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National Oceanic and Atmospheric Administration

Friday, July 25, 2025 19:37:53 UTC

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NOAA Scales mini

R1 (Minor) Radio Blackout Impacts
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HF Radio: Weak or minor degradation of HF radio communication on sunlit side, occasional loss of radio contact.
Navigation: Low-frequency navigation signals degraded for brief intervals.
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published: Thursday, October 09, 2014 22:31 UTC

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