Database of ham radio stations in Japan JJ1WTL's English language License Data Search enables you to look up the license details of over 421,000 Amateur Radio stations in Japan The entire database is also available as a CSV file for download to a spreadsheet, see http://motobayashi.net/callsign/licensesearch.html An explanation, in English, of Japan's call sign system can be found at http://motobayashi.net/callsign/ Japan has four classes of amateur radio license. The entry level is Class 4 which permits operation with 10 watts output on LW/MW and HF bands, 20 watts on VHF/UHF bands and lower power levels in the Microwave amd Millimetric bands. Class 4 is set just below the level of UK Foundation requiring about 10 hours of tuition before the 24 question multiple-choice exam which has a typical pass rate of 98%. Unlike the UK there are no Practical Assessments. http://www.southgatearc.org/news/2019/september/database-of-ham-radio-stations-in-japan.htm