Discovered an antenna with a strange name! Testing the donut antenna.
I found an antenna with the interesting name "donut antenna" on AliExpress, so I bought a red one for medium wave and a blue one for short wave. It seems to be a tuning circuit that combines a coil printed on a donut-shaped circuit board with a variable capacitor. It arrived from Shenzhen after about five days of waiting. I installed this antenna on the Si4732 DSP radio I created last time and tried receiving distant signals. *You can view the detailed content of the blog through the related links. For more information, please feel free to contact us.*
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Our company engages in the planning, design, development, and operation of IoT solutions, as well as consulting related to ICT. In order to integrate IT more naturally and deeply into society, we will continue to explore and provide suitable solutions in collaboration with our customers, utilizing software, hardware, and cloud/internet technologies. Please feel free to contact us if you have any requests.
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