| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
|---|
| 1 | C D C C C | K4BFT | 8 | 40.00 % | | 8 | 40.00 % | | | 2 | C C D C C C | KC9LZI | 5 | 25.00 % | | 5 | 25.00 % | | | 3 | C D C C | K8BF | 4 | 20.00 % | | 4 | 20.00 % | | | 4 | C C D C C | AE4BL | 2 | 10.00 % | | 2 | 10.00 % | | | 5 | C D C | K9K | 1 | 5.00 % | | 1 | 5.00 % | |
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