| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C D C C C | K0RCJ | 8 | 33.33 % | | 8 | 33.33 % | | 2 | C D C C | K8EP | 8 | 33.33 % | | 8 | 33.33 % | | 3 | C C D C C | AA4NC | 3 | 12.50 % | | 3 | 12.50 % | | 4 | C C D C | AA3B | 2 | 8.33 % | | 2 | 8.33 % | | 5 | C D C | N6N | 2 | 8.33 % | | 2 | 8.33 % | | 6 | C C D C C C | KI6RRN | 1 | 4.17 % | | 1 | 4.17 % | |
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