Disclaimer
Not professional advice
The content on this site is published for general information and hobby education. It is not legal, regulatory or engineering advice. Amateur radio licensing, permitted power levels, band edges and equipment type-approval rules differ by country and change over time.
Always check the rules that apply where you live — for China, the national radio regulations and the requirements published by the provincial radio management office; elsewhere, your national regulator. Where this site states a rule, the source is cited so you can verify it against the current text.
Safety
Antenna work involves heights, high voltage and RF exposure. Follow the manufacturer's instructions, use appropriate fall protection, and never place an antenna where a failure could bring it into contact with power lines. Nothing on this site should be read as an instruction to work unsafely.
Accuracy
Every effort is made to keep articles accurate and to list sources, but errors are possible. If you find one, please report it via the contact page — corrections are applied and credited.
External links
Links to third-party sites are provided for reference. This site does not control their content and is not responsible for it.
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