| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C C | K8BMI | 5 | 27.78 % | | 5 | 27.78 % | | | 2 | C D C C | K2HX | 5 | 27.78 % | | 5 | 27.78 % | | | 3 | C C D C C C | WB0OHB | 4 | 22.22 % | | 4 | 22.22 % | | | 4 | C C D C C | KD2NC | 2 | 11.11 % | | 2 | 11.11 % | | | 5 | C C D C | AD1T | 2 | 11.11 % | | 2 | 11.11 % | |
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