| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | CT1FOQ | 138 | 43.13 % | | 182 | 40.53 % | | 2 | C C D C C | DC1YL | 103 | 32.19 % | | 139 | 30.96 % | | 3 | C C D C | CR5O | 33 | 10.31 % | | 58 | 12.92 % | | 4 | C D C C C | F4FDR | 15 | 4.69 % | | 18 | 4.01 % | | 5 | C D C C | F5QJ | 12 | 3.75 % | | 18 | 4.01 % | | 6 | C D D C C | C37AC | 4 | 1.25 % | | 5 | 1.11 % | | 7 | C D C | G1P | 3 | 0.94 % | | 5 | 1.11 % | | 8 | C D D C | S52W | 2 | 0.63 % | | 2 | 0.45 % | | 9 | D C D C C | 4Z5FI | 2 | 0.63 % | | 3 | 0.67 % | | 10 | C C D D C C C | DP75ALF | 2 | 0.63 % | | 2 | 0.45 % | | 11 | D C D C | 9A7B | 1 | 0.31 % | | 2 | 0.45 % | | 12 | D C D C C C | 2E0INN | 1 | 0.31 % | | 1 | 0.22 % | | 13 | C C D / C C D C C C | HB9/EA1FID | 1 | 0.31 % | | 1 | 0.22 % | | 14 | C C D C C C / D | IK4XQT/4 | 1 | 0.31 % | | 2 | 0.45 % | | 15 | C C D D D D C | DL1640Y | 1 | 0.31 % | | 1 | 0.22 % | | 16 | C C D D D C C | TC100TC | 1 | 0.31 % | | 1 | 0.22 % | |
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