| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C C | RA4NCC | 4 | 33.33 % | | 25 | 36.23 % | | 2 | C C D C C | RU4NG | 4 | 33.33 % | | 13 | 18.84 % | | 3 | C D C C | R4NX | 2 | 16.67 % | | 16 | 23.19 % | | 4 | C C D C | RT4O | 1 | 8.33 % | | 8 | 11.59 % | | 5 | C D C C C | R4NAU | 1 | 8.33 % | | 7 | 10.14 % | |
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