| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | DL6MHW | 10 | 34.48 % | | 10 | 34.48 % | | 2 | C C D C C | DH9JK | 9 | 31.03 % | | 9 | 31.03 % | | 3 | C C D C | RD9U | 5 | 17.24 % | | 5 | 17.24 % | | 4 | C D C C | R7YG | 2 | 6.90 % | | 2 | 6.90 % | | 5 | C D D C C | A71AE | 2 | 6.90 % | | 2 | 6.90 % | | 6 | D C D C C C | 5B4AIF | 1 | 3.45 % | | 1 | 3.45 % | |
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