A peculiar twin-decode on 7th August, where I received AC1JS, based on Swan's Island, Maine, twiceat 14MHz in the same, 11:42UT time slot.
Twin decodes do happen. But this one had the hallmarks of two reception paths - a 3Hz difference in received frequency, a 0.1s delay between the first and second decode, and a 9dB difference in received signal:
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| Situation at 11:42, August 07, 2021. Image: DX Atlas, with permission. |
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| Proppy prediction at 12UT, same day. |
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