Quantity   Component name
1 × Raspberry Pi Zero
1 × 20m LPF board See this project log: https://hackaday.io/project/9484-the-australia-project/log/31421-lpf-design
1 × 1:1 balun See this project log: https://hackaday.io/project/9484-the-australia-project/log/31606-balun-design and this project log: https://hackaday.io/project/9484-the-australia-project/log/31744-and-lo-a-balun-appeared
1 × 20m Moxon beam See this project log for calculated dimensions: https://hackaday.io/project/9484-the-australia-project/log/31363-moxon-calculations