Contest Calendar
Corrections and additions please direct to on9tt [at] uba [dot] be (ON9TT)
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| January 2023 | April 2023 | July 2022 | October 2022 |
| February 2023 | May 2023 | August 2022 | November 2022 |
| March 2023 | June 2022 | September 2022 | December 2022 |
| From January 1 untill December 31 CQ DX Marathon on all HF bands in all modes |
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