Dimension scores are derived from public data and fields; weighted into the composite. Reference only.
jj1bby.com is a personal blog run by Japanese amateur radio operator JJ1BBY, built on Github Pages. The site centers entirely on sharing content related to amateur radio activities, including radio contest logs, operating experience, and equipment modification techniques, and also clearly lays out the blog's QSL card issuing policy.
All content on the blog is completely free to access, and all original content is focused specifically on the niche of amateur radio. It includes entry summaries and statistical analysis for various Japanese amateur radio contests, practical technical tips for building mobile radio equipment, modifying antennas, and using tools, plus industry discussions on radio operating etiquette and contest management. The content draws heavily from the operator's real first-hand experience as an enthusiast, making it highly valuable for fellow hobbyists. The blog's clear QSL issuing policy for different scenarios also fits well with the communication norms of the amateur radio community.
Pros: Niche-focused and highly targeted content, all original, with experience sharing that offers genuine practical reference value; no paywalls anywhere, and the site loads and navigates smoothly.
Cons: The entire site only supports Japanese, which is unfriendly for non-Japanese speakers; update frequency is low, and it functions more as a personal log than a professional information platform; as a personal blog, there is no official customer support.
The site is currently directly accessible from China, no VPN or proxy is required. It is a great reference and learning resource for amateur radio operators and radio contest participants who have a basic command of Japanese.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on jj1bby.com official site.
jj1bby.com is an Japan Forums provider. TG4G tracks its product information, an overall rating of 6.0/10, and a China-accessibility score of China direct-connect friendly. Click "Visit Official Site" to reach jj1bby.com directly.