| Callsign structure # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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1 | C C D C C | DA0HQ | 109 | 37.33 % | | 139 | 37.07 % | | 2 | C C D C | EF8R | 86 | 29.45 % | | 124 | 33.07 % | | 3 | C C D C C C | DL0SOP | 51 | 17.47 % | | 57 | 15.20 % | | 4 | C D C C | E7CW | 19 | 6.51 % | | 23 | 6.13 % | | 5 | D C D C C | 4X4DZ | 10 | 3.42 % | | 11 | 2.93 % | | 6 | C D D C C | E78IW | 8 | 2.74 % | | 10 | 2.67 % | | 7 | C D D C | S51W | 4 | 1.37 % | | 5 | 1.33 % | | 8 | D C D C | 9A5K | 2 | 0.68 % | | 3 | 0.80 % | | 9 | D C / C C D C C | 5B/RN3QO | 1 | 0.34 % | | 1 | 0.27 % | | 10 | C D C | P3X | 1 | 0.34 % | | 1 | 0.27 % | | 11 | C C D D C | YR34A | 1 | 0.34 % | | 1 | 0.27 % | |
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