About the author

The site is written and operated by BI4OAE — a Class C amateur radio licensee based in Shandong, China (ITU Region 3, zone 4).

Credentials

• China Class C amateur radio operation certificate (最高等级操作证书)
• Callsign BI4OAE — B = China, 4 = Region 3 zone 4 (Shandong / Jiangsu / Shanghai)
• Active on HF (shortwave), VHF/UHF and digital modes including FT8 and SSTV

Why this site exists

Most amateur radio material online is either a scanned 1970s manual or a forum thread that assumes you already know the jargon. This site is the middle layer: what the hobby actually looks like when you hold a fresh licence and a radio you have not figured out yet.

Articles are drafted with AI assistance and then revised, fact-checked and expanded by the operator. Measurements, screenshots and on-air logs are the operator's own — that first-hand material is what separates a guide from a summary of a summary.

What is published here

• 36 articles in the English edition (/)
• 80 articles in the Chinese archive (/zh/)

Get in touch

Corrections and questions: contact page. On air, the call is BI4OAE.