| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C D C C | K0BJ | 240 | 47.71 % | | 347 | 51.95 % | | 2 | C D C C C | K0GUZ | 92 | 18.29 % | | 111 | 16.62 % | | 3 | C C D C | AA1V | 84 | 16.70 % | | 109 | 16.32 % | | 4 | C C D C C | AA6VX | 52 | 10.34 % | | 58 | 8.68 % | | 5 | C C D C C C | KA3DRR | 30 | 5.96 % | | 38 | 5.69 % | | 6 | C D C C C / D | K8RGI/4 | 1 | 0.20 % | | 1 | 0.15 % | | 7 | C D C C / D | K0XB/6 | 1 | 0.20 % | | 1 | 0.15 % | | 8 | C D D C | N06T | 1 | 0.20 % | | 1 | 0.15 % | | 9 | C C D C C / C D | VA6SS/W7 | 1 | 0.20 % | | 1 | 0.15 % | | 10 | C C D / C C D C C | VE6/KE5JA | 1 | 0.20 % | | 1 | 0.15 % | |
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