| Callsign structure | # | Callsign structure, C - char, D - digit | Example | Callsigns | % | QSOs | % |
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| 1 | C C D C C | BX4AD | 124 | 32.63 % | | 161 | 30.32 % | | | 2 | C C D C C C | DH2URF | 122 | 32.11 % | | 168 | 31.64 % | | | 3 | C C D C | DL2A | 58 | 15.26 % | | 100 | 18.83 % | | | 4 | C D C C C | F5AQB | 25 | 6.58 % | | 29 | 5.46 % | | | 5 | C D C C | G5LP | 19 | 5.00 % | | 26 | 4.90 % | | | 6 | C D D C C | E73SD | 10 | 2.63 % | | 11 | 2.07 % | | | 7 | C D D C | E72U | 6 | 1.58 % | | 10 | 1.88 % | | | 8 | D C D C C | 4K6FO | 5 | 1.32 % | | 7 | 1.32 % | | | 9 | D C D C | 9A5V | 2 | 0.53 % | | 4 | 0.75 % | | | 10 | C C / C C D C C | HB/RN3QO | 2 | 0.53 % | | 3 | 0.56 % | | | 11 | C C D C C C / D | IZ8JFL/1 | 2 | 0.53 % | | 3 | 0.56 % | | | 12 | D C D C C C | 9A1CFR | 1 | 0.26 % | | 1 | 0.19 % | | | 13 | C D / C D D C | I0/S53R | 1 | 0.26 % | | 1 | 0.19 % | | | 14 | C C D D C C | LZ69VZ | 1 | 0.26 % | | 3 | 0.56 % | | | 15 | C D C | M5Z | 1 | 0.26 % | | 2 | 0.38 % | | | 16 | C C D C C / C | YU1DW/P | 1 | 0.26 % | | 2 | 0.38 % | |
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