| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C C | K4KNS | 3 | 37.50 % | | 3 | 37.50 % | | | 2 | C C D C C C | KD9HFW | 2 | 25.00 % | | 2 | 25.00 % | | | 3 | C D C C | K4NN | 1 | 12.50 % | | 1 | 12.50 % | | | 4 | C D C | N4C | 1 | 12.50 % | | 1 | 12.50 % | | | 5 | C C D C C | NC4DP | 1 | 12.50 % | | 1 | 12.50 % | |
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