| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C | EA5J | 24 | 36.92 % | | 26 | 36.11 % | | 2 | C C D C C C | EA3HET | 17 | 26.15 % | | 19 | 26.39 % | | 3 | C C D C C | DL7BC | 14 | 21.54 % | | 15 | 20.83 % | | 4 | C D C C | R2QA | 6 | 9.23 % | | 7 | 9.72 % | | 5 | D C D C | 9K9A | 1 | 1.54 % | | 2 | 2.78 % | | 6 | C D D C | J42L | 1 | 1.54 % | | 1 | 1.39 % | | 7 | D C D C C | 3V8SS | 1 | 1.54 % | | 1 | 1.39 % | | 8 | C D C C C | R3DCB | 1 | 1.54 % | | 1 | 1.39 % | |
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