| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C | CR3DX | 65 | 30.81 % | | 65 | 30.81 % | | 2 | C C D C | DC6K | 62 | 29.38 % | | 62 | 29.38 % | | 3 | C C D C C C | DL1DAW | 56 | 26.54 % | | 56 | 26.54 % | | 4 | C D C C C | F6AGM | 7 | 3.32 % | | 7 | 3.32 % | | 5 | C D C C | E7CW | 5 | 2.37 % | | 5 | 2.37 % | | 6 | C D D C | E79D | 5 | 2.37 % | | 5 | 2.37 % | | 7 | D C D C | 4U1A | 2 | 0.95 % | | 2 | 0.95 % | | 8 | D C D C C | 9A3JH | 2 | 0.95 % | | 2 | 0.95 % | | 9 | C D D C C | E77EA | 2 | 0.95 % | | 2 | 0.95 % | | 10 | D C D D D C | 9A925T | 1 | 0.47 % | | 1 | 0.47 % | | 11 | C C D D D D C | DL2025B | 1 | 0.47 % | | 1 | 0.47 % | | 12 | C C D / C C D C C | IT9/DK6XZ | 1 | 0.47 % | | 1 | 0.47 % | | 13 | C C / C C D C C | ON/DL4JU | 1 | 0.47 % | | 1 | 0.47 % | | 14 | C D C | P3X | 1 | 0.47 % | | 1 | 0.47 % | |
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