (SDR) kit designed for the 40-meter band. This kit offers enthusiasts an opportunity to build and experiment with SDR technology tailored for 40 meters.
Kit Features:
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Complete Components: The kit includes all necessary cables and connectors, such as an audio cable, 9V battery connector, and a BNC to 3.5mm adapter.
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Computer Integration: The SDR’s audio output connects to your computer, leveraging software like HDSDR to process signals.
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Design Origin: Originally published in the May/June 2024 issue of Break-In magazine, the receiver features quadrature outputs compatible with various software supporting I & Q inputs.
Resources for Builders:
The following links detail the background and theory of operation, schematics, gerbers, and build guidelines.
- 1. Break-In May-June 2024
- A pic of a finished V3 SDR Built-up
- A pic of HDSDR in action SDR at work
- 4. 40M SDR V3 Schematic
- 5. Photo Of Components
- Rendering of board
- 7. 40M SDR I-BOM
- 8. 40M SDR Build Notes
- 9. 40M SDR Winding The Toroidal Transformer
- 10. 40M SDR Ver3a Gerbers